Analysis Overview
SHA256
2cc89fa3dc1b4a107694aae6de5c6211724bcb02f4a15ade957d1382915dced5
Threat Level: Known bad
The file 126d45710a48006d4e8d3c13a96a5b97_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Modifies WinLogon for persistence
Disables Task Manager via registry modification
UPX packed file
Checks computer location settings
Impair Defenses: Safe Mode Boot
Unsigned PE
Enumerates physical storage devices
Kills process with taskkill
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-26 15:13
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
2024-06-26 15:13
Reported
2024-06-26 15:15
Platform
win7-20240508-en
Max time kernel
140s
Max time network
121s
Command Line
Signatures
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\126d45710a48006d4e8d3c13a96a5b97_JaffaCakes118.exe\"" | C:\Users\Admin\AppData\Local\Temp\126d45710a48006d4e8d3c13a96a5b97_JaffaCakes118.exe | N/A |
Disables Task Manager via registry modification
Impair Defenses: Safe Mode Boot
| Description | Indicator | Process | Target |
| Key deleted | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\WinDefend | C:\Users\Admin\AppData\Local\Temp\126d45710a48006d4e8d3c13a96a5b97_JaffaCakes118.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\ProfSvc | C:\Users\Admin\AppData\Local\Temp\126d45710a48006d4e8d3c13a96a5b97_JaffaCakes118.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\Power | C:\Users\Admin\AppData\Local\Temp\126d45710a48006d4e8d3c13a96a5b97_JaffaCakes118.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 |
Enumerates physical storage devices
Kills process with taskkill
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1904 wrote to memory of 2748 | N/A | C:\Users\Admin\AppData\Local\Temp\126d45710a48006d4e8d3c13a96a5b97_JaffaCakes118.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 1904 wrote to memory of 2748 | N/A | C:\Users\Admin\AppData\Local\Temp\126d45710a48006d4e8d3c13a96a5b97_JaffaCakes118.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 1904 wrote to memory of 2748 | N/A | C:\Users\Admin\AppData\Local\Temp\126d45710a48006d4e8d3c13a96a5b97_JaffaCakes118.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 1904 wrote to memory of 2748 | N/A | C:\Users\Admin\AppData\Local\Temp\126d45710a48006d4e8d3c13a96a5b97_JaffaCakes118.exe | C:\Windows\SysWOW64\taskkill.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\126d45710a48006d4e8d3c13a96a5b97_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\126d45710a48006d4e8d3c13a96a5b97_JaffaCakes118.exe"
C:\Windows\SysWOW64\taskkill.exe
"C:\Windows\System32\taskkill.exe" /f /im explorer.exe
Network
Files
memory/1904-1-0x00000000001B0000-0x00000000001B2000-memory.dmp
memory/1904-0-0x0000000000400000-0x000000000045B000-memory.dmp
memory/1904-2-0x0000000000400000-0x000000000045B000-memory.dmp
memory/1904-3-0x0000000000400000-0x000000000045B000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-26 15:13
Reported
2024-06-26 15:15
Platform
win10v2004-20240611-en
Max time kernel
141s
Max time network
152s
Command Line
Signatures
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\126d45710a48006d4e8d3c13a96a5b97_JaffaCakes118.exe\"" | C:\Users\Admin\AppData\Local\Temp\126d45710a48006d4e8d3c13a96a5b97_JaffaCakes118.exe | N/A |
Disables Task Manager via registry modification
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3665033694-1447845302-680750983-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\126d45710a48006d4e8d3c13a96a5b97_JaffaCakes118.exe | N/A |
Impair Defenses: Safe Mode Boot
| Description | Indicator | Process | Target |
| Key deleted | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\SerCx2.sys | C:\Users\Admin\AppData\Local\Temp\126d45710a48006d4e8d3c13a96a5b97_JaffaCakes118.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\ProfSvc | C:\Users\Admin\AppData\Local\Temp\126d45710a48006d4e8d3c13a96a5b97_JaffaCakes118.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\Power | C:\Users\Admin\AppData\Local\Temp\126d45710a48006d4e8d3c13a96a5b97_JaffaCakes118.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\iai2c.sys | C:\Users\Admin\AppData\Local\Temp\126d45710a48006d4e8d3c13a96a5b97_JaffaCakes118.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\CBDHSvc | C:\Users\Admin\AppData\Local\Temp\126d45710a48006d4e8d3c13a96a5b97_JaffaCakes118.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\UserManager | C:\Users\Admin\AppData\Local\Temp\126d45710a48006d4e8d3c13a96a5b97_JaffaCakes118.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 |
Enumerates physical storage devices
Kills process with taskkill
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2352 wrote to memory of 2584 | N/A | C:\Users\Admin\AppData\Local\Temp\126d45710a48006d4e8d3c13a96a5b97_JaffaCakes118.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 2352 wrote to memory of 2584 | N/A | C:\Users\Admin\AppData\Local\Temp\126d45710a48006d4e8d3c13a96a5b97_JaffaCakes118.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 2352 wrote to memory of 2584 | N/A | C:\Users\Admin\AppData\Local\Temp\126d45710a48006d4e8d3c13a96a5b97_JaffaCakes118.exe | C:\Windows\SysWOW64\taskkill.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\126d45710a48006d4e8d3c13a96a5b97_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\126d45710a48006d4e8d3c13a96a5b97_JaffaCakes118.exe"
C:\Windows\SysWOW64\taskkill.exe
"C:\Windows\System32\taskkill.exe" /f /im explorer.exe
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4440,i,8998666007764333392,14724298544432336038,262144 --variations-seed-version --mojo-platform-channel-handle=4132 /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 13.107.21.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 237.21.107.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 89.90.14.23.in-addr.arpa | udp |
| BE | 2.17.107.128:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 183.142.211.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 128.107.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 107.12.20.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| IE | 52.111.236.22:443 | tcp | |
| US | 8.8.8.8:53 | 80.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 82.90.14.23.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 | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 10.28.171.150.in-addr.arpa | udp |
Files
memory/2352-0-0x0000000000400000-0x000000000045B000-memory.dmp
memory/2352-1-0x0000000001F20000-0x0000000001F22000-memory.dmp
memory/2352-2-0x0000000000400000-0x000000000045B000-memory.dmp
memory/2352-3-0x0000000000400000-0x000000000045B000-memory.dmp