Analysis
-
max time kernel
144s -
max time network
161s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
01-07-2024 01:22
Behavioral task
behavioral1
Sample
27dad1cf69f9cb558f4d975c8bf34faa.exe
Resource
win7-20240611-en
General
-
Target
27dad1cf69f9cb558f4d975c8bf34faa.exe
-
Size
3.1MB
-
MD5
27dad1cf69f9cb558f4d975c8bf34faa
-
SHA1
ea7beaa366b83b6e8410b10cdf055d08df49c907
-
SHA256
910222c58e9a584fe4015ef10462470b320b624d7b56056b3ffcf7ea2f479b80
-
SHA512
5f2251f3b017ee9103416928d23d179de716f84d21c287b441d05130b8102df9b8fe616a46a15e62ad524f27b99beb755949ab0d79c1ef9d77b25eb079076c1a
-
SSDEEP
49152:Xv+e821/aQWl8P0lSk3aKA3Z+ndBxNESEzk/iNLoGdWLTHHB72eh2NT:Xv9821/aQWl8P0lSk3DA3Z+nbxmF
Malware Config
Extracted
quasar
1.4.1
Office04
performance-ha.gl.at.ply.gg:33365
performance-ha.gl.at.ply.gg:13678
ba5220e2-c4e8-4381-aad8-a85115ef955e
-
encryption_key
67C139F3E9A16FF8132A3DCF42197B8BA3C38609
-
install_name
Client.exe
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
Quasar Client Startup
-
subdirectory
SubDir
Signatures
-
Quasar payload 2 IoCs
Processes:
resource yara_rule behavioral2/memory/2184-1-0x0000000000B60000-0x0000000000E84000-memory.dmp family_quasar C:\Users\Admin\AppData\Roaming\SubDir\Client.exe family_quasar -
Executes dropped EXE 1 IoCs
Processes:
Client.exepid process 1968 Client.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
27dad1cf69f9cb558f4d975c8bf34faa.exeClient.exedescription pid process Token: SeDebugPrivilege 2184 27dad1cf69f9cb558f4d975c8bf34faa.exe Token: SeDebugPrivilege 1968 Client.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
Client.exepid process 1968 Client.exe -
Suspicious use of SendNotifyMessage 1 IoCs
Processes:
Client.exepid process 1968 Client.exe -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
27dad1cf69f9cb558f4d975c8bf34faa.exedescription pid process target process PID 2184 wrote to memory of 1968 2184 27dad1cf69f9cb558f4d975c8bf34faa.exe Client.exe PID 2184 wrote to memory of 1968 2184 27dad1cf69f9cb558f4d975c8bf34faa.exe Client.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\27dad1cf69f9cb558f4d975c8bf34faa.exe"C:\Users\Admin\AppData\Local\Temp\27dad1cf69f9cb558f4d975c8bf34faa.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 use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
-
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4060 --field-trial-handle=3240,i,13319578961094268484,16557498665191861597,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Roaming\SubDir\Client.exeFilesize
3.1MB
MD527dad1cf69f9cb558f4d975c8bf34faa
SHA1ea7beaa366b83b6e8410b10cdf055d08df49c907
SHA256910222c58e9a584fe4015ef10462470b320b624d7b56056b3ffcf7ea2f479b80
SHA5125f2251f3b017ee9103416928d23d179de716f84d21c287b441d05130b8102df9b8fe616a46a15e62ad524f27b99beb755949ab0d79c1ef9d77b25eb079076c1a
-
memory/1968-9-0x00007FF9872D0000-0x00007FF987D91000-memory.dmpFilesize
10.8MB
-
memory/1968-11-0x00007FF9872D0000-0x00007FF987D91000-memory.dmpFilesize
10.8MB
-
memory/1968-13-0x00007FF9872D0000-0x00007FF987D91000-memory.dmpFilesize
10.8MB
-
memory/1968-14-0x000000001C6A0000-0x000000001C6F0000-memory.dmpFilesize
320KB
-
memory/1968-15-0x000000001C7B0000-0x000000001C862000-memory.dmpFilesize
712KB
-
memory/2184-0-0x00007FF9872D3000-0x00007FF9872D5000-memory.dmpFilesize
8KB
-
memory/2184-1-0x0000000000B60000-0x0000000000E84000-memory.dmpFilesize
3.1MB
-
memory/2184-2-0x00007FF9872D0000-0x00007FF987D91000-memory.dmpFilesize
10.8MB
-
memory/2184-3-0x00007FF9872D3000-0x00007FF9872D5000-memory.dmpFilesize
8KB
-
memory/2184-4-0x00007FF9872D0000-0x00007FF987D91000-memory.dmpFilesize
10.8MB
-
memory/2184-12-0x00007FF9872D0000-0x00007FF987D91000-memory.dmpFilesize
10.8MB