quasar | 41b6ef73bf31522453fc3550a529e9400c115cdc1a0aaba94e085694524cc5f5

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
25-12-2024 21:19

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General

Target

41b6ef73bf31522453fc3550a529e9400c115cdc1a0aaba94e085694524cc5f5.exe
Size

3.1MB
MD5

62c7975abd55070b185e65d7521d7162
SHA1

8daec05ff1984ad1e7f2607f72a9092829ca7ea9
SHA256

41b6ef73bf31522453fc3550a529e9400c115cdc1a0aaba94e085694524cc5f5
SHA512

615ce6e32d1cae56890562b60d0803896054c5f3b9b05f812d6ac34435a3ad97c58d0d66ef5301341a16009485aef4253826cd492158d95adceecfc9079ed9db
SSDEEP

49152:rvbI22SsaNYfdPBldt698dBcjHyVxNESEnk/i1LoGdCTHHB72eh2NT4:rvk22SsaNYfdPBldt6+dBcjHkx+N8

Score

10^/10

quasar office04 spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

192.168.219.111:4782

Mutex

49d787b3-0fea-4746-8e18-a33027a94e42

Attributes

encryption_key
BD5280C2874A956B96E6A92745A817A564CC5CE5
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
behavioral2/memory/1544-1-0x0000000000DC0000-0x00000000010E4000-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	1544	41b6ef73bf31522453fc3550a529e9400c115cdc1a0aaba94e085694524cc5f5.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1544	41b6ef73bf31522453fc3550a529e9400c115cdc1a0aaba94e085694524cc5f5.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
1544	41b6ef73bf31522453fc3550a529e9400c115cdc1a0aaba94e085694524cc5f5.exe

C:\Users\Admin\AppData\Local\Temp\41b6ef73bf31522453fc3550a529e9400c115cdc1a0aaba94e085694524cc5f5.exe
"C:\Users\Admin\AppData\Local\Temp\41b6ef73bf31522453fc3550a529e9400c115cdc1a0aaba94e085694524cc5f5.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1544

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/1544-0-0x00007FFD6D403000-0x00007FFD6D405000-memory.dmp

Filesize
8KB

Download
memory/1544-1-0x0000000000DC0000-0x00000000010E4000-memory.dmp

Filesize
3.1MB

Download
memory/1544-2-0x00007FFD6D400000-0x00007FFD6DEC1000-memory.dmp

Filesize
10.8MB

Download
memory/1544-3-0x000000001C7E0000-0x000000001C830000-memory.dmp

Filesize
320KB

Download
memory/1544-4-0x000000001C8F0000-0x000000001C9A2000-memory.dmp

Filesize
712KB

Download
memory/1544-5-0x00007FFD6D403000-0x00007FFD6D405000-memory.dmp

Filesize
8KB

Download
memory/1544-6-0x00007FFD6D400000-0x00007FFD6DEC1000-memory.dmp

Filesize
10.8MB

Download