Analysis Overview
SHA256
407ba88105aba9abdef63505654070fe5aca39d066bc6273f2aeb853e47db523
Threat Level: Likely malicious
The file 94be68a29c3014ee15064f7824ac8136_JaffaCakes118 was found to be: Likely malicious.
Malicious Activity Summary
Possible privilege escalation attempt
Deletes itself
Loads dropped DLL
UPX packed file
Modifies file permissions
Checks computer location settings
File and Directory Permissions Modification: Windows File and Directory Permissions Modification
Drops file in System32 directory
Unsigned PE
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-13 21:09
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 21:09
Reported
2024-08-13 21:11
Platform
win7-20240708-en
Max time kernel
118s
Max time network
119s
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 |
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\rpcss.dll | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| 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 |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\icacls.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\94be68a29c3014ee15064f7824ac8136_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 |
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\94be68a29c3014ee15064f7824ac8136_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\94be68a29c3014ee15064f7824ac8136_JaffaCakes118.exe"
C:\Windows\SysWOW64\regsvr32.exe
"C:\Windows\system32\regsvr32.exe" /s C:\Users\Admin\AppData\Local\Temp\~~f76c39d.tmp ,C:\Users\Admin\AppData\Local\Temp\94be68a29c3014ee15064f7824ac8136_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/2548-0-0x0000000000400000-0x0000000000421000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\~~f76c39d.tmp
| MD5 | 09b474a2a070f23d33686f13f52e7cf2 |
| SHA1 | 71e1faccf6be787c2248f866cc93aa001201cfe0 |
| SHA256 | 0584c935b74e15689cbc50a9bd2416137d20a61fdde36603df1210fb82f5c4a5 |
| SHA512 | 0444bb327390956a239010175c45a46b994785edc3326e4455791d6ec6becfeab2a653b55bf5f30f6634946324fce0b529f0039fae26f4faacafdc02bd59c4f2 |
memory/592-14-0x00000000003D0000-0x00000000003D1000-memory.dmp
C:\Windows\SysWOW64\apa.dll
| MD5 | 1e87cfbacd4978a75112865c344376af |
| SHA1 | 29966f4038f9f6ef7421f40353c41fe7b6ca7c84 |
| SHA256 | 83717d28af61d83ceab0fafe3670362a8f63af1b246d6d5c9a5fa32a1b8acaa1 |
| SHA512 | 202ee268c8d067e5116bc42c59eba87fb568b9b34a20456f4f9185e153e43c3da8e1f74c286e621cd5f6d82c2b4f51933f89ef6f6f0101780b1ce25e82568600 |
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-13 21:09
Reported
2024-08-13 21:11
Platform
win10v2004-20240802-en
Max time kernel
140s
Max time network
151s
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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\94be68a29c3014ee15064f7824ac8136_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\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 |
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\94be68a29c3014ee15064f7824ac8136_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\94be68a29c3014ee15064f7824ac8136_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\94be68a29c3014ee15064f7824ac8136_JaffaCakes118.exe"
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.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 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.58.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 67.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 192.142.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 58.99.105.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 10.27.171.150.in-addr.arpa | udp |
Files
memory/756-0-0x0000000000400000-0x0000000000421000-memory.dmp
memory/756-3-0x0000000000400000-0x0000000000421000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\~~e578c81.tmp
| MD5 | 09b474a2a070f23d33686f13f52e7cf2 |
| SHA1 | 71e1faccf6be787c2248f866cc93aa001201cfe0 |
| SHA256 | 0584c935b74e15689cbc50a9bd2416137d20a61fdde36603df1210fb82f5c4a5 |
| SHA512 | 0444bb327390956a239010175c45a46b994785edc3326e4455791d6ec6becfeab2a653b55bf5f30f6634946324fce0b529f0039fae26f4faacafdc02bd59c4f2 |