Windows Analysis Report
CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe

Overview

General Information

Sample Name: CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe
Analysis ID: 736949
MD5: 045f22ce9be3d33b07a00780ee66fcfd
SHA1: 91b74e75d55c33d8d82b10bed51ca7d3ad80147c
SHA256: e05ec32c2edc10b6917a3cbcac9d823cb37db908cc51f3ec459800992e2b8b37
Infos:

Detection

GuLoader
Score: 60
Range: 0 - 100
Whitelisted: false
Confidence: 100%

Signatures

Yara detected GuLoader
Initial sample is a PE file and has a suspicious name
Tries to detect virtualization through RDTSC time measurements
Executable has a suspicious name (potential lure to open the executable)
Uses 32bit PE files
Drops PE files
Contains functionality to shutdown / reboot the system
Detected potential crypto function
PE / OLE file has an invalid certificate
Contains functionality to dynamically determine API calls
Abnormal high CPU Usage
Contains functionality for read data from the clipboard

Classification

Uses 32bit PE files
Source: CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe Static PE information: RELOCS_STRIPPED, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, LOCAL_SYMS_STRIPPED, 32BIT_MACHINE
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe Registry value created: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall\Bestyrelsesformanden Jump to behavior
Source: CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe Static PE information: DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe Code function: 0_2_0040676F FindFirstFileW,FindClose, 0_2_0040676F
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe Code function: 0_2_00405B23 GetTempPathW,DeleteFileW,lstrcatW,lstrcatW,lstrlenW,FindFirstFileW,FindNextFileW,FindClose, 0_2_00405B23
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe Code function: 0_2_00402902 FindFirstFileW, 0_2_00402902
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe File opened: C:\Users\user\AppData\Roaming Jump to behavior
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe File opened: C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini Jump to behavior
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe File opened: C:\Users\user Jump to behavior
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe File opened: C:\Users\user\AppData\Roaming\Microsoft Jump to behavior
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe File opened: C:\Users\user\AppData Jump to behavior
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe File opened: C:\Users\user\AppData\Roaming\Microsoft\Windows Jump to behavior
Source: CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe String found in binary or memory: http://crl.globalsign.com/ca/gstsacasha384g4.crl0
Source: CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe String found in binary or memory: http://crl.globalsign.com/root-r3.crl0G
Source: CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe String found in binary or memory: http://crl.globalsign.com/root-r6.crl0G
Source: CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe String found in binary or memory: http://nsis.sf.net/NSIS_ErrorError
Source: CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe String found in binary or memory: http://ocsp.globalsign.com/ca/gstsacasha384g40C
Source: CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe String found in binary or memory: http://ocsp2.globalsign.com/rootr306
Source: CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe String found in binary or memory: http://ocsp2.globalsign.com/rootr606
Source: CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe String found in binary or memory: http://secure.globalsign.com/cacert/gstsacasha384g4.crt0
Source: CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe String found in binary or memory: https://www.globalsign.com/repository/0
Contains functionality for read data from the clipboard
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe Code function: 0_2_004055B8 GetDlgItem,GetDlgItem,GetDlgItem,GetDlgItem,GetClientRect,GetSystemMetrics,SendMessageW,SendMessageW,SendMessageW,SendMessageW,SendMessageW,SendMessageW,ShowWindow,ShowWindow,GetDlgItem,SendMessageW,SendMessageW,SendMessageW,GetDlgItem,CreateThread,CloseHandle,ShowWindow,ShowWindow,ShowWindow,ShowWindow,SendMessageW,CreatePopupMenu,AppendMenuW,GetWindowRect,TrackPopupMenu,SendMessageW,OpenClipboard,EmptyClipboard,GlobalAlloc,GlobalLock,SendMessageW,GlobalUnlock,SetClipboardData,CloseClipboard, 0_2_004055B8

