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Analysis Report 964309_Invoice_confirmation.exe

Overview

General Information

Sample Name:	964309_Invoice_confirmation.exe
Analysis ID:	337282
MD5:	84f07fb808c942462f3ab00c17782217
SHA1:	b9044a839436619055ce9350d75293a2b28bb194
SHA256:	02553b25344fd73b18ed90ab5fc8e9c11100734b429e90a0527cbc1aed79e6bd
Tags:	exeGuLoader
Most interesting Screenshot:

Detection

GuLoader

Score:	84
Range:	0 - 100
Whitelisted:	false
Confidence:	100%

Signatures

Multi AV Scanner detection for submitted file

Potential malicious icon found

Yara detected GuLoader

Executable has a suspicious name (potential lure to open the executable)

Initial sample is a PE file and has a suspicious name

Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)

Tries to detect virtualization through RDTSC time measurements

Yara detected VB6 Downloader Generic

Abnormal high CPU Usage

Contains functionality for execution timing, often used to detect debuggers

Contains functionality to query CPU information (cpuid)

Contains functionality to read the PEB

PE file contains strange resources

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

Uses 32bit PE files

Uses code obfuscation techniques (call, push, ret)

Classification

Startup

System is w10x64

964309_Invoice_confirmation.exe (PID: 3484 cmdline: 'C:\Users\user\Desktop\964309_Invoice_confirmation.exe' MD5: 84F07FB808C942462F3AB00C17782217)

cleanup

Malware Configuration

No configs have been found

Yara Overview

Memory Dumps

Source	Rule	Description	Author	Strings
Process Memory Space: 964309_Invoice_confirmation.exe PID: 3484	JoeSecurity_VB6DownloaderGeneric	Yara detected VB6 Downloader Generic	Joe Security
Process Memory Space: 964309_Invoice_confirmation.exe PID: 3484	JoeSecurity_GuLoader	Yara detected GuLoader	Joe Security

Sigma Overview

No Sigma rule has matched

Signature Overview

Click to jump to signature section

Show All Signature Results

AV Detection:

Multi AV Scanner detection for submitted file

Show sources

Source: 964309_Invoice_confirmation.exe

ReversingLabs: Detection: 13%

Source: 964309_Invoice_confirmation.exe

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

System Summary:

Potential malicious icon found

Show sources

Source: initial sample

Icon embedded in PE file: bad icon match: 20047c7c70f0e004

Executable has a suspicious name (potential lure to open the executable)

Show sources

Source: 964309_Invoice_confirmation.exe

Static file information: Suspicious name

Initial sample is a PE file and has a suspicious name

Show sources

Source: initial sample

Static PE information: Filename: 964309_Invoice_confirmation.exe

Source: C:\Users\user\Desktop\964309_Invoice_confirmation.exe

Process Stats: CPU usage > 98%

Source: 964309_Invoice_confirmation.exe

Static PE information: Resource name: RT_ICON type: GLS_BINARY_LSB_FIRST

Source: 964309_Invoice_confirmation.exe, 00000001.00000000.673641824.0000000000417000.00000002.00020000.sdmp	Binary or memory string: OriginalFilenameBrneko.exe vs 964309_Invoice_confirmation.exe
Source: 964309_Invoice_confirmation.exe, 00000001.00000002.1843983752.00000000021D0000.00000002.00000001.sdmp	Binary or memory string: OriginalFilenameuser32j% vs 964309_Invoice_confirmation.exe
Source: 964309_Invoice_confirmation.exe	Binary or memory string: OriginalFilenameBrneko.exe vs 964309_Invoice_confirmation.exe

Source: 964309_Invoice_confirmation.exe

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

Source: classification engine

Classification label: mal84.rans.troj.evad.winEXE@1/0@0/0

Source: 964309_Invoice_confirmation.exe

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

Source: C:\Users\user\Desktop\964309_Invoice_confirmation.exe

Section loaded: C:\Windows\SysWOW64\msvbvm60.dll

Jump to behavior

Source: C:\Users\user\Desktop\964309_Invoice_confirmation.exe

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

Jump to behavior

Source: 964309_Invoice_confirmation.exe

ReversingLabs: Detection: 13%

Data Obfuscation:

Yara detected GuLoader

Show sources

Source: Yara match

File source: Process Memory Space: 964309_Invoice_confirmation.exe PID: 3484, type: MEMORY

Yara detected VB6 Downloader Generic

Show sources

Source: Yara match

File source: Process Memory Space: 964309_Invoice_confirmation.exe PID: 3484, type: MEMORY

Source: C:\Users\user\Desktop\964309_Invoice_confirmation.exe	Code function: 1_2_00402420 push esi; iretd	1_2_0040243E
Source: C:\Users\user\Desktop\964309_Invoice_confirmation.exe	Code function: 1_2_004078C7 push cs; retf	1_2_004078DE
Source: C:\Users\user\Desktop\964309_Invoice_confirmation.exe	Code function: 1_2_00407544 push edi; retf	1_2_0040756A
Source: C:\Users\user\Desktop\964309_Invoice_confirmation.exe	Code function: 1_2_00401657 push esi; iretd	1_2_00401663
Source: C:\Users\user\Desktop\964309_Invoice_confirmation.exe	Code function: 1_2_00408B03 push ds; retf	1_2_00408B0E
Source: C:\Users\user\Desktop\964309_Invoice_confirmation.exe	Code function: 1_2_00404BD9 push esp; retf	1_2_00404BDA
Source: C:\Users\user\Desktop\964309_Invoice_confirmation.exe	Code function: 1_2_004077B8 push ss; iretd	1_2_004077F1
Source: C:\Users\user\Desktop\964309_Invoice_confirmation.exe	Code function: 1_2_00425892 push 61000010h; ret	1_2_0042589F

