quasar | 9e1a126888447375a41859f813e03755a37c4cf108c90108ad8fef598360a7b2

General

Target

9e1a126888447375a41859f813e03755a37c4cf108c90108ad8fef598360a7b2.exe
Size

3.1MB
MD5

265cd3ec1c1ba2c6215c54b5cd39024c
SHA1

303c396a4f460dc88397af1ae2dc9e9b4a214b64
SHA256

9e1a126888447375a41859f813e03755a37c4cf108c90108ad8fef598360a7b2
SHA512

448f0cb2f942b3d92a53f4823299bf78639989b07d02706e25ec3648efb4dd894563763bd9de8fae1ac77311d89833b3f75afeb6b17c03ad3a92cde15af9a659
SSDEEP

49152:rvFt62XlaSFNWPjljiFa2RoUYIR4mFmzALoGd3BiTHHB72eh2NT:rv362XlaSFNWPjljiFXRoUYIR4mX

Score

10^/10

quasar 0 spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

0

C2

64.95.11.214:4782

Mutex

c944155f-3f97-4c60-a0c2-62d9c9732c6e

Attributes

encryption_key
49CED1D49D4E76E51A8DBC72FF6ADC7073955387
install_name
audiodg.exe
log_directory
Logs
reconnect_delay
3000
startup_key
audiodg
subdirectory
Windows

Signatures

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

Quasar payload 3 IoCs

resource	yara_rule
behavioral1/memory/2284-1-0x0000000001280000-0x00000000015A4000-memory.dmp	family_quasar
behavioral1/files/0x0008000000014b28-6.dat	family_quasar
behavioral1/memory/2196-8-0x0000000000F10000-0x0000000001234000-memory.dmp	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
2196	audiodg.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
2332	schtasks.exe
2780	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2284	9e1a126888447375a41859f813e03755a37c4cf108c90108ad8fef598360a7b2.exe
Token: SeDebugPrivilege	2196	audiodg.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2196	audiodg.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2196	audiodg.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2284 wrote to memory of 2332	2284	9e1a126888447375a41859f813e03755a37c4cf108c90108ad8fef598360a7b2.exe	28
PID 2284 wrote to memory of 2332	2284	9e1a126888447375a41859f813e03755a37c4cf108c90108ad8fef598360a7b2.exe	28
PID 2284 wrote to memory of 2332	2284	9e1a126888447375a41859f813e03755a37c4cf108c90108ad8fef598360a7b2.exe	28
PID 2284 wrote to memory of 2196	2284	9e1a126888447375a41859f813e03755a37c4cf108c90108ad8fef598360a7b2.exe	30
PID 2284 wrote to memory of 2196	2284	9e1a126888447375a41859f813e03755a37c4cf108c90108ad8fef598360a7b2.exe	30
PID 2284 wrote to memory of 2196	2284	9e1a126888447375a41859f813e03755a37c4cf108c90108ad8fef598360a7b2.exe	30
PID 2196 wrote to memory of 2780	2196	audiodg.exe	31
PID 2196 wrote to memory of 2780	2196	audiodg.exe	31
PID 2196 wrote to memory of 2780	2196	audiodg.exe	31

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\9e1a126888447375a41859f813e03755a37c4cf108c90108ad8fef598360a7b2.exe
"C:\Users\Admin\AppData\Local\Temp\9e1a126888447375a41859f813e03755a37c4cf108c90108ad8fef598360a7b2.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2284
- C:\Windows\system32\schtasks.exe
  "schtasks" /create /tn "audiodg" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Windows\audiodg.exe" /rl HIGHEST /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2332
- C:\Users\Admin\AppData\Roaming\Windows\audiodg.exe
  "C:\Users\Admin\AppData\Roaming\Windows\audiodg.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2196
- - C:\Windows\system32\schtasks.exe
    "schtasks" /create /tn "audiodg" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Windows\audiodg.exe" /rl HIGHEST /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2780

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Windows\audiodg.exe

Filesize
3.1MB

MD5
265cd3ec1c1ba2c6215c54b5cd39024c

SHA1
303c396a4f460dc88397af1ae2dc9e9b4a214b64

SHA256
9e1a126888447375a41859f813e03755a37c4cf108c90108ad8fef598360a7b2

SHA512
448f0cb2f942b3d92a53f4823299bf78639989b07d02706e25ec3648efb4dd894563763bd9de8fae1ac77311d89833b3f75afeb6b17c03ad3a92cde15af9a659

Download Submit
memory/2196-8-0x0000000000F10000-0x0000000001234000-memory.dmp

Filesize
3.1MB

Download
memory/2196-11-0x000007FEF5230000-0x000007FEF5C1C000-memory.dmp

Filesize
9.9MB

Download
memory/2196-10-0x000007FEF5230000-0x000007FEF5C1C000-memory.dmp

Filesize
9.9MB

Download
memory/2196-12-0x000007FEF5230000-0x000007FEF5C1C000-memory.dmp

Filesize
9.9MB

Download
memory/2284-0-0x000007FEF5233000-0x000007FEF5234000-memory.dmp

Filesize
4KB

Download
memory/2284-1-0x0000000001280000-0x00000000015A4000-memory.dmp

Filesize
3.1MB

Download
memory/2284-2-0x000007FEF5230000-0x000007FEF5C1C000-memory.dmp

Filesize
9.9MB

Download
memory/2284-9-0x000007FEF5230000-0x000007FEF5C1C000-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