quasar | 5d147a2b5ff85bcf873178bd71d49c5a13cfe21175121ab1b5c5c46880e96851

Analysis

max time kernel
146s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
27-10-2024 19:10

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General

Target

Client-built.exe
Size

3.1MB
MD5

c90a07d50d071f8a14b509eb191d8f7c
SHA1

9aa2f2042737123ee6986430eca41c8a47890be8
SHA256

5d147a2b5ff85bcf873178bd71d49c5a13cfe21175121ab1b5c5c46880e96851
SHA512

c4dfdb79df58c3ab6658446d65e4236dd3dffa026a4d01d1a7588c5758e8b8b56383d43188beb46c9bbce5245dbfaae2b2f24fe721b33ba0cc39e821e6431bb8
SSDEEP

49152:Kvlt62XlaSFNWPjljiFa2RoUYIstmhmzCOoGdzbTHHB72eh2NT:KvX62XlaSFNWPjljiFXRoUYIstmW

Score

10^/10

quasar office04 spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

127.0.0.1:4782

Mutex

41dbc4e3-4c49-4e37-971d-bce5c6356d47

Attributes

encryption_key
5446A6EE72AE0400FB80FEE45AC7AEB6FA7DD14B
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/2676-1-0x0000000000E00000-0x0000000001124000-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	2676	Client-built.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2676	Client-built.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2676	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:2676

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/2676-0-0x000007FEF62E3000-0x000007FEF62E4000-memory.dmp

Filesize
4KB

Download
memory/2676-1-0x0000000000E00000-0x0000000001124000-memory.dmp

Filesize
3.1MB

Download
memory/2676-2-0x000007FEF62E0000-0x000007FEF6CCC000-memory.dmp

Filesize
9.9MB

Download
memory/2676-3-0x000007FEF62E3000-0x000007FEF62E4000-memory.dmp

Filesize
4KB

Download
memory/2676-4-0x000007FEF62E0000-0x000007FEF6CCC000-memory.dmp

Filesize
9.9MB

Download