Analysis
- max time kernel
150s - max time network
156s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
02/09/2026, 12:26
Behavioral task
behavioral1
Sample
4.621.1.400.exe
Resource
win10v2004-20260513-en
13 signatures
150 seconds
General
- Target 4.621.1.400.exe
- Size 408KB
- Sample260902-pl7ggssdrf
- SHA256 ed7f362ed3bda2b62fe349fec6ee0a353811dd163780e4a206574fd1573394f3
- MD5 8ef326e9c5612c53625f4239ec1bc84c
- SHA1 f3c207869d32bc40a780baa3ecf23c7fcef4f704
- SHA512 719406bc2e16a8573818b3dc239e79e8828ea233e1cfa10c9a3f771819287ca22f6d8860ce96eb5a976e27c22e14018bdefa6deef4b407dc45f0c89ec1e3d0fb
- SSDEEP 6144:RafsiuvAQ+tTm6cyERSiytj71cWE4jKS6v:GCvAQ+q6ctRt636WfjO
- TLSH T18C94AE82EBD340F1D8970BB15067B77F9B724B0E502CDD9AD7942E56AC33223992E394
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
Family
-
macoute
C2
-
87.98.185.184
Signatures
- Detects Macoute worm 6 IoCs
resource yara_rule behavioral2/memory/2384-0-0x0000000000400000-0x00000000004D4000-memory.dmp family_macoute behavioral2/memory/2384-1-0x0000000000400000-0x00000000004D4000-memory.dmp family_macoute behavioral2/files/0x000d00000001c5c3-2.dat family_macoute behavioral2/memory/2384-3-0x0000000000400000-0x00000000004D4000-memory.dmp family_macoute behavioral2/memory/1304-4-0x0000000000400000-0x00000000004D4000-memory.dmp family_macoute behavioral2/memory/1304-5-0x0000000000400000-0x00000000004D4000-memory.dmp family_macoute - Executes dropped EXE 1 IoCs
pid Process 1304 msn.exe - Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\apo5 = "C:\\Program Files (x86)\\win\\msn.exe" 4.621.1.400.exe - Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\y: msn.exe File opened (read-only) \??\a: msn.exe File opened (read-only) \??\b: msn.exe File opened (read-only) \??\h: msn.exe File opened (read-only) \??\k: msn.exe File opened (read-only) \??\r: msn.exe File opened (read-only) \??\t: msn.exe File opened (read-only) \??\x: msn.exe File opened (read-only) \??\z: msn.exe File opened (read-only) \??\d: msn.exe File opened (read-only) \??\j: msn.exe File opened (read-only) \??\q: msn.exe File opened (read-only) \??\s: msn.exe File opened (read-only) \??\i: msn.exe File opened (read-only) \??\m: msn.exe File opened (read-only) \??\u: msn.exe File opened (read-only) \??\v: msn.exe File opened (read-only) \??\g: msn.exe File opened (read-only) \??\l: msn.exe File opened (read-only) \??\n: msn.exe File opened (read-only) \??\o: msn.exe File opened (read-only) \??\p: msn.exe File opened (read-only) \??\w: msn.exe - Drops file in Program Files directory 2 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\win 4.621.1.400.exe File created C:\Program Files (x86)\win\msn.exe 4.621.1.400.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 4.621.1.400.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language msn.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1014449518-1831897916-4205727055-1000\Software\Microsoft\Internet Explorer\IntelliForms\Storage2 msn.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 2384 wrote to memory of 1304 2384 4.621.1.400.exe 90
Processes
-
C:\Users\Admin\AppData\Local\Temp\4.621.1.400.exe"C:\Users\Admin\AppData\Local\Temp\4.621.1.400.exe"1⤵
- Adds Run key to start application
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2384 -
C:\Program Files (x86)\win\msn.exe"C:\Program Files (x86)\win\msn.exe"2⤵
- Executes dropped EXE
- Enumerates connected drives
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
PID:1304
-
Network
MITRE ATT&CK Enterprise v16
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Program Files (x86)\win\msn.exe
- Size 408KB
- SHA256 ed7f362ed3bda2b62fe349fec6ee0a353811dd163780e4a206574fd1573394f3
- MD5 8ef326e9c5612c53625f4239ec1bc84c
- SHA1 f3c207869d32bc40a780baa3ecf23c7fcef4f704
- SHA512 719406bc2e16a8573818b3dc239e79e8828ea233e1cfa10c9a3f771819287ca22f6d8860ce96eb5a976e27c22e14018bdefa6deef4b407dc45f0c89ec1e3d0fb
- SSDEEP 6144:RafsiuvAQ+tTm6cyERSiytj71cWE4jKS6v:GCvAQ+q6ctRt636WfjO
- TLSH T18C94AE82EBD340F1D8970BB15067B77F9B724B0E502CDD9AD7942E56AC33223992E394
- MD5 SHA1 SHA512 SSDEEP TLSH