General
- Target Client.exe
- Size 684KB
- Sample260713-znw4msgv2l
- SHA256 43d353cf8f0997057113b0d1146728b3cd2e0ba7affa6db4acbd90397ad6c93f
- MD5 6c9a75a71235f3be8b51a1a21121373e
- SHA1 e821e45871d588c26bdc2257a2cdbef754d12fe2
- SHA512 6f86b18b0da065e2c9a3874fb102a29809557899369132457fc48c4c96c3277ab3434d667fe6ad81de3a7e32e8b4b9c2ed48b1fd07d6e0c2838a6a0c4d96ca77
- SSDEEP 6144:hVkzWxRH/oBndwKt4rv+ATN1qT3r209eVvvF8HNnLzeSb9rUEL5FN6WJBDAkALyD:Ako35yr2I23S7wnLCyrb/Ws+dWfNw
- TLSH T1DCE4930CFD51F815CE2E3DB38BE2A5A11B7110C23E229116370B5FFA9B543B659A217D
- MD5 SHA1 SHA512 SSDEEP TLSH
Behavioral task
behavioral1
Sample
Client.exe
Resource
win10v2004-20260513-en
13 signatures
150 seconds
Behavioral task
behavioral2
Sample
Client.exe
Resource
win11ltsc2024-20260709-en
13 signatures
150 seconds
Malware Config
Extracted
Family
-
sheetrat
Version
-
2.6.4
Campaign
-
Sheet_wvnkneyyxn
C2
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k32tgg-45688.portmap.host:45688
Targets
-
- Target Client.exe
- Size 684KB
- SHA256 43d353cf8f0997057113b0d1146728b3cd2e0ba7affa6db4acbd90397ad6c93f
- MD5 6c9a75a71235f3be8b51a1a21121373e
- SHA1 e821e45871d588c26bdc2257a2cdbef754d12fe2
- SHA512 6f86b18b0da065e2c9a3874fb102a29809557899369132457fc48c4c96c3277ab3434d667fe6ad81de3a7e32e8b4b9c2ed48b1fd07d6e0c2838a6a0c4d96ca77
- SSDEEP 6144:hVkzWxRH/oBndwKt4rv+ATN1qT3r209eVvvF8HNnLzeSb9rUEL5FN6WJBDAkALyD:Ako35yr2I23S7wnLCyrb/Ws+dWfNw
- TLSH T1DCE4930CFD51F815CE2E3DB38BE2A5A11B7110C23E229116370B5FFA9B543B659A217D
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Detects Sheetrat obfuscated V1.8 and higher
Sheetrat aka NonEuclid RAT is a trojan written in C#.
-
Modifies WinLogon for persistence
-
Event Triggered Execution: AppInit DLLs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
-
Executes dropped EXE
-
Loads dropped DLL
-
Adds Run key to start application
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Event Triggered Execution
1AppInit DLLs
1Scheduled Task/Job
1Scheduled Task
1