quasar | 378d287411180c7a4a675116862bd810b8250a7c11a3c5fd04b04ef59e0e4cf8

Analysis

max time kernel
149s
max time network
150s
platform
windows11-21h2_x64
resource
win11-20240611-en
resource tags

arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system
submitted
23-06-2024 12:46

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General

Target

378d287411180c7a4a675116862bd810b8250a7c11a3c5fd04b04ef59e0e4cf8.exe
Size

3.1MB
MD5

ca283d3c1cccde01d5fca1e37c3fddb6
SHA1

bc9c7bdb87936f580871374b60ccb9392770594d
SHA256

378d287411180c7a4a675116862bd810b8250a7c11a3c5fd04b04ef59e0e4cf8
SHA512

31a49241bb2aa3b024e9f9076a4b6f0e275f92128f7e5d9e317c377a8783fbfceb1c06a8e658e3c25e9deb680fa4fdfa83120630e1abb5d3079b72ac4ba58413
SSDEEP

49152:3vTlL26AaNeWgPhlmVqvMQ7XSK2uRJ6FbR3LoGdPTHHB72eh2NT:3vJL26AaNeWgPhlmVqkQ7XSK2uRJ6X

Score

10^/10

quasar office04 spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

10.109.9.184:4782

10.109.9.35:4782

Mutex

1916cb83-b99a-4ecb-a054-4e009de2edc6

Attributes

encryption_key
CE28057C20C1DED27F22AD4254F5C2C5464D46B3
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 payload 1 IoCs

Processes:

resource yara_rule

behavioral2/memory/4908-1-0x0000000000B70000-0x0000000000E94000-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:

378d287411180c7a4a675116862bd810b8250a7c11a3c5fd04b04ef59e0e4cf8.exe

description pid process

Token: SeDebugPrivilege 4908 378d287411180c7a4a675116862bd810b8250a7c11a3c5fd04b04ef59e0e4cf8.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

378d287411180c7a4a675116862bd810b8250a7c11a3c5fd04b04ef59e0e4cf8.exe

pid process

4908 378d287411180c7a4a675116862bd810b8250a7c11a3c5fd04b04ef59e0e4cf8.exe
Suspicious use of SendNotifyMessage 1 IoCs

Processes:

378d287411180c7a4a675116862bd810b8250a7c11a3c5fd04b04ef59e0e4cf8.exe

pid process

4908 378d287411180c7a4a675116862bd810b8250a7c11a3c5fd04b04ef59e0e4cf8.exe

resource	yara_rule
behavioral2/memory/4908-1-0x0000000000B70000-0x0000000000E94000-memory.dmp	family_quasar

description	pid	process
Token: SeDebugPrivilege	4908	378d287411180c7a4a675116862bd810b8250a7c11a3c5fd04b04ef59e0e4cf8.exe

pid	process
4908	378d287411180c7a4a675116862bd810b8250a7c11a3c5fd04b04ef59e0e4cf8.exe

pid	process
4908	378d287411180c7a4a675116862bd810b8250a7c11a3c5fd04b04ef59e0e4cf8.exe

C:\Users\Admin\AppData\Local\Temp\378d287411180c7a4a675116862bd810b8250a7c11a3c5fd04b04ef59e0e4cf8.exe
"C:\Users\Admin\AppData\Local\Temp\378d287411180c7a4a675116862bd810b8250a7c11a3c5fd04b04ef59e0e4cf8.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:4908

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/4908-0-0x00007FFC56493000-0x00007FFC56495000-memory.dmp

Filesize
8KB

Download
memory/4908-1-0x0000000000B70000-0x0000000000E94000-memory.dmp

Filesize
3.1MB

Download
memory/4908-2-0x00007FFC56490000-0x00007FFC56F52000-memory.dmp

Filesize
10.8MB

Download
memory/4908-3-0x000000001C4F0000-0x000000001C540000-memory.dmp

Filesize
320KB

Download
memory/4908-4-0x000000001C600000-0x000000001C6B2000-memory.dmp

Filesize
712KB

Download
memory/4908-5-0x00007FFC56493000-0x00007FFC56495000-memory.dmp

Filesize
8KB

Download
memory/4908-6-0x00007FFC56490000-0x00007FFC56F52000-memory.dmp

Filesize
10.8MB

Download