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Windows Analysis Report
SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.6225

Overview

General Information

Sample Name:	SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.6225 (renamed file extension from 6225 to exe)
Analysis ID:	632533
MD5:	c1863e820a135d468e9787f1f78970e2
SHA1:	e0846c1117045f4ee73a6493e2207d4f27056b9e
SHA256:	feb8a71e0b6bb912ce22c67275eba157fb10f626e18faeb5119789c7e89ecabd
Tags:	exe
Infos:

Detection

GuLoader

Score:	72
Range:	0 - 100
Whitelisted:	false
Confidence:	100%

Signatures

Found malware configuration

Multi AV Scanner detection for submitted file

Yara detected GuLoader

Tries to detect virtualization through RDTSC time measurements

C2 URLs / IPs found in malware configuration

Uses 32bit PE files

Antivirus or Machine Learning detection for unpacked file

Sample file is different than original file name gathered from version info

PE file contains strange resources

Drops PE files

Contains functionality to shutdown / reboot the system

Uses code obfuscation techniques (call, push, ret)

PE file contains sections with non-standard names

Detected potential crypto function

PE / OLE file has an invalid certificate

Contains functionality to dynamically determine API calls

Found dropped PE file which has not been started or loaded

Abnormal high CPU Usage

Contains functionality for read data from the clipboard

Classification

Process Tree

System is w10x64

SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe (PID: 6516 cmdline: "C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe" MD5: C1863E820A135D468E9787F1F78970E2)

cleanup

Malware Configuration

Threatname: GuLoader

{"Payload URL": "https://drive.google.com/uc?export=download&id=16-ZmAFjeTzH9DAbqoP0u2zSq7p2C4wzm"}

Yara Signatures

Memory Dumps

Source	Rule	Description	Author	Strings
00000000.00000002.545755937.00000000030B0000.00000040.00001000.00020000.00000000.sdmp	JoeSecurity_GuLoader_2	Yara detected GuLoader	Joe Security

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

AV Detection

Found malware configuration

Source: 00000000.00000002.545755937.00000000030B0000.00000040.00001000.00020000.00000000.sdmp

Malware Configuration Extractor: GuLoader {"Payload URL": "https://drive.google.com/uc?export=download&id=16-ZmAFjeTzH9DAbqoP0u2zSq7p2C4wzm"}

Multi AV Scanner detection for submitted file

Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe

Virustotal: Detection: 13%

Perma Link

Source: 0.2.SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe.410c71.1.unpack

Avira: Label: ADWARE/Patched.Ren.Gen7

Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe

Static PE information: LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, RELOCS_STRIPPED

Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe

Static PE information: NO_SEH, TERMINAL_SERVER_AWARE, DYNAMIC_BASE, NX_COMPAT

Source:	Binary string: DIFXAPI.pdb source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, DiFxAPI.dll.0.dr
Source:	Binary string: D:\corp\project\swnr\portaudio\build\msvc\x64\Release\portaudio_x64.pdb++ source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, portaudio_x64.dll.0.dr
Source:	Binary string: D:\corp\project\swnr\portaudio\build\msvc\x64\Release\portaudio_x64.pdb source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, portaudio_x64.dll.0.dr
Source:	Binary string: DIFXAPI.pdbH source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, DiFxAPI.dll.0.dr
Source:	Binary string: d:\build\ob\bora-18379147\bora-vmsoft\build\release-x64\svga\wddm\src\devapi\Win8Release\x64\bin\vm3ddevapi64-release.pdb source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, vm3ddevapi64-release.dll.0.dr

Source: C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	Code function: 0_2_00405D74 CloseHandle,GetTempPathW,DeleteFileW,lstrcatW,lstrcatW,lstrlenW,FindFirstFileW,FindNextFileW,FindClose,
Source: C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	Code function: 0_2_0040290B FindFirstFileW,
Source: C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	Code function: 0_2_0040699E FindFirstFileW,FindClose,

Networking

C2 URLs / IPs found in malware configuration

Source: Malware configuration extractor

URLs: https://drive.google.com/uc?export=download&id=16-ZmAFjeTzH9DAbqoP0u2zSq7p2C4wzm

Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, DiFxAPI.dll.0.dr	String found in binary or memory: http://cacerts.digicert.com/DigiCertAssuredIDCA-1.crt0
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, vm3ddevapi64-release.dll.0.dr	String found in binary or memory: http://cacerts.digicert.com/DigiCertAssuredIDCodeSigningCA-1.crt0
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.544470071.000000000040A000.00000004.00000001.01000000.00000003.sdmp, SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, DiFxAPI.dll.0.dr, vm3ddevapi64-release.dll.0.dr	String found in binary or memory: http://cacerts.digicert.com/DigiCertAssuredIDRootCA.crt0
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, DiFxAPI.dll.0.dr	String found in binary or memory: http://cacerts.digicert.com/DigiCertEVCodeSigningCA-SHA2.crt0
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, DiFxAPI.dll.0.dr	String found in binary or memory: http://cacerts.digicert.com/DigiCertHighAssuranceEVRootCA.crt0
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.544470071.000000000040A000.00000004.00000001.01000000.00000003.sdmp, SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, vm3ddevapi64-release.dll.0.dr	String found in binary or memory: http://cacerts.digicert.com/DigiCertSHA2AssuredIDTimestampingCA.crt0
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	String found in binary or memory: http://crl.certum.pl/ctnca.crl0k
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	String found in binary or memory: http://crl.certum.pl/ctnca2.crl0l
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	String found in binary or memory: http://crl.certum.pl/ctsca2021.crl0o
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, portaudio_x64.dll.0.dr	String found in binary or memory: http://crl.globalsign.com/gs/gstimestampingsha2g2.crl0
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, portaudio_x64.dll.0.dr	String found in binary or memory: http://crl.globalsign.com/gsextendcodesignsha2g3.crl0
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, portaudio_x64.dll.0.dr	String found in binary or memory: http://crl.globalsign.com/root-r3.crl0b
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, portaudio_x64.dll.0.dr	String found in binary or memory: http://crl.globalsign.com/root.crl0G
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, portaudio_x64.dll.0.dr	String found in binary or memory: http://crl.globalsign.net/root-r3.crl0
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, DiFxAPI.dll.0.dr	String found in binary or memory: http://crl3.digicert.com/DigiCertAssuredIDCA-1.crl08
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, DiFxAPI.dll.0.dr, vm3ddevapi64-release.dll.0.dr	String found in binary or memory: http://crl3.digicert.com/DigiCertAssuredIDRootCA.crl0:
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.544470071.000000000040A000.00000004.00000001.01000000.00000003.sdmp, SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, vm3ddevapi64-release.dll.0.dr	String found in binary or memory: http://crl3.digicert.com/DigiCertAssuredIDRootCA.crl0P
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, DiFxAPI.dll.0.dr	String found in binary or memory: http://crl3.digicert.com/DigiCertHighAssuranceEVRootCA.crl0
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, DiFxAPI.dll.0.dr	String found in binary or memory: http://crl3.digicert.com/EVCodeSigningSHA2-g1.crl07
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, vm3ddevapi64-release.dll.0.dr	String found in binary or memory: http://crl3.digicert.com/assured-cs-g1.crl00
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.544470071.000000000040A000.00000004.00000001.01000000.00000003.sdmp, SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, vm3ddevapi64-release.dll.0.dr	String found in binary or memory: http://crl3.digicert.com/sha2-assured-ts.crl02
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, DiFxAPI.dll.0.dr	String found in binary or memory: http://crl4.digicert.com/DigiCertAssuredIDCA-1.crl0w
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, DiFxAPI.dll.0.dr, vm3ddevapi64-release.dll.0.dr	String found in binary or memory: http://crl4.digicert.com/DigiCertAssuredIDRootCA.crl0
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.544470071.000000000040A000.00000004.00000001.01000000.00000003.sdmp, SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, vm3ddevapi64-release.dll.0.dr	String found in binary or memory: http://crl4.digicert.com/DigiCertAssuredIDRootCA.crl0:
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, DiFxAPI.dll.0.dr	String found in binary or memory: http://crl4.digicert.com/DigiCertHighAssuranceEVRootCA.crl0
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, DiFxAPI.dll.0.dr	String found in binary or memory: http://crl4.digicert.com/EVCodeSigningSHA2-g1.crl0B
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, vm3ddevapi64-release.dll.0.dr	String found in binary or memory: http://crl4.digicert.com/assured-cs-g1.crl0L
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.544470071.000000000040A000.00000004.00000001.01000000.00000003.sdmp, SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, vm3ddevapi64-release.dll.0.dr	String found in binary or memory: http://crl4.digicert.com/sha2-assured-ts.crl0
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	String found in binary or memory: http://nsis.sf.net/NSIS_ErrorError
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, DiFxAPI.dll.0.dr	String found in binary or memory: http://ocsp.digicert.com0A
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.544470071.000000000040A000.00000004.00000001.01000000.00000003.sdmp, SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, DiFxAPI.dll.0.dr, vm3ddevapi64-release.dll.0.dr	String found in binary or memory: http://ocsp.digicert.com0C
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, DiFxAPI.dll.0.dr	String found in binary or memory: http://ocsp.digicert.com0H
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, DiFxAPI.dll.0.dr	String found in binary or memory: http://ocsp.digicert.com0I
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, vm3ddevapi64-release.dll.0.dr	String found in binary or memory: http://ocsp.digicert.com0L
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.544470071.000000000040A000.00000004.00000001.01000000.00000003.sdmp, SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, vm3ddevapi64-release.dll.0.dr	String found in binary or memory: http://ocsp.digicert.com0O
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, portaudio_x64.dll.0.dr	String found in binary or memory: http://ocsp.globalsign.com/rootr103
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, portaudio_x64.dll.0.dr	String found in binary or memory: http://ocsp2.globalsign.com/gsextendcodesignsha2g30U
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, portaudio_x64.dll.0.dr	String found in binary or memory: http://ocsp2.globalsign.com/gstimestampingsha2g20
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, portaudio_x64.dll.0.dr	String found in binary or memory: http://ocsp2.globalsign.com/rootr306
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	String found in binary or memory: http://repository.certum.pl/ctnca.cer09
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	String found in binary or memory: http://repository.certum.pl/ctnca2.cer09
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	String found in binary or memory: http://repository.certum.pl/ctsca2021.cer0
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.544470071.000000000040A000.00000004.00000001.01000000.00000003.sdmp, SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, vm3ddevapi64-release.dll.0.dr	String found in binary or memory: http://s1.symcb.com/pca3-g5.crl0
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.544470071.000000000040A000.00000004.00000001.01000000.00000003.sdmp, SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, vm3ddevapi64-release.dll.0.dr	String found in binary or memory: http://s2.symcb.com0
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, portaudio_x64.dll.0.dr	String found in binary or memory: http://secure.globalsign.com/cacert/gsextendcodesignsha2g3ocsp.crt0
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, portaudio_x64.dll.0.dr	String found in binary or memory: http://secure.globalsign.com/cacert/gstimestampingsha2g2.crt0
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	String found in binary or memory: http://subca.ocsp-certum.com01
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	String found in binary or memory: http://subca.ocsp-certum.com02
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	String found in binary or memory: http://subca.ocsp-certum.com05
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, vm3ddevapi64-release.dll.0.dr	String found in binary or memory: http://sv.symcb.com/sv.crl0a
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, vm3ddevapi64-release.dll.0.dr	String found in binary or memory: http://sv.symcb.com/sv.crt0
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, vm3ddevapi64-release.dll.0.dr	String found in binary or memory: http://sv.symcd.com0&
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	String found in binary or memory: http://www.certum.pl/CPS0
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.544470071.000000000040A000.00000004.00000001.01000000.00000003.sdmp, SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, vm3ddevapi64-release.dll.0.dr	String found in binary or memory: http://www.digicert.com/CPS0
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, DiFxAPI.dll.0.dr, vm3ddevapi64-release.dll.0.dr	String found in binary or memory: http://www.digicert.com/ssl-cps-repository.htm0
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.544470071.000000000040A000.00000004.00000001.01000000.00000003.sdmp, SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, vm3ddevapi64-release.dll.0.dr	String found in binary or memory: http://www.symauth.com/cps0(
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.544470071.000000000040A000.00000004.00000001.01000000.00000003.sdmp, SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, vm3ddevapi64-release.dll.0.dr	String found in binary or memory: http://www.symauth.com/rpa00
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, vm3ddevapi64-release.dll.0.dr	String found in binary or memory: http://www.vmware.com/0
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.544470071.000000000040A000.00000004.00000001.01000000.00000003.sdmp, SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, vm3ddevapi64-release.dll.0.dr	String found in binary or memory: http://www.vmware.com/0/
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, vm3ddevapi64-release.dll.0.dr	String found in binary or memory: https://d.symcb.com/cps0%
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, vm3ddevapi64-release.dll.0.dr	String found in binary or memory: https://d.symcb.com/rpa0
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.544470071.000000000040A000.00000004.00000001.01000000.00000003.sdmp, SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, DiFxAPI.dll.0.dr, vm3ddevapi64-release.dll.0.dr	String found in binary or memory: https://www.digicert.com/CPS0
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, DiFxAPI.dll.0.dr	String found in binary or memory: https://www.digicert.com/CPS0~
Source: portaudio_x64.dll.0.dr	String found in binary or memory: https://www.globalsign.com/repository/0
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, portaudio_x64.dll.0.dr	String found in binary or memory: https://www.globalsign.com/repository/06

Source: C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe

Code function: 0_2_00405809 GetDlgItem,GetDlgItem,GetDlgItem,GetDlgItem,GetClientRect,GetSystemMetrics,SendMessageW,SendMessageW,SendMessageW,SendMessageW,SendMessageW,SendMessageW,ShowWindow,ShowWindow,GetDlgItem,SendMessageW,SendMessageW,SendMessageW,GetDlgItem,CreateThread,FindCloseChangeNotification,ShowWindow,ShowWindow,ShowWindow,ShowWindow,SendMessageW,CreatePopupMenu,AppendMenuW,GetWindowRect,TrackPopupMenu,SendMessageW,OpenClipboard,EmptyClipboard,GlobalAlloc,GlobalLock,SendMessageW,GlobalUnlock,SetClipboardData,CloseClipboard,

Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe

Static PE information: LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, RELOCS_STRIPPED

Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.544470071.000000000040A000.00000004.00000001.01000000.00000003.sdmp	Binary or memory string: OriginalFilenamevm3ddevapi64-release.dll> vs SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp	Binary or memory string: OriginalFilenameDIFxAPI.dllp( vs SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp	Binary or memory string: OriginalFilenameportaudio_x64.dllL vs SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp	Binary or memory string: OriginalFilenamevm3ddevapi64-release.dll> vs SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe

Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe

Static PE information: Resource name: RT_ICON type: GLS_BINARY_LSB_FIRST

Source: C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe

Code function: 0_2_00403640 EntryPoint,SetErrorMode,GetVersionExW,GetVersionExW,GetVersionExW,lstrlenA,#17,OleInitialize,SHGetFileInfoW,GetCommandLineW,CharNextW,GetTempPathW,GetTempPathW,GetWindowsDirectoryW,lstrcatW,GetTempPathW,lstrcatW,SetEnvironmentVariableW,SetEnvironmentVariableW,SetEnvironmentVariableW,DeleteFileW,lstrcatW,lstrcatW,lstrcatW,lstrcmpiW,SetCurrentDirectoryW,DeleteFileW,CopyFileW,CloseHandle,OleUninitialize,ExitProcess,GetCurrentProcess,OpenProcessToken,LookupPrivilegeValueW,AdjustTokenPrivileges,ExitWindowsEx,ExitProcess,

