Analysis
- max time kernel
148s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
16/09/2026, 02:03
Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win10v2004-20260911-en
6 signatures
150 seconds
General
- Target Client-built.exe
- Size 3.1MB
- Sample260916-cgrt1svdlf
- SHA256 c942848d67d5a09c9b125ae5ad923303535ff2a269ba2034f9347014c849568d
- MD5 4dcc693d0d6cb7ab5cbeff4feba635ec
- SHA1 548e47c067e8521ec509a125cce030bfa456ef6e
- SHA512 0f24ef3409abd97566dad375d5c7ee0e722d0490ecafba7f07e3a719b2a9b720f4a0eab3e04d59b9a902f9f26a7105fea23e95fddebd9cbf362455d061897dff
- SSDEEP 49152:cvsFM2eBaGlMJPFlUERb6HXqwxOP/4Bx+LoGdA3VTHHB72eh2NT:cv8M2eBaGlMJPFlUERGHXqwxq/7w3
- TLSH T1C8E56B0437F85E33E56BD2B3D5B05026A3F1E82AF363EB1B119167BE1C53B5488426A7
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
Family
-
quasar
Version
-
1.4.1
Botnet
-
Office04
C2
-
x88mi.com:443
-
www.x88mi.com:443
-
x88mi.com:80
-
www.x88mi.com:80
-
www.ao88mi.com:443
-
ao88mi.com:443
-
www.ao88mi.com:80
-
ao88mi.com:80
-
www.kuy88.xyz:80
-
kuy88.xyz:80
Mutex
-
20ba99d2-1ee6-4390-8659-98fb45299cc2
Attributes
-
encryption_key
B0D881BBD5D7A35DA4AD369AB33EA64F85982C06
-
install_name
Client.exe
-
key_salt
bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
Quasar Client Startup
-
subdirectory
SubDir
Signatures
- Quasar payload 1 IoCs
resource yara_rule behavioral2/memory/3984-1-0x0000000000600000-0x0000000000924000-memory.dmp family_quasar - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3984 Client-built.exe - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 3984 Client-built.exe - Suspicious use of SendNotifyMessage 1 IoCs
pid Process 3984 Client-built.exe