quasar | 812c0beafd8928e2aa6410d1889acecf6b4213614d3fadbfc3fbba295932c9c3

Analysis

max time kernel
63s
max time network
77s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20241023-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20241023-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
09/11/2024, 15:56

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General

Target

SpotifyLauncher.exe
Size

3.1MB
MD5

459bd1f40deff63df61baa82b8c053b3
SHA1

e08e35044bf8f73b67e54901ad37a4edf33fc319
SHA256

812c0beafd8928e2aa6410d1889acecf6b4213614d3fadbfc3fbba295932c9c3
SHA512

4232cf3ef7fe0e199a9e673ce785ecdd313ebdd5104d0a016105c7a76d77c350bac623e33d794255b04d989c12436d42850ef95b68452f04f9a7c6109c44130b
SSDEEP

49152:+vkt62XlaSFNWPjljiFa2RoUYIlgtCxkkvJrNoGdR5UTHHB72eh2NT:+v462XlaSFNWPjljiFXRoUYIDkcr

Score

10^/10

quasar filip spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

filip

192.168.1.171:4782

Mutex

8a32f315-b6f7-488d-8f1f-fefeb759304a

Attributes

encryption_key
F0287BA2AFF0852B0C114DD06BE24EB4A3DB1A65
install_name
Client.exe
log_directory
Logs
reconnect_delay
3000
startup_key
SpotifyLauncher
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/2904-1-0x0000000000A70000-0x0000000000D94000-memory.dmp	family_quasar
behavioral2/files/0x00290000000450de-3.dat	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
1032	Client.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
3480	schtasks.exe
3672	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2904	SpotifyLauncher.exe
Token: SeDebugPrivilege	1032	Client.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1032	Client.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2904 wrote to memory of 3480	2904	SpotifyLauncher.exe	83
PID 2904 wrote to memory of 3480	2904	SpotifyLauncher.exe	83
PID 2904 wrote to memory of 1032	2904	SpotifyLauncher.exe	85
PID 2904 wrote to memory of 1032	2904	SpotifyLauncher.exe	85
PID 1032 wrote to memory of 3672	1032	Client.exe	88
PID 1032 wrote to memory of 3672	1032	Client.exe	88

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\SpotifyLauncher.exe
"C:\Users\Admin\AppData\Local\Temp\SpotifyLauncher.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2904
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks" /create /tn "SpotifyLauncher" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:3480
- 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 SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1032
- - C:\Windows\SYSTEM32\schtasks.exe
    "schtasks" /create /tn "SpotifyLauncher" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:3672

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

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
459bd1f40deff63df61baa82b8c053b3

SHA1
e08e35044bf8f73b67e54901ad37a4edf33fc319

SHA256
812c0beafd8928e2aa6410d1889acecf6b4213614d3fadbfc3fbba295932c9c3

SHA512
4232cf3ef7fe0e199a9e673ce785ecdd313ebdd5104d0a016105c7a76d77c350bac623e33d794255b04d989c12436d42850ef95b68452f04f9a7c6109c44130b

Download Submit
memory/1032-6-0x00007FFCBF250000-0x00007FFCBFD12000-memory.dmp

Filesize
10.8MB

Download
memory/1032-7-0x00007FFCBF250000-0x00007FFCBFD12000-memory.dmp

Filesize
10.8MB

Download
memory/1032-8-0x000000001B040000-0x000000001B090000-memory.dmp

Filesize
320KB

Download
memory/1032-9-0x000000001C700000-0x000000001C7B2000-memory.dmp

Filesize
712KB

Download
memory/1032-10-0x00007FFCBF250000-0x00007FFCBFD12000-memory.dmp

Filesize
10.8MB

Download
memory/2904-0-0x00007FFCBF253000-0x00007FFCBF255000-memory.dmp

Filesize
8KB

Download
memory/2904-1-0x0000000000A70000-0x0000000000D94000-memory.dmp

Filesize
3.1MB

Download
memory/2904-2-0x00007FFCBF250000-0x00007FFCBFD12000-memory.dmp

Filesize
10.8MB

Download
memory/2904-5-0x00007FFCBF250000-0x00007FFCBFD12000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads