Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260513-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.
- 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
- 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/1700-31-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-20-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-12-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-13-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-14-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-157-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-153-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-15-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-16-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-17-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-18-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-19-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-32-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-21-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-22-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-23-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-24-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-26-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-27-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-28-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-29-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-30-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-11-0x0000000000A4D000-0x0000000000A4E000-memory.dmp
memory/1700-94-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-146-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-34-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-35-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-36-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-37-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-150-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-6-0x0000023D1A8A0000-0x0000023D1A8A1000-memory.dmp
memory/1700-33-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-99-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-98-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-97-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-96-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-82-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-95-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-85-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-86-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-87-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-88-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-89-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-90-0x0000023D1A8A0000-0x0000023D1A8A1000-memory.dmp
memory/1700-91-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-92-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/1700-93-0x0000000000A30000-0x000000000159B000-memory.dmp
memory/2384-5-0x0000000000400000-0x00000000004CB000-memory.dmp
memory/2384-80-0x0000000000400000-0x00000000004CB000-memory.dmp
memory/2384-75-0x0000000000400000-0x00000000004CB000-memory.dmp
memory/2384-43-0x0000000000400000-0x00000000004CB000-memory.dmp
memory/2384-39-0x0000000000400000-0x00000000004CB000-memory.dmp
memory/2384-2-0x0000000000400000-0x00000000004CB000-memory.dmp
memory/2384-101-0x0000000000400000-0x00000000004CB000-memory.dmp
memory/2384-143-0x0000000000400000-0x00000000004CB000-memory.dmp
memory/2384-8-0x0000000000400000-0x00000000004CB000-memory.dmp
memory/2384-149-0x0000000000400000-0x00000000004CB000-memory.dmp
memory/2384-3-0x0000000000400000-0x00000000004CB000-memory.dmp
memory/2384-4-0x0000000000400000-0x00000000004CB000-memory.dmp
memory/2384-0-0x0000000000400000-0x00000000004CB000-memory.dmp