Analysis
- max time kernel
149s - max time network
159s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
08/04/2026, 13:28
Behavioral task
behavioral1
Sample
fkgohw.za.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral2
Sample
fkgohw.za.exe
Resource
win11-20260130-en
General
- Target fkgohw.za.exe
- Size 3.1MB
- Sample260408-qqsdssb19l
- SHA256 c48bddaa576e20d296f78981bf730834f630686c687b894acb66575034b339ed
- MD5 5e7aef73732c38ed643405a2bcbf79e5
- SHA1 c3807442d3afa9155da369bba4a250c4ffa6e3e2
- SHA512 c100b74ab0e01646c87cabb589c399aa08f0bade8189a771e9ada8460e7e2221277cf46c3382c50305f15881a3d69237e23333ac3be76cb32d7236f9c443e51b
- SSDEEP 49152:rvze821/aQWl8P0lSk3aKA3Z+nudRJ69bR3LoGd3THHB72eh2NT:rvS821/aQWl8P0lSk3DA3Z+nudRJ6P
- TLSH T17EE56B143BF85E27E1BBE677E5B0041267F0FC1AB363EB0B6581677A1C53B5098026A7
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
quasar
-
1.4.1
-
fkgohw.za.com
-
fkgohw.za.com:80
-
fkgohw.za.com:8080
-
fkgohw.za.com:443
-
fkgohw.za.com:8443
-
dc84e7d7-1880-44d7-b9b1-977a69077998
-
encryption_key
576D1496F563366ADEBFC3046D6584BB4AD91241
-
install_name
Client.exe
-
key_salt
bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
-
log_directory
Logs
-
reconnect_delay
10
-
startup_key
https://fkgohw.za.com
-
subdirectory
SubDir
Signatures
- Quasar family
- Quasar payload 1 IoCs
resource yara_rule behavioral2/memory/3296-0-0x00000000008C0000-0x0000000000BE4000-memory.dmp family_quasar - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-600123060-2148212387-2211176695-1000\Software\Microsoft\Windows\CurrentVersion\Run\https://fkgohw.za.com = "\"C:\\Users\\Admin\\AppData\\Roaming\\SubDir\\Client.exe\"" fkgohw.za.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 940 schtasks.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3296 fkgohw.za.exe - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 3296 fkgohw.za.exe - Suspicious use of SendNotifyMessage 1 IoCs
pid Process 3296 fkgohw.za.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 3296 wrote to memory of 940 3296 fkgohw.za.exe 79 - Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Users\Admin\AppData\Local\Temp\fkgohw.za.exe"C:\Users\Admin\AppData\Local\Temp\fkgohw.za.exe"1⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3296 -
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "https://fkgohw.za.com" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
PID:940
-
Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1