Analysis Overview
SHA256
359ecb05de93b2ccc31cc15d249ef69a564d2f2e63d925126a6d784ef224766b
Threat Level: Known bad
The file 97d698a2454cb6675dad12033500c17f_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Formbook
Formbook payload
Loads dropped DLL
Suspicious use of SetThreadContext
Enumerates physical storage devices
Unsigned PE
Program crash
NSIS installer
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-02 21:39
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
NSIS installer
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Analysis: behavioral4
Detonation Overview
Submitted
2024-04-02 21:39
Reported
2024-04-02 21:41
Platform
win10v2004-20240226-en
Max time kernel
148s
Max time network
150s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\rundll32.exe |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2272 wrote to memory of 4480 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2272 wrote to memory of 4480 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2272 wrote to memory of 4480 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4480 wrote to memory of 2276 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4480 wrote to memory of 2276 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4480 wrote to memory of 2276 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4480 wrote to memory of 2276 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\offyp.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\offyp.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\offyp.dll,#1
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4480 -ip 4480
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4480 -s 736
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 78.117.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 87.117.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.236.111.52.in-addr.arpa | udp |
Files
memory/4480-0-0x00000000754C0000-0x00000000754CB000-memory.dmp
memory/4480-1-0x00000000754C0000-0x00000000754CB000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-02 21:39
Reported
2024-04-02 21:41
Platform
win7-20240221-en
Max time kernel
117s
Max time network
123s
Command Line
Signatures
Formbook
Formbook payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\97d698a2454cb6675dad12033500c17f_JaffaCakes118.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1784 set thread context of 1152 | N/A | C:\Users\Admin\AppData\Local\Temp\97d698a2454cb6675dad12033500c17f_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\97d698a2454cb6675dad12033500c17f_JaffaCakes118.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\97d698a2454cb6675dad12033500c17f_JaffaCakes118.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\97d698a2454cb6675dad12033500c17f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\97d698a2454cb6675dad12033500c17f_JaffaCakes118.exe"
C:\Users\Admin\AppData\Local\Temp\97d698a2454cb6675dad12033500c17f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\97d698a2454cb6675dad12033500c17f_JaffaCakes118.exe"
Network
Files
\Users\Admin\AppData\Local\Temp\nst780E.tmp\offyp.dll
| MD5 | 367abec7270d4919121d630ad1e9359a |
| SHA1 | f9508697941b1619541babd95744abeb1b0ce6f5 |
| SHA256 | 8154494ad395ee4638b8990a47a3d163452514f6b45ee71919445ba1cff60099 |
| SHA512 | 9fa6db19991df3bac0d97176f1cf14db0ed67c3b1d2276ebecaf7f7dab2c1cfe2e9db5820fd708a61312b57d4727805c7481b030e94837d6a9e9365d4a1f0638 |
memory/1784-7-0x0000000075220000-0x000000007522B000-memory.dmp
memory/1152-9-0x0000000000400000-0x000000000042F000-memory.dmp
memory/1784-10-0x0000000075220000-0x000000007522B000-memory.dmp
memory/1152-11-0x00000000008E0000-0x0000000000BE3000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-02 21:39
Reported
2024-04-02 21:41
Platform
win10v2004-20240226-en
Max time kernel
91s
Max time network
95s
Command Line
Signatures
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\97d698a2454cb6675dad12033500c17f_JaffaCakes118.exe | N/A |
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\97d698a2454cb6675dad12033500c17f_JaffaCakes118.exe |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 5648 wrote to memory of 828 | N/A | C:\Users\Admin\AppData\Local\Temp\97d698a2454cb6675dad12033500c17f_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\97d698a2454cb6675dad12033500c17f_JaffaCakes118.exe |
