Windows Analysis Report
eXiJWkp8OE.exe

Overview

General Information

Sample name: eXiJWkp8OE.exe
renamed because original name is a hash value
Original sample name: ad98db4c044bc51bd2d6b0df5050291dc589135794f798dbafdf720ac64112e2.exe
Analysis ID: 1466879
MD5: 1209391dff4079c9c796efb0af814c08
SHA1: 695a11f6ba7fcae6e61f9eafa908c3cb4a6cd152
SHA256: ad98db4c044bc51bd2d6b0df5050291dc589135794f798dbafdf720ac64112e2
Tags: exe
Infos:

Detection

GuLoader
Score: 80
Range: 0 - 100
Whitelisted: false
Confidence: 100%

Signatures

Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Yara detected GuLoader
AI detected suspicious sample
Machine Learning detection for sample
Switches to a custom stack to bypass stack traces
Tries to detect virtualization through RDTSC time measurements
Abnormal high CPU Usage
Contains functionality for execution timing, often used to detect debuggers
Contains functionality for read data from the clipboard
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Contains functionality to call native functions
Contains functionality to dynamically determine API calls
Contains functionality to shutdown / reboot the system
Creates files inside the system directory
Detected potential crypto function
Drops PE files
Found dropped PE file which has not been started or loaded
PE / OLE file has an invalid certificate
Sample file is different than original file name gathered from version info
Uses 32bit PE files
Uses code obfuscation techniques (call, push, ret)

Classification

Name Description Attribution Blogpost URLs Link
CloudEyE, GuLoader CloudEyE (initially named GuLoader) is a small VB5/6 downloader. It typically downloads RATs/Stealers, such as Agent Tesla, Arkei/Vidar, Formbook, Lokibot, Netwire and Remcos, often but not always from Google Drive. The downloaded payload is xored. No Attribution https://malpedia.caad.fkie.fraunhofer.de/details/win.cloudeye

