Analysis Overview
SHA256
22542d1aef8c0987be0f91b90e4f70f372cc1b16ed67bbb1582798cac732f538
Threat Level: Known bad
The file cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Formbook
Formbook payload
Loads dropped DLL
Executes dropped EXE
Checks computer location settings
Adds Run key to start application
Suspicious use of SetThreadContext
Unsigned PE
System Location Discovery: System Language Discovery
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: MapViewOfSection
Suspicious use of UnmapMainImage
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-31 04:26
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-31 04:26
Reported
2024-08-31 04:29
Platform
win7-20240708-en
Max time kernel
120s
Max time network
121s
Command Line
Signatures
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\kemelsystmgr.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\systemkemel = "C:\\Users\\Admin\\AppData\\Local\\kemelsystmgr.exe" | C:\Users\Admin\AppData\Local\kemelsystmgr.exe | N/A |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\kemelsystmgr.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\kemelsystmgr.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c copy "C:\Users\Admin\AppData\Local\Temp\cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe" "C:\Users\Admin\AppData\Local\kemelsystmgr.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c, "C:\Users\Admin\AppData\Local\kemelsystmgr.exe"
C:\Users\Admin\AppData\Local\kemelsystmgr.exe
"C:\Users\Admin\AppData\Local\kemelsystmgr.exe"
C:\Users\Admin\AppData\Local\kemelsystmgr.exe
"C:\Users\Admin\AppData\Local\kemelsystmgr.exe"
Network
Files
memory/2416-0-0x000000007437E000-0x000000007437F000-memory.dmp
memory/2416-1-0x0000000001000000-0x000000000106E000-memory.dmp
memory/2416-2-0x0000000000420000-0x000000000043A000-memory.dmp
memory/2416-3-0x0000000074370000-0x0000000074A5E000-memory.dmp
memory/2416-4-0x000000007437E000-0x000000007437F000-memory.dmp
memory/2416-5-0x0000000074370000-0x0000000074A5E000-memory.dmp
memory/2416-8-0x0000000074370000-0x0000000074A5E000-memory.dmp
C:\Users\Admin\AppData\Local\kemelsystmgr.exe
| MD5 | cc38e3ac1ca97aefdaf92643c1dc68f3 |
| SHA1 | 3f80d544c9e3b789db490a13c86dc5cd61682bc2 |
| SHA256 | 22542d1aef8c0987be0f91b90e4f70f372cc1b16ed67bbb1582798cac732f538 |
| SHA512 | 04c876e75e495e1dad18c06d669c2965feaa25d454fa54dc754091effc67c4704a78c10a53185b0cdb4e2cc3b5ca9ab6854632205539e6853dbd84e1b4f79235 |
memory/2904-12-0x00000000010D0000-0x000000000113E000-memory.dmp
memory/2904-13-0x0000000074320000-0x0000000074A0E000-memory.dmp
memory/2904-14-0x0000000074320000-0x0000000074A0E000-memory.dmp
memory/2904-15-0x0000000074320000-0x0000000074A0E000-memory.dmp
memory/1864-16-0x0000000000400000-0x000000000042A000-memory.dmp
memory/1864-19-0x0000000000400000-0x000000000042A000-memory.dmp
memory/1864-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2904-21-0x0000000074320000-0x0000000074A0E000-memory.dmp
memory/2904-22-0x0000000074320000-0x0000000074A0E000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-31 04:26
Reported
2024-08-31 04:29
Platform
win10v2004-20240802-en
Max time kernel
147s
Max time network
142s
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 |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\kemelsystmgr.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\kemelsystmgr.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\systemkemel = "C:\\Users\\Admin\\AppData\\Local\\kemelsystmgr.exe" | C:\Users\Admin\AppData\Local\kemelsystmgr.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1376 set thread context of 4012 | N/A | C:\Users\Admin\AppData\Local\kemelsystmgr.exe | C:\Users\Admin\AppData\Local\kemelsystmgr.exe |
| PID 4012 set thread context of 3504 | N/A | C:\Users\Admin\AppData\Local\kemelsystmgr.exe | C:\Windows\Explorer.EXE |
