quasar | 26bd3a83589305ae52315487497a1ba6e6e409438edbef7df14c4b29c52e64ae

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
15-12-2024 17:01

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General

Target

Client-built.exe
Size

3.1MB
MD5

28ab1bcff40e8063cef4448d4fc38524
SHA1

07f5ce5c6f5a3160b1040141e6130d32bed1edd7
SHA256

26bd3a83589305ae52315487497a1ba6e6e409438edbef7df14c4b29c52e64ae
SHA512

9780d3990d0fe28d6bc800132a49f8cd8f41509d732f7542f8b676fefd79af4c27a7e56e8be59283de432b019b155ed9ecff488b3fbdf315c6a02229c219b236
SSDEEP

49152:rvTlL26AaNeWgPhlmVqvMQ7XSKWURo6VbR3LoGdvTHHB72eh2NT:rvJL26AaNeWgPhlmVqkQ7XSKWURo6n

Score

10^/10

quasar office04 spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

agent-sellers.gl.at.ply.gg:4782

Mutex

92c4e81f-9c37-4d95-9999-1d9c889d6132

Attributes

encryption_key
EB7BD173527D0274DC795166855DE989150B7BE8
install_name
Client.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Quasar Client Startup
subdirectory
SubDir

Signatures

Quasar RAT
Quasar is an open source Remote Access Tool.
trojan spyware quasar
Quasar family
quasar

Quasar payload 1 IoCs

resource	yara_rule
behavioral1/memory/1900-1-0x0000000001220000-0x0000000001544000-memory.dmp	family_quasar

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1900	Client-built.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1900	Client-built.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
1900	Client-built.exe

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 FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1900

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1900-0-0x000007FEF5FE3000-0x000007FEF5FE4000-memory.dmp

Filesize
4KB

Download
memory/1900-1-0x0000000001220000-0x0000000001544000-memory.dmp

Filesize
3.1MB

Download
memory/1900-2-0x000007FEF5FE0000-0x000007FEF69CC000-memory.dmp

Filesize
9.9MB

Download
memory/1900-3-0x000007FEF5FE3000-0x000007FEF5FE4000-memory.dmp

Filesize
4KB

Download
memory/1900-4-0x000007FEF5FE0000-0x000007FEF69CC000-memory.dmp

Filesize
9.9MB

Download