Source: C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	Code function: 0_2_00406D5F
Source: C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	Code function: 0_2_72E61BFF

Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe

Static PE information: invalid certificate

Source: C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe

Process Stats: CPU usage > 98%

Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe

Virustotal: Detection: 13%

Source: C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe

File read: C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe

Jump to behavior

Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe

Static PE information: Section: .text IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ

Source: C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe

Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers

Source: C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe

Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f486a52-3cb1-48fd-8f50-b8dc300d9f9d}\InProcServer32

Source: C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe

File created: C:\Users\user\AppData\Local\Temp\nsf5DEF.tmp

Jump to behavior

Source: classification engine

Classification label: mal72.troj.evad.winEXE@1/8@0/0

Source: C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe

Code function: 0_2_004021AA CoCreateInstance,

Source: C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe

File read: C:\Users\desktop.ini

Jump to behavior

Source: C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe

Code function: 0_2_00404AB5 GetDlgItem,SetWindowTextW,SHBrowseForFolderW,CoTaskMemFree,lstrcmpiW,lstrcatW,SetDlgItemTextW,GetDiskFreeSpaceW,MulDiv,SetDlgItemTextW,

Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe

Static PE information: NO_SEH, TERMINAL_SERVER_AWARE, DYNAMIC_BASE, NX_COMPAT

Source:	Binary string: DIFXAPI.pdb source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, DiFxAPI.dll.0.dr
Source:	Binary string: D:\corp\project\swnr\portaudio\build\msvc\x64\Release\portaudio_x64.pdb++ source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, portaudio_x64.dll.0.dr
Source:	Binary string: D:\corp\project\swnr\portaudio\build\msvc\x64\Release\portaudio_x64.pdb source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, portaudio_x64.dll.0.dr
Source:	Binary string: DIFXAPI.pdbH source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, DiFxAPI.dll.0.dr
Source:	Binary string: d:\build\ob\bora-18379147\bora-vmsoft\build\release-x64\svga\wddm\src\devapi\Win8Release\x64\bin\vm3ddevapi64-release.pdb source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, vm3ddevapi64-release.dll.0.dr

Data Obfuscation

Yara detected GuLoader

Source: Yara match

File source: 00000000.00000002.545755937.00000000030B0000.00000040.00001000.00020000.00000000.sdmp, type: MEMORY

Source: C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe

Code function: 0_2_72E630C0 push eax; ret

Source: vm3ddevapi64-release.dll.0.dr	Static PE information: section name: .didat
Source: vm3ddevapi64-release.dll.0.dr	Static PE information: section name: .gehcont
Source: vm3ddevapi64-release.dll.0.dr	Static PE information: section name: _RDATA

Source: C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe

Code function: 0_2_72E61BFF GlobalAlloc,lstrcpyW,lstrcpyW,GlobalFree,GlobalFree,GlobalFree,GlobalFree,GlobalFree,GlobalFree,lstrcpyW,GetModuleHandleW,LoadLibraryW,GetProcAddress,lstrlenW,

Source: C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	File created: C:\Users\user\AppData\Local\Temp\vm3ddevapi64-release.dll	Jump to dropped file
Source: C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	File created: C:\Users\user\AppData\Local\Temp\nsl5F49.tmp\System.dll	Jump to dropped file
Source: C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	File created: C:\Users\user\AppData\Local\Temp\portaudio_x64.dll	Jump to dropped file
Source: C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	File created: C:\Users\user\AppData\Local\Temp\DiFxAPI.dll	Jump to dropped file

Source: C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	Process information set: NOOPENFILEERRORBOX

Malware Analysis System Evasion

Tries to detect virtualization through RDTSC time measurements

Source: C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe

RDTSC instruction interceptor: First address: 00000000030B26E3 second address: 00000000030B26E3 instructions: 0x00000000 rdtsc 0x00000002 jmp 00007F3098D27D2Eh 0x00000004 test eax, 8E9E6DB0h 0x00000009 cmp ebx, ecx 0x0000000b jc 00007F3098D27CA7h 0x0000000d inc ebp 0x0000000e inc ebx 0x0000000f rdtsc

Source: C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	Dropped PE file which has not been started: C:\Users\user\AppData\Local\Temp\vm3ddevapi64-release.dll	Jump to dropped file
Source: C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	Dropped PE file which has not been started: C:\Users\user\AppData\Local\Temp\portaudio_x64.dll	Jump to dropped file
Source: C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	Dropped PE file which has not been started: C:\Users\user\AppData\Local\Temp\DiFxAPI.dll	Jump to dropped file

Source: C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	Code function: 0_2_00405D74 CloseHandle,GetTempPathW,DeleteFileW,lstrcatW,lstrcatW,lstrlenW,FindFirstFileW,FindNextFileW,FindClose,
Source: C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	Code function: 0_2_0040290B FindFirstFileW,
Source: C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	Code function: 0_2_0040699E FindFirstFileW,FindClose,

Source: C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	API call chain: ExitProcess graph end node
Source: C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	API call chain: ExitProcess graph end node

Source: vm3ddevapi64-release.dll.0.dr	Binary or memory string: CompanyNameVMware, Inc.j!
Source: vm3ddevapi64-release.dll.0.dr	Binary or memory string: FileDescriptionVMware SVGA 3D Device API Module:
Source: vm3ddevapi64-release.dll.0.dr	Binary or memory string: noreply@vmware.com0
Source: vm3ddevapi64-release.dll.0.dr	Binary or memory string: http://www.vmware.com/0
Source: vm3ddevapi64-release.dll.0.dr	Binary or memory string: VMware, Inc.
Source: vm3ddevapi64-release.dll.0.dr	Binary or memory string: VMware, Inc.1!0
Source: SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.544839658.000000000079C000.00000004.00000020.00020000.00000000.sdmp	Binary or memory string: \\?\SCSI#CdRom&Ven_NECVMWar&Prod_VMware_SATA_CD00#5&280b647&0&000000#{53f5630d-b6bf-11d0-94f2-00a0c91efb8b}\\\?\Volume{e6e9dfd8-98f2-11e9-90ce-806e6f6e6963}\
Source: vm3ddevapi64-release.dll.0.dr	Binary or memory string: http://www.vmware.com/0/
Source: vm3ddevapi64-release.dll.0.dr	Binary or memory string: Software\VMware, Inc.\VMware SVGA
Source: vm3ddevapi64-release.dll.0.dr	Binary or memory string: VMware, Inc.1
Source: vm3ddevapi64-release.dll.0.dr	Binary or memory string: VMware, Inc.0
Source: vm3ddevapi64-release.dll.0.dr	Binary or memory string: ProductNameVMware SVGA 3D`
Source: vm3ddevapi64-release.dll.0.dr	Binary or memory string: ?dbghelp.dllSoftware\VMware, Inc.\VMware SVGADebugSearchPathBacktrace[%2d] rip=%p %s+%#x %s:%d
Source: vm3ddevapi64-release.dll.0.dr	Binary or memory string: LegalCopyrightCopyright (C) 1998-2021 VMware, Inc.Z

Source: C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe

Code function: 0_2_72E61BFF GlobalAlloc,lstrcpyW,lstrcpyW,GlobalFree,GlobalFree,GlobalFree,GlobalFree,GlobalFree,GlobalFree,lstrcpyW,GetModuleHandleW,LoadLibraryW,GetProcAddress,lstrlenW,

