quasar | cb6e5498783057d293cdd184505d725b2c0e9ffabaafd9faebc4d156c36533b8

Analysis

max time kernel
126s
max time network
137s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
28-12-2024 20:26

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General

Target

pass is 1/driver (run to map it).exe
Size

3.1MB
MD5

b854dc5efcf3779f9cc0db2161c4f5da
SHA1

3842b9fc6d342482bd674e52bdc536921e1f1a6a
SHA256

6fd1a64cabca8ccb61cacdc5b9c28726068987e23ba89c9ba387cb2bb8c4dee7
SHA512

7de23a24b160e35da92cfb903cbe92f3745bbc1bb5c13b81c0bfc08f7ac192a10ed2780f546425abd8dd8c3056172e8836bc35015453ff23dbd75b60f46cf418
SSDEEP

49152:mvQt62XlaSFNWPjljiFa2RoUYICCX1JuLoGdoCvTHHB72eh2NT:mvc62XlaSFNWPjljiFXRoUYICCI4

Score

10^/10

quasar awp spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

AWP

re-drunk.gl.at.ply.gg:14309

Mutex

220e3868-c992-4d03-83a8-2affbb617e80

Attributes

encryption_key
6C0A2B10B7809180680C7DAF60E1C0D9CD0AF5ED
install_name
Client.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Runtime Broker
subdirectory
ui

Signatures

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

Quasar payload 3 IoCs

resource	yara_rule
behavioral13/memory/1992-1-0x0000000000930000-0x0000000000C54000-memory.dmp	family_quasar
behavioral13/files/0x00060000000173fb-5.dat	family_quasar
behavioral13/memory/772-8-0x0000000000EB0000-0x00000000011D4000-memory.dmp	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
772	Client.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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
2356	schtasks.exe
1164	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1992	driver (run to map it).exe
Token: SeDebugPrivilege	772	Client.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
772	Client.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
772	Client.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
772	Client.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1992 wrote to memory of 2356	1992	driver (run to map it).exe	30
PID 1992 wrote to memory of 2356	1992	driver (run to map it).exe	30
PID 1992 wrote to memory of 2356	1992	driver (run to map it).exe	30
PID 1992 wrote to memory of 772	1992	driver (run to map it).exe	32
PID 1992 wrote to memory of 772	1992	driver (run to map it).exe	32
PID 1992 wrote to memory of 772	1992	driver (run to map it).exe	32
PID 772 wrote to memory of 1164	772	Client.exe	33
PID 772 wrote to memory of 1164	772	Client.exe	33
PID 772 wrote to memory of 1164	772	Client.exe	33

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\pass is 1\driver (run to map it).exe
"C:\Users\Admin\AppData\Local\Temp\pass is 1\driver (run to map it).exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1992
- C:\Windows\system32\schtasks.exe
  "schtasks" /create /tn "Runtime Broker" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\ui\Client.exe" /rl HIGHEST /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2356
- C:\Users\Admin\AppData\Roaming\ui\Client.exe
  "C:\Users\Admin\AppData\Roaming\ui\Client.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:772
- - C:\Windows\system32\schtasks.exe
    "schtasks" /create /tn "Runtime Broker" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\ui\Client.exe" /rl HIGHEST /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:1164

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\ui\Client.exe

Filesize
3.1MB

MD5
b854dc5efcf3779f9cc0db2161c4f5da

SHA1
3842b9fc6d342482bd674e52bdc536921e1f1a6a

SHA256
6fd1a64cabca8ccb61cacdc5b9c28726068987e23ba89c9ba387cb2bb8c4dee7

SHA512
7de23a24b160e35da92cfb903cbe92f3745bbc1bb5c13b81c0bfc08f7ac192a10ed2780f546425abd8dd8c3056172e8836bc35015453ff23dbd75b60f46cf418

Download Submit
memory/772-8-0x0000000000EB0000-0x00000000011D4000-memory.dmp

Filesize
3.1MB

Download
memory/772-10-0x000007FEF5280000-0x000007FEF5C6C000-memory.dmp

Filesize
9.9MB

Download
memory/772-9-0x000007FEF5280000-0x000007FEF5C6C000-memory.dmp

Filesize
9.9MB

Download
memory/772-11-0x000007FEF5280000-0x000007FEF5C6C000-memory.dmp

Filesize
9.9MB

Download
memory/1992-0-0x000007FEF5283000-0x000007FEF5284000-memory.dmp

Filesize
4KB

Download
memory/1992-1-0x0000000000930000-0x0000000000C54000-memory.dmp

Filesize
3.1MB

Download
memory/1992-2-0x000007FEF5280000-0x000007FEF5C6C000-memory.dmp

Filesize
9.9MB

Download
memory/1992-7-0x000007FEF5280000-0x000007FEF5C6C000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads