General
- Target SETUP.zip
- Size 24.4MB
- Sample261031-2243hs1tbs
- SHA256 30e6f65380198bd4d49227d780f19a01d297aa8ed7ae643167e490f5e7b8fca5
- MD5 9dfc29fcbae3f85a932141966378f274
- SHA1 ba3b01c90d517eaa3b59c8ca730d94290ddefd4f
- SHA512 d04186fb93bbd8f96761286e3f6a5d244ed01d86f8c2730522a408fb669712bd20f8fa2fbe628eb14db31eff5fca09c885814a3469fd9b15588a9b32e8269853
- SSDEEP 786432:qotJpzs4vIBOmJPj1j/FVs4vbRos4vzRJ:qo9nvsxRVnvbGnvzRJ
- TLSH T15C47236CB8B5B84AF5D0537BC6C52CBAEB2CE541D7E93C9B8E2440467D8310E4F6AC61
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
Setup.exe
Resource
win10v2004-20260911-en
Behavioral task
behavioral2
Sample
Setup.exe
Resource
win10ltsc2021-20260911-en
Behavioral task
behavioral3
Sample
Setup.exe
Resource
win11-20260911-en
Behavioral task
behavioral4
Sample
Setup.exe
Resource
win11ltsc2024-20260911-en
Malware Config
Extracted
-
acrstealer
-
4.5.3-alpha1
-
cachefly.net
-
data.wickenhollow.cc
-
guids
f1575b64-8492-4e8b-b102-4d26e8c70371
01a03549-2b37-7674-afe7-d0ce54b13db8
-
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
Extracted
-
acrstealer
Targets
-
- Target Setup.exe
- Size 94KB
- SHA256 8c1b9b8e72264e27253a7cc14d6f9a560a127ebd9f8bcec81faba94710c19a47
- MD5 eba77a34e9b8aa78fce520d1431fc68b
- SHA1 215105e2640cd6da8adc1ea9ddafeb08c4d50f9b
- SHA512 fa66a42dd71fc862c218777b572f143144a7de0c5d8630061a554e6ebb9ad4557d810e7ca75598254231cb41dec2391c49a362206b8275742b5a5b92ee33417f
- SSDEEP 1536:ZaakYDoIhIxHHWMpdPa5wiE21M8kJIGFvb1Cw3/73sJxy+C:FDpSwMpdCq/IM8uIGfN/73sJTC
- TLSH T1A593D541E62DBDDDE508D4310A75E0F25E24EC3176C0A51EA7F37F0629726A3F90A93A
- MD5 SHA1 SHA512 SSDEEP TLSH
Detects SectopRAT aka Arechclient2
Family: ACR stealer,GrMsk
ACR stealer (aka GrMsk stealer) is an infostealer written in C++.
Suspicious use of NtCreateUserProcessOtherParentProcess
Badlisted process makes network request
Network request originating from process or tool commonly abused by malware.
Registers new Windows logon scripts automatically executed at logon.
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
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
1