Source: C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe

Mitre Att&ck Matrix

Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Exfiltration	Command and Control	Network Effects	Remote Service Effects	Impact
Valid Accounts	1 Native API	Path Interception	1 Access Token Manipulation	1 Access Token Manipulation	OS Credential Dumping	11 Security Software Discovery	Remote Services	1 Archive Collected Data	Exfiltration Over Other Network Medium	1 Encrypted Channel	Eavesdrop on Insecure Network Communication	Remotely Track Device Without Authorization	1 System Shutdown/Reboot
Default Accounts	Scheduled Task/Job	Boot or Logon Initialization Scripts	Boot or Logon Initialization Scripts	1 Software Packing	LSASS Memory	2 File and Directory Discovery	Remote Desktop Protocol	1 Clipboard Data	Exfiltration Over Bluetooth	1 Application Layer Protocol	Exploit SS7 to Redirect Phone Calls/SMS	Remotely Wipe Data Without Authorization	Device Lockout
Domain Accounts	At (Linux)	Logon Script (Windows)	Logon Script (Windows)	1 Obfuscated Files or Information	Security Account Manager	13 System Information Discovery	SMB/Windows Admin Shares	Data from Network Shared Drive	Automated Exfiltration	Steganography	Exploit SS7 to Track Device Location	Obtain Device Cloud Backups	Delete Device Data

Behavior Graph

Hide Legend

Legend:

Process
Signature
Created File
DNS/IP Info
Is Dropped
Is Windows Process
Number of created Registry Values
Number of created Files
Visual Basic
Delphi
Java
.Net C# or VB.NET
C, C++ or other language
Is malicious
Internet

Source	Detection	Scanner	Label	Link
SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	14%	Virustotal		Browse
SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	7%	ReversingLabs	Win32.Downloader.GuLoader

Dropped Files

Source	Detection	Scanner	Link
C:\Users\user\AppData\Local\Temp\DiFxAPI.dll	0%	Metadefender	Browse
C:\Users\user\AppData\Local\Temp\DiFxAPI.dll	0%	ReversingLabs
C:\Users\user\AppData\Local\Temp\nsl5F49.tmp\System.dll	3%	Metadefender	Browse
C:\Users\user\AppData\Local\Temp\nsl5F49.tmp\System.dll	0%	ReversingLabs
C:\Users\user\AppData\Local\Temp\portaudio_x64.dll	0%	ReversingLabs
C:\Users\user\AppData\Local\Temp\vm3ddevapi64-release.dll	0%	ReversingLabs

Unpacked PE Files

Source	Detection	Scanner	Label	Link	Download
0.2.SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe.410c71.1.unpack	100%	Avira	ADWARE/Patched.Ren.Gen7		Download File

Domains

⊘No Antivirus matches

URLs

Source	Detection	Scanner	Label
http://subca.ocsp-certum.com05	0%	Avira URL Cloud	safe
http://subca.ocsp-certum.com02	0%	URL Reputation	safe
http://subca.ocsp-certum.com01	0%	URL Reputation	safe

Name	Source	Malicious	Antivirus Detection	Reputation
http://crl.certum.pl/ctsca2021.crl0o	SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	false		high
http://repository.certum.pl/ctnca.cer09	SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	false		high
http://www.vmware.com/0	SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, vm3ddevapi64-release.dll.0.dr	false		high
http://repository.certum.pl/ctsca2021.cer0	SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	false		high
http://crl.certum.pl/ctnca.crl0k	SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	false		high
http://subca.ocsp-certum.com05	SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	false	Avira URL Cloud: safe	unknown
http://www.symauth.com/rpa00	SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.544470071.000000000040A000.00000004.00000001.01000000.00000003.sdmp, SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, vm3ddevapi64-release.dll.0.dr	false		high
http://subca.ocsp-certum.com02	SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	false	URL Reputation: safe	unknown
http://subca.ocsp-certum.com01	SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	false	URL Reputation: safe	unknown
http://crl.certum.pl/ctnca2.crl0l	SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	false		high
http://repository.certum.pl/ctnca2.cer09	SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	false		high
http://www.vmware.com/0/	SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.544470071.000000000040A000.00000004.00000001.01000000.00000003.sdmp, SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, vm3ddevapi64-release.dll.0.dr	false		high
http://nsis.sf.net/NSIS_ErrorError	SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	false		high
http://www.symauth.com/cps0(	SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.544470071.000000000040A000.00000004.00000001.01000000.00000003.sdmp, SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe, 00000000.00000002.545391405.000000000280D000.00000004.00000800.00020000.00000000.sdmp, vm3ddevapi64-release.dll.0.dr	false		high
http://www.certum.pl/CPS0	SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe	false		high

World Map of Contacted IPs

⊘No contacted IP infos

General Information

Joe Sandbox Version:	34.0.0 Boulder Opal
Analysis ID:	632533
Start date and time: 23/05/202218:46:50	2022-05-23 18:46:50 +02:00
Joe Sandbox Product:	CloudBasic
Overall analysis duration:	0h 6m 1s
Hypervisor based Inspection enabled:	false
Report type:	light
Sample file name:	SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.6225 (renamed file extension from 6225 to exe)
Cookbook file name:	default.jbs
Analysis system description:	Windows 10 64 bit v1803 with Office Professional Plus 2016, Chrome 85, IE 11, Adobe Reader DC 19, Java 8 Update 211
Number of analysed new started processes analysed:	18
Number of new started drivers analysed:	0
Number of existing processes analysed:	0
Number of existing drivers analysed:	0
Number of injected processes analysed:	0
Technologies:	HCA enabled EGA enabled HDC enabled AMSI enabled
Analysis Mode:	default
Analysis stop reason:	Timeout
Detection:	MAL
Classification:	mal72.troj.evad.winEXE@1/8@0/0
EGA Information:	Successful, ratio: 100%
HDC Information:	Successful, ratio: 86% (good quality ratio 84.7%) Quality average: 87.8% Quality standard deviation: 21.3%
HCA Information:	Successful, ratio: 100% Number of executed functions: 0 Number of non-executed functions: 0
Cookbook Comments:	Adjust boot time Enable AMSI

Warnings

Exclude process from analysis (whitelisted): MpCmdRun.exe, BackgroundTransferHost.exe, backgroundTaskHost.exe, SgrmBroker.exe, conhost.exe, svchost.exe
Excluded domains from analysis (whitelisted): fs.microsoft.com, store-images.s-microsoft.com, login.live.com, ctldl.windowsupdate.com, arc.msn.com
Not all processes where analyzed, report is missing behavior information
Report size getting too big, too many NtQueryValueKey calls found.
Report size getting too big, too many NtSetInformationFile calls found.

Process:	C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe
File Type:	PE32+ executable (DLL) (GUI) x86-64, for MS Windows
Category:	dropped
Size (bytes):	526456
Entropy (8bit):	6.008806658212827
Encrypted:	false
SSDEEP:	12288:5sxYL+kJmoPdVp6s3EJBjCvuF17+2NdJfh:5sxwSoPdVoBjCvuF17+2NdJfh
MD5:	52672A1E48BC8BE4035D8A4F345DFE44
SHA1:	4F7EB09FF33DFACE6CE24BEB33E51D1DA5A3ABA1
SHA-256:	87BA988A4858079CADCA5EAA760482CC5F1F05830EE62BBC5FDD9BF7B181F0D0
SHA-512:	4F589CE3FC97F1DBDB575510924B5AEA58061B2D95F909456ACDB170414282A081C18CA9945E604FBCE6F17D626B02B178E66294927C5350B91072357DABAEF1
Malicious:	false
Antivirus:	Antivirus: Metadefender, Detection: 0%, Browse Antivirus: ReversingLabs, Detection: 0%
Reputation:	low
Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.......T1...P.F.P.F.P.F7..F.P.F.P.F#Q.F7..F.P.F7..F.P.F7..F/P.F7..F.P.F7..F.P.F7..F.P.F7..F.P.F7..F.P.FRich.P.F........................PE..d.....IE.........." .....$.....................a.............................0.......x....@..........................................0......P................`..........x.... ......p...................................................(............................text...L".......$.................. ..`.data...0....@.......(..............@....pdata.......`.......0..............@..@.rsrc...............................@..@.reloc..$.... ......................@..B........................................................................................................................................................................................................................................................................................

