quasar | 66bc9a4e0f2a4227a412decc3fca0aac864ea03220afac1ec097d35635fd3160

Analysis

max time kernel
145s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
27/03/2025, 22:26

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General

Target

Client-built.exe
Size

3.1MB
MD5

c29f45e56a8e5440afaa649f1e487413
SHA1

c30566ac9bc7b419293b5491c34953098b348ac7
SHA256

66bc9a4e0f2a4227a412decc3fca0aac864ea03220afac1ec097d35635fd3160
SHA512

c6098347f261b69e8d9be58ba069d23e0049c6c5682940aa05c158b98db864d99ab86aebb3968ba3745b23d2f76ca13a707b4615fd4d80ff192704a500406e54
SSDEEP

49152:fvXI22SsaNYfdPBldt698dBcjHymxNESEVk/i/LoGdGTHHB72eh2NT:fvY22SsaNYfdPBldt6+dBcjHbxMD

Score

10^/10

quasar skibdi spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Skibdi

7.tcp.eu.ngrok.io:16233

Mutex

53790885-f84e-49fe-b0f5-533bcec24786

Attributes

encryption_key
3428C8CDB24FFC56DF6BBDDEC9905C3058F7B092
install_name
WindowsDefender.exe
log_directory
Logs
reconnect_delay
3000
startup_key
WindowsDefender
subdirectory
WindowsDefender

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/1440-1-0x0000000000630000-0x0000000000954000-memory.dmp	family_quasar
behavioral2/files/0x00070000000240c4-5.dat	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
5080	WindowsDefender.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs

Web Service

T1102

flow	ioc
23	7.tcp.eu.ngrok.io
74	7.tcp.eu.ngrok.io
90	7.tcp.eu.ngrok.io

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
3400	schtasks.exe
4704	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1440	Client-built.exe
Token: SeDebugPrivilege	5080	WindowsDefender.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
5080	WindowsDefender.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
5080	WindowsDefender.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1440 wrote to memory of 3400	1440	Client-built.exe	91
PID 1440 wrote to memory of 3400	1440	Client-built.exe	91
PID 1440 wrote to memory of 5080	1440	Client-built.exe	93
PID 1440 wrote to memory of 5080	1440	Client-built.exe	93
PID 5080 wrote to memory of 4704	5080	WindowsDefender.exe	96
PID 5080 wrote to memory of 4704	5080	WindowsDefender.exe	96

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\Client-built.exe
"C:\Users\Admin\AppData\Local\Temp\Client-built.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1440
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks" /create /tn "WindowsDefender" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\WindowsDefender\WindowsDefender.exe" /rl HIGHEST /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:3400
- C:\Users\Admin\AppData\Roaming\WindowsDefender\WindowsDefender.exe
  "C:\Users\Admin\AppData\Roaming\WindowsDefender\WindowsDefender.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:5080
- - C:\Windows\SYSTEM32\schtasks.exe
    "schtasks" /create /tn "WindowsDefender" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\WindowsDefender\WindowsDefender.exe" /rl HIGHEST /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:4704

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

Web Service

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\WindowsDefender\WindowsDefender.exe

Filesize
3.1MB

MD5
c29f45e56a8e5440afaa649f1e487413

SHA1
c30566ac9bc7b419293b5491c34953098b348ac7

SHA256
66bc9a4e0f2a4227a412decc3fca0aac864ea03220afac1ec097d35635fd3160

SHA512
c6098347f261b69e8d9be58ba069d23e0049c6c5682940aa05c158b98db864d99ab86aebb3968ba3745b23d2f76ca13a707b4615fd4d80ff192704a500406e54

Download Submit
memory/1440-0-0x00007FFA3A463000-0x00007FFA3A465000-memory.dmp

Filesize
8KB

Download
memory/1440-1-0x0000000000630000-0x0000000000954000-memory.dmp

Filesize
3.1MB

Download
memory/1440-2-0x00007FFA3A460000-0x00007FFA3AF21000-memory.dmp

Filesize
10.8MB

Download
memory/1440-9-0x00007FFA3A460000-0x00007FFA3AF21000-memory.dmp

Filesize
10.8MB

Download
memory/5080-8-0x00007FFA3A460000-0x00007FFA3AF21000-memory.dmp

Filesize
10.8MB

Download
memory/5080-10-0x00007FFA3A460000-0x00007FFA3AF21000-memory.dmp

Filesize
10.8MB

Download
memory/5080-11-0x000000001C340000-0x000000001C390000-memory.dmp

Filesize
320KB

Download
memory/5080-12-0x000000001C450000-0x000000001C502000-memory.dmp

Filesize
712KB

Download
memory/5080-13-0x00007FFA3A460000-0x00007FFA3AF21000-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