Analysis Overview
SHA256
a1d8130956aa19401c49e2485717fd34e467821f3ae8c01250dd8ce81cbbf0c3
Threat Level: Likely malicious
The file 93c72d6d182e00b4730f18d1a053b294_JaffaCakes118 was found to be: Likely malicious.
Malicious Activity Summary
Possible privilege escalation attempt
Deletes itself
Loads dropped DLL
Modifies file permissions
UPX packed file
Checks computer location settings
File and Directory Permissions Modification: Windows File and Directory Permissions Modification
Drops file in System32 directory
Unsigned PE
System Location Discovery: System Language Discovery
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-13 16:01
Signatures
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| 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
2024-08-13 16:01
Reported
2024-08-13 16:04
Platform
win7-20240704-en
Max time kernel
120s
Max time network
121s
Command Line
Signatures
Possible privilege escalation attempt
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\regsvr32.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\regsvr32.exe | N/A |
Modifies file permissions
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
File and Directory Permissions Modification: Windows File and Directory Permissions Modification
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\apa.dll | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| File created | C:\Windows\SysWOW64\rpcss.dll | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\rpcss.dll | C:\Windows\SysWOW64\regsvr32.exe | N/A |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\93c72d6d182e00b4730f18d1a053b294_JaffaCakes118.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\takeown.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\icacls.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\regsvr32.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k DcomLaunch
C:\Users\Admin\AppData\Local\Temp\93c72d6d182e00b4730f18d1a053b294_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\93c72d6d182e00b4730f18d1a053b294_JaffaCakes118.exe"
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.exe
C:\Windows\SysWOW64\takeown.exe
takeown /f "C:\Windows\system32\rpcss.dll"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Windows\system32\rpcss.dll" /grant administrators:F
Network
Files
memory/1872-0-0x0000000000400000-0x0000000000422000-memory.dmp
memory/1872-3-0x0000000000400000-0x0000000000422000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\~~f76e1e6.tmp
| MD5 | 7b2ebb9d24d1600af75c60532516531c |
| SHA1 | dd9ee106110c1c5cbbf6a59fdd1e78e8612afa68 |
| SHA256 | f49a6104ea865bb381afe2287fa727cccfd0f62c048b82cccced0d6af539722a |
| SHA512 | 39f97f66a929ca0751152619ab13dc2a0952746fa75a6271c1f14c04354366247dbbf5029bc901fa3652b920ba960876d7906b82e1a1c56649d03c6fcb205e67 |
C:\Windows\SysWOW64\apa.dll
| MD5 | dd7c9c24f21c7b5b89f678c46bfd2f71 |
| SHA1 | 4b811dee1fe3675299937f76871bf3fa31f7df1c |
| SHA256 | 380729ab3fd16d2c114c9e7219173f1183066963eef2326dc6a5d767418d63e8 |
| SHA512 | e958ebe07b3079d427b450c72a02b34cca4fa6803d2a10c2c1ad1d25d5d70b7405b7249a3997785d7cdb8961f4b69d32d3f989ea7d3a0e6ea15b8dccec03136e |
memory/604-15-0x00000000001D0000-0x00000000001D1000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-13 16:01
Reported
2024-08-13 16:04
Platform
win10v2004-20240802-en
Max time kernel
141s
Max time network
149s
Command Line
Signatures
Possible privilege escalation attempt
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\93c72d6d182e00b4730f18d1a053b294_JaffaCakes118.exe | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\regsvr32.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\regsvr32.exe | N/A |
Modifies file permissions
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
File and Directory Permissions Modification: Windows File and Directory Permissions Modification
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\apa.dll | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| File created | C:\Windows\SysWOW64\rpcss.dll | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\rpcss.dll | C:\Windows\SysWOW64\regsvr32.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:\Users\Admin\AppData\Local\Temp\93c72d6d182e00b4730f18d1a053b294_JaffaCakes118.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\takeown.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\icacls.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\regsvr32.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k DcomLaunch -p
C:\Users\Admin\AppData\Local\Temp\93c72d6d182e00b4730f18d1a053b294_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\93c72d6d182e00b4730f18d1a053b294_JaffaCakes118.exe"
C:\Windows\SysWOW64\regsvr32.exe
"C:\Windows\system32\regsvr32.exe" /s C:\Users\Admin\AppData\Local\Temp\~~e57b8b1.tmp ,C:\Users\Admin\AppData\Local\Temp\93c72d6d182e00b4730f18d1a053b294_JaffaCakes118.exe
C:\Windows\SysWOW64\takeown.exe
takeown /f "C:\Windows\system32\rpcss.dll"
C:\Windows\SysWOW64\icacls.exe
icacls "C:\Windows\system32\rpcss.dll" /grant administrators:F
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 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 71.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.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 | 24.58.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.143.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 30.243.111.52.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 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 10.28.171.150.in-addr.arpa | udp |
Files
memory/1612-0-0x0000000000400000-0x0000000000422000-memory.dmp
memory/1612-3-0x0000000000400000-0x0000000000422000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\~~e57b8b1.tmp
| MD5 | 7b2ebb9d24d1600af75c60532516531c |
| SHA1 | dd9ee106110c1c5cbbf6a59fdd1e78e8612afa68 |
| SHA256 | f49a6104ea865bb381afe2287fa727cccfd0f62c048b82cccced0d6af539722a |
| SHA512 | 39f97f66a929ca0751152619ab13dc2a0952746fa75a6271c1f14c04354366247dbbf5029bc901fa3652b920ba960876d7906b82e1a1c56649d03c6fcb205e67 |