Source: C:\Users\user\Desktop\964309_Invoice_confirmation.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\964309_Invoice_confirmation.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\964309_Invoice_confirmation.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\964309_Invoice_confirmation.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\964309_Invoice_confirmation.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior

Malware Analysis System Evasion:

Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)

Show sources

Source: 964309_Invoice_confirmation.exe

Binary or memory string: C:\PROGRAM FILES\QEMU-GA\QEMU-GA.EXE

Tries to detect virtualization through RDTSC time measurements

Show sources

Source: C:\Users\user\Desktop\964309_Invoice_confirmation.exe

RDTSC instruction interceptor: First address: 000000000040433B second address: 000000000040433B instructions: 0x00000000 rdtsc 0x00000002 wait 0x00000003 nop 0x00000004 dec esi 0x00000005 nop 0x00000006 nop 0x00000007 cmp esi, 00000000h 0x0000000a jne 00007F3DA0B9EEE6h 0x0000000c rdtsc

Source: C:\Users\user\Desktop\964309_Invoice_confirmation.exe

Code function: 1_2_004041EB rdtsc

1_2_004041EB

Source: 964309_Invoice_confirmation.exe

Binary or memory string: C:\Program Files\Qemu-ga\qemu-ga.exe

Source: C:\Users\user\Desktop\964309_Invoice_confirmation.exe

Code function: 1_2_004041EB rdtsc

1_2_004041EB

Source: C:\Users\user\Desktop\964309_Invoice_confirmation.exe	Code function: 1_2_0042505B mov eax, dword ptr fs:[00000030h]	1_2_0042505B
Source: C:\Users\user\Desktop\964309_Invoice_confirmation.exe	Code function: 1_2_00425A51 mov eax, dword ptr fs:[00000030h]	1_2_00425A51
Source: C:\Users\user\Desktop\964309_Invoice_confirmation.exe	Code function: 1_2_00425A6A mov eax, dword ptr fs:[00000030h]	1_2_00425A6A
Source: C:\Users\user\Desktop\964309_Invoice_confirmation.exe	Code function: 1_2_00424A0A mov eax, dword ptr fs:[00000030h]	1_2_00424A0A
Source: C:\Users\user\Desktop\964309_Invoice_confirmation.exe	Code function: 1_2_00425A33 mov eax, dword ptr fs:[00000030h]	1_2_00425A33
Source: C:\Users\user\Desktop\964309_Invoice_confirmation.exe	Code function: 1_2_00425A39 mov eax, dword ptr fs:[00000030h]	1_2_00425A39
Source: C:\Users\user\Desktop\964309_Invoice_confirmation.exe	Code function: 1_2_00425AA5 mov eax, dword ptr fs:[00000030h]	1_2_00425AA5
Source: C:\Users\user\Desktop\964309_Invoice_confirmation.exe	Code function: 1_2_00422EEF mov eax, dword ptr fs:[00000030h]	1_2_00422EEF

Source: 964309_Invoice_confirmation.exe, 00000001.00000002.1843804110.0000000000DA0000.00000002.00000001.sdmp	Binary or memory string: Program Manager
Source: 964309_Invoice_confirmation.exe, 00000001.00000002.1843804110.0000000000DA0000.00000002.00000001.sdmp	Binary or memory string: Shell_TrayWnd
Source: 964309_Invoice_confirmation.exe, 00000001.00000002.1843804110.0000000000DA0000.00000002.00000001.sdmp	Binary or memory string: Progman
Source: 964309_Invoice_confirmation.exe, 00000001.00000002.1843804110.0000000000DA0000.00000002.00000001.sdmp	Binary or memory string: Progmanlock

Source: C:\Users\user\Desktop\964309_Invoice_confirmation.exe

Code function: 1_2_0042375C cpuid

1_2_0042375C

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	Windows Management Instrumentation	Path Interception	Process Injection1	Process Injection1	OS Credential Dumping	Security Software Discovery211	Remote Services	Data from Local System	Exfiltration Over Other Network Medium	Data Obfuscation	Eavesdrop on Insecure Network Communication	Remotely Track Device Without Authorization	Modify System Partition
Default Accounts	Scheduled Task/Job	Boot or Logon Initialization Scripts	Boot or Logon Initialization Scripts	Obfuscated Files or Information1	LSASS Memory	Process Discovery1	Remote Desktop Protocol	Data from Removable Media	Exfiltration Over Bluetooth	Junk Data	Exploit SS7 to Redirect Phone Calls/SMS	Remotely Wipe Data Without Authorization	Device Lockout
Domain Accounts	At (Linux)	Logon Script (Windows)	Logon Script (Windows)	Obfuscated Files or Information	Security Account Manager	System Information Discovery111	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

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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

Screenshots

Thumbnails

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Behavior Section

Behavior Chronological

Disassembly

Uncategorized

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Analysis Report 964309_Invoice_confirmation.exe

Overview

General Information

Detection

Signatures

Classification

Startup

Malware Configuration

Yara Overview

Memory Dumps

Sigma Overview

Signature Overview

AV Detection:

Compliance:

System Summary:

Data Obfuscation:

Hooking and other Techniques for Hiding and Protection:

Malware Analysis System Evasion:

Anti Debugging:

HIPS / PFW / Operating System Protection Evasion:

Language, Device and Operating System Detection:

Mitre Att&ck Matrix

Behavior Graph

Screenshots

Thumbnails