quasar | c66da9e2a3e32a7b16c561e89623411d329bedb69a9d80f12ebfff7ba94a0e3e

Analysis

max time kernel
145s
max time network
148s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
01-06-2024 16:30

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General

Target

c66da9e2a3e32a7b16c561e89623411d329bedb69a9d80f12ebfff7ba94a0e3e.exe
Size

3.1MB
MD5

f73c79f1b3f1baaf66b5217591617996
SHA1

7adf50ec4e343c7c890f360041206146bd166807
SHA256

c66da9e2a3e32a7b16c561e89623411d329bedb69a9d80f12ebfff7ba94a0e3e
SHA512

5ca6289d009234ce50b4fdbecb2c51898c812b7175af6d7753ffcdfac94c849530b13346b903d8b8f7fad240835c957fda0421fa73e97a1943410da3eb00a426
SSDEEP

49152:PvFG42pda6D+/PjlLOlg6yQipV5PRJ6ebR3LoGdhTHHB72eh2NT:Pv842pda6D+/PjlLOlZyQipV5PRJ6Y

Score

10^/10

quasar office04 spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

10.128.49.236:4783

10.128.49.71:4783

127.0.0.1:4783

Mutex

eeb9accf-baef-479b-ac89-0eaf9d0c2e80

Attributes

encryption_key
7C1BD457B9B162A1B4E9153B6861CCB30916DB14
install_name
Client.exe
log_directory
Logs
reconnect_delay
1000
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
behavioral1/memory/3068-1-0x00000000001C0000-0x00000000004E4000-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:

c66da9e2a3e32a7b16c561e89623411d329bedb69a9d80f12ebfff7ba94a0e3e.exe

description pid process

Token: SeDebugPrivilege 3068 c66da9e2a3e32a7b16c561e89623411d329bedb69a9d80f12ebfff7ba94a0e3e.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

c66da9e2a3e32a7b16c561e89623411d329bedb69a9d80f12ebfff7ba94a0e3e.exe

pid process

3068 c66da9e2a3e32a7b16c561e89623411d329bedb69a9d80f12ebfff7ba94a0e3e.exe
Suspicious use of SendNotifyMessage 1 IoCs

Processes:

c66da9e2a3e32a7b16c561e89623411d329bedb69a9d80f12ebfff7ba94a0e3e.exe

pid process

3068 c66da9e2a3e32a7b16c561e89623411d329bedb69a9d80f12ebfff7ba94a0e3e.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

c66da9e2a3e32a7b16c561e89623411d329bedb69a9d80f12ebfff7ba94a0e3e.exe

pid process

3068 c66da9e2a3e32a7b16c561e89623411d329bedb69a9d80f12ebfff7ba94a0e3e.exe

description	pid	process
Token: SeDebugPrivilege	3068	c66da9e2a3e32a7b16c561e89623411d329bedb69a9d80f12ebfff7ba94a0e3e.exe

pid	process
3068	c66da9e2a3e32a7b16c561e89623411d329bedb69a9d80f12ebfff7ba94a0e3e.exe

pid	process
3068	c66da9e2a3e32a7b16c561e89623411d329bedb69a9d80f12ebfff7ba94a0e3e.exe

pid	process
3068	c66da9e2a3e32a7b16c561e89623411d329bedb69a9d80f12ebfff7ba94a0e3e.exe

C:\Users\Admin\AppData\Local\Temp\c66da9e2a3e32a7b16c561e89623411d329bedb69a9d80f12ebfff7ba94a0e3e.exe
"C:\Users\Admin\AppData\Local\Temp\c66da9e2a3e32a7b16c561e89623411d329bedb69a9d80f12ebfff7ba94a0e3e.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:3068

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/3068-0-0x000007FEF58A3000-0x000007FEF58A4000-memory.dmp

Filesize
4KB

Download
memory/3068-1-0x00000000001C0000-0x00000000004E4000-memory.dmp

Filesize
3.1MB

Download
memory/3068-2-0x000007FEF58A0000-0x000007FEF628C000-memory.dmp

Filesize
9.9MB

Download
memory/3068-3-0x000007FEF58A3000-0x000007FEF58A4000-memory.dmp

Filesize
4KB

Download
memory/3068-4-0x000007FEF58A0000-0x000007FEF628C000-memory.dmp

Filesize
9.9MB

Download