Resubmissions
03/02/2025, 21:57
250203-1t5hmsvmat 1003/02/2025, 04:37
250203-e896saslgn 1031/01/2025, 18:35
250131-w8gmxatmc1 10Analysis
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max time kernel
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max time network
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platform
windows10-ltsc 2021_x64 -
resource
win10ltsc2021-20250128-en -
resource tags
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submitted
03/02/2025, 21:57
General
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Target
bazaar.2020.02/Trojan.MSIL.Disfa.exe
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Size
23KB
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MD5
e1e660fdfba985128d7a1e78a4365082
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SHA1
4559a30780ffbe95282988c7710ae5dedd758d0d
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SHA256
f710f839c4211f980cb6f2c2ba51e28eda20891810e5a57ac395bf467ff6fedf
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SHA512
d2dd0a8812419e01e5b9bc34c2ad5fd848c347af3512d573bddf95aec87d80a9c5b5f991e6345a33d6f555d4582a8121d468fa2d5ddc6d41bf7d8c7bab242509
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SSDEEP
384:CzmicUDPiJUQrlRGSHCYlbY6ZgvSMBTtxmRvR6JZlbw8hqIusZzZWJ:OpD2btHxRpcnuh
Malware Config
Signatures
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Njrat family
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njRAT/Bladabindi
Widely used RAT written in .NET.
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Modifies Windows Firewall 2 TTPs 1 IoCs
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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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 physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs
Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.
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System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
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Suspicious use of AdjustPrivilegeToken 35 IoCs
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Suspicious use of WriteProcessMemory 6 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\bazaar.2020.02\Trojan.MSIL.Disfa.exe"C:\Users\Admin\AppData\Local\Temp\bazaar.2020.02\Trojan.MSIL.Disfa.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Windows audio device isolation.exe"C:\Users\Admin\AppData\Local\Temp\Windows audio device isolation.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Windows audio device isolation.exe" "Windows audio device isolation.exe" ENABLE3⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Defense Evasion
Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
1Replay Monitor
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Downloads
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Filesize
23KB
MD5e1e660fdfba985128d7a1e78a4365082
SHA14559a30780ffbe95282988c7710ae5dedd758d0d
SHA256f710f839c4211f980cb6f2c2ba51e28eda20891810e5a57ac395bf467ff6fedf
SHA512d2dd0a8812419e01e5b9bc34c2ad5fd848c347af3512d573bddf95aec87d80a9c5b5f991e6345a33d6f555d4582a8121d468fa2d5ddc6d41bf7d8c7bab242509
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Filesize
5.7MB
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Filesize
5.7MB
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Filesize
5.7MB
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Filesize
4KB
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Filesize
5.7MB
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Filesize
5.7MB
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Filesize
5.7MB