Analysis
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max time kernel
1049s -
max time network
1045s -
platform
windows10-1703_x64 -
resource
win10-20240221-en -
resource tags
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submitted
02-03-2024 19:50
General
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Target
Server.exe
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Size
37KB
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MD5
b3d12b297a856103adb57f5492cd6851
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SHA1
2a6ebc4e929ed73ecc3720ae01d3d16e8f7b6089
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SHA256
83b66e30244b1729ebbaf9f0921fd51c0337e638665fa1ab01e8d8237a7fe80c
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SHA512
54d38f293feb0cb43dbcd9c8ac3b787e087ce471ced0a0ce7aa72a24d43acdf4d5210633832a68def43fd5c6561069353fdb6eb29ced28cbebbf27c302481cb8
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SSDEEP
384:b1tcaCisx/WRdL5kyc/Tant5ngCmxorAF+rMRTyN/0L+EcoinblneHQM3epzXCNV:RtcmD5nc/TaPNmyrM+rMRa8Nucpt
Malware Config
Extracted
njrat
im523
4elsnurikom
6.tcp.eu.ngrok.io:12125
c52f1e45400f62b1c170da017d840dd6
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reg_key
c52f1e45400f62b1c170da017d840dd6
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splitter
|'|'|
Signatures
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njRAT/Bladabindi
Widely used RAT written in .NET.
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Disables Task Manager via registry modification
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Modifies Windows Firewall 2 TTPs 1 IoCs
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Drops startup file 2 IoCs
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Executes dropped EXE 1 IoCs
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Adds Run key to start application 2 TTPs 2 IoCs
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Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
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Legitimate hosting services abused for malware hosting/C2 1 TTPs 17 IoCs
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Drops autorun.inf file 1 TTPs 5 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies registry class 1 IoCs
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Suspicious behavior: AddClipboardFormatListener 1 IoCs
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious behavior: GetForegroundWindowSpam 2 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
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Suspicious use of FindShellTrayWindow 25 IoCs
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Suspicious use of SendNotifyMessage 8 IoCs
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Suspicious use of SetWindowsHookEx 4 IoCs
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Suspicious use of WriteProcessMemory 8 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Server.exe"C:\Users\Admin\AppData\Local\Temp\Server.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\svhost.exe"C:\Users\Admin\AppData\Roaming\svhost.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Enumerates connected drives
- Drops autorun.inf file
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\svhost.exe" "svhost.exe" ENABLE3⤵
- Modifies Windows Firewall
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C:\Program Files\VideoLAN\VLC\vlc.exe"C:\Program Files\VideoLAN\VLC\vlc.exe" --started-from-file "C:\Users\Admin\AppData\Local\Temp\tmp9E3A.tmp.mp4"3⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x3f81⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Defense Evasion
Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2.1MB
MD5e500ade62194de912397d1ff9e5ccdb4
SHA1b07be605bff0014198b9f70566559fa1c076d4bc
SHA25694852ff8c355d18981e87f7fc25146af5ad0df9303e4d634684b924b6c48581d
SHA512766999d2c878bd4a8ef4b6caf521bd0cca73c4a22b05216ef4291a5aefd4f1598e2ad9db0f6bc993c1096ac025b387467c7bb8c542d54681c39f64177feb1cca
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Filesize
37KB
MD5b3d12b297a856103adb57f5492cd6851
SHA12a6ebc4e929ed73ecc3720ae01d3d16e8f7b6089
SHA25683b66e30244b1729ebbaf9f0921fd51c0337e638665fa1ab01e8d8237a7fe80c
SHA51254d38f293feb0cb43dbcd9c8ac3b787e087ce471ced0a0ce7aa72a24d43acdf4d5210633832a68def43fd5c6561069353fdb6eb29ced28cbebbf27c302481cb8
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Filesize
5.7MB
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Filesize
64KB
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Filesize
5.7MB
-
Filesize
5.7MB
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Filesize
64KB
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Filesize
5.7MB
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Filesize
5.7MB
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Filesize
5.7MB
-
Filesize
64KB
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Filesize
64KB
-
Filesize
64KB
-
Filesize
992KB
-
Filesize
208KB
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Filesize
2.7MB
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Filesize
96KB
-
Filesize
92KB
-
Filesize
68KB
-
Filesize
116KB
-
Filesize
2.0MB
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Filesize
252KB
-
Filesize
108KB
-
Filesize
96KB
-
Filesize
192KB
-
Filesize
412KB
-
Filesize
68KB
-
Filesize
68KB
-
Filesize
68KB
-
Filesize
68KB
-
Filesize
96KB
-
Filesize
132KB
-
Filesize
68KB
-
Filesize
68KB
-
Filesize
92KB
-
Filesize
16.7MB
-
Filesize
444KB
-
Filesize
344KB
-
Filesize
1.5MB
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Filesize
1.4MB
-
Filesize
92KB
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Filesize
1.4MB
-
Filesize
348KB
-
Filesize
304KB
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Filesize
2.3MB
-
Filesize
264KB
-
Filesize
72KB
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Filesize
68KB
-
Filesize
188KB
-
Filesize
88KB
-
Filesize
392KB
-
Filesize
76KB
-
Filesize
80KB
-
Filesize
192KB
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Filesize
2.1MB
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Filesize
84KB
-
Filesize
84KB
-
Filesize
976KB
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Filesize
168KB
-
Filesize
76KB
-
Filesize
108KB
-
Filesize
84KB
-
Filesize
72KB
-
Filesize
80KB
-
Filesize
76KB
-
Filesize
84KB
-
Filesize
72KB
-
Filesize
76KB
-
Filesize
140KB
-
Filesize
756KB
-
Filesize
320KB
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Filesize
436KB
-
Filesize
468KB
-
Filesize
68KB
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Filesize
64KB
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Filesize
788KB
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Filesize
23.7MB