| PID 5648 wrote to memory of 828 | N/A | C:\Users\Admin\AppData\Local\Temp\97d698a2454cb6675dad12033500c17f_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\97d698a2454cb6675dad12033500c17f_JaffaCakes118.exe |
| PID 5648 wrote to memory of 828 | N/A | C:\Users\Admin\AppData\Local\Temp\97d698a2454cb6675dad12033500c17f_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\97d698a2454cb6675dad12033500c17f_JaffaCakes118.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\97d698a2454cb6675dad12033500c17f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\97d698a2454cb6675dad12033500c17f_JaffaCakes118.exe"
C:\Users\Admin\AppData\Local\Temp\97d698a2454cb6675dad12033500c17f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\97d698a2454cb6675dad12033500c17f_JaffaCakes118.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5648 -ip 5648
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 5648 -s 1072
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 82.117.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 72.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 98.117.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 87.117.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 30.243.111.52.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\nsn35C6.tmp\offyp.dll
| MD5 | 367abec7270d4919121d630ad1e9359a |
| SHA1 | f9508697941b1619541babd95744abeb1b0ce6f5 |
| SHA256 | 8154494ad395ee4638b8990a47a3d163452514f6b45ee71919445ba1cff60099 |
| SHA512 | 9fa6db19991df3bac0d97176f1cf14db0ed67c3b1d2276ebecaf7f7dab2c1cfe2e9db5820fd708a61312b57d4727805c7481b030e94837d6a9e9365d4a1f0638 |
memory/5648-6-0x0000000074DF0000-0x0000000074DFB000-memory.dmp
memory/5648-9-0x0000000074DF0000-0x0000000074DFB000-memory.dmp
Analysis: behavioral3
Detonation Overview
Submitted
2024-04-02 21:39
Reported
2024-04-02 21:41
Platform
win7-20240215-en
Max time kernel
146s
Max time network
118s
Command Line
Signatures
Formbook
Formbook payload
| 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 |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1468 set thread context of 2240 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2240 set thread context of 1092 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\Explorer.EXE |
| PID 2240 set thread context of 1092 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\Explorer.EXE |
| PID 2732 set thread context of 1092 | N/A | C:\Windows\SysWOW64\cmmon32.exe | C:\Windows\Explorer.EXE |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\cmmon32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\cmmon32.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\cmmon32.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\offyp.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\offyp.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\offyp.dll,#1
C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
C:\Windows\SysWOW64\cmmon32.exe
"C:\Windows\SysWOW64\cmmon32.exe"
C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\SysWOW64\rundll32.exe"
Network
Files
memory/1468-0-0x0000000074910000-0x000000007491B000-memory.dmp
memory/1468-1-0x0000000074900000-0x000000007490B000-memory.dmp
memory/1468-2-0x0000000074900000-0x000000007490B000-memory.dmp
memory/2240-3-0x0000000000400000-0x000000000042F000-memory.dmp
memory/1468-4-0x0000000074900000-0x000000007490B000-memory.dmp
memory/2240-5-0x0000000002270000-0x0000000002573000-memory.dmp
memory/1092-7-0x0000000003C10000-0x0000000003D10000-memory.dmp
memory/2240-9-0x00000000001F0000-0x0000000000205000-memory.dmp
memory/1092-10-0x0000000004CE0000-0x0000000004DFA000-memory.dmp
memory/2240-8-0x0000000000400000-0x000000000042F000-memory.dmp
memory/2240-14-0x0000000000250000-0x0000000000265000-memory.dmp
memory/2240-13-0x0000000000400000-0x000000000042F000-memory.dmp
memory/1092-12-0x0000000004CE0000-0x0000000004DFA000-memory.dmp
memory/1092-15-0x0000000005070000-0x0000000005175000-memory.dmp
memory/2732-16-0x0000000000BB0000-0x0000000000BBD000-memory.dmp
memory/2732-17-0x0000000000BB0000-0x0000000000BBD000-memory.dmp
memory/2732-18-0x0000000000080000-0x00000000000AF000-memory.dmp
memory/2732-19-0x0000000001FC0000-0x00000000022C3000-memory.dmp
memory/2732-20-0x0000000000080000-0x00000000000AF000-memory.dmp
memory/2732-22-0x00000000008E0000-0x0000000000974000-memory.dmp