quasar | c6bd4b5edf4b260eda98bb9cfdfae234c17ee097b9cf4ad0ee3fef377e791471

Analysis

max time kernel
149s
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
14-11-2024 02:29

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General

Target

c6bd4b5edf4b260eda98bb9cfdfae234c17ee097b9cf4ad0ee3fef377e791471.exe
Size

3.1MB
MD5

d3598b9a1d21e32ecccbe82e7889717a
SHA1

a519a69ce3fa6fa7ccb1d7c7461aa910aed1fb38
SHA256

c6bd4b5edf4b260eda98bb9cfdfae234c17ee097b9cf4ad0ee3fef377e791471
SHA512

d2992a4145fafac9ec1ab9d1cc5006549a8cfdbeb3b6f3b9ee0bd795a26db4143da5cbf770cc1ab9aea4fddd70d6e23b47db418f89c43f6884cc7bc7941896d9
SSDEEP

49152:rvnI22SsaNYfdPBldt698dBcjHvGRJ6SbR3LoGdLFWTHHB72eh2NT:rvI22SsaNYfdPBldt6+dBcjHvGRJ6MZ

Score

10^/10

quasar conference spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

conference

192.168.0.52:22222

Mutex

2c77d2dc-d2f3-450b-97e7-f8c9be1057af

Attributes

encryption_key
970334103899B31880D90BCC0F3356263084F2F1
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 2 IoCs

resource	yara_rule
behavioral2/memory/1868-1-0x0000000000790000-0x0000000000AB4000-memory.dmp	family_quasar
behavioral2/files/0x000d000000023b6d-5.dat	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
3432	Client.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1868	c6bd4b5edf4b260eda98bb9cfdfae234c17ee097b9cf4ad0ee3fef377e791471.exe
Token: SeDebugPrivilege	3432	Client.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3432	Client.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
3432	Client.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3432	Client.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1868 wrote to memory of 3432	1868	c6bd4b5edf4b260eda98bb9cfdfae234c17ee097b9cf4ad0ee3fef377e791471.exe	86
PID 1868 wrote to memory of 3432	1868	c6bd4b5edf4b260eda98bb9cfdfae234c17ee097b9cf4ad0ee3fef377e791471.exe	86

C:\Users\Admin\AppData\Local\Temp\c6bd4b5edf4b260eda98bb9cfdfae234c17ee097b9cf4ad0ee3fef377e791471.exe
"C:\Users\Admin\AppData\Local\Temp\c6bd4b5edf4b260eda98bb9cfdfae234c17ee097b9cf4ad0ee3fef377e791471.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1868
- C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
  "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  PID:3432

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

C:\Users\Admin\AppData\Roaming\SubDir\Client.exe

Filesize
3.1MB

MD5
d3598b9a1d21e32ecccbe82e7889717a

SHA1
a519a69ce3fa6fa7ccb1d7c7461aa910aed1fb38

SHA256
c6bd4b5edf4b260eda98bb9cfdfae234c17ee097b9cf4ad0ee3fef377e791471

SHA512
d2992a4145fafac9ec1ab9d1cc5006549a8cfdbeb3b6f3b9ee0bd795a26db4143da5cbf770cc1ab9aea4fddd70d6e23b47db418f89c43f6884cc7bc7941896d9

Download Submit
memory/1868-0-0x00007FFF48353000-0x00007FFF48355000-memory.dmp

Filesize
8KB

Download
memory/1868-1-0x0000000000790000-0x0000000000AB4000-memory.dmp

Filesize
3.1MB

Download
memory/1868-2-0x00007FFF48350000-0x00007FFF48E11000-memory.dmp

Filesize
10.8MB

Download
memory/1868-9-0x00007FFF48350000-0x00007FFF48E11000-memory.dmp

Filesize
10.8MB

Download
memory/3432-8-0x00007FFF48350000-0x00007FFF48E11000-memory.dmp

Filesize
10.8MB

Download
memory/3432-10-0x00007FFF48350000-0x00007FFF48E11000-memory.dmp

Filesize
10.8MB

Download
memory/3432-11-0x000000001BB50000-0x000000001BBA0000-memory.dmp

Filesize
320KB

Download
memory/3432-12-0x000000001BC60000-0x000000001BD12000-memory.dmp

Filesize
712KB

Download
memory/3432-13-0x00007FFF48350000-0x00007FFF48E11000-memory.dmp

Filesize
10.8MB

Download