Analysis
- max time kernel
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
20/09/2026, 12:49
Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win10v2004-20260911-en
6 signatures
150 seconds
General
- Target Client-built.exe
- Size 3.2MB
- Sample260920-p2ndjsvs9p
- SHA256 73bbf2725c71944b029e8ca264769d348d0cdcc75a0f2749cfcc36b427e3fbac
- MD5 2d516843085e7b16d7fb45b80f5bf510
- SHA1 13fccf1a16dd400f0a04c8b9689ebcc470adcd3b
- SHA512 a42f92ff81ab702022c1a61ba9dd000624a9a66bc29a9005f305cdbd3a92b90ea49107c84daffe31bc48f0e24b19b06770204340e672d5d82a5cd45566f4d457
- SSDEEP 49152:8OhpEx8n4w+4yKQaUSgRCy6VJHHB72eh1NT:8OQ8n4w5d4i
- TLSH T1E6E56B1977FC5E32E56AE772D6B0001263F0F82AB3A3EB0B618157BB1C53B4059527A7
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
Family
-
quasar
Version
-
1.4.1
Botnet
-
Office04
C2
-
127.0.0.1:4782
Mutex
-
bd60b3f9-e86c-4eef-b8fb-f688a608871c
Attributes
-
encryption_key
C2A2959F6FB18E9E60626AA7D069DCDF54C32464
-
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/6020-1-0x0000000000F30000-0x000000000125C000-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 6020 Client-built.exe - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 6020 Client-built.exe - Suspicious use of SendNotifyMessage 1 IoCs
pid Process 6020 Client-built.exe