quasar | 942e216bf41aea0642c7f219560630dc21d29219920e90be79e990e6387a3a9a

Analysis

max time kernel
126s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
16-12-2024 14:56

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General

Target

942e216bf41aea0642c7f219560630dc21d29219920e90be79e990e6387a3a9a.exe
Size

3.1MB
MD5

c3e8ea545254bb9d01bff3f53668e04f
SHA1

84bfec02d33d829736407744504c271f71c21078
SHA256

942e216bf41aea0642c7f219560630dc21d29219920e90be79e990e6387a3a9a
SHA512

84933b3fc7a888673079c2fccf987189777fc20831eb76cc3f4b94cf960c0c74831b98892781f2e9053c97de7818922fd6a950a8aaccaf696903b536972f0b38
SSDEEP

49152:OUd1/DM2zv8aMlqCPwln5+Hjdh+Euvr9+VZzNAxoGnjwTHHB72eh2NTe:OUPrM2zEaMlqCPwln5+Ddh+Zvr4zq1k

Score

10^/10

quasar rat1 spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

rat1

147.185.221.24:15249

Mutex

da67ff1b-f911-4ad4-a51c-c7c5bd13aeb3

Attributes

encryption_key
AB7A97D9E0F9B0A44190A0D500EAB7AF37629802
install_name
System32.exe
log_directory
Logs
reconnect_delay
3000
startup_key
System32
subdirectory
System32

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/4332-1-0x0000000000780000-0x0000000000AA4000-memory.dmp	family_quasar
behavioral2/files/0x000c000000023b74-4.dat	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
4688	System32.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
3296	schtasks.exe
4828	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4332	942e216bf41aea0642c7f219560630dc21d29219920e90be79e990e6387a3a9a.exe
Token: SeDebugPrivilege	4688	System32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4688	System32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4332 wrote to memory of 3296	4332	942e216bf41aea0642c7f219560630dc21d29219920e90be79e990e6387a3a9a.exe	85
PID 4332 wrote to memory of 3296	4332	942e216bf41aea0642c7f219560630dc21d29219920e90be79e990e6387a3a9a.exe	85
PID 4332 wrote to memory of 4688	4332	942e216bf41aea0642c7f219560630dc21d29219920e90be79e990e6387a3a9a.exe	87
PID 4332 wrote to memory of 4688	4332	942e216bf41aea0642c7f219560630dc21d29219920e90be79e990e6387a3a9a.exe	87
PID 4688 wrote to memory of 4828	4688	System32.exe	88
PID 4688 wrote to memory of 4828	4688	System32.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\942e216bf41aea0642c7f219560630dc21d29219920e90be79e990e6387a3a9a.exe
"C:\Users\Admin\AppData\Local\Temp\942e216bf41aea0642c7f219560630dc21d29219920e90be79e990e6387a3a9a.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4332
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks" /create /tn "System32" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\System32\System32.exe" /rl HIGHEST /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:3296
- C:\Users\Admin\AppData\Roaming\System32\System32.exe
  "C:\Users\Admin\AppData\Roaming\System32\System32.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4688
- - C:\Windows\SYSTEM32\schtasks.exe
    "schtasks" /create /tn "System32" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\System32\System32.exe" /rl HIGHEST /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:4828

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\System32\System32.exe

Filesize
3.1MB

MD5
c3e8ea545254bb9d01bff3f53668e04f

SHA1
84bfec02d33d829736407744504c271f71c21078

SHA256
942e216bf41aea0642c7f219560630dc21d29219920e90be79e990e6387a3a9a

SHA512
84933b3fc7a888673079c2fccf987189777fc20831eb76cc3f4b94cf960c0c74831b98892781f2e9053c97de7818922fd6a950a8aaccaf696903b536972f0b38

Download Submit
memory/4332-0-0x00007FFB67ED3000-0x00007FFB67ED5000-memory.dmp

Filesize
8KB

Download
memory/4332-1-0x0000000000780000-0x0000000000AA4000-memory.dmp

Filesize
3.1MB

Download
memory/4332-2-0x00007FFB67ED0000-0x00007FFB68991000-memory.dmp

Filesize
10.8MB

Download
memory/4332-9-0x00007FFB67ED0000-0x00007FFB68991000-memory.dmp

Filesize
10.8MB

Download
memory/4688-8-0x00007FFB67ED0000-0x00007FFB68991000-memory.dmp

Filesize
10.8MB

Download
memory/4688-10-0x00007FFB67ED0000-0x00007FFB68991000-memory.dmp

Filesize
10.8MB

Download
memory/4688-11-0x000000001BA90000-0x000000001BAE0000-memory.dmp

Filesize
320KB

Download
memory/4688-12-0x000000001C430000-0x000000001C4E2000-memory.dmp

Filesize
712KB

Download
memory/4688-13-0x00007FFB67ED0000-0x00007FFB68991000-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