Analysis Overview
SHA256
6f9b61794c9169a8860fb74e2cc0253b0bc283327b6485f799265f702a67c921
Threat Level: Known bad
The file CompatibilityCheck.exe was found to be: Known bad.
Malicious Activity Summary
Njrat family
njRAT/Bladabindi
Modifies Windows Firewall
Executes dropped EXE
Drops startup file
Checks computer location settings
Adds Run key to start application
Drops autorun.inf file
Enumerates physical storage devices
Unsigned PE
Checks SCSI registry key(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of SendNotifyMessage
Modifies registry class
Suspicious use of FindShellTrayWindow
Suspicious behavior: GetForegroundWindowSpam
Kills process with taskkill
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-27 20:23
Signatures
Njrat family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-27 20:23
Reported
2024-04-27 20:53
Platform
win10v2004-20240419-en
Max time kernel
1800s
Max time network
1801s
Command Line
Signatures
njRAT/Bladabindi
Modifies Windows Firewall
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\netsh.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3726321484-1950364574-433157660-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\CompatibilityCheck.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\e14109296e01cf24bb9b7f72f64c4cb3.exe | C:\ProgramData\COM Surrogate.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\e14109296e01cf24bb9b7f72f64c4cb3.exe | C:\ProgramData\COM Surrogate.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\COM Surrogate.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3726321484-1950364574-433157660-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\e14109296e01cf24bb9b7f72f64c4cb3 = "\"C:\\ProgramData\\COM Surrogate.exe\" .." | C:\ProgramData\COM Surrogate.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\e14109296e01cf24bb9b7f72f64c4cb3 = "\"C:\\ProgramData\\COM Surrogate.exe\" .." | C:\ProgramData\COM Surrogate.exe | N/A |
Drops autorun.inf file
| Description | Indicator | Process | Target |
| File created | C:\autorun.inf | C:\ProgramData\COM Surrogate.exe | N/A |
| File opened for modification | C:\autorun.inf | C:\ProgramData\COM Surrogate.exe | N/A |
| File created | D:\autorun.inf | C:\ProgramData\COM Surrogate.exe | N/A |
| File created | F:\autorun.inf | C:\ProgramData\COM Surrogate.exe | N/A |
| File opened for modification | F:\autorun.inf | C:\ProgramData\COM Surrogate.exe | N/A |
Enumerates physical storage devices
Checks SCSI registry key(s)
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000 | C:\Windows\system32\taskmgr.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A | C:\Windows\system32\taskmgr.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName | C:\Windows\system32\taskmgr.exe | N/A |
Kills process with taskkill
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-3726321484-1950364574-433157660-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell | C:\Windows\system32\taskmgr.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3726321484-1950364574-433157660-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU | C:\Windows\system32\taskmgr.exe | N/A |
| Set value (data) | \REGISTRY\USER\S-1-5-21-3726321484-1950364574-433157660-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots | C:\Windows\system32\taskmgr.exe | N/A |
| Set value (data) | \REGISTRY\USER\S-1-5-21-3726321484-1950364574-433157660-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff | C:\Windows\system32\taskmgr.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3726321484-1950364574-433157660-1000_Classes\Local Settings | C:\Windows\system32\taskmgr.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\COM Surrogate.exe | N/A |
| N/A | N/A | C:\Windows\system32\taskmgr.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\CompatibilityCheck.exe
"C:\Users\Admin\AppData\Local\Temp\CompatibilityCheck.exe"
C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\Desktop\CloseEdit.vbe"
C:\ProgramData\COM Surrogate.exe
"C:\ProgramData\COM Surrogate.exe"
C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\ProgramData\COM Surrogate.exe" "COM Surrogate.exe" ENABLE
C:\Windows\SysWOW64\taskkill.exe
taskkill /F /IM SecHealthUI.exe
C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /4
C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | green-morrison.gl.at.ply.gg | udp |
Files
memory/1428-0-0x0000000074BA0000-0x0000000075151000-memory.dmp
memory/1428-1-0x0000000074BA0000-0x0000000075151000-memory.dmp
memory/1428-2-0x00000000012A0000-0x00000000012B0000-memory.dmp
C:\ProgramData\COM Surrogate.exe
| MD5 | 0c84829a79c06e88510607526990391e |
| SHA1 | 63970a42f5b779c1f0f8d95d493317917b0bd46d |
| SHA256 | 6f9b61794c9169a8860fb74e2cc0253b0bc283327b6485f799265f702a67c921 |
| SHA512 | 85638191fee2b456e601487aff23bc5dccbfd24e74970e5f1d8fbdad633a3d31208887f682debf1fd2abcec6e36c50e74b6da30c660dfa0bc0471e7ef8c98f40 |
memory/3032-13-0x0000000001530000-0x0000000001540000-memory.dmp
memory/3032-12-0x0000000074BA0000-0x0000000075151000-memory.dmp
memory/1428-14-0x0000000074BA0000-0x0000000075151000-memory.dmp
memory/4636-24-0x000002590D650000-0x000002590D651000-memory.dmp
memory/4636-26-0x000002590D650000-0x000002590D651000-memory.dmp
memory/4636-25-0x000002590D650000-0x000002590D651000-memory.dmp
memory/4636-36-0x000002590D650000-0x000002590D651000-memory.dmp
memory/4636-35-0x000002590D650000-0x000002590D651000-memory.dmp
memory/4636-34-0x000002590D650000-0x000002590D651000-memory.dmp
memory/4636-33-0x000002590D650000-0x000002590D651000-memory.dmp
memory/4636-32-0x000002590D650000-0x000002590D651000-memory.dmp
memory/4636-31-0x000002590D650000-0x000002590D651000-memory.dmp
memory/4636-30-0x000002590D650000-0x000002590D651000-memory.dmp
memory/3032-37-0x0000000074BA0000-0x0000000075151000-memory.dmp
memory/3032-38-0x0000000001530000-0x0000000001540000-memory.dmp