General
- Target Client.exe
- Size 603KB
- Sample260712-nykb2shs2j
- SHA256 61e49b58e93247422cfa6e7ae6b16fffbe4ae4e8519b90abe549235a36f6244d
- MD5 68a5e697c1d271051d8810025d7916d9
- SHA1 90ad2ece1235f808fc19ea7888f615b7f51c2eda
- SHA512 ecb8cc5ae25202ca073ca108318ee5d33bf28cd39f6b9c035fc4df35924ed6edd0576a7d953f5b638ac519059ffe40783a1e5c6ae2492e02b94ea7f871818dfa
- SSDEEP 12288:YrJqSJbONYHCyuPVle8snOt+XR0wfgoivl:Y8SJbONGCybo2R0Uq
- TLSH T15DD4B30CFE91F804DE1A3DB7CFE911105B7165C1AE1196423109AFFE8B663B289E667C
- MD5 SHA1 SHA512 SSDEEP TLSH
Behavioral task
behavioral1
Sample
Client.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
Client.exe
Resource
win11ltsc2024-20260709-en
Malware Config
Extracted
-
sheetrat
-
2.6
-
Sheet_tcwjcmmwqyakvk
-
134.249.168.198:5504
Targets
-
- Target Client.exe
- Size 603KB
- SHA256 61e49b58e93247422cfa6e7ae6b16fffbe4ae4e8519b90abe549235a36f6244d
- MD5 68a5e697c1d271051d8810025d7916d9
- SHA1 90ad2ece1235f808fc19ea7888f615b7f51c2eda
- SHA512 ecb8cc5ae25202ca073ca108318ee5d33bf28cd39f6b9c035fc4df35924ed6edd0576a7d953f5b638ac519059ffe40783a1e5c6ae2492e02b94ea7f871818dfa
- SSDEEP 12288:YrJqSJbONYHCyuPVle8snOt+XR0wfgoivl:Y8SJbONGCybo2R0Uq
- TLSH T15DD4B30CFE91F804DE1A3DB7CFE911105B7165C1AE1196423109AFFE8B663B289E667C
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Detects Sheetrat obfuscated V1.8 and higher
Sheetrat aka NonEuclid RAT is a trojan written in C#.
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Modifies WinLogon for persistence
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Disables Task Manager via registry modification
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Disables cmd.exe use via registry modification
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Event Triggered Execution: AppInit DLLs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
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Executes dropped EXE
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Loads dropped DLL
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Accesses Microsoft Outlook profiles
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Adds Run key to start application
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Event Triggered Execution
1AppInit DLLs
1Scheduled Task/Job
1Scheduled Task
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1