Analysis Overview
SHA256
1c4d1b7d6eba4fc317664cfa42e77598a59bb0d98e6397e91d502556f4eae9cf
Threat Level: Known bad
The file 27778b028fcd6a87de7f7d040c82097c_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Modifies firewall policy service
MetaSploit
UPX packed file
Executes dropped EXE
Checks computer location settings
Loads dropped DLL
Deletes itself
Maps connected drives based on registry
Adds Run key to start application
Drops file in System32 directory
Suspicious use of SetThreadContext
Unsigned PE
Enumerates physical storage devices
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of UnmapMainImage
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-07-06 05:56
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-07-06 05:56
Reported
2024-07-06 05:59
Platform
win7-20240705-en
Max time kernel
148s
Max time network
150s
Command Line
Signatures
MetaSploit
Modifies firewall policy service
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpbk86.exe = "C:\\Windows\\SysWOW64\\wmpbk86.exe:*:Enabled:Windows Backup Service" | C:\Windows\SysWOW64\wmpbk86.exe | N/A |
| Key created | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List | C:\Windows\SysWOW64\wmpbk86.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpbk86.exe = "C:\\Windows\\SysWOW64\\wmpbk86.exe:*:Enabled:Windows Backup Service" | C:\Windows\SysWOW64\wmpbk86.exe | N/A |
| Key created | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List | C:\Windows\SysWOW64\wmpbk86.exe | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\wmpbk86.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\wmpbk86.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\wmpbk86.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\wmpbk86.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 |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Backup Service = "C:\\Windows\\SysWOW64\\wmpbk86.exe" | C:\Windows\SysWOW64\wmpbk86.exe | N/A |
Maps connected drives based on registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 | C:\Windows\SysWOW64\wmpbk86.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum | C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 | C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum | C:\Windows\SysWOW64\wmpbk86.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\ | C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\wmpbk86.exe | C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe | N/A |
| File created | C:\Windows\SysWOW64\wmpbk86.exe | C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\ | C:\Windows\SysWOW64\wmpbk86.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2692 set thread context of 2744 | N/A | C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe |
| PID 3044 set thread context of 2784 | N/A | C:\Windows\SysWOW64\wmpbk86.exe | C:\Windows\SysWOW64\wmpbk86.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\wmpbk86.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\wmpbk86.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe"
C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe"
C:\Windows\SysWOW64\wmpbk86.exe
"C:\Windows\SysWOW64\wmpbk86.exe" C:\Users\Admin\AppData\Local\Temp\27778B~1.EXE
C:\Windows\SysWOW64\wmpbk86.exe
"C:\Windows\SysWOW64\wmpbk86.exe" C:\Users\Admin\AppData\Local\Temp\27778B~1.EXE
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | xe-0-4-0.level4-co2-as30979.su | udp |
| US | 66.128.53.179:80 | tcp | |
| US | 66.128.53.179:80 | tcp | |
| DE | 195.137.213.67:80 | tcp | |
| DE | 195.137.213.67:80 | tcp | |
| US | 204.11.237.50:80 | tcp | |
| US | 204.11.237.50:80 | tcp |
Files
memory/2744-2-0x0000000000400000-0x000000000044C000-memory.dmp
memory/2744-3-0x0000000000400000-0x000000000044C000-memory.dmp
memory/2744-6-0x0000000000400000-0x000000000044C000-memory.dmp
memory/2744-7-0x0000000000400000-0x000000000044C000-memory.dmp
memory/2744-4-0x0000000000400000-0x000000000044C000-memory.dmp
memory/2744-0-0x0000000000400000-0x000000000044C000-memory.dmp
memory/2744-9-0x0000000000400000-0x000000000044C000-memory.dmp
memory/2744-8-0x0000000000400000-0x000000000044C000-memory.dmp
\Windows\SysWOW64\wmpbk86.exe
| MD5 | 27778b028fcd6a87de7f7d040c82097c |
| SHA1 | c32e909132b8d386b78aa537f775046d04268509 |
| SHA256 | 1c4d1b7d6eba4fc317664cfa42e77598a59bb0d98e6397e91d502556f4eae9cf |
| SHA512 | 2ff50fed8ca8a32aad175c426b1d57ac1b6728515c9cd9c616e277ef0ee403f0190b3432f8ed6ac13846a38c4a8a652cf552b92e5f14757c8de9f2509884514b |
memory/2744-31-0x0000000000400000-0x000000000044C000-memory.dmp
memory/2784-32-0x0000000000400000-0x000000000044C000-memory.dmp
memory/1192-35-0x00000000025B0000-0x00000000025B1000-memory.dmp
memory/1192-33-0x0000000003D40000-0x0000000003D5E000-memory.dmp
