Analysis
- max time kernel
149s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
03/09/2026, 13:34
General
- Target Setup.exe
- Size 10.5MB
- Sample260903-qvba3syalg
- SHA256 72208131742dbaf6871f648e297a054c8ad58cd318e4391772cdf4db34989a39
Malware Config
Extracted
-
acrstealer
-
4.3.8-alpha2
-
sync.canyonmere.cc
-
cdnjs.cloudflare.com
-
ddrs
https://telegra.ph/C-Introduction-08-21
-
guids
01a034f4-51c1-7e0e-a650-137d7032a680
f1575b64-8492-4e8b-b102-4d26e8c70371
-
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
Signatures
- Family: ACR stealer,GrMsk
ACR stealer (aka GrMsk stealer) is an infostealer written in C++.
- Detects ACRStealer V4.x 13 IoCs
- Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
- Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Modifies registry class 1 IoCs
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 7 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Setup.exe"C:\Users\Admin\AppData\Local\Temp\Setup.exe"1⤵
- Enumerates connected drives
- Suspicious use of SetThreadContext
- Modifies registry class
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Program Files (x86)\Windows Mail\wab.exe"C:\Program Files (x86)\Windows Mail\wab.exe"2⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
memory/1204-60-0x0000000000840000-0x00000000013AB000-memory.dmp
memory/1204-61-0x0000000000840000-0x00000000013AB000-memory.dmp
memory/1204-136-0x0000000000840000-0x00000000013AB000-memory.dmp
memory/1204-8-0x000001D2FB020000-0x000001D2FB021000-memory.dmp
memory/1204-135-0x0000000000840000-0x00000000013AB000-memory.dmp
memory/1204-62-0x0000000000840000-0x00000000013AB000-memory.dmp
memory/1204-134-0x0000000000840000-0x00000000013AB000-memory.dmp
memory/1204-14-0x0000000000840000-0x00000000013AB000-memory.dmp
memory/1204-133-0x0000000000840000-0x00000000013AB000-memory.dmp
memory/1204-131-0x0000000000840000-0x00000000013AB000-memory.dmp
memory/1204-130-0x0000000000840000-0x00000000013AB000-memory.dmp
memory/1204-129-0x0000000000840000-0x00000000013AB000-memory.dmp
memory/1204-49-0x0000000000840000-0x00000000013AB000-memory.dmp
memory/1204-126-0x0000000000840000-0x00000000013AB000-memory.dmp
memory/1204-56-0x0000000000840000-0x00000000013AB000-memory.dmp
memory/1204-57-0x0000000000840000-0x00000000013AB000-memory.dmp
memory/1204-58-0x0000000000840000-0x00000000013AB000-memory.dmp
memory/1204-59-0x0000000000840000-0x00000000013AB000-memory.dmp
memory/1204-137-0x0000000000840000-0x00000000013AB000-memory.dmp
memory/1204-124-0x0000000000840000-0x00000000013AB000-memory.dmp
memory/1204-11-0x000000000085D000-0x000000000085E000-memory.dmp
memory/1204-63-0x0000000000840000-0x00000000013AB000-memory.dmp
memory/1204-64-0x0000000000840000-0x00000000013AB000-memory.dmp
memory/1204-65-0x0000000000840000-0x00000000013AB000-memory.dmp
memory/1204-66-0x0000000000840000-0x00000000013AB000-memory.dmp
memory/1204-67-0x0000000000840000-0x00000000013AB000-memory.dmp
memory/1204-68-0x0000000000840000-0x00000000013AB000-memory.dmp
memory/1204-69-0x0000000000840000-0x00000000013AB000-memory.dmp
memory/1204-70-0x0000000000840000-0x00000000013AB000-memory.dmp
memory/1204-72-0x000001D2FB020000-0x000001D2FB021000-memory.dmp
memory/1204-71-0x0000000000840000-0x00000000013AB000-memory.dmp
memory/1204-73-0x0000000000840000-0x00000000013AB000-memory.dmp
memory/1204-74-0x0000000000840000-0x00000000013AB000-memory.dmp
memory/1204-75-0x0000000000840000-0x00000000013AB000-memory.dmp
memory/1204-76-0x0000000000840000-0x00000000013AB000-memory.dmp
memory/1204-77-0x0000000000840000-0x00000000013AB000-memory.dmp
memory/1204-125-0x0000000000840000-0x00000000013AB000-memory.dmp
memory/2452-46-0x00000000004C0000-0x000000000058B000-memory.dmp
memory/2452-121-0x00000000004C0000-0x000000000058B000-memory.dmp
memory/2452-79-0x00000000004C0000-0x000000000058B000-memory.dmp
memory/2452-52-0x00000000004C0000-0x000000000058B000-memory.dmp
memory/2452-128-0x00000000004C0000-0x000000000058B000-memory.dmp
memory/2452-0-0x00000000004C0000-0x000000000058B000-memory.dmp
memory/2452-3-0x00000000004C0000-0x000000000058B000-memory.dmp
memory/2452-12-0x00000000004C0000-0x000000000058B000-memory.dmp
memory/2452-13-0x00000000004C0000-0x000000000058B000-memory.dmp
memory/2452-2-0x00000000004C0000-0x000000000058B000-memory.dmp
memory/2452-6-0x00000000004C0000-0x000000000058B000-memory.dmp
memory/2452-7-0x00000000004C0000-0x000000000058B000-memory.dmp
memory/2452-4-0x00000000004C0000-0x000000000058B000-memory.dmp