Analysis
- max time kernel
150s - max time network
125s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
14/10/2026, 13:17
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
- Sample261014-qjejcsvzew
- SHA256 b5578244c6d58e5c54911f4ab9f7b9822f37dfccc6883e8d735f67322bac3bfb
- MD5 f73590198b855ee439e421e0b894e4f9
- SHA1 139a84a2ce8347739b3b216f35996488cd735126
- SHA512 2ea4866516f1f2b1079c9d71399a8c8996336dd050a819928a0f08677f801f6e461bdaa470de48102ac832c648f070222ac64f94840ed6b62582be16aa491574
- SSDEEP 3072:8iFyQh4mRpDGq7At/yRWr2wA3pnbMUq8hFOdhIU4oQZiEcA:LFth96F90Wf4nJPwdjWN
- TLSH T1AFE3C42A7291F27AD414CAF83D1982E09479EC3621D2AC17F7C16B1B76B1D9BD320763
- 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-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" jaffacakes118_Worm.Win32.Vobfus.erym.exe Set value (int) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" mooopa.exe - Executes dropped EXE 1 IoCs
pid Process 2420 mooopa.exe - Adds Run key to start application 2 TTPs 51 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /Y" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /P" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /S" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /b" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /h" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /B" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /W" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /m" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /A" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /p" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /H" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /k" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /n" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /M" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /e" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /u" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /E" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /a" jaffacakes118_Worm.Win32.Vobfus.erym.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /O" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /C" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /Q" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /l" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /L" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /x" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /t" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /V" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /X" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /K" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /s" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /w" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /r" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /i" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /Z" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /F" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /a" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /z" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /f" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /y" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /D" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /g" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /v" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /q" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /c" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /o" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /j" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /d" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /T" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /G" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /J" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /R" mooopa.exe Set value (str) \REGISTRY\USER\S-1-5-21-1704430598-3087477806-3297458608-1000\Software\Microsoft\Windows\CurrentVersion\Run\mooopa = "C:\\Users\\Admin\\mooopa.exe /N" mooopa.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 mooopa.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language jaffacakes118_Worm.Win32.Vobfus.erym.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 5088 jaffacakes118_Worm.Win32.Vobfus.erym.exe 5088 jaffacakes118_Worm.Win32.Vobfus.erym.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe 2420 mooopa.exe - Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 5088 jaffacakes118_Worm.Win32.Vobfus.erym.exe 2420 mooopa.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 5088 wrote to memory of 2420 5088 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:5088 -
C:\Users\Admin\mooopa.exe"C:\Users\Admin\mooopa.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:2420
-
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\mooopa.exe
- Size 148KB
- SHA256 77de283c5a141255ee90d770ca23ce23062eeaedbe9522a58e136fcc715710ac
- MD5 50561f68fe7a912b1255ebfad05122a9
- SHA1 b1c2d9e4163863f7c365d47a66979a2cc488c1b2
- SHA512 34a3138822ad652d30e33d40bd4a55cf43d2f46bf5944a79e0c2ba8444f7e926fcb5f5ca6ffb3f4dc47c14683366d5ea2d3b4d9fbad63c3bfb66f1950a61cd65
- SSDEEP 3072:8iFpQh4mRpDGq7At/yRWr2wA3pnbMUq8hFOdhIU4oQZiEhBj:LFCh96F90Wf4nJPwdjWPx
- TLSH T1BCE3C42A7691F27AD415CAF83D1982E09479EC3221D2AC07F7C16B1B76B1D9BD320763
- MD5 SHA1 SHA512 SSDEEP TLSH