System Summary
barindex
Initial sample is a PE file and has a suspicious name
Source: initial sample Static PE information: Filename: CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe
Executable has a suspicious name (potential lure to open the executable)
Source: CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe Static file information: Suspicious name
Uses 32bit PE files
Source: CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe Static PE information: RELOCS_STRIPPED, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, LOCAL_SYMS_STRIPPED, 32BIT_MACHINE
Contains functionality to shutdown / reboot the system
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe Code function: 0_2_004034C5 EntryPoint,SetErrorMode,GetVersion,lstrlenA,#17,OleInitialize,SHGetFileInfoW,GetCommandLineW,CharNextW,GetTempPathW,GetTempPathW,GetWindowsDirectoryW,lstrcatW,GetTempPathW,lstrcatW,SetEnvironmentVariableW,SetEnvironmentVariableW,SetEnvironmentVariableW,DeleteFileW,OleUninitialize,ExitProcess,lstrcatW,lstrcatW,lstrcatW,lstrcmpiW,SetCurrentDirectoryW,DeleteFileW,CopyFileW,CloseHandle,GetCurrentProcess,OpenProcessToken,LookupPrivilegeValueW,AdjustTokenPrivileges,ExitWindowsEx,ExitProcess, 0_2_004034C5
Detected potential crypto function
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe Code function: 0_2_00407458 0_2_00407458
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe Code function: 0_2_00406C81 0_2_00406C81
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe Code function: 0_2_739A1B5F 0_2_739A1B5F
PE / OLE file has an invalid certificate
Source: CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe Static PE information: invalid certificate
Abnormal high CPU Usage
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe Process Stats: CPU usage > 98%
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe File read: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe Jump to behavior
Source: CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe Static PE information: Section: .text IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers Jump to behavior
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f486a52-3cb1-48fd-8f50-b8dc300d9f9d}\InProcServer32 Jump to behavior
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe Code function: 0_2_004034C5 EntryPoint,SetErrorMode,GetVersion,lstrlenA,#17,OleInitialize,SHGetFileInfoW,GetCommandLineW,CharNextW,GetTempPathW,GetTempPathW,GetWindowsDirectoryW,lstrcatW,GetTempPathW,lstrcatW,SetEnvironmentVariableW,SetEnvironmentVariableW,SetEnvironmentVariableW,DeleteFileW,OleUninitialize,ExitProcess,lstrcatW,lstrcatW,lstrcatW,lstrcmpiW,SetCurrentDirectoryW,DeleteFileW,CopyFileW,CloseHandle,GetCurrentProcess,OpenProcessToken,LookupPrivilegeValueW,AdjustTokenPrivileges,ExitWindowsEx,ExitProcess, 0_2_004034C5
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe File created: C:\Users\user\AppData\Roaming\Shoved Jump to behavior
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe File created: C:\Users\user\AppData\Local\Temp\nsc73B.tmp Jump to behavior
Source: classification engine Classification label: mal60.troj.evad.winEXE@1/3@0/0
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe Code function: 0_2_004021A2 CoCreateInstance, 0_2_004021A2
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe File read: C:\Users\desktop.ini Jump to behavior
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe Code function: 0_2_00404858 GetDlgItem,SetWindowTextW,SHBrowseForFolderW,CoTaskMemFree,lstrcmpiW,lstrcatW,SetDlgItemTextW,GetDiskFreeSpaceW,MulDiv,SetDlgItemTextW, 0_2_00404858
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe Registry value created: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall\Bestyrelsesformanden Jump to behavior
Source: CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe Static PE information: DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE

Data Obfuscation
barindex
Yara detected GuLoader
Source: Yara match File source: 00000000.00000002.835753026.0000000002A70000.00000040.00000800.00020000.00000000.sdmp, type: MEMORY
Contains functionality to dynamically determine API calls
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe Code function: 0_2_739A1B5F GlobalAlloc,lstrcpyW,lstrcpyW,GlobalFree,GlobalFree,GlobalFree,GlobalFree,GlobalFree,GlobalFree,lstrcpyW,GetModuleHandleW,LoadLibraryW,GetProcAddress,lstrlenW, 0_2_739A1B5F
Drops PE files
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe File created: C:\Users\user\AppData\Local\Temp\nso5721.tmp\System.dll Jump to dropped file
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe Process information set: NOOPENFILEERRORBOX Jump to behavior