memory/2784-36-0x0000000000400000-0x000000000044C000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-07-06 05:56
Reported
2024-07-06 05:59
Platform
win10v2004-20240704-en
Max time kernel
149s
Max time network
151s
Command Line
Signatures
MetaSploit
Modifies firewall policy service
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications | C:\Windows\SysWOW64\wmpbk86.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpbk86.exe = "C:\\Windows\\SysWOW64\\wmpbk86.exe:*:Enabled:Windows Backup Service" | C:\Windows\SysWOW64\wmpbk86.exe | N/A |
| Key created | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List | C:\Windows\SysWOW64\wmpbk86.exe | N/A |
| Key created | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile | C:\Windows\SysWOW64\wmpbk86.exe | N/A |
| Key created | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications | C:\Windows\SysWOW64\wmpbk86.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpbk86.exe = "C:\\Windows\\SysWOW64\\wmpbk86.exe:*:Enabled:Windows Backup Service" | C:\Windows\SysWOW64\wmpbk86.exe | N/A |
| Key created | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List | C:\Windows\SysWOW64\wmpbk86.exe | N/A |
| Key created | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile | C:\Windows\SysWOW64\wmpbk86.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2494989678-839960665-2515455429-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\wmpbk86.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\wmpbk86.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\wmpbk86.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 |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Backup Service = "C:\\Windows\\SysWOW64\\wmpbk86.exe" | C:\Windows\SysWOW64\wmpbk86.exe | N/A |
Maps connected drives based on registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 | C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum | C:\Windows\SysWOW64\wmpbk86.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 | C:\Windows\SysWOW64\wmpbk86.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum | C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\wmpbk86.exe | C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe | N/A |
| File created | C:\Windows\SysWOW64\wmpbk86.exe | C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\ | C:\Windows\SysWOW64\wmpbk86.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\ | C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 916 set thread context of 1864 | N/A | C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe |
| PID 1952 set thread context of 1568 | N/A | C:\Windows\SysWOW64\wmpbk86.exe | C:\Windows\SysWOW64\wmpbk86.exe |
Enumerates physical storage devices
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ | C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\wmpbk86.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\wmpbk86.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\wmpbk86.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\wmpbk86.exe | N/A |
Suspicious use of UnmapMainImage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe"
C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe"
C:\Windows\SysWOW64\wmpbk86.exe
"C:\Windows\SysWOW64\wmpbk86.exe" C:\Users\Admin\AppData\Local\Temp\27778B~1.EXE
C:\Windows\SysWOW64\wmpbk86.exe
"C:\Windows\SysWOW64\wmpbk86.exe" C:\Users\Admin\AppData\Local\Temp\27778B~1.EXE
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 0.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 81.144.22.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | xe-0-4-0.level4-co2-as30979.su | udp |
| US | 66.128.53.179:80 | tcp | |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| DE | 195.137.213.67:80 | tcp | |
| US | 204.11.237.50:80 | tcp | |
| US | 8.8.8.8:53 | 73.144.22.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.236.111.52.in-addr.arpa | udp |
Files
memory/1864-0-0x0000000000400000-0x000000000044C000-memory.dmp
memory/1864-2-0x0000000000400000-0x000000000044C000-memory.dmp
memory/1864-3-0x0000000000400000-0x000000000044C000-memory.dmp
memory/1864-4-0x0000000000400000-0x000000000044C000-memory.dmp
C:\Windows\SysWOW64\wmpbk86.exe
| MD5 | 27778b028fcd6a87de7f7d040c82097c |
| SHA1 | c32e909132b8d386b78aa537f775046d04268509 |
| SHA256 | 1c4d1b7d6eba4fc317664cfa42e77598a59bb0d98e6397e91d502556f4eae9cf |
| SHA512 | 2ff50fed8ca8a32aad175c426b1d57ac1b6728515c9cd9c616e277ef0ee403f0190b3432f8ed6ac13846a38c4a8a652cf552b92e5f14757c8de9f2509884514b |
memory/1568-43-0x0000000000400000-0x000000000044C000-memory.dmp
memory/1864-44-0x0000000000400000-0x000000000044C000-memory.dmp
memory/1864-45-0x0000000000400000-0x0000000000429000-memory.dmp
memory/1568-46-0x0000000000400000-0x000000000044C000-memory.dmp
memory/1568-47-0x0000000000400000-0x000000000044C000-memory.dmp