Analysis Overview
SHA256
511c0e53d4d823a3a916eb3e7c777f1d4f9d38f0da43af7cdaeb878f5108ae65
Threat Level: Known bad
The file 0517b0613e9bc016de8232847e25d92c_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
MetaSploit
Modifies security service
Modifies WinLogon for persistence
Windows security bypass
Disables RegEdit via registry modification
Disables Task Manager via registry modification
Checks BIOS information in registry
Deletes itself
Executes dropped EXE
Loads dropped DLL
Windows security modification
Identifies Wine through registry keys
Adds Run key to start application
Drops file in Program Files directory
Unsigned PE
Suspicious use of WriteProcessMemory
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-06-20 10:19
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-20 10:19
Reported
2024-06-20 10:22
Platform
win7-20240611-en
Max time kernel
146s
Max time network
146s
Command Line
Signatures
MetaSploit
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "Explorer.exe %PROGRAMFILES%\\SYSTMEM.EXE" | C:\Program Files (x86)\SYSTMEM.EXE | N/A |
Modifies security service
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4" | C:\Program Files (x86)\SYSTMEM.EXE | N/A |
Windows security bypass
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" | C:\Program Files (x86)\SYSTMEM.EXE | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Program Files (x86)\SYSTMEM.EXE | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" | C:\Program Files (x86)\SYSTMEM.EXE | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1" | C:\Program Files (x86)\SYSTMEM.EXE | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1" | C:\Program Files (x86)\SYSTMEM.EXE | N/A |
Disables RegEdit via registry modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" | C:\Program Files (x86)\SYSTMEM.EXE | N/A |
Disables Task Manager via registry modification
Checks BIOS information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion | C:\Users\Admin\AppData\Local\Temp\0517b0613e9bc016de8232847e25d92c_JaffaCakes118.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion | C:\Program Files (x86)\SYSTMEM.EXE | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\SYSTMEM.EXE | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\SYSTMEM.EXE | N/A |
Identifies Wine through registry keys
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000\Software\Wine | C:\Program Files (x86)\SYSTMEM.EXE | N/A |
| Key opened | \REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000\Software\Wine | C:\Users\Admin\AppData\Local\Temp\0517b0613e9bc016de8232847e25d92c_JaffaCakes118.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\0517b0613e9bc016de8232847e25d92c_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\0517b0613e9bc016de8232847e25d92c_JaffaCakes118.exe | N/A |
Windows security modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1" | C:\Program Files (x86)\SYSTMEM.EXE | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" | C:\Program Files (x86)\SYSTMEM.EXE | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Program Files (x86)\SYSTMEM.EXE | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" | C:\Program Files (x86)\SYSTMEM.EXE | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1" | C:\Program Files (x86)\SYSTMEM.EXE | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\SYSTMEM.EXE = "C:\\Program Files (x86)\\\\SYSTMEM.EXE" | C:\Users\Admin\AppData\Local\Temp\0517b0613e9bc016de8232847e25d92c_JaffaCakes118.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files (x86)\SYSTMEM.EXE | C:\Users\Admin\AppData\Local\Temp\0517b0613e9bc016de8232847e25d92c_JaffaCakes118.exe | N/A |
| File opened for modification | C:\Program Files (x86)\SYSTMEM.EXE | C:\Users\Admin\AppData\Local\Temp\0517b0613e9bc016de8232847e25d92c_JaffaCakes118.exe | N/A |
| File opened for modification | C:\Program Files (x86)\SYSTMEM.EXE | C:\Program Files (x86)\SYSTMEM.EXE | N/A |
| File created | C:\Program Files (x86)\SYSTMEM.EXE | C:\Program Files (x86)\SYSTMEM.EXE | N/A |
Modifies data under HKEY_USERS
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\.DEFAULT | C:\Program Files (x86)\SYSTMEM.EXE | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System | C:\Program Files (x86)\SYSTMEM.EXE | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableTaskMgr = "1" | C:\Program Files (x86)\SYSTMEM.EXE | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\System | C:\Program Files (x86)\SYSTMEM.EXE | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software | C:\Program Files (x86)\SYSTMEM.EXE | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft | C:\Program Files (x86)\SYSTMEM.EXE | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows | C:\Program Files (x86)\SYSTMEM.EXE | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion | C:\Program Files (x86)\SYSTMEM.EXE | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies | C:\Program Files (x86)\SYSTMEM.EXE | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\SYSTMEM.EXE | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Program Files (x86)\SYSTMEM.EXE | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2124 wrote to memory of 2788 | N/A | C:\Users\Admin\AppData\Local\Temp\0517b0613e9bc016de8232847e25d92c_JaffaCakes118.exe | C:\Program Files (x86)\SYSTMEM.EXE |
