Analysis Overview
SHA256
a27ca0d5777adceb7e91d43dfbb8b3d67fc76afd584de1cc466266e46e12fce9
Threat Level: Likely malicious
The file e3637ffd4e540d8e31562c241d544b70_JaffaCakes118 was found to be: Likely malicious.
Malicious Activity Summary
Modifies AppInit DLL entries
Deletes itself
Loads dropped DLL
Executes dropped EXE
UPX packed file
Drops file in System32 directory
Unsigned PE
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-06 22:04
Signatures
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-06 22:04
Reported
2024-04-06 22:07
Platform
win10v2004-20240226-en
Max time kernel
150s
Max time network
152s
Command Line
Signatures
Modifies AppInit DLL entries
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\meyotmek.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\meyotme.dll | C:\Users\Admin\AppData\Local\Temp\e3637ffd4e540d8e31562c241d544b70_JaffaCakes118.exe | N/A |
| File created | C:\Windows\SysWOW64\meyotmek.exe | C:\Users\Admin\AppData\Local\Temp\e3637ffd4e540d8e31562c241d544b70_JaffaCakes118.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\meyotmek.exe | C:\Users\Admin\AppData\Local\Temp\e3637ffd4e540d8e31562c241d544b70_JaffaCakes118.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e3637ffd4e540d8e31562c241d544b70_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e3637ffd4e540d8e31562c241d544b70_JaffaCakes118.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2204 wrote to memory of 4360 | N/A | C:\Users\Admin\AppData\Local\Temp\e3637ffd4e540d8e31562c241d544b70_JaffaCakes118.exe | C:\Windows\SysWOW64\meyotmek.exe |
| PID 2204 wrote to memory of 4360 | N/A | C:\Users\Admin\AppData\Local\Temp\e3637ffd4e540d8e31562c241d544b70_JaffaCakes118.exe | C:\Windows\SysWOW64\meyotmek.exe |
| PID 2204 wrote to memory of 4360 | N/A | C:\Users\Admin\AppData\Local\Temp\e3637ffd4e540d8e31562c241d544b70_JaffaCakes118.exe | C:\Windows\SysWOW64\meyotmek.exe |
| PID 2204 wrote to memory of 4064 | N/A | C:\Users\Admin\AppData\Local\Temp\e3637ffd4e540d8e31562c241d544b70_JaffaCakes118.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2204 wrote to memory of 4064 | N/A | C:\Users\Admin\AppData\Local\Temp\e3637ffd4e540d8e31562c241d544b70_JaffaCakes118.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2204 wrote to memory of 4064 | N/A | C:\Users\Admin\AppData\Local\Temp\e3637ffd4e540d8e31562c241d544b70_JaffaCakes118.exe | C:\Windows\SysWOW64\cmd.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\e3637ffd4e540d8e31562c241d544b70_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e3637ffd4e540d8e31562c241d544b70_JaffaCakes118.exe"
C:\Windows\SysWOW64\meyotmek.exe
C:\Windows\system32\meyotmek.exe ˜‰
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\e3637ffd4e540d8e31562c241d544b70_JaffaCakes118.exe.bat
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 64.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.204.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.73.42.20.in-addr.arpa | udp |
Files
memory/2204-0-0x0000000000400000-0x0000000000410000-memory.dmp
C:\Windows\SysWOW64\meyotmek.exe
| MD5 | e3637ffd4e540d8e31562c241d544b70 |
| SHA1 | 554d09b670aa233912724c6014e4da282e44a881 |
| SHA256 | a27ca0d5777adceb7e91d43dfbb8b3d67fc76afd584de1cc466266e46e12fce9 |
| SHA512 | ff9e2453a99fa549c9e2f1fa9cd48cd9a537b3360db0bb0c5356659577cea0b540fddee4d0a157df7f55fd1791d23a39a01e787c4044bd4471a9da77c49f93a6 |
memory/2204-8-0x0000000000400000-0x0000000000410000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\e3637ffd4e540d8e31562c241d544b70_JaffaCakes118.exe.bat
| MD5 | 5eb54437d0a0120f34ed415dd5bfb466 |
| SHA1 | e5c6e55a35fb92f0effa123e0d188d4f30608bc2 |
| SHA256 | ffea4c0018b629dd471747631164bdefedd7eb051efe25dcdbfdf0457bad1681 |
| SHA512 | 9963a9c1565b08578ba38b6284839eea5553c39bca14e1b54240f076441ed6194880b71537872c6dad3d81a086d81f669e347f2a7034005d1f55dcda5af703d5 |
memory/4360-10-0x0000000000400000-0x0000000000410000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-06 22:04
Reported
2024-04-06 22:07
Platform
win7-20240221-en
Max time kernel
150s
Max time network
124s
Command Line
Signatures
Modifies AppInit DLL entries
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\meyotmek.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e3637ffd4e540d8e31562c241d544b70_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e3637ffd4e540d8e31562c241d544b70_JaffaCakes118.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\meyotme.dll | C:\Users\Admin\AppData\Local\Temp\e3637ffd4e540d8e31562c241d544b70_JaffaCakes118.exe | N/A |
| File created | C:\Windows\SysWOW64\meyotmek.exe | C:\Users\Admin\AppData\Local\Temp\e3637ffd4e540d8e31562c241d544b70_JaffaCakes118.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\meyotmek.exe | C:\Users\Admin\AppData\Local\Temp\e3637ffd4e540d8e31562c241d544b70_JaffaCakes118.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e3637ffd4e540d8e31562c241d544b70_JaffaCakes118.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\e3637ffd4e540d8e31562c241d544b70_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e3637ffd4e540d8e31562c241d544b70_JaffaCakes118.exe"
C:\Windows\SysWOW64\meyotmek.exe
C:\Windows\system32\meyotmek.exe ˜‰
C:\Windows\SysWOW64\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\e3637ffd4e540d8e31562c241d544b70_JaffaCakes118.exe.bat
Network
Files
memory/1928-0-0x0000000000400000-0x0000000000410000-memory.dmp
\Windows\SysWOW64\meyotmek.exe
| MD5 | e3637ffd4e540d8e31562c241d544b70 |
| SHA1 | 554d09b670aa233912724c6014e4da282e44a881 |
| SHA256 | a27ca0d5777adceb7e91d43dfbb8b3d67fc76afd584de1cc466266e46e12fce9 |
| SHA512 | ff9e2453a99fa549c9e2f1fa9cd48cd9a537b3360db0bb0c5356659577cea0b540fddee4d0a157df7f55fd1791d23a39a01e787c4044bd4471a9da77c49f93a6 |
memory/1928-4-0x0000000000030000-0x0000000000040000-memory.dmp
memory/2172-11-0x0000000000400000-0x0000000000410000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\e3637ffd4e540d8e31562c241d544b70_JaffaCakes118.exe.bat
| MD5 | 5eb54437d0a0120f34ed415dd5bfb466 |
| SHA1 | e5c6e55a35fb92f0effa123e0d188d4f30608bc2 |
| SHA256 | ffea4c0018b629dd471747631164bdefedd7eb051efe25dcdbfdf0457bad1681 |
| SHA512 | 9963a9c1565b08578ba38b6284839eea5553c39bca14e1b54240f076441ed6194880b71537872c6dad3d81a086d81f669e347f2a7034005d1f55dcda5af703d5 |
memory/1928-19-0x0000000000400000-0x0000000000410000-memory.dmp