AV Detection
barindex
Antivirus / Scanner detection for submitted sample
Source: eXiJWkp8OE.exe Avira: detected
Multi AV Scanner detection for submitted file
Source: eXiJWkp8OE.exe ReversingLabs: Detection: 52%
AI detected suspicious sample
Source: Submited Sample Integrated Neural Analysis Model: Matched 99.9% probability
Machine Learning detection for sample
Source: eXiJWkp8OE.exe Joe Sandbox ML: detected
Uses 32bit PE files
Source: eXiJWkp8OE.exe Static PE information: RELOCS_STRIPPED, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, LOCAL_SYMS_STRIPPED, 32BIT_MACHINE
Source: eXiJWkp8OE.exe Static PE information: DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Code function: 0_2_0040596F CloseHandle,GetTempPathW,DeleteFileW,lstrcatW,lstrcatW,lstrlenW,FindFirstFileW,FindNextFileW,FindClose, 0_2_0040596F
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Code function: 0_2_004064C1 FindFirstFileW,FindClose, 0_2_004064C1
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Code function: 0_2_004027FB FindFirstFileW, 0_2_004027FB
Source: eXiJWkp8OE.exe String found in binary or memory: http://nsis.sf.net/NSIS_ErrorError
Source: eXiJWkp8OE.exe String found in binary or memory: http://s.symcb.com/universal-root.crl0
Source: eXiJWkp8OE.exe String found in binary or memory: http://s.symcd.com06
Source: eXiJWkp8OE.exe String found in binary or memory: http://ts-aia.ws.symantec.com/sha256-tss-ca.cer0(
Source: eXiJWkp8OE.exe String found in binary or memory: http://ts-crl.ws.symantec.com/sha256-tss-ca.crl0
Source: eXiJWkp8OE.exe String found in binary or memory: http://ts-ocsp.ws.symantec.com0;
Source: eXiJWkp8OE.exe String found in binary or memory: https://d.symcb.com/cps0%
Source: eXiJWkp8OE.exe String found in binary or memory: https://d.symcb.com/rpa0
Source: eXiJWkp8OE.exe String found in binary or memory: https://d.symcb.com/rpa0.
Contains functionality for read data from the clipboard
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Code function: 0_2_0040541C 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,LdrInitializeThunk,SendMessageW,CreatePopupMenu,LdrInitializeThunk,AppendMenuW,GetWindowRect,TrackPopupMenu,SendMessageW,OpenClipboard,EmptyClipboard,GlobalAlloc,GlobalLock,SendMessageW,GlobalUnlock,SetClipboardData,CloseClipboard, 0_2_0040541C
Abnormal high CPU Usage
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Process Stats: CPU usage > 49%
Contains functionality to call native functions
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Code function: 0_2_05128D05 NtAllocateVirtualMemory, 0_2_05128D05
Contains functionality to shutdown / reboot the system
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Code function: 0_2_004033B6 EntryPoint,SetErrorMode,GetVersion,lstrlenA,#17,OleInitialize,SHGetFileInfoW,GetCommandLineW,GetModuleHandleW,CharNextW,GetTempPathW,GetTempPathW,GetWindowsDirectoryW,lstrcatW,GetTempPathW,lstrcatW,SetEnvironmentVariableW,SetEnvironmentVariableW,SetEnvironmentVariableW,DeleteFileW,OleUninitialize,ExitProcess,lstrcatW,lstrcatW,lstrcatW,lstrcmpiW,SetCurrentDirectoryW,DeleteFileW,LdrInitializeThunk,CopyFileW,CloseHandle,GetCurrentProcess,OpenProcessToken,LookupPrivilegeValueW,AdjustTokenPrivileges,ExitWindowsEx,ExitProcess, 0_2_004033B6
Creates files inside the system directory
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe File created: C:\Windows\resources\0809 Jump to behavior
Detected potential crypto function
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Code function: 0_2_00406846 0_2_00406846
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Code function: 0_2_00404C59 0_2_00404C59
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Code function: 0_2_050E0C72 0_2_050E0C72
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Code function: 0_2_050EE613 0_2_050EE613
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Code function: 0_2_05128F25 0_2_05128F25
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Code function: 0_2_05125940 0_2_05125940
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Code function: 0_2_051256B5 0_2_051256B5
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Code function: 0_2_050E0BE8 0_2_050E0BE8
PE / OLE file has an invalid certificate
Source: eXiJWkp8OE.exe Static PE information: invalid certificate
Sample file is different than original file name gathered from version info
Source: eXiJWkp8OE.exe, 00000000.00000000.1704518392.0000000000455000.00000002.00000001.01000000.00000003.sdmp Binary or memory string: OriginalFilenameinanity.exe4 vs eXiJWkp8OE.exe
Source: eXiJWkp8OE.exe Binary or memory string: OriginalFilenameinanity.exe4 vs eXiJWkp8OE.exe