C:\Users\user\AppData\Local\Temp\Forbudenes2.MON

Download File

Process:	C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe
File Type:	data
Category:	dropped
Size (bytes):	85376
Entropy (8bit):	6.4589932976051125
Encrypted:	false
SSDEEP:	1536:6ybWiSppvqBzm4gSPbgnNjbZl9IJ9ISQRyQWG:dbbOpGzm4gSPwZK3ISWWG
MD5:	F0B06E29DCFE977FC30F6CD15CC4962B
SHA1:	7A3F4FEA84FDE5D28E35915E5D3EDC74D3D7E1A8
SHA-256:	107B2444699BBD4FB8BAF65EDB23F1AA7B082B8C08F2FDD1F608DEBC43857B6C
SHA-512:	1C68088B84847545A2CD527FC5EC14F05D5884AFFBC7EC6EAEB5B426DC3079A50A29822790015E8A8C7FC5744A95C4F075BE12BAB108BD5AF9954E3CB4B03B78
Malicious:	false
Reputation:	low
Preview:	.....f........1...fffffffffffffffffffffffffffffffffffffffffffff.f.........`..,.-l.vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv.........f.n..,..X............................................f.h.f.e......../vs.............................................................7'..[................................................... .f...f.b.f.r....3..e;```````````````````````````````````````````````.........c.. ..7nEEEEEEEEEEEEEEEEEEEEEEEEEEEE.&.)i.......$.D7<...................................f.....f.j.....f....5w..-..........................................................J.-@JJJJJJJJJJJJJJJJJJJJJJJJJJ<#..........0M%._<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<f.....f.c..u........!..Z?.............................f...wf.d......3}.LB11111111111111111111111111111111111111111111111.......~.......%*..!555555555555555555555555555555555....................$..!wwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww.........f.u........c..e..........................f......f.c........9.}.........................f......

C:\Users\user\AppData\Local\Temp\MEMORABLENESS.lnk

Download File

Process:	C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe
File Type:	MS Windows shortcut, Item id list present, Has Relative path, ctime=Sun Dec 31 23:06:32 1600, mtime=Sun Dec 31 23:06:32 1600, atime=Sun Dec 31 23:06:32 1600, length=0, window=hide
Category:	dropped
Size (bytes):	912
Entropy (8bit):	3.0099451499929035
Encrypted:	false
SSDEEP:	12:8gl00sXou41w/tz+7RafgKD7A6K5wKNLkwKNeg/3NJkKAd4t2Y+xIBjK:8Df4eaRMgKfAh5JNoJNe49HAv7aB
MD5:	01DF88835AF6086863EF4F022BD18DF3
SHA1:	58B994BF0E9D425CB807F5D1FEB258BF6F904D8E
SHA-256:	2978C4613981F35AE451A7FD20C06854ED7AC5306EBDC77DCDB71A457A65414D
SHA-512:	4FEF45A8B203F1B425CF180CEBDFAAF128A25A0A1FC5EC10C91D875157282B7F94331B79CE843112946D7007C4F5DA2D8719908350A0A1FF68A43597B17E3FCE
Malicious:	false
Reputation:	low
Preview:	L..................F........................................................G....P.O. .:i.....+00.../C:\...................P.1...........Users.<............................................U.s.e.r.s.....P.1...........user.<............................................h.a.r.d.z.....V.1...........AppData.@............................................A.p.p.D.a.t.a.....P.1...........Local.<............................................L.o.c.a.l.....N.1...........Temp..:............................................T.e.m.p.......2...........Prologfortolkernes.exe..^............................................P.r.o.l.o.g.f.o.r.t.o.l.k.e.r.n.e.s...e.x.e...&.......\.P.r.o.l.o.g.f.o.r.t.o.l.k.e.r.n.e.s...e.x.e.........(.................l^".`G...3..qs................1SPS.XF.L8C....&.m.q............/...S.-.1.-.5.-.2.1.-.3.8.5.3.3.2.1.9.3.5.-.2.1.2.5.5.6.3.2.0.9.-.4.0.5.3.0.6.2.3.3.2.-.1.0.0.2.................

C:\Users\user\AppData\Local\Temp\Standardiserede7.sma

Download File

Process:	C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe
File Type:	ASCII text, with very long lines, with no line terminators
Category:	dropped
Size (bytes):	28538
Entropy (8bit):	3.99969839684347
Encrypted:	false
SSDEEP:	384:ack3J1V0v3sPqlYpd5b+QnSp9RSa4k75yUXkv0kE6QlV6uU1KeKQHZ6wlmcM6qTx:acqwxWpbhnyGSEU65KAAwl4aZizuupd
MD5:	D929AC69DE308581CF1CC35EBBFA488B
SHA1:	BE7C776F3E7AF782A8B2DD02C34711357A131853
SHA-256:	B5AA2FA0DA767023E6B44DC3F0EC6746D4F8BDE83A36223055671139F4BE7E38
SHA-512:	4495A77C13B10DA4DA8C525D6D21BFB0A3EC3245592BA7132519B4547294A3EF9182C8B6E08BE1E1BEA2D366DF8F70D1DE9F0B8842A3910294271C5D9D008305
Malicious:	false
Reputation:	low
Preview:	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

C:\Users\user\AppData\Local\Temp\document-open-recent-symbolic.svg

Download File

Process:	C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe
File Type:	SVG Scalable Vector Graphics image
Category:	dropped
Size (bytes):	856
Entropy (8bit):	5.104082637403519
Encrypted:	false
SSDEEP:	12:t4CP5GdKdj9xclSaRaUlYzXHnbt1tUg1yU2hz4AeWTjiu+1ITpLhz4AeWK:t4CBGMFklSelln4AeWoI9x4AeWK
MD5:	93721360A2E739317994A0478117B840
SHA1:	459A0D7C35526AD3E03BE62E41C2AC1BF2518F6A
SHA-256:	15322D905A2DA0DFC566C0A17E9CFB303F5EDCCDB97CF30970AAEF6249E3A67A
SHA-512:	9AEFEB4749652BD968AF4F5FB9009715E913848F8662DF54955B9D0A25AEC10F0FC6701D4E470E4C5DC2CAC3A28073DDA13E1BC57F32319D5ECF83DC588EEC62
Malicious:	false
Reputation:	low
Preview:	<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16"><g color="#000" font-weight="400" font-family="Sans" fill="#474747"><path d="M8.487.02A7.492 7.492 0 001 7.507a7.492 7.492 0 007.487 7.486 7.492 7.492 0 007.486-7.486A7.492 7.492 0 008.487.02zm0 1.973A5.508 5.508 0 0114 7.507a5.508 5.508 0 01-5.513 5.513 5.508 5.508 0 01-5.514-5.513 5.508 5.508 0 015.514-5.514z" style="line-height:normal;-inkscape-font-specification:Sans;text-indent:0;text-align:start;text-decoration-line:none;text-transform:none;marker:none" overflow="visible"/><path d="M11.393 4.007a.5.5 0 00-.25.156L8.487 6.819 6.83 5.163a.5.5 0 10-.687.687l2 2a.5.5 0 00.687 0l3-3a.5.5 0 00-.437-.843z" style="line-height:normal;-inkscape-font-specification:Sans;text-indent:0;text-align:start;text-decoration-line:none;text-transform:none;marker:none" overflow="visible"/></g></svg>

C:\Users\user\AppData\Local\Temp\nsl5F49.tmp\System.dll

Download File

Process:	C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe
File Type:	PE32 executable (DLL) (GUI) Intel 80386, for MS Windows
Category:	modified
Size (bytes):	12288
Entropy (8bit):	5.814115788739565
Encrypted:	false
SSDEEP:	192:Zjvco0qWTlt70m5Aj/lQ0sEWD/wtYbBHFNaDybC7y+XBz0QPi:FHQlt70mij/lQRv/9VMjzr
MD5:	CFF85C549D536F651D4FB8387F1976F2
SHA1:	D41CE3A5FF609DF9CF5C7E207D3B59BF8A48530E
SHA-256:	8DC562CDA7217A3A52DB898243DE3E2ED68B80E62DDCB8619545ED0B4E7F65A8
SHA-512:	531D6328DAF3B86D85556016D299798FA06FEFC81604185108A342D000E203094C8C12226A12BD6E1F89B0DB501FB66F827B610D460B933BD4AB936AC2FD8A88
Malicious:	false
Antivirus:	Antivirus: Metadefender, Detection: 3%, Browse Antivirus: ReversingLabs, Detection: 0%
Reputation:	moderate, very likely benign file
Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.......qr.5.D.5.D.5.D...J.2.D.5.E.!.D.....2.D.a0t.1.D.V1n.4.D..3@.4.D.Rich5.D.........PE..L.....Oa...........!....."..................@...............................p............@..........................B.......@..P............................`.......................................................@..X............................text.... .......".................. ..`.rdata..c....@.......&..............@..@.data...x....P.......*..............@....reloc.......`.......,..............@..B................................................................................................................................................................................................................................................................................................................................................................................................

