Analysis Overview
SHA256
2b1539eebb7c85895026ddcd1e0b062c0d9783d90c7f86236f64f42c2e8d81ea
Threat Level: Known bad
The file a40d9c6f964664b6b5a3ec4ed532df6c_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Formbook
Formbook payload
Loads dropped DLL
Suspicious use of SetThreadContext
Enumerates physical storage devices
Program crash
Unsigned PE
NSIS installer
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-03 19:00
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
2024-04-03 19:00
Reported
2024-04-03 19:03
Platform
win7-20240221-en
Max time kernel
117s
Max time network
118s
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\a40d9c6f964664b6b5a3ec4ed532df6c_JaffaCakes118.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1968 set thread context of 2476 | N/A | C:\Users\Admin\AppData\Local\Temp\a40d9c6f964664b6b5a3ec4ed532df6c_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\a40d9c6f964664b6b5a3ec4ed532df6c_JaffaCakes118.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a40d9c6f964664b6b5a3ec4ed532df6c_JaffaCakes118.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\a40d9c6f964664b6b5a3ec4ed532df6c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a40d9c6f964664b6b5a3ec4ed532df6c_JaffaCakes118.exe"
C:\Users\Admin\AppData\Local\Temp\a40d9c6f964664b6b5a3ec4ed532df6c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a40d9c6f964664b6b5a3ec4ed532df6c_JaffaCakes118.exe"
Network
Files
\Users\Admin\AppData\Local\Temp\nsd18EE.tmp\xztemc.dll
| MD5 | 9c1dba61231005537c4154af2d66b50a |
| SHA1 | 8a51892b643ace4c1a99b45e5b03df795b8bb984 |
| SHA256 | 4f46b2449a7bd7a664b9328f240fc3bfa522e36918a0b672bec3015761d0b67d |
| SHA512 | cd2fbf5b0a67885cd20dfb2fda999c0d9136d34e3c90745d39acf54a5bcf943e8eeb9ea9a53aa179f10aebec84e360582bdaa81604b879a05ef20813533c0ab7 |
memory/1968-7-0x0000000074B30000-0x0000000074B3A000-memory.dmp
memory/2476-9-0x0000000000400000-0x000000000042F000-memory.dmp
memory/1968-10-0x0000000074B30000-0x0000000074B3A000-memory.dmp
memory/2476-13-0x0000000000990000-0x0000000000C93000-memory.dmp
memory/2476-14-0x0000000000990000-0x0000000000C93000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-03 19:00
Reported
2024-04-03 19:03
Platform
win10v2004-20231215-en
Max time kernel
93s
Max time network
155s
Command Line
Signatures
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a40d9c6f964664b6b5a3ec4ed532df6c_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\a40d9c6f964664b6b5a3ec4ed532df6c_JaffaCakes118.exe |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4968 wrote to memory of 2504 | N/A | C:\Users\Admin\AppData\Local\Temp\a40d9c6f964664b6b5a3ec4ed532df6c_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\a40d9c6f964664b6b5a3ec4ed532df6c_JaffaCakes118.exe |
| PID 4968 wrote to memory of 2504 | N/A | C:\Users\Admin\AppData\Local\Temp\a40d9c6f964664b6b5a3ec4ed532df6c_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\a40d9c6f964664b6b5a3ec4ed532df6c_JaffaCakes118.exe |
| PID 4968 wrote to memory of 2504 | N/A | C:\Users\Admin\AppData\Local\Temp\a40d9c6f964664b6b5a3ec4ed532df6c_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\a40d9c6f964664b6b5a3ec4ed532df6c_JaffaCakes118.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\a40d9c6f964664b6b5a3ec4ed532df6c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a40d9c6f964664b6b5a3ec4ed532df6c_JaffaCakes118.exe"
C:\Users\Admin\AppData\Local\Temp\a40d9c6f964664b6b5a3ec4ed532df6c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a40d9c6f964664b6b5a3ec4ed532df6c_JaffaCakes118.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4968 -ip 4968
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4968 -s 1016
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.66.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.159.190.20.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 | 227.97.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 100.58.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 147.108.222.173.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 243.108.222.173.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\nsm3F1D.tmp\xztemc.dll
| MD5 | 9c1dba61231005537c4154af2d66b50a |
