quasar | 1d36df8260d35b6d903a57018041527a74cf3a44a4203ed11244cb1a24f79e17

Analysis

max time kernel
133s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
17/08/2024, 16:41

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General

Target
pngratbuilder.exe
Size 3.3MB
Sample240817-t7dhrawajf
SHA256 1d36df8260d35b6d903a57018041527a74cf3a44a4203ed11244cb1a24f79e17
MD5 92a6143dcbd8a902f2035a80356f080e
SHA1 286bb5b223228a8f5d63ad41f7bde51df0fb4886
SHA512 eae2f288b8148f6c792fcf4a8c2726173c70f66767678f97129637bc5d40e6f20f05e2ecdd451451d5b2e5f4c9e799996c3b0b943ab75290fa19d52549fe687f
SSDEEP 49152:uv3go2QSaNpzyPllgamb0CZof/JskG3FarpLoGdITHHB72eh2NT:uvQo2QSaNpzyPllgamYCZof/Ju30
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

quasar image spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

image

26.252.166.137:4782
192.168.56.1:4782
192.168.1.110:4782
2001:14ba:4850:e000::1a:4782
2001:14ba:4850:e000:3748:5dbb:3d1f:7a8c:4782

Mutex

386e98fd-9d46-4ec0-a3cf-9d633def31f8

Attributes

encryption_key
887503DA77A68440573286074E9EF40CA76D926E
install_name
ImageLoader.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Shell Startup
subdirectory
Images

Signatures

Quasar RAT
Quasar is an open source Remote Access Tool.
trojan spyware quasar

Quasar payload 2 IoCs

resource	yara_rule
behavioral2/memory/3056-1-0x0000000000500000-0x000000000084E000-memory.dmp	family_quasar
behavioral2/files/0x0007000000023443-5.dat	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
2948	ImageLoader.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
3536	schtasks.exe
1460	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3056	pngratbuilder.exe
Token: SeDebugPrivilege	2948	ImageLoader.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2948	ImageLoader.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2948	ImageLoader.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2948	ImageLoader.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3056 wrote to memory of 1460	3056	pngratbuilder.exe	87
PID 3056 wrote to memory of 1460	3056	pngratbuilder.exe	87
PID 3056 wrote to memory of 2948	3056	pngratbuilder.exe	89
PID 3056 wrote to memory of 2948	3056	pngratbuilder.exe	89
PID 2948 wrote to memory of 3536	2948	ImageLoader.exe	90
PID 2948 wrote to memory of 3536	2948	ImageLoader.exe	90

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\pngratbuilder.exe
"C:\Users\Admin\AppData\Local\Temp\pngratbuilder.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3056
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks" /create /tn "Shell Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Images\ImageLoader.exe" /rl HIGHEST /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1460
- C:\Users\Admin\AppData\Roaming\Images\ImageLoader.exe
  "C:\Users\Admin\AppData\Roaming\Images\ImageLoader.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2948
- - C:\Windows\SYSTEM32\schtasks.exe
    "schtasks" /create /tn "Shell Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Images\ImageLoader.exe" /rl HIGHEST /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:3536

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

ImageLoader.exe

Path C:\Users\Admin\AppData\Roaming\Images\ImageLoader.exe
Size 3.3MB
SHA256 1d36df8260d35b6d903a57018041527a74cf3a44a4203ed11244cb1a24f79e17
MD5 92a6143dcbd8a902f2035a80356f080e
SHA1 286bb5b223228a8f5d63ad41f7bde51df0fb4886
SHA512 eae2f288b8148f6c792fcf4a8c2726173c70f66767678f97129637bc5d40e6f20f05e2ecdd451451d5b2e5f4c9e799996c3b0b943ab75290fa19d52549fe687f
SSDEEP 49152:uv3go2QSaNpzyPllgamb0CZof/JskG3FarpLoGdITHHB72eh2NT:uvQo2QSaNpzyPllgamYCZof/Ju30
MD5 SHA1 SHA512 SSDEEP

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memory/2948-8-0x00007FFA170D0000-0x00007FFA1716D000-memory.dmp

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memory/2948-10-0x000000001C170000-0x000000001C1C0000-memory.dmp

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memory/2948-11-0x000000001C280000-0x000000001C332000-memory.dmp

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memory/3056-0-0x00007FFA170D0000-0x00007FFA1716D000-memory.dmp

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memory/3056-1-0x0000000000500000-0x000000000084E000-memory.dmp

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memory/3056-9-0x00007FFA170D0000-0x00007FFA1716D000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads