quasar | 5d147a2b5ff85bcf873178bd71d49c5a13cfe21175121ab1b5c5c46880e96851

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
27-10-2024 19:06

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

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

Processes:

resource	yara_rule
behavioral1/memory/3852-1-0x0000000000D80000-0x00000000010A4000-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

Processes:

Client-built.exe

description	pid	Process
Token: SeDebugPrivilege	3852	Client-built.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

Client-built.exe

pid	Process
3852	Client-built.exe

Suspicious use of SendNotifyMessage 1 IoCs

Processes:

Client-built.exe

pid	Process
3852	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:3852

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

Loading Replay Monitor...

Downloads

memory/3852-0-0x00007FFB89CE3000-0x00007FFB89CE5000-memory.dmp

Filesize
8KB

Download
memory/3852-1-0x0000000000D80000-0x00000000010A4000-memory.dmp

Filesize
3.1MB

Download
memory/3852-2-0x00007FFB89CE0000-0x00007FFB8A7A1000-memory.dmp

Filesize
10.8MB

Download
memory/3852-3-0x000000001C7A0000-0x000000001C7F0000-memory.dmp

Filesize
320KB

Download
memory/3852-4-0x000000001C8B0000-0x000000001C962000-memory.dmp

Filesize
712KB

Download
memory/3852-5-0x00007FFB89CE3000-0x00007FFB89CE5000-memory.dmp

Filesize
8KB

Download
memory/3852-6-0x00007FFB89CE0000-0x00007FFB8A7A1000-memory.dmp

Filesize
10.8MB

Download