| SHA1 | 8a51892b643ace4c1a99b45e5b03df795b8bb984 |
| SHA256 | 4f46b2449a7bd7a664b9328f240fc3bfa522e36918a0b672bec3015761d0b67d |
| SHA512 | cd2fbf5b0a67885cd20dfb2fda999c0d9136d34e3c90745d39acf54a5bcf943e8eeb9ea9a53aa179f10aebec84e360582bdaa81604b879a05ef20813533c0ab7 |
memory/4968-6-0x00000000746C0000-0x00000000746CA000-memory.dmp
memory/4968-9-0x00000000746C0000-0x00000000746CA000-memory.dmp
Analysis: behavioral3
Detonation Overview
Submitted
2024-04-03 19:00
Reported
2024-04-03 19:03
Platform
win7-20240220-en
Max time kernel
148s
Max time network
124s
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 2252 set thread context of 1144 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1144 set thread context of 1208 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\Explorer.EXE |
| PID 1144 set thread context of 1208 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\Explorer.EXE |
| PID 2164 set thread context of 1208 | N/A | C:\Windows\SysWOW64\explorer.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\explorer.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\explorer.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\explorer.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\xztemc.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\xztemc.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\xztemc.dll,#1
C:\Windows\SysWOW64\explorer.exe
"C:\Windows\SysWOW64\explorer.exe"
C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\SysWOW64\rundll32.exe"
Network
Files
memory/2252-0-0x0000000074600000-0x000000007460A000-memory.dmp
memory/2252-1-0x0000000074600000-0x000000007460A000-memory.dmp
memory/2252-2-0x00000000745F0000-0x00000000745FA000-memory.dmp
memory/1144-3-0x0000000000400000-0x000000000042F000-memory.dmp
memory/2252-4-0x00000000745F0000-0x00000000745FA000-memory.dmp
memory/1144-5-0x00000000021A0000-0x00000000024A3000-memory.dmp
memory/1144-9-0x00000000001F0000-0x0000000000205000-memory.dmp
memory/1144-8-0x0000000000400000-0x000000000042F000-memory.dmp
memory/1208-7-0x0000000003160000-0x0000000003260000-memory.dmp
memory/1208-10-0x0000000006260000-0x000000000634F000-memory.dmp
memory/1144-13-0x0000000000400000-0x000000000042F000-memory.dmp
memory/1144-14-0x0000000000230000-0x0000000000245000-memory.dmp
memory/1208-15-0x0000000006410000-0x00000000064D9000-memory.dmp
memory/2164-16-0x0000000000C20000-0x0000000000EA1000-memory.dmp
memory/2164-17-0x0000000000C20000-0x0000000000EA1000-memory.dmp
memory/2164-18-0x0000000000080000-0x00000000000AF000-memory.dmp
memory/2164-19-0x0000000002610000-0x0000000002913000-memory.dmp
memory/2164-20-0x0000000000080000-0x00000000000AF000-memory.dmp
memory/2164-23-0x0000000002480000-0x0000000002514000-memory.dmp
memory/1208-24-0x0000000006410000-0x00000000064D9000-memory.dmp
Analysis: behavioral4
Detonation Overview
Submitted
2024-04-03 19:00
Reported
2024-04-03 19:03
Platform
win10v2004-20240226-en
Max time kernel
149s
Max time network
151s
Command Line
Signatures
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 624 wrote to memory of 3852 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 624 wrote to memory of 3852 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 624 wrote to memory of 3852 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 3852 wrote to memory of 3636 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 3852 wrote to memory of 3636 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 3852 wrote to memory of 3636 | 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\xztemc.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\xztemc.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\xztemc.dll,#1
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 183.142.211.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 227.66.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 76.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 147.108.222.173.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 210.108.222.173.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 211.143.182.52.in-addr.arpa | udp |
Files
memory/3852-0-0x0000000075920000-0x000000007592A000-memory.dmp
memory/3852-1-0x0000000075920000-0x000000007592A000-memory.dmp