| PID 2124 wrote to memory of 2788 | N/A | C:\Users\Admin\AppData\Local\Temp\0517b0613e9bc016de8232847e25d92c_JaffaCakes118.exe | C:\Program Files (x86)\SYSTMEM.EXE |
| PID 2124 wrote to memory of 2788 | N/A | C:\Users\Admin\AppData\Local\Temp\0517b0613e9bc016de8232847e25d92c_JaffaCakes118.exe | C:\Program Files (x86)\SYSTMEM.EXE |
| PID 2124 wrote to memory of 2788 | N/A | C:\Users\Admin\AppData\Local\Temp\0517b0613e9bc016de8232847e25d92c_JaffaCakes118.exe | C:\Program Files (x86)\SYSTMEM.EXE |
Processes
C:\Users\Admin\AppData\Local\Temp\0517b0613e9bc016de8232847e25d92c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0517b0613e9bc016de8232847e25d92c_JaffaCakes118.exe"
C:\Program Files (x86)\SYSTMEM.EXE
"C:\Program Files (x86)\\SYSTMEM.EXE"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | mail.fucuzzy.com | udp |
| US | 8.8.8.8:53 | mail.TIKTIKZ.COM | udp |
| US | 8.8.8.8:53 | www.topgameland.com | udp |
| US | 8.8.8.8:53 | www.genesisstore.sk | udp |
| US | 8.8.8.8:53 | mail.fucuzzy.com | udp |
| US | 8.8.8.8:53 | mail.TIKTIKZ.COM | udp |
| US | 8.8.8.8:53 | www.topgameland.com | udp |
| US | 8.8.8.8:53 | www.genesisstore.sk | udp |
| US | 8.8.8.8:53 | mail.fucuzzy.com | udp |
| US | 8.8.8.8:53 | mail.TIKTIKZ.COM | udp |
| US | 8.8.8.8:53 | www.topgameland.com | udp |
| US | 8.8.8.8:53 | www.genesisstore.sk | udp |
| US | 8.8.8.8:53 | mail.fucuzzy.com | udp |
| US | 8.8.8.8:53 | mail.TIKTIKZ.COM | udp |
| US | 8.8.8.8:53 | www.topgameland.com | udp |
| US | 8.8.8.8:53 | www.genesisstore.sk | udp |
| US | 8.8.8.8:53 | mail.fucuzzy.com | udp |
| US | 8.8.8.8:53 | mail.TIKTIKZ.COM | udp |
| US | 8.8.8.8:53 | www.topgameland.com | udp |
Files
memory/2124-0-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2124-1-0x0000000000401000-0x000000000040E000-memory.dmp
memory/2124-2-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2124-4-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2124-3-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2124-7-0x0000000000400000-0x00000000005E4000-memory.dmp
C:\Program Files (x86)\SYSTMEM.EXE
| MD5 | 0517b0613e9bc016de8232847e25d92c |
| SHA1 | 8242dc29e7cf0dfcc003d516ea2519bb988f1331 |
| SHA256 | 511c0e53d4d823a3a916eb3e7c777f1d4f9d38f0da43af7cdaeb878f5108ae65 |
| SHA512 | b7107640651dbd3c229f8f17c45c8b2cd3146748b0f956a5813240658fcae4cdfab20766f613be1e5cc3713958d124f7e8d4da6c92d58674b6868e66f343f07d |
memory/2124-15-0x0000000004850000-0x0000000004A34000-memory.dmp
memory/2788-17-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2124-16-0x0000000004850000-0x0000000004A34000-memory.dmp
memory/2788-19-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2788-21-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2788-22-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2788-23-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2788-24-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2788-25-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2788-26-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2788-27-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2788-28-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2788-29-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2788-30-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2788-31-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2788-32-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2788-33-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2788-35-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2788-36-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2788-37-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2788-38-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2788-39-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2788-40-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2788-41-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2788-42-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2788-43-0x0000000000400000-0x00000000005E4000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-20 10:19
Reported
2024-06-20 10:22
Platform
win10v2004-20240508-en
Max time kernel
147s
Max time network
151s
Command Line
Signatures
Identifies Wine through registry keys
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Software\Wine | C:\Users\Admin\AppData\Local\Temp\0517b0613e9bc016de8232847e25d92c_JaffaCakes118.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\0517b0613e9bc016de8232847e25d92c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0517b0613e9bc016de8232847e25d92c_JaffaCakes118.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
Files
memory/1436-0-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/1436-1-0x0000000000400000-0x00000000005E4000-memory.dmp