Analysis
-
max time kernel
120s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
13-08-2024 16:01
Behavioral task
behavioral1
Sample
93c72d6d182e00b4730f18d1a053b294_JaffaCakes118.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
93c72d6d182e00b4730f18d1a053b294_JaffaCakes118.exe
Resource
win10v2004-20240802-en
General
-
Target
93c72d6d182e00b4730f18d1a053b294_JaffaCakes118.exe
-
Size
69KB
-
MD5
93c72d6d182e00b4730f18d1a053b294
-
SHA1
e727d9288624e3c13ce24061941aa22353f4b5ec
-
SHA256
a1d8130956aa19401c49e2485717fd34e467821f3ae8c01250dd8ce81cbbf0c3
-
SHA512
310b493088af720a61111ab65a9d3a29819e83aacb6152f7e4423f31b4886ac3e19258f5df4ade0f6cb7c607c44f9cd3ff00aa1f2d64095db33e8d04764e190a
-
SSDEEP
1536:7TaRCB+ilTAzxT3WkMSupOcFDK2FQZhuhM6xST7HsCJwEAl/JFpcuS:7mils9WkMSwOQDvCCbjJ/JH5
Malware Config
Signatures
-
Possible privilege escalation attempt 2 IoCs
Processes:
takeown.exeicacls.exepid process 1620 takeown.exe 2416 icacls.exe -
Deletes itself 1 IoCs
Processes:
regsvr32.exepid process 2380 regsvr32.exe -
Loads dropped DLL 1 IoCs
Processes:
regsvr32.exepid process 2380 regsvr32.exe -
Modifies file permissions 1 TTPs 2 IoCs
Processes:
takeown.exeicacls.exepid process 1620 takeown.exe 2416 icacls.exe -
Processes:
resource yara_rule behavioral1/memory/1872-0-0x0000000000400000-0x0000000000422000-memory.dmp upx behavioral1/memory/1872-3-0x0000000000400000-0x0000000000422000-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 -
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:
93c72d6d182e00b4730f18d1a053b294_JaffaCakes118.exeregsvr32.exetakeown.exeicacls.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 93c72d6d182e00b4730f18d1a053b294_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 3 IoCs
Processes:
regsvr32.exepid process 2380 regsvr32.exe 2380 regsvr32.exe 2380 regsvr32.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
regsvr32.exetakeown.exedescription pid process Token: SeDebugPrivilege 2380 regsvr32.exe Token: SeTakeOwnershipPrivilege 1620 takeown.exe -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
93c72d6d182e00b4730f18d1a053b294_JaffaCakes118.exeregsvr32.exedescription pid process target process PID 1872 wrote to memory of 2380 1872 93c72d6d182e00b4730f18d1a053b294_JaffaCakes118.exe regsvr32.exe PID 1872 wrote to memory of 2380 1872 93c72d6d182e00b4730f18d1a053b294_JaffaCakes118.exe regsvr32.exe PID 1872 wrote to memory of 2380 1872 93c72d6d182e00b4730f18d1a053b294_JaffaCakes118.exe regsvr32.exe PID 1872 wrote to memory of 2380 1872 93c72d6d182e00b4730f18d1a053b294_JaffaCakes118.exe regsvr32.exe PID 1872 wrote to memory of 2380 1872 93c72d6d182e00b4730f18d1a053b294_JaffaCakes118.exe regsvr32.exe PID 1872 wrote to memory of 2380 1872 93c72d6d182e00b4730f18d1a053b294_JaffaCakes118.exe regsvr32.exe PID 1872 wrote to memory of 2380 1872 93c72d6d182e00b4730f18d1a053b294_JaffaCakes118.exe regsvr32.exe PID 2380 wrote to memory of 1620 2380 regsvr32.exe takeown.exe PID 2380 wrote to memory of 1620 2380 regsvr32.exe takeown.exe PID 2380 wrote to memory of 1620 2380 regsvr32.exe takeown.exe PID 2380 wrote to memory of 1620 2380 regsvr32.exe takeown.exe PID 2380 wrote to memory of 2416 2380 regsvr32.exe icacls.exe PID 2380 wrote to memory of 2416 2380 regsvr32.exe icacls.exe PID 2380 wrote to memory of 2416 2380 regsvr32.exe icacls.exe PID 2380 wrote to memory of 2416 2380 regsvr32.exe icacls.exe PID 2380 wrote to memory of 604 2380 regsvr32.exe svchost.exe
Processes
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k DcomLaunch1⤵PID:604
-
C:\Users\Admin\AppData\Local\Temp\93c72d6d182e00b4730f18d1a053b294_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\93c72d6d182e00b4730f18d1a053b294_JaffaCakes118.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1872 -
C:\Windows\SysWOW64\regsvr32.exe"C:\Windows\system32\regsvr32.exe" /s C:\Users\Admin\AppData\Local\Temp\~~f76e1e6.tmp ,C:\Users\Admin\AppData\Local\Temp\93c72d6d182e00b4730f18d1a053b294_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:2380 -
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:1620
-
-
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:2416
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
1.0MB
MD57b2ebb9d24d1600af75c60532516531c
SHA1dd9ee106110c1c5cbbf6a59fdd1e78e8612afa68
SHA256f49a6104ea865bb381afe2287fa727cccfd0f62c048b82cccced0d6af539722a
SHA51239f97f66a929ca0751152619ab13dc2a0952746fa75a6271c1f14c04354366247dbbf5029bc901fa3652b920ba960876d7906b82e1a1c56649d03c6fcb205e67
-
Filesize
201B
MD5dd7c9c24f21c7b5b89f678c46bfd2f71
SHA14b811dee1fe3675299937f76871bf3fa31f7df1c
SHA256380729ab3fd16d2c114c9e7219173f1183066963eef2326dc6a5d767418d63e8
SHA512e958ebe07b3079d427b450c72a02b34cca4fa6803d2a10c2c1ad1d25d5d70b7405b7249a3997785d7cdb8961f4b69d32d3f989ea7d3a0e6ea15b8dccec03136e