Analysis
- max time kernel
150s - max time network
132s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
18/10/2026, 16:03
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
jaffacakes118_Worm.Win32.Vobfus.erym.exe
Resource
win10v2004-20260911-en
windows10-2004-x64
10 signatures
150 seconds
Behavioral task
behavioral2
Sample
jaffacakes118_Worm.Win32.Vobfus.erym.exe
Resource
win11ltsc2024-20260911-en
windows11-ltsc_2024-x64
9 signatures
150 seconds
General
- Target jaffacakes118_Worm.Win32.Vobfus.erym.exe
- Size 148KB
- Sample261018-thbmvsbf85
- SHA256 51fe6b151c1300a7bcfb1731e8f8784d661db751315086d4cd830dacfb026ba2
- MD5 39c5f9331b90cf81beed60feb67fa990
- SHA1 0d8ad5d59e784bcddb8467babc50b1a76c5397c8
- SHA512 a0de9945fe99da43fa4ee6a8cb35e66c3c32a988883d49ad8d9718bf8a668c0c6c9a5082e892c847b42be85876c942cd5fb7467197e8c2185b025c0a6ae4d2f4
- SSDEEP 3072:8iF8Qh4mRpDGq7At/yRWr2wA3pnbMUq8hFOdhIU4oQZiE9W4:LF3h96F90Wf4nJPwdjW1
- TLSH T12EE3C32A7291F27AD415CAF83D1982E09479EC3221D2AC07F7C16B1B76B1D9BD320763
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
Malware Config
Signatures
- Modifies visibility of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" wuupoum.exe Set value (int) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" jaffacakes118_Worm.Win32.Vobfus.erym.exe - Executes dropped EXE 1 IoCs
pid Process 2664 wuupoum.exe - Adds Run key to start application 2 TTPs 52 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /H" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /y" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /c" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /r" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /i" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /Y" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /n" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /o" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /E" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /A" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /H" jaffacakes118_Worm.Win32.Vobfus.erym.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /f" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /u" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /k" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /m" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /p" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /a" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /K" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /W" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /b" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /P" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /O" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /w" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /U" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /Z" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /M" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /L" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /g" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /N" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /j" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /x" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /R" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /X" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /Q" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /J" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /q" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /d" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /T" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /I" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /s" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /V" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /D" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /B" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /e" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /v" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /S" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /l" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /G" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /t" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /h" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /z" wuupoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\wuupoum = "C:\\Users\\Admin\\wuupoum.exe /F" wuupoum.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname jaffacakes118_Worm.Win32.Vobfus.erym.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain jaffacakes118_Worm.Win32.Vobfus.erym.exe - System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language jaffacakes118_Worm.Win32.Vobfus.erym.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language wuupoum.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 5820 jaffacakes118_Worm.Win32.Vobfus.erym.exe 5820 jaffacakes118_Worm.Win32.Vobfus.erym.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe 2664 wuupoum.exe - Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 5820 jaffacakes118_Worm.Win32.Vobfus.erym.exe 2664 wuupoum.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 5820 wrote to memory of 2664 5820 jaffacakes118_Worm.Win32.Vobfus.erym.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Worm.Win32.Vobfus.erym.exe"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Worm.Win32.Vobfus.erym.exe"1⤵
- Modifies visibility of hidden/system files in Explorer
- Adds Run key to start application
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5820 -
C:\Users\Admin\wuupoum.exe"C:\Users\Admin\wuupoum.exe"2⤵
- Modifies visibility of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:2664
-
Network
MITRE ATT&CK Enterprise v16
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Hide Artifacts
1Hidden Files and Directories
1Modify Registry
2Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\wuupoum.exe
- Size 148KB
- SHA256 46c7efc87783b6db0ce8b3dd68e658507654068d4ca41e2559fcce9f17ad6097
- MD5 b09b475bfb28e9adfb240acf35ba08c7
- SHA1 e3f906d953fad2d247e219b37a15151e3bad23e4
- SHA512 42dcde3891ca3e2fb0748a79c7114c6141a331aa8241818686f23e9b9df474764288a1d9bb23e321a8f6466ef2de4916d699a3e7672c30b39acdcdf52021d35c
- SSDEEP 3072:8iF1Qh4mRpDGq7At/yRWr2wA3pnbMUq8hFOdhIU4oQZiEHTsA:LFOh96F90Wf4nJPwdjWN
- TLSH T18FE3C42A7291F27AD415CAF43D1982E09479EC3225D2AC07F7C26B1B76B1D9BD320763
- MD5 SHA1 SHA512 SSDEEP TLSH