Analysis Overview
SHA256
03d6fa79b7d5bbe9e643da58bb6319f2f2532c7ae616d79d1701ad0e5dc232f8
Threat Level: Known bad
The file JaffaCakes118_03d6fa79b7d5bbe9e643da58bb6319f2f2532c7ae616d79d1701ad0e5dc232f8 was found to be: Known bad.
Malicious Activity Summary
Formbook family
Formbook
Formbook payload
Loads dropped DLL
Deletes itself
Suspicious use of SetThreadContext
System Location Discovery: System Language Discovery
Program crash
Unsigned PE
Enumerates physical storage devices
NSIS installer
Suspicious behavior: MapViewOfSection
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-12-30 04:24
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: behavioral1
Detonation Overview
Submitted
2024-12-30 04:24
Reported
2024-12-30 04:27
Platform
win7-20240903-en
Max time kernel
146s
Max time network
122s
Command Line
Signatures
Formbook
Formbook family
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 |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2112 set thread context of 2788 | N/A | C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe | C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe |
| PID 2788 set thread context of 1204 | N/A | C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe | C:\Windows\Explorer.EXE |
| PID 2932 set thread context of 1204 | N/A | C:\Windows\SysWOW64\netsh.exe | C:\Windows\Explorer.EXE |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\netsh.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\netsh.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\netsh.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\netsh.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe
"C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe"
C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe
"C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe"
C:\Windows\SysWOW64\netsh.exe
"C:\Windows\SysWOW64\netsh.exe"
C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe"
Network
Files
C:\Users\Admin\AppData\Local\Temp\nsjEF8E.tmp\sydrnwxz.dll
| MD5 | f50d919a09c776df2c4fa63e3dcd4526 |
| SHA1 | 917c24b146a6a17ec1cfaebde50199256b4126da |
| SHA256 | f2635ca10d2ad2503eefbbfd4673e9c8ad66f363d0117fc4fbd79554ca482f20 |
| SHA512 | 5b578e7197b7b584185ea83b91938d4b9f152703c6039f98c096423cf94111e2f7146789dea548a2f317d1abf623356d36b4e047ff1d37835572b84020c89bf2 |
memory/2112-7-0x0000000010021000-0x0000000010023000-memory.dmp
memory/2788-9-0x0000000000400000-0x000000000042F000-memory.dmp
memory/2788-11-0x0000000000400000-0x000000000042F000-memory.dmp
memory/1204-12-0x00000000040E0000-0x00000000042E0000-memory.dmp
memory/1204-13-0x0000000005230000-0x0000000005356000-memory.dmp
memory/2932-16-0x00000000017A0000-0x00000000017BB000-memory.dmp
memory/2932-18-0x00000000017A0000-0x00000000017BB000-memory.dmp
memory/2932-19-0x0000000000180000-0x00000000001AF000-memory.dmp
memory/1204-20-0x0000000005230000-0x0000000005356000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-12-30 04:24
Reported
2024-12-30 04:27
Platform
win10v2004-20241007-en
Max time kernel
92s
Max time network
138s
Command Line
Signatures
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Payment Copy.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\Payment Copy.exe |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 5032 wrote to memory of 4988 | N/A | C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe | C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe |
| PID 5032 wrote to memory of 4988 | N/A | C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe | C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe |
| PID 5032 wrote to memory of 4988 | N/A | C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe | C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe
"C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe"
C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe
"C:\Users\Admin\AppData\Local\Temp\Payment Copy.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5032 -ip 5032
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 5032 -s 1020
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 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 85.49.80.91.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\nst9D4A.tmp\sydrnwxz.dll
| MD5 | f50d919a09c776df2c4fa63e3dcd4526 |
| SHA1 | 917c24b146a6a17ec1cfaebde50199256b4126da |
| SHA256 | f2635ca10d2ad2503eefbbfd4673e9c8ad66f363d0117fc4fbd79554ca482f20 |
| SHA512 | 5b578e7197b7b584185ea83b91938d4b9f152703c6039f98c096423cf94111e2f7146789dea548a2f317d1abf623356d36b4e047ff1d37835572b84020c89bf2 |
memory/5032-7-0x0000000010021000-0x0000000010023000-memory.dmp
Analysis: behavioral3
Detonation Overview
Submitted
2024-12-30 04:24
Reported
2024-12-30 04:27
Platform
win7-20240903-en
Max time kernel
117s
Max time network
121s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\rundll32.exe |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\sydrnwxz.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\sydrnwxz.dll,#1
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2708 -s 252
Network
Files
Analysis: behavioral4
Detonation Overview
Submitted
2024-12-30 04:24
Reported
2024-12-30 04:27
Platform
win10v2004-20241007-en
Max time kernel
93s
Max time network
145s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\rundll32.exe |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 5020 wrote to memory of 1968 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 5020 wrote to memory of 1968 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 5020 wrote to memory of 1968 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\sydrnwxz.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\sydrnwxz.dll,#1
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1968 -ip 1968
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1968 -s 708
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 83.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 138.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.163.202.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 85.49.80.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |