Analysis
- max time kernel
149s - max time network
151s - platform
windows11-21h2_x64 - resource
win11-20251015-en - resource tags
- submitted
05/12/2025, 09:27
General
- Target Client-built.exe
- Size 1.9MB
- Sample251205-lerkxaypgm
- SHA256 8ececec7c010cd3a7bba6240af2d4f0ee213f4b6da28f3ec6ab8ef96cc95bfd9
Malware Config
Extracted
-
quasar
-
1.6.6
-
Office04
-
LeDivineEnfant-60344.portmap.host:4782
-
cefd948e-c528-41d4-9188-db371d5f4df9
-
encryption_key
15398E9F6A2F6329867CE2928AE7218CAF300A75
-
install_name
Client.exe
-
key_salt
5a23f8394640cb9e40658446a04c0bbae82dc93d0470e1b2a406a90fd2520382
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
Pulsar Client Startup
-
subdirectory
SubDir
Signatures
- Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar family
- Quasar payload 2 IoCs
- Executes dropped EXE 1 IoCs
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Client-built.exe"C:\Users\Admin\AppData\Local\Temp\Client-built.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"2⤵
- Executes dropped EXE
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
Client.exe
memory/2996-10-0x0000028A4E5C0000-0x0000028A4E610000-memory.dmp
memory/2996-12-0x0000028A4E550000-0x0000028A4E59A000-memory.dmp
memory/2996-17-0x0000028A4EAF0000-0x0000028A4EB3A000-memory.dmp
memory/2996-8-0x0000028A4E5B0000-0x0000028A4E5C0000-memory.dmp
memory/2996-9-0x0000028A4E510000-0x0000028A4E54A000-memory.dmp
memory/2996-18-0x0000028A4E9B0000-0x0000028A4E9DA000-memory.dmp
memory/2996-11-0x0000028A4E9E0000-0x0000028A4EA92000-memory.dmp
memory/2996-16-0x0000028A4EAA0000-0x0000028A4EAEC000-memory.dmp
memory/2996-13-0x0000028A4E920000-0x0000028A4E96E000-memory.dmp
memory/2996-14-0x0000028A35D20000-0x0000028A35D46000-memory.dmp
memory/2996-15-0x0000028A4E970000-0x0000028A4E9A4000-memory.dmp
memory/3812-2-0x0000018A1C890000-0x0000018A1C8AC000-memory.dmp
memory/3812-0-0x0000018A1C260000-0x0000018A1C442000-memory.dmp
memory/3812-1-0x0000018A1C8D0000-0x0000018A1C8E0000-memory.dmp