C:\Users\user\AppData\Local\Temp\portaudio_x64.dll

Download File

Process:	C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe
File Type:	PE32+ executable (DLL) (GUI) x86-64, for MS Windows
Category:	dropped
Size (bytes):	210400
Entropy (8bit):	6.556455859693611
Encrypted:	false
SSDEEP:	3072:eNDA0+ExUEe7nocc+HBmLhE8ErHTfxWEvoMhVGNDKE7tjHZYZdH:M+E6fE+ILa8yF3voMVGVKE4H
MD5:	B38B3ABD5349D92C63D450DF34C73D4C
SHA1:	F58BA8CC0D2E9A1F0D5DF7518BB9DE39D35E224E
SHA-256:	B52F564D867924895D80019267CF3E05F5D945755096ECEBCECB77599AE36B82
SHA-512:	D35820246E48D72C060A725F792FB61F0BA86D6F0B100EF45B0C960C14D4C8DE788BA061B29A05BC9312ED7977D3B8D593024457C9DA54239ABB40DCA9CDFDEE
Malicious:	false
Antivirus:	Antivirus: ReversingLabs, Detection: 0%
Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.............t...t...t.......t...u...t...q...t...p...t...w...t..p...t..u...t...u.s.t.>.p...t.>.t...t.>.....t.......t.>.v...t.Rich..t.........................PE..d....5`.........." .........N......H........................................P.......H....`.................................................P........0..h................!...@..........T...........................`................................................text............................... ..`.rdata..............................@..@.data...p...........................@....pdata..............................@..@.rsrc...h....0......................@..@.reloc.......@......................@..B........................................................................................................................................................................................................................

C:\Users\user\AppData\Local\Temp\vm3ddevapi64-release.dll

Download File

Process:	C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe
File Type:	PE32+ executable (DLL) (GUI) x86-64, for MS Windows
Category:	dropped
Size (bytes):	272968
Entropy (8bit):	6.525125544096022
Encrypted:	false
SSDEEP:	6144:yGDcBJz3nXgJhw/171Ewc6Jlih+GtOjrLbR8XtVbQ:yGDcnAJC/1pvJXJAtVbQ
MD5:	31DC360E537F919FC03540C17539E3C1
SHA1:	33ABED31822A0F8590079C8E20A1DC3EBA7EB334
SHA-256:	1C2BF2248AC56F213B4888FC756AE26ED3E61B7D5A16C1464E421CFBB3528B03
SHA-512:	2C1FFB5FE35AD53DF3149E31ABAA32F23DFA3DA920727FEBF39D19FD728408D1C00415E8F863B795EDF37645DD8FB8DE477F2EE4EDA38DCBCD15465A7A93EF20
Malicious:	false
Antivirus:	Antivirus: ReversingLabs, Detection: 0%
Preview:	MZ......................@...................................8...........!..L.!This program cannot be run in DOS mode....$.......[...............................s.....s.....s..........M...........z.....z.......................G.........Rich..........................PE..d......`.........." .........T..............................................@......PJ....`A...............................................t........ ..................Hb...0...... m..8............................k..8.......................@....................text.............................. ..`.rdata..2...........................@..@.data...0#..........................@....pdata..............................@..@.didat..H...........................@....gehcont$...........................@..@_RDATA..............................@..@.rsrc........ ......................@..@.reloc.......0......................@..B................................................................

Static File Info

General

File type:	PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive
Entropy (8bit):	7.6857232930420745
TrID:	Win32 Executable (generic) a (10002005/4) 99.96% Generic Win/DOS Executable (2004/3) 0.02% DOS Executable Generic (2002/1) 0.02% Autodesk FLIC Image File (extensions: flc, fli, cel) (7/3) 0.00%
File name:	SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe
File size:	603464
MD5:	c1863e820a135d468e9787f1f78970e2
SHA1:	e0846c1117045f4ee73a6493e2207d4f27056b9e
SHA256:	feb8a71e0b6bb912ce22c67275eba157fb10f626e18faeb5119789c7e89ecabd
SHA512:	6607743de9ca76c7d7f6a57f63b196892a510c30afccee0cef9132460eaabe145b418b9bb5c21fa48717e1353f1c91ed2fc8cc86ab42c8b64b3b80acaea92931
SSDEEP:	12288:RYCEkC0keucJfmGquXqvJStyHzPchra7PZLCyEcz1F:RYCBC04q1AUZGnXz3
TLSH:	59D4DFB2F7D48A4BFD02677895E192683DFB9CE16223E30B114D3D17BEB67693244182
File Content Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$........1...Pf..Pf..Pf._9..Pf..Pg.LPf._;..Pf..sV..Pf..V`..Pf.Rich.Pf.........................PE..L.....Oa.................h...*.....

File Icon


Icon Hash:	f0e8ce9e96cce802

Static PE Info

General

Entrypoint:	0x403640
Entrypoint Section:	.text
Digitally signed:	true
Imagebase:	0x400000
Subsystem:	windows gui
Image File Characteristics:	LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, RELOCS_STRIPPED
DLL Characteristics:	NO_SEH, TERMINAL_SERVER_AWARE, DYNAMIC_BASE, NX_COMPAT
Time Stamp:	0x614F9B1F [Sat Sep 25 21:56:47 2021 UTC]
TLS Callbacks:
CLR (.Net) Version:
OS Version Major:	4
OS Version Minor:	0
File Version Major:	4
File Version Minor:	0
Subsystem Version Major:	4
Subsystem Version Minor:	0
Import Hash:	61259b55b8912888e90f516ca08dc514

Authenticode Signature

Signature Valid:	false
Signature Issuer:	CN="maskindokumentation eringen draperer prisfald ", O=Fysioterapeutskolerne5, L=Saint-Maurice-prÃ¨s-Crocq, S=Nouvelle-Aquitaine, C=FR
Signature Validation Error:	A certificate chain processed, but terminated in a root certificate which is not trusted by the trust provider
Error Number:	-2146762487
Not Before, Not After	5/23/2022 3:56:10 AM 5/23/2023 3:56:10 AM
Subject Chain	CN="maskindokumentation eringen draperer prisfald ", O=Fysioterapeutskolerne5, L=Saint-Maurice-prÃ¨s-Crocq, S=Nouvelle-Aquitaine, C=FR
Version:	3
Thumbprint MD5:	7735A8EAAFDB10F20731055B3C25398B
Thumbprint SHA-1:	891C6FE7C7361A0AE542A7DAA25078799E3ADDF5
Thumbprint SHA-256:	44C99CC90CD9A321BC61E47D59498840554B9C58C770B7BCF0777E7BA2193C09
Serial:	6132FE7805280AAC

