quasar | 6f57eaa317afcb0a3ad48f011031de7e0a32057e55ccbeba6961f27f829e745a

Analysis

max time kernel
148s
max time network
151s
platform
windows11-21h2_x64
resource
win11-20241007-en
resource tags

arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
submitted
09-12-2024 18:54

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General

Target

rararararararaaar.exe
Size

3.1MB
MD5

81a8b86d10e24aa1dce9abe78a6003e1
SHA1

94b9154eef6c092ad539b57449a458ec0dfcd196
SHA256

6f57eaa317afcb0a3ad48f011031de7e0a32057e55ccbeba6961f27f829e745a
SHA512

51e8a74ecc49ce6218bfe59b7c01828c3e8c76af542c98dc5fd1a9f94157b4febd8c19995213390580f993f2f929e6139becf51e25b94404fdcad126cf39f395
SSDEEP

49152:DvrI22SsaNYfdPBldt698dBcjHgERJ6hbR3LoGdgTHHB72eh2NT:DvU22SsaNYfdPBldt6+dBcjHgERJ6D

Score

10^/10

quasar roar spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

roar

lkjhblskhg-49405.portmap.host:49405

Mutex

5561e906-e428-4f00-a29e-9139fc28a77c

Attributes

encryption_key
C5904FDD788EA00F921C538B9FE80C0B0A0DE728
install_name
roar.exe
log_directory
Logs
reconnect_delay
3000
startup_key
discord
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/4020-1-0x0000000000070000-0x0000000000394000-memory.dmp	family_quasar
behavioral2/files/0x001b00000002aaa8-5.dat	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
928	roar.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
4744	schtasks.exe
808	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4020	rararararararaaar.exe
Token: SeDebugPrivilege	928	roar.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
928	roar.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4020 wrote to memory of 4744	4020	rararararararaaar.exe	77
PID 4020 wrote to memory of 4744	4020	rararararararaaar.exe	77
PID 4020 wrote to memory of 928	4020	rararararararaaar.exe	79
PID 4020 wrote to memory of 928	4020	rararararararaaar.exe	79
PID 928 wrote to memory of 808	928	roar.exe	80
PID 928 wrote to memory of 808	928	roar.exe	80

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\rararararararaaar.exe
"C:\Users\Admin\AppData\Local\Temp\rararararararaaar.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4020
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks" /create /tn "discord" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\roar.exe" /rl HIGHEST /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:4744
- C:\Users\Admin\AppData\Roaming\SubDir\roar.exe
  "C:\Users\Admin\AppData\Roaming\SubDir\roar.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:928
- - C:\Windows\SYSTEM32\schtasks.exe
    "schtasks" /create /tn "discord" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\roar.exe" /rl HIGHEST /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:808

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\roar.exe

Filesize
3.1MB

MD5
81a8b86d10e24aa1dce9abe78a6003e1

SHA1
94b9154eef6c092ad539b57449a458ec0dfcd196

SHA256
6f57eaa317afcb0a3ad48f011031de7e0a32057e55ccbeba6961f27f829e745a

SHA512
51e8a74ecc49ce6218bfe59b7c01828c3e8c76af542c98dc5fd1a9f94157b4febd8c19995213390580f993f2f929e6139becf51e25b94404fdcad126cf39f395

Download Submit
memory/928-10-0x00007FFDC8C30000-0x00007FFDC96F2000-memory.dmp

Filesize
10.8MB

Download
memory/928-11-0x00007FFDC8C30000-0x00007FFDC96F2000-memory.dmp

Filesize
10.8MB

Download
memory/928-12-0x000000001C2C0000-0x000000001C310000-memory.dmp

Filesize
320KB

Download
memory/928-13-0x000000001C3D0000-0x000000001C482000-memory.dmp

Filesize
712KB

Download
memory/928-14-0x00007FFDC8C30000-0x00007FFDC96F2000-memory.dmp

Filesize
10.8MB

Download
memory/4020-0-0x00007FFDC8C33000-0x00007FFDC8C35000-memory.dmp

Filesize
8KB

Download
memory/4020-1-0x0000000000070000-0x0000000000394000-memory.dmp

Filesize
3.1MB

Download
memory/4020-2-0x00007FFDC8C30000-0x00007FFDC96F2000-memory.dmp

Filesize
10.8MB

Download
memory/4020-9-0x00007FFDC8C30000-0x00007FFDC96F2000-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