Analysis
-
max time kernel
140s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
13-08-2024 21:09
Behavioral task
behavioral1
Sample
94be68a29c3014ee15064f7824ac8136_JaffaCakes118.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
94be68a29c3014ee15064f7824ac8136_JaffaCakes118.exe
Resource
win10v2004-20240802-en
General
-
Target
94be68a29c3014ee15064f7824ac8136_JaffaCakes118.exe
-
Size
68KB
-
MD5
94be68a29c3014ee15064f7824ac8136
-
SHA1
f719996139aa66e311b26d417ea82f5b52db8304
-
SHA256
407ba88105aba9abdef63505654070fe5aca39d066bc6273f2aeb853e47db523
-
SHA512
002138be8b4594997d19033de749110590a7194e32b6c9bd301177d4b8def55db01efb24af508fdb8778fa58d18ba1e40d396841c321ca2abd6cd9c8d907e1ee
-
SSDEEP
1536:5Hy7EO3aKNrN01NFJDXjjX1XQTAW9VgWGMCDFpnixaeY:9y7/Dp01hXjjX1rWGMIpnN
Malware Config
Signatures
-
Possible privilege escalation attempt 2 IoCs
Processes:
takeown.exeicacls.exepid process 3128 takeown.exe 384 icacls.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
94be68a29c3014ee15064f7824ac8136_JaffaCakes118.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation 94be68a29c3014ee15064f7824ac8136_JaffaCakes118.exe -
Deletes itself 1 IoCs
Processes:
regsvr32.exepid process 1648 regsvr32.exe -
Loads dropped DLL 1 IoCs
Processes:
regsvr32.exepid process 1648 regsvr32.exe -
Modifies file permissions 1 TTPs 2 IoCs
Processes:
takeown.exeicacls.exepid process 3128 takeown.exe 384 icacls.exe -
Processes:
resource yara_rule behavioral2/memory/756-0-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/756-3-0x0000000000400000-0x0000000000421000-memory.dmp upx -
File and Directory Permissions Modification: Windows File and Directory Permissions Modification 1 TTPs
-
Drops file in System32 directory 3 IoCs
Processes:
regsvr32.exedescription ioc process File opened for modification C:\Windows\SysWOW64\apa.dll regsvr32.exe File created C:\Windows\SysWOW64\rpcss.dll regsvr32.exe File opened for modification C:\Windows\SysWOW64\rpcss.dll regsvr32.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
94be68a29c3014ee15064f7824ac8136_JaffaCakes118.exeregsvr32.exetakeown.exeicacls.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 94be68a29c3014ee15064f7824ac8136_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language regsvr32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language takeown.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language icacls.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
regsvr32.exepid process 1648 regsvr32.exe 1648 regsvr32.exe 1648 regsvr32.exe 1648 regsvr32.exe 1648 regsvr32.exe 1648 regsvr32.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
regsvr32.exetakeown.exedescription pid process Token: SeDebugPrivilege 1648 regsvr32.exe Token: SeTakeOwnershipPrivilege 3128 takeown.exe -
Suspicious use of WriteProcessMemory 10 IoCs
Processes:
94be68a29c3014ee15064f7824ac8136_JaffaCakes118.exeregsvr32.exedescription pid process target process PID 756 wrote to memory of 1648 756 94be68a29c3014ee15064f7824ac8136_JaffaCakes118.exe regsvr32.exe PID 756 wrote to memory of 1648 756 94be68a29c3014ee15064f7824ac8136_JaffaCakes118.exe regsvr32.exe PID 756 wrote to memory of 1648 756 94be68a29c3014ee15064f7824ac8136_JaffaCakes118.exe regsvr32.exe PID 1648 wrote to memory of 3128 1648 regsvr32.exe takeown.exe PID 1648 wrote to memory of 3128 1648 regsvr32.exe takeown.exe PID 1648 wrote to memory of 3128 1648 regsvr32.exe takeown.exe PID 1648 wrote to memory of 384 1648 regsvr32.exe icacls.exe PID 1648 wrote to memory of 384 1648 regsvr32.exe icacls.exe PID 1648 wrote to memory of 384 1648 regsvr32.exe icacls.exe PID 1648 wrote to memory of 788 1648 regsvr32.exe svchost.exe
Processes
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k DcomLaunch -p1⤵PID:788
-
C:\Users\Admin\AppData\Local\Temp\94be68a29c3014ee15064f7824ac8136_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\94be68a29c3014ee15064f7824ac8136_JaffaCakes118.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:756 -
C:\Windows\SysWOW64\regsvr32.exe"C:\Windows\system32\regsvr32.exe" /s C:\Users\Admin\AppData\Local\Temp\~~e578c81.tmp ,C:\Users\Admin\AppData\Local\Temp\94be68a29c3014ee15064f7824ac8136_JaffaCakes118.exe2⤵
- Deletes itself
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1648 -
C:\Windows\SysWOW64\takeown.exetakeown /f "C:\Windows\system32\rpcss.dll"3⤵
- Possible privilege escalation attempt
- Modifies file permissions
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:3128
-
-
C:\Windows\SysWOW64\icacls.exeicacls "C:\Windows\system32\rpcss.dll" /grant administrators:F3⤵
- Possible privilege escalation attempt
- Modifies file permissions
- System Location Discovery: System Language Discovery
PID:384
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
1.0MB
MD509b474a2a070f23d33686f13f52e7cf2
SHA171e1faccf6be787c2248f866cc93aa001201cfe0
SHA2560584c935b74e15689cbc50a9bd2416137d20a61fdde36603df1210fb82f5c4a5
SHA5120444bb327390956a239010175c45a46b994785edc3326e4455791d6ec6becfeab2a653b55bf5f30f6634946324fce0b529f0039fae26f4faacafdc02bd59c4f2