Entrypoint Preview

Instruction
push ebp
mov ebp, esp
sub esp, 000003F4h
push ebx
push esi
push edi
push 00000020h
pop edi
xor ebx, ebx
push 00008001h
mov dword ptr [ebp-14h], ebx
mov dword ptr [ebp-04h], 0040A230h
mov dword ptr [ebp-10h], ebx
call dword ptr [004080C8h]
mov esi, dword ptr [004080CCh]
lea eax, dword ptr [ebp-00000140h]
push eax
mov dword ptr [ebp-0000012Ch], ebx
mov dword ptr [ebp-2Ch], ebx
mov dword ptr [ebp-28h], ebx
mov dword ptr [ebp-00000140h], 0000011Ch
call esi
test eax, eax
jne 00007F3098FCC41Ah
lea eax, dword ptr [ebp-00000140h]
mov dword ptr [ebp-00000140h], 00000114h
push eax
call esi
mov ax, word ptr [ebp-0000012Ch]
mov ecx, dword ptr [ebp-00000112h]
sub ax, 00000053h
add ecx, FFFFFFD0h
neg ax
sbb eax, eax
mov byte ptr [ebp-26h], 00000004h
not eax
and eax, ecx
mov word ptr [ebp-2Ch], ax
cmp dword ptr [ebp-0000013Ch], 0Ah
jnc 00007F3098FCC3EAh
and word ptr [ebp-00000132h], 0000h
mov eax, dword ptr [ebp-00000134h]
movzx ecx, byte ptr [ebp-00000138h]
mov dword ptr [0042A318h], eax
xor eax, eax
mov ah, byte ptr [ebp-0000013Ch]
movzx eax, ax
or eax, ecx
xor ecx, ecx
mov ch, byte ptr [ebp-2Ch]
movzx ecx, cx
shl eax, 10h
or eax, ecx

Rich Headers

Programming Language:

[EXP] VC++ 6.0 SP5 build 8804

Data Directories

Name	Virtual Address	Virtual Size	Is in Section
IMAGE_DIRECTORY_ENTRY_EXPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IMPORT	0x8504	0xa0	.rdata
IMAGE_DIRECTORY_ENTRY_RESOURCE	0x62000	0x21848	.rsrc
IMAGE_DIRECTORY_ENTRY_EXCEPTION	0x0	0x0
IMAGE_DIRECTORY_ENTRY_SECURITY	0x91610	0x1f38
IMAGE_DIRECTORY_ENTRY_BASERELOC	0x0	0x0
IMAGE_DIRECTORY_ENTRY_DEBUG	0x0	0x0
IMAGE_DIRECTORY_ENTRY_COPYRIGHT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_GLOBALPTR	0x0	0x0
IMAGE_DIRECTORY_ENTRY_TLS	0x0	0x0
IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG	0x0	0x0
IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IAT	0x8000	0x2b0	.rdata
IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR	0x0	0x0
IMAGE_DIRECTORY_ENTRY_RESERVED	0x0	0x0

Sections

Name	Virtual Address	Virtual Size	Raw Size	Xored PE	ZLIB Complexity	File Type	Entropy	Characteristics
.text	0x1000	0x6676	0x6800	False	0.656813401442	data	6.41745998719	IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
.rdata	0x8000	0x139a	0x1400	False	0.4498046875	data	5.14106681717	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
.data	0xa000	0x20378	0x600	False	0.509765625	data	4.11058212765	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_WRITE, IMAGE_SCN_MEM_READ
.ndata	0x2b000	0x37000	0x0	False	0	empty	0.0	IMAGE_SCN_MEM_WRITE, IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_READ
.rsrc	0x62000	0x21848	0x21a00	False	0.418455216078	data	5.86806441388	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ

Resources

Name	RVA	Size	Type	Language	Country
RT_ICON	0x62328	0x10828	dBase IV DBT, blocks size 0, block length 2048, next free block index 40, next free block 16777216, next used block 16777216	English	United States
RT_ICON	0x72b50	0x7d38	PNG image data, 256 x 256, 8-bit/color RGBA, non-interlaced	English	United States
RT_ICON	0x7a888	0x4228	dBase IV DBT of \200.DBF, blocks size 0, block length 16896, next free block index 40, next free block 128, next used block 16777216	English	United States
RT_ICON	0x7eab0	0x25a8	data	English	United States
RT_ICON	0x81058	0x10a8	data	English	United States
RT_ICON	0x82100	0x988	data	English	United States
RT_ICON	0x82a88	0x468	GLS_BINARY_LSB_FIRST	English	United States
RT_DIALOG	0x82ef0	0x100	data	English	United States
RT_DIALOG	0x82ff0	0x11c	data	English	United States
RT_DIALOG	0x83110	0xc4	data	English	United States
RT_DIALOG	0x831d8	0x60	data	English	United States
RT_GROUP_ICON	0x83238	0x68	data	English	United States
RT_VERSION	0x832a0	0x264	data	English	United States
RT_MANIFEST	0x83508	0x33e	XML 1.0 document, ASCII text, with very long lines, with no line terminators	English	United States

Imports

DLL	Import
ADVAPI32.dll	RegCreateKeyExW, RegEnumKeyW, RegQueryValueExW, RegSetValueExW, RegCloseKey, RegDeleteValueW, RegDeleteKeyW, AdjustTokenPrivileges, LookupPrivilegeValueW, OpenProcessToken, SetFileSecurityW, RegOpenKeyExW, RegEnumValueW
SHELL32.dll	SHGetSpecialFolderLocation, SHFileOperationW, SHBrowseForFolderW, SHGetPathFromIDListW, ShellExecuteExW, SHGetFileInfoW
ole32.dll	OleInitialize, OleUninitialize, CoCreateInstance, IIDFromString, CoTaskMemFree
COMCTL32.dll	ImageList_Create, ImageList_Destroy, ImageList_AddMasked
USER32.dll	GetClientRect, EndPaint, DrawTextW, IsWindowEnabled, DispatchMessageW, wsprintfA, CharNextA, CharPrevW, MessageBoxIndirectW, GetDlgItemTextW, SetDlgItemTextW, GetSystemMetrics, FillRect, AppendMenuW, TrackPopupMenu, OpenClipboard, SetClipboardData, CloseClipboard, IsWindowVisible, CallWindowProcW, GetMessagePos, CheckDlgButton, LoadCursorW, SetCursor, GetSysColor, SetWindowPos, GetWindowLongW, PeekMessageW, SetClassLongW, GetSystemMenu, EnableMenuItem, GetWindowRect, ScreenToClient, EndDialog, RegisterClassW, SystemParametersInfoW, CreateWindowExW, GetClassInfoW, DialogBoxParamW, CharNextW, ExitWindowsEx, DestroyWindow, CreateDialogParamW, SetTimer, SetWindowTextW, PostQuitMessage, SetForegroundWindow, ShowWindow, wsprintfW, SendMessageTimeoutW, FindWindowExW, IsWindow, GetDlgItem, SetWindowLongW, LoadImageW, GetDC, ReleaseDC, EnableWindow, InvalidateRect, SendMessageW, DefWindowProcW, BeginPaint, EmptyClipboard, CreatePopupMenu
GDI32.dll	SetBkMode, SetBkColor, GetDeviceCaps, CreateFontIndirectW, CreateBrushIndirect, DeleteObject, SetTextColor, SelectObject
KERNEL32.dll	GetExitCodeProcess, WaitForSingleObject, GetModuleHandleA, GetProcAddress, GetSystemDirectoryW, lstrcatW, Sleep, lstrcpyA, WriteFile, GetTempFileNameW, lstrcmpiA, RemoveDirectoryW, CreateProcessW, CreateDirectoryW, GetLastError, CreateThread, GlobalLock, GlobalUnlock, GetDiskFreeSpaceW, WideCharToMultiByte, lstrcpynW, lstrlenW, SetErrorMode, GetVersionExW, GetCommandLineW, GetTempPathW, GetWindowsDirectoryW, SetEnvironmentVariableW, CopyFileW, ExitProcess, GetCurrentProcess, GetModuleFileNameW, GetFileSize, CreateFileW, GetTickCount, MulDiv, SetFileAttributesW, GetFileAttributesW, SetCurrentDirectoryW, MoveFileW, GetFullPathNameW, GetShortPathNameW, SearchPathW, CompareFileTime, SetFileTime, CloseHandle, lstrcmpiW, lstrcmpW, ExpandEnvironmentStringsW, GlobalFree, GlobalAlloc, GetModuleHandleW, LoadLibraryExW, MoveFileExW, FreeLibrary, WritePrivateProfileStringW, GetPrivateProfileStringW, lstrlenA, MultiByteToWideChar, ReadFile, SetFilePointer, FindClose, FindNextFileW, FindFirstFileW, DeleteFileW

