General
- Target ede9f684-6985-898b-3f80f312d1b0
- Size 93KB
- Sample260928-hbvavaxt7k
- SHA256 4f5bac3b97c74c8eaaf443b1aa0c2d3d28c5589b1eedcd79074cfdb45a221ba7
- MD5 6b10fa76805dfa2bc5196a5c30567163
- SHA1 b0c11c188421f83b4698161c043da0ed22d9a7ff
- SHA512 93a3a9c113dce11fff3ba030cc5a12976d41a09845282c2848772740174553beaa1ff1662b62190c0ff85f620a75dfa86ac7ae955a3b8754361c6f39b4624b88
- SSDEEP 1536:be1FJGsdpjk0oNuPtgtQCTpnF9Q90adz4zcpNpfO+GL1jfrwNdr9/qSw7ieYi:bkF8spjPyuP+JpF9Q9Pz4zWOL1jfUnlu
- TLSH T1F59323053B8C95E010CDDDBE0FC06CA956AEE072D3DADC9C66CF5A84AB43AFA459C474
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
ede9f684-6985-898b-3f80f312d1b0.ps1
Resource
win10v2004-20260911-en
Behavioral task
behavioral2
Sample
ede9f684-6985-898b-3f80f312d1b0.ps1
Resource
win11ltsc2024-20260911-en
Malware Config
Extracted
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acrstealer
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4.4.3-alpha1
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releases.mosswood.cc
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cloudflare.com
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ddrs
https://telegra.ph/Built-in-Types-08-01
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guids
019fd851-d0e2-7805-ae09-2dd1daa78960
f1575b64-8492-4e8b-b102-4d26e8c70371
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user_agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.2.6187.130 Safari/537.36
Targets
-
- Target ede9f684-6985-898b-3f80f312d1b0
- Size 93KB
- SHA256 4f5bac3b97c74c8eaaf443b1aa0c2d3d28c5589b1eedcd79074cfdb45a221ba7
- MD5 6b10fa76805dfa2bc5196a5c30567163
- SHA1 b0c11c188421f83b4698161c043da0ed22d9a7ff
- SHA512 93a3a9c113dce11fff3ba030cc5a12976d41a09845282c2848772740174553beaa1ff1662b62190c0ff85f620a75dfa86ac7ae955a3b8754361c6f39b4624b88
- SSDEEP 1536:be1FJGsdpjk0oNuPtgtQCTpnF9Q90adz4zcpNpfO+GL1jfrwNdr9/qSw7ieYi:bkF8spjPyuP+JpF9Q9Pz4zWOL1jfUnlu
- TLSH T1F59323053B8C95E010CDDDBE0FC06CA956AEE072D3DADC9C66CF5A84AB43AFA459C474
- MD5 SHA1 SHA512 SSDEEP TLSH
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Detects SectopRAT aka Arechclient2
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Family: ACR stealer,GrMsk
ACR stealer (aka GrMsk stealer) is an infostealer written in C++.
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Suspicious use of NtCreateUserProcessOtherParentProcess
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Badlisted process makes network request
Network request originating from process or tool commonly abused by malware.
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Executes dropped EXE
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Registers new Windows logon scripts automatically executed at logon.
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Accesses cryptocurrency files/wallets, possible credential harvesting
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Adds Run key to start application
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Contacts third-party web service commonly abused for C2
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Suspicious use of SetThreadContext
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Boot or Logon Initialization Scripts
1Logon Script (Windows)
1Privilege Escalation
Access Token Manipulation
1Parent PID Spoofing
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Boot or Logon Initialization Scripts
1Logon Script (Windows)
1Process Injection
1Defense Evasion
Access Token Manipulation
1Parent PID Spoofing
1Modify Registry
1Process Injection
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
3Credentials In Files
3