Uses 32bit PE files
Source: eXiJWkp8OE.exe Static PE information: RELOCS_STRIPPED, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, LOCAL_SYMS_STRIPPED, 32BIT_MACHINE
Source: classification engine Classification label: mal80.troj.evad.winEXE@1/10@0/0
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Code function: 0_2_004033B6 EntryPoint,SetErrorMode,GetVersion,lstrlenA,#17,OleInitialize,SHGetFileInfoW,GetCommandLineW,GetModuleHandleW,CharNextW,GetTempPathW,GetTempPathW,GetWindowsDirectoryW,lstrcatW,GetTempPathW,lstrcatW,SetEnvironmentVariableW,SetEnvironmentVariableW,SetEnvironmentVariableW,DeleteFileW,OleUninitialize,ExitProcess,lstrcatW,lstrcatW,lstrcatW,lstrcmpiW,SetCurrentDirectoryW,DeleteFileW,LdrInitializeThunk,CopyFileW,CloseHandle,GetCurrentProcess,OpenProcessToken,LookupPrivilegeValueW,AdjustTokenPrivileges,ExitWindowsEx,ExitProcess, 0_2_004033B6
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Code function: 0_2_004046DD GetDlgItem,SetWindowTextW,LdrInitializeThunk,LdrInitializeThunk,SHBrowseForFolderW,CoTaskMemFree,lstrcmpiW,lstrcatW,SetDlgItemTextW,LdrInitializeThunk,GetDiskFreeSpaceW,MulDiv,SetDlgItemTextW, 0_2_004046DD
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Code function: 0_2_00402095 LdrInitializeThunk,CoCreateInstance,LdrInitializeThunk, 0_2_00402095
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe File created: C:\Users\user\tndingers Jump to behavior
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe File created: C:\Users\user\AppData\Local\Temp\nsv6735.tmp Jump to behavior
Source: eXiJWkp8OE.exe Static PE information: Section: .text IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe File read: C:\Users\desktop.ini Jump to behavior
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers Jump to behavior
Source: eXiJWkp8OE.exe ReversingLabs: Detection: 52%
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe File read: C:\Users\user\Desktop\eXiJWkp8OE.exe Jump to behavior
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Section loaded: uxtheme.dll Jump to behavior
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Section loaded: userenv.dll Jump to behavior
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Section loaded: apphelp.dll Jump to behavior
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Section loaded: propsys.dll Jump to behavior
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Section loaded: dwmapi.dll Jump to behavior
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Section loaded: cryptbase.dll Jump to behavior
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Section loaded: oleacc.dll Jump to behavior
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Section loaded: version.dll Jump to behavior
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Section loaded: shfolder.dll Jump to behavior
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Section loaded: kernel.appcore.dll Jump to behavior
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Section loaded: windows.storage.dll Jump to behavior
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Section loaded: wldp.dll Jump to behavior
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Section loaded: profapi.dll Jump to behavior
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Section loaded: riched20.dll Jump to behavior
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Section loaded: usp10.dll Jump to behavior
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Section loaded: msls31.dll Jump to behavior
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Section loaded: textinputframework.dll Jump to behavior
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Section loaded: coreuicomponents.dll Jump to behavior
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Section loaded: coremessaging.dll Jump to behavior
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Section loaded: ntmarta.dll Jump to behavior
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Section loaded: wintypes.dll Jump to behavior
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Section loaded: wintypes.dll Jump to behavior
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Section loaded: wintypes.dll Jump to behavior
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Section loaded: textshaping.dll Jump to behavior
Source: C:\Users\user\Desktop\eXiJWkp8OE.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\eXiJWkp8OE.exe File written: C:\Users\user\Forbydende173.ini Jump to behavior
Source: eXiJWkp8OE.exe Static PE information: DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE

Data Obfuscation
barindex
Yara detected GuLoader
Source: Yara match File source: 00000000.00000002.4161831024.0000000004BBF000.00000040.00001000.00020000.00000000.sdmp, type: MEMORY
Contains functionality to dynamically determine API calls
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Code function: 0_2_10001B18 GlobalAlloc,lstrcpyW,lstrcpyW,GlobalFree,GlobalFree,GlobalFree,GlobalFree,GlobalFree,GlobalFree,lstrcpyW,GetModuleHandleW,LoadLibraryW,GetProcAddress,lstrlenW, 0_2_10001B18
Uses code obfuscation techniques (call, push, ret)
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Code function: 0_2_10002DE0 push eax; ret 0_2_10002E0E
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Code function: 0_2_04BBFB98 push ds; retf 0_2_04BBFB9C
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Code function: 0_2_04BC2B98 push ds; retf 0_2_04BC2B9C
Drops PE files
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe File created: C:\Users\user\AppData\Local\Temp\nsr69D8.tmp\System.dll Jump to dropped file
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Process information set: NOOPENFILEERRORBOX Jump to behavior

Malware Analysis System Evasion
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Switches to a custom stack to bypass stack traces
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe API/Special instruction interceptor: Address: 51283F1
Tries to detect virtualization through RDTSC time measurements
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe RDTSC instruction interceptor: First address: 50E0BD2 second address: 50E0BD2 instructions: 0x00000000 rdtsc 0x00000002 test ebx, eax 0x00000004 cmp ebx, ecx 0x00000006 jc 00007F1880B3DBA1h 0x00000008 cmp ax, cx 0x0000000b cmp edx, eax 0x0000000d inc ebp 0x0000000e inc ebx 0x0000000f cmp ch, dh 0x00000011 rdtsc
Contains functionality for execution timing, often used to detect debuggers
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Code function: 0_2_050E0A86 rdtsc 0_2_050E0A86
Found dropped PE file which has not been started or loaded
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Dropped PE file which has not been started: C:\Users\user\AppData\Local\Temp\nsr69D8.tmp\System.dll Jump to dropped file
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Code function: 0_2_0040596F CloseHandle,GetTempPathW,DeleteFileW,lstrcatW,lstrcatW,lstrlenW,FindFirstFileW,FindNextFileW,FindClose, 0_2_0040596F
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Code function: 0_2_004064C1 FindFirstFileW,FindClose, 0_2_004064C1
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Code function: 0_2_004027FB FindFirstFileW, 0_2_004027FB
Source: eXiJWkp8OE.exe, 00000000.00000002.4161118192.00000000006F8000.00000004.00000020.00020000.00000000.sdmp Binary or memory string: \\?\SCSI#CdRom&Ven_NECVMWar&Prod_VMware_SATA_CD00#4&224f42ef&0&000000#{53f5630d-b6bf-11d0-94f2-00a0c91efb8b}\\\?\Volume{a33c736e-61ca-11ee-8c18-806e6f6e6963}\aP~}
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe API call chain: ExitProcess graph end node
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe API call chain: ExitProcess graph end node
Contains functionality for execution timing, often used to detect debuggers
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Code function: 0_2_050E0A86 rdtsc 0_2_050E0A86
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Code function: 0_2_00402E41 GetTempPathW,GetTickCount,GetModuleFileNameW,GetFileSize,LdrInitializeThunk,GlobalAlloc,CreateFileW,LdrInitializeThunk, 0_2_00402E41
Contains functionality to dynamically determine API calls
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Code function: 0_2_10001B18 GlobalAlloc,lstrcpyW,lstrcpyW,GlobalFree,GlobalFree,GlobalFree,GlobalFree,GlobalFree,GlobalFree,lstrcpyW,GetModuleHandleW,LoadLibraryW,GetProcAddress,lstrlenW, 0_2_10001B18
Source: C:\Users\user\Desktop\eXiJWkp8OE.exe Code function: 0_2_004061A0 GetVersion,GetSystemDirectoryW,GetWindowsDirectoryW,SHGetSpecialFolderLocation,SHGetPathFromIDListW,CoTaskMemFree,lstrcatW,lstrlenW, 0_2_004061A0
windows-stand
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  • Signature
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  • DNS/IP Info
  • Is Dropped
  • Is Windows Process
  • Number of created Registry Values
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  • Visual Basic
  • Delphi
  • Java
  • .Net C# or VB.NET
  • C, C++ or other language
  • Is malicious
  • Internet
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1466879 Sample: eXiJWkp8OE.exe Startdate: 03/07/2024 Architecture: WINDOWS Score: 80 11 Antivirus / Scanner detection for submitted sample 2->11 13 Multi AV Scanner detection for submitted file 2->13 15 Yara detected GuLoader 2->15 17 2 other signatures 2->17 5 eXiJWkp8OE.exe 1 36 2->5         started        process3 file4 9 C:\Users\user\AppData\Local\...\System.dll, PE32 5->9 dropped 19 Tries to detect virtualization through RDTSC time measurements 5->19 21 Switches to a custom stack to bypass stack traces 5->21 signatures5
⊘No contacted IP infos