Version Infos

Description	Data
LegalCopyright	MAALERES
FileVersion	18.16.25
CompanyName	Easterner
LegalTrademarks	KRONISKESSKLSKR
Comments	archeressbronz
ProductName	Suber
FileDescription	Sekstifem
Translation	0x0409 0x04b0

Possible Origin

Language of compilation system	Country where language is spoken	Map
English	United States

Target ID:	0
Start time:	18:48:06
Start date:	23/05/2022
Path:	C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe
Wow64 process (32bit):	true
Commandline:	"C:\Users\user\Desktop\SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.exe"
Imagebase:	0x400000
File size:	603464 bytes
MD5 hash:	C1863E820A135D468E9787F1F78970E2
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Yara matches:	Rule: JoeSecurity_GuLoader_2, Description: Yara detected GuLoader, Source: 00000000.00000002.545755937.00000000030B0000.00000040.00001000.00020000.00000000.sdmp, Author: Joe Security
Reputation:	low

Disassembly

⊘No disassembly

Description:	Adversaries may directly interact with the native OS application programming interface (API) to execute behaviors. Native APIs provide a controlled means of calling low-level OS services within the kernel, such as those involving hardware/devices, memory, and processes.These native APIs are leveraged by the OS during system boot (when other system components are not yet initialized) as well as carrying out tasks and requests during routine operations.
Tactics:	Execution
Data Sources:	API monitoring, Loaded DLLs, Process monitoring, System calls
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may modify access tokens to operate under a different user or system security context to perform actions and bypass access controls. Windows uses access tokens to determine the ownership of a running process. A user can manipulate access tokens to make a running process appear as though it is the child of a different process or belongs to someone other than the user that started the process. When this occurs, the process also takes on the security context associated with the new token.
Tactics:	Defense Evasion, Privilege Escalation
Data Sources:	API monitoring, Access tokens, Authentication logs, Process command-line parameters, Process monitoring, Windows event logs
Platforms:	Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may perform software packing or virtual machine software protection to conceal their code. Software packing is a method of compressing or encrypting an executable. Packing an executable changes the file signature in an attempt to avoid signature-based detection. Most decompression techniques decompress the executable code in memory. Virtual machine software protection translates an executable's original code into a special format that only a special virtual machine can run. A virtual machine is then called to run this code.
Tactics:	Defense Evasion
Data Sources:	Binary file metadata
Platforms:	macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to make an executable or file difficult to discover or analyze by encrypting, encoding, or otherwise obfuscating its contents on the system or in transit. This is common behavior that can be used across different platforms and the network to evade defenses.
Tactics:	Defense Evasion
Data Sources:	Binary file metadata, Email gateway, Environment variable, File monitoring, Malware reverse engineering, Network intrusion detection system, Network protocol analysis, Process command-line parameters, Process monitoring, Process use of network, SSL/TLS inspection, Windows event logs
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to get a listing of security software, configurations, defensive tools, and sensors that are installed on a system or in a cloud environment. This may include things such as firewall rules and anti-virus. Adversaries may use the information from Security Software Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	AWS CloudTrail logs, Azure activity logs, File monitoring, Process command-line parameters, Process monitoring, Stackdriver logs
Platforms:	AWS, Azure, Azure AD, GCP, Linux, macOS, Office 365, SaaS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may enumerate files and directories or may search in specific locations of a host or network share for certain information within a file system. Adversaries may use the information from File and Directory Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	File monitoring, Process command-line parameters, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	An adversary may attempt to get detailed information about the operating system and hardware, including version, patches, hotfixes, service packs, and architecture. Adversaries may use the information from System Information Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	AWS CloudTrail logs, Azure activity logs, Process command-line parameters, Process monitoring, Stackdriver logs
Platforms:	AWS, Azure, GCP, Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	An adversary may compress and/or encrypt data that is collected prior to exfiltration. Compressing the data can help to obfuscate the collected data and minimize the amount of data sent over the network. Encryption can be used to hide information that is being exfiltrated from detection or make exfiltration less conspicuous upon inspection by a defender.
Tactics:	Collection
Data Sources:	Binary file metadata, File monitoring, Process command-line parameters, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may collect data stored in the clipboard from users copying information within or between applications.
Tactics:	Collection
Data Sources:	API monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may employ a known encryption algorithm to conceal command and control traffic rather than relying on any inherent protections provided by a communication protocol. Despite the use of a secure algorithm, these implementations may be vulnerable to reverse engineering if secret keys are encoded and/or generated within malware samples/configuration files.
Tactics:	Command and Control
Data Sources:	Malware reverse engineering, Netflow/Enclave netflow, Packet capture, Process monitoring, Process use of network, SSL/TLS inspection
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may communicate using application layer protocols to avoid detection/network filtering by blending in with existing traffic. Commands to the remote system, and often the results of those commands, will be embedded within the protocol traffic between the client and server.
Tactics:	Command and Control
Data Sources:	DNS records, Netflow/Enclave netflow, Network protocol analysis, Packet capture, Process monitoring, Process use of network
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may shutdown/reboot systems to interrupt access to, or aid in the destruction of, those systems. Operating systems may contain commands to initiate a shutdown/reboot of a machine. In some cases, these commands may also be used to initiate a shutdown/reboot of a remote computer.Shutting down or rebooting systems may disrupt access to computer resources for legitimate users.
Tactics:	Impact
Data Sources:	Process command-line parameters, Process monitoring, Windows event logs
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

Loading Joe Sandbox Report ...

Warning!

Windows Analysis Report SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.6225

Overview

General Information

Detection

Signatures

Classification

Process Tree

Malware Configuration

Threatname: GuLoader

Yara Signatures

Memory Dumps

Sigma Signatures

Snort Signatures

Joe Sandbox Signatures

AV Detection

Compliance

Spreading

Networking

Key, Mouse, Clipboard, Microphone and Screen Capturing

System Summary

Data Obfuscation

Persistence and Installation Behavior

Hooking and other Techniques for Hiding and Protection

Malware Analysis System Evasion

Anti Debugging

Language, Device and Operating System Detection

Mitre Att&ck Matrix

Behavior Graph

Screenshots

Thumbnails

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Unpacked PE Files

Domains

URLs

Domains and IPs

Contacted Domains

URLs from Memory and Binaries

World Map of Contacted IPs

General Information

Warnings

Simulations

Behavior and APIs

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

C:\Users\user\AppData\Local\Temp\DiFxAPI.dll

C:\Users\user\AppData\Local\Temp\Forbudenes2.MON

C:\Users\user\AppData\Local\Temp\MEMORABLENESS.lnk

C:\Users\user\AppData\Local\Temp\Standardiserede7.sma

C:\Users\user\AppData\Local\Temp\document-open-recent-symbolic.svg

C:\Users\user\AppData\Local\Temp\nsl5F49.tmp\System.dll

C:\Users\user\AppData\Local\Temp\portaudio_x64.dll

C:\Users\user\AppData\Local\Temp\vm3ddevapi64-release.dll

Static File Info

General

File Icon

Static PE Info

General

Authenticode Signature

Entrypoint Preview

Rich Headers

Data Directories

Sections

Resources

Imports

Version Infos

Possible Origin

Windows Analysis Report
SecuriteInfo.com.UDS.Trojan-Downloader.Win32.GuLoader.gen.1305.6225