quasar | c6bd4b5edf4b260eda98bb9cfdfae234c17ee097b9cf4ad0ee3fef377e791471

Analysis

max time kernel
127s
max time network
142s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-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 3 IoCs

resource	yara_rule
behavioral1/memory/2192-1-0x0000000001250000-0x0000000001574000-memory.dmp	family_quasar
behavioral1/files/0x000700000001923e-5.dat	family_quasar
behavioral1/memory/2256-9-0x00000000003A0000-0x00000000006C4000-memory.dmp	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
2256	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	2192	c6bd4b5edf4b260eda98bb9cfdfae234c17ee097b9cf4ad0ee3fef377e791471.exe
Token: SeDebugPrivilege	2256	Client.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2256	Client.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2256	Client.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2256	Client.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2192 wrote to memory of 2256	2192	c6bd4b5edf4b260eda98bb9cfdfae234c17ee097b9cf4ad0ee3fef377e791471.exe	30
PID 2192 wrote to memory of 2256	2192	c6bd4b5edf4b260eda98bb9cfdfae234c17ee097b9cf4ad0ee3fef377e791471.exe	30
PID 2192 wrote to memory of 2256	2192	c6bd4b5edf4b260eda98bb9cfdfae234c17ee097b9cf4ad0ee3fef377e791471.exe	30

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:2192
- 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:2256

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

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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/2192-0-0x000007FEF5F83000-0x000007FEF5F84000-memory.dmp

Filesize
4KB

Download
memory/2192-1-0x0000000001250000-0x0000000001574000-memory.dmp

Filesize
3.1MB

Download
memory/2192-2-0x000007FEF5F80000-0x000007FEF696C000-memory.dmp

Filesize
9.9MB

Download
memory/2192-8-0x000007FEF5F80000-0x000007FEF696C000-memory.dmp

Filesize
9.9MB

Download
memory/2256-7-0x000007FEF5F80000-0x000007FEF696C000-memory.dmp

Filesize
9.9MB

Download
memory/2256-9-0x00000000003A0000-0x00000000006C4000-memory.dmp

Filesize
3.1MB

Download
memory/2256-10-0x000007FEF5F80000-0x000007FEF696C000-memory.dmp

Filesize
9.9MB

Download
memory/2256-11-0x000007FEF5F80000-0x000007FEF696C000-memory.dmp

Filesize
9.9MB

Download