Analysis Overview
SHA256
a6685af236c51f363e378f5cdeaf03741e9f11c096fcb21155e81ad65a1bc7f5
Threat Level: Known bad
The file 357d567ed2444279986ed2cdc828567f_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Darkcomet family
Modifies WinLogon for persistence
Darkcomet
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Adds Run key to start application
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-05-11 16:24
Signatures
Darkcomet family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-11 16:24
Reported
2024-05-11 16:27
Platform
win7-20240221-en
Max time kernel
148s
Max time network
151s
Command Line
Signatures
Darkcomet
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.exe" | C:\Users\Admin\AppData\Local\Temp\357d567ed2444279986ed2cdc828567f_JaffaCakes118.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\Documents\xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\357d567ed2444279986ed2cdc828567f_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\357d567ed2444279986ed2cdc828567f_JaffaCakes118.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.exe" | C:\Users\Admin\AppData\Local\Temp\357d567ed2444279986ed2cdc828567f_JaffaCakes118.exe | N/A |
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\Documents\xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\357d567ed2444279986ed2cdc828567f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\357d567ed2444279986ed2cdc828567f_JaffaCakes118.exe"
C:\Users\Admin\Documents\xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.exe
"C:\Users\Admin\Documents\xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.exe"
Network
| Country | Destination | Domain | Proto |
| RU | 91.76.157.16:80 | tcp | |
| RU | 91.76.157.16:8888 | tcp | |
| RU | 91.76.157.16:80 | tcp | |
| RU | 91.76.157.16:8888 | tcp | |
| RU | 91.76.157.16:80 | tcp | |
| RU | 91.76.157.16:8888 | tcp | |
| RU | 91.76.157.16:80 | tcp |
Files
memory/2936-0-0x0000000000240000-0x0000000000241000-memory.dmp
\Users\Admin\Documents\xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.exe
| MD5 | 357d567ed2444279986ed2cdc828567f |
| SHA1 | 62728068d98e8d10f1d7b99c3344f7b2dd37c90c |
| SHA256 | a6685af236c51f363e378f5cdeaf03741e9f11c096fcb21155e81ad65a1bc7f5 |
| SHA512 | 30ed6a857f7eaf3e2e0e634dc5e50ac288767ed43bc026502ea259d1594630916c0b5337ab7c1ac9c6d667d953eb16087e4fc8ae9483a8cc3e43eaf70fa6d8e7 |
memory/2584-11-0x0000000000240000-0x0000000000241000-memory.dmp
memory/2936-13-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2584-14-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2584-16-0x0000000000240000-0x0000000000241000-memory.dmp
memory/2584-17-0x0000000000400000-0x00000000004B2000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-11 16:24
Reported
2024-05-11 16:27
Platform
win10v2004-20240508-en
Max time kernel
149s
Max time network
154s
Command Line
Signatures
Darkcomet
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.exe" | C:\Users\Admin\AppData\Local\Temp\357d567ed2444279986ed2cdc828567f_JaffaCakes118.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\357d567ed2444279986ed2cdc828567f_JaffaCakes118.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\Documents\xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.exe" | C:\Users\Admin\AppData\Local\Temp\357d567ed2444279986ed2cdc828567f_JaffaCakes118.exe | N/A |
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\Documents\xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3300 wrote to memory of 4844 | N/A | C:\Users\Admin\AppData\Local\Temp\357d567ed2444279986ed2cdc828567f_JaffaCakes118.exe | C:\Users\Admin\Documents\xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.exe |
| PID 3300 wrote to memory of 4844 | N/A | C:\Users\Admin\AppData\Local\Temp\357d567ed2444279986ed2cdc828567f_JaffaCakes118.exe | C:\Users\Admin\Documents\xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.exe |
| PID 3300 wrote to memory of 4844 | N/A | C:\Users\Admin\AppData\Local\Temp\357d567ed2444279986ed2cdc828567f_JaffaCakes118.exe | C:\Users\Admin\Documents\xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\357d567ed2444279986ed2cdc828567f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\357d567ed2444279986ed2cdc828567f_JaffaCakes118.exe"
C:\Users\Admin\Documents\xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.exe
"C:\Users\Admin\Documents\xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| NL | 23.62.61.97:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 77.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.61.62.23.in-addr.arpa | udp |
| RU | 91.76.157.16:80 | tcp | |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 142.53.16.96.in-addr.arpa | udp |
| US | 52.111.229.43:443 | tcp | |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 122.10.44.20.in-addr.arpa | udp |
Files
memory/3300-0-0x0000000002810000-0x0000000002811000-memory.dmp
C:\Users\Admin\Documents\xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.exe
| MD5 | 357d567ed2444279986ed2cdc828567f |
| SHA1 | 62728068d98e8d10f1d7b99c3344f7b2dd37c90c |
| SHA256 | a6685af236c51f363e378f5cdeaf03741e9f11c096fcb21155e81ad65a1bc7f5 |
| SHA512 | 30ed6a857f7eaf3e2e0e634dc5e50ac288767ed43bc026502ea259d1594630916c0b5337ab7c1ac9c6d667d953eb16087e4fc8ae9483a8cc3e43eaf70fa6d8e7 |
memory/4844-13-0x0000000002150000-0x0000000002151000-memory.dmp
memory/3300-14-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/4844-15-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/4844-17-0x0000000002150000-0x0000000002151000-memory.dmp
memory/4844-18-0x0000000000400000-0x00000000004B2000-memory.dmp