Malware Analysis System Evasion
barindex
Tries to detect virtualization through RDTSC time measurements
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe RDTSC instruction interceptor: First address: 0000000002A702EA second address: 0000000002A702EA instructions: 0x00000000 rdtsc 0x00000002 test cx, ax 0x00000005 test cx, cx 0x00000008 cmp ebx, ecx 0x0000000a jc 00007F4CDCB7714Fh 0x0000000c test al, bl 0x0000000e inc ebp 0x0000000f test ah, ah 0x00000011 inc ebx 0x00000012 clc 0x00000013 rdtsc
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe Code function: 0_2_0040676F FindFirstFileW,FindClose, 0_2_0040676F
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe Code function: 0_2_00405B23 GetTempPathW,DeleteFileW,lstrcatW,lstrcatW,lstrlenW,FindFirstFileW,FindNextFileW,FindClose, 0_2_00405B23
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe Code function: 0_2_00402902 FindFirstFileW, 0_2_00402902
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe API call chain: ExitProcess graph end node
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe API call chain: ExitProcess graph end node
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe File opened: C:\Users\user\AppData\Roaming Jump to behavior
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe File opened: C:\Users\user\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini Jump to behavior
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe File opened: C:\Users\user Jump to behavior
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe File opened: C:\Users\user\AppData\Roaming\Microsoft Jump to behavior
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe File opened: C:\Users\user\AppData Jump to behavior
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe File opened: C:\Users\user\AppData\Roaming\Microsoft\Windows Jump to behavior
Contains functionality to dynamically determine API calls
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe Code function: 0_2_739A1B5F GlobalAlloc,lstrcpyW,lstrcpyW,GlobalFree,GlobalFree,GlobalFree,GlobalFree,GlobalFree,GlobalFree,lstrcpyW,GetModuleHandleW,LoadLibraryW,GetProcAddress,lstrlenW, 0_2_739A1B5F
Source: C:\Users\user\Desktop\CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe Code function: 0_2_004034C5 EntryPoint,SetErrorMode,GetVersion,lstrlenA,#17,OleInitialize,SHGetFileInfoW,GetCommandLineW,CharNextW,GetTempPathW,GetTempPathW,GetWindowsDirectoryW,lstrcatW,GetTempPathW,lstrcatW,SetEnvironmentVariableW,SetEnvironmentVariableW,SetEnvironmentVariableW,DeleteFileW,OleUninitialize,ExitProcess,lstrcatW,lstrcatW,lstrcatW,lstrcmpiW,SetCurrentDirectoryW,DeleteFileW,CopyFileW,CloseHandle,GetCurrentProcess,OpenProcessToken,LookupPrivilegeValueW,AdjustTokenPrivileges,ExitWindowsEx,ExitProcess, 0_2_004034C5
windows-stand
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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
behaviorgraph top1 signatures2 2 Behavior Graph ID: 736949 Sample: CONTRACT_REVISED-SHIPMENT-D... Startdate: 03/11/2022 Architecture: WINDOWS Score: 60 11 Yara detected GuLoader 2->11 13 Executable has a suspicious name (potential lure to open the executable) 2->13 15 Initial sample is a PE file and has a suspicious name 2->15 5 CONTRACT_REVISED-SHIPMENT-DOCUMENTS_EXPORTS_REFERENCE-QT63637-02993900299348.exe 4 23 2->5         started        process3 file4 9 C:\Users\user\AppData\Local\...\System.dll, PE32 5->9 dropped 17 Tries to detect virtualization through RDTSC time measurements 5->17 signatures5
⊘No contacted IP infos