| PID 260 set thread context of 3504 | N/A | C:\Windows\SysWOW64\mstsc.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:\Windows\SysWOW64\mstsc.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\kemelsystmgr.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\kemelsystmgr.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\kemelsystmgr.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\kemelsystmgr.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\kemelsystmgr.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\mstsc.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\mstsc.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\mstsc.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\mstsc.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\mstsc.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\mstsc.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\mstsc.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\mstsc.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\mstsc.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\mstsc.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\mstsc.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\mstsc.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\mstsc.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\mstsc.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\kemelsystmgr.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\kemelsystmgr.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\kemelsystmgr.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\mstsc.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\mstsc.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\kemelsystmgr.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\kemelsystmgr.exe | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Windows\Explorer.EXE | N/A |
| Token: SeCreatePagefilePrivilege | N/A | C:\Windows\Explorer.EXE | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\mstsc.exe | N/A |
Suspicious use of UnmapMainImage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Explorer.EXE | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
C:\Users\Admin\AppData\Local\Temp\cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c copy "C:\Users\Admin\AppData\Local\Temp\cc38e3ac1ca97aefdaf92643c1dc68f3_JaffaCakes118.exe" "C:\Users\Admin\AppData\Local\kemelsystmgr.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c, "C:\Users\Admin\AppData\Local\kemelsystmgr.exe"
C:\Users\Admin\AppData\Local\kemelsystmgr.exe
"C:\Users\Admin\AppData\Local\kemelsystmgr.exe"
C:\Users\Admin\AppData\Local\kemelsystmgr.exe
"C:\Users\Admin\AppData\Local\kemelsystmgr.exe"
C:\Windows\SysWOW64\mstsc.exe
"C:\Windows\SysWOW64\mstsc.exe"
C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\kemelsystmgr.exe"
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 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 150.171.27.10:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 10.27.171.150.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 81.144.22.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 67.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 147.142.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.99.105.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | www.wwwambyg.com | udp |
Files
memory/4164-0-0x000000007447E000-0x000000007447F000-memory.dmp
memory/4164-1-0x0000000000C30000-0x0000000000C9E000-memory.dmp
memory/4164-2-0x00000000055E0000-0x00000000055FA000-memory.dmp
memory/4164-3-0x0000000074470000-0x0000000074C20000-memory.dmp
memory/4164-4-0x000000007447E000-0x000000007447F000-memory.dmp
memory/4164-5-0x0000000005A90000-0x0000000005AF6000-memory.dmp
memory/4164-6-0x0000000005BA0000-0x0000000005C32000-memory.dmp
memory/4164-7-0x0000000074470000-0x0000000074C20000-memory.dmp
memory/4164-8-0x0000000006330000-0x00000000068D4000-memory.dmp
memory/4164-12-0x0000000074470000-0x0000000074C20000-memory.dmp
C:\Users\Admin\AppData\Local\kemelsystmgr.exe
| MD5 | cc38e3ac1ca97aefdaf92643c1dc68f3 |
| SHA1 | 3f80d544c9e3b789db490a13c86dc5cd61682bc2 |
| SHA256 | 22542d1aef8c0987be0f91b90e4f70f372cc1b16ed67bbb1582798cac732f538 |
| SHA512 | 04c876e75e495e1dad18c06d669c2965feaa25d454fa54dc754091effc67c4704a78c10a53185b0cdb4e2cc3b5ca9ab6854632205539e6853dbd84e1b4f79235 |
memory/1376-16-0x0000000074470000-0x0000000074C20000-memory.dmp
memory/1376-17-0x0000000074470000-0x0000000074C20000-memory.dmp
memory/1376-18-0x0000000074470000-0x0000000074C20000-memory.dmp
memory/4012-19-0x0000000000400000-0x000000000042A000-memory.dmp
memory/1376-21-0x0000000074470000-0x0000000074C20000-memory.dmp
memory/1376-23-0x0000000074470000-0x0000000074C20000-memory.dmp
memory/4012-24-0x00000000015B0000-0x00000000018FA000-memory.dmp
memory/3504-26-0x00000000025C0000-0x00000000026F8000-memory.dmp
memory/260-27-0x00000000009A0000-0x0000000000ADA000-memory.dmp
memory/4012-28-0x0000000000400000-0x000000000042A000-memory.dmp
memory/260-29-0x00000000009A0000-0x0000000000ADA000-memory.dmp
memory/3504-31-0x00000000025C0000-0x00000000026F8000-memory.dmp
memory/3504-33-0x0000000003E90000-0x0000000003F7F000-memory.dmp