quasar | 66bc9a4e0f2a4227a412decc3fca0aac864ea03220afac1ec097d35635fd3160

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

C2

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 3 IoCs

resource	yara_rule
behavioral1/memory/2564-1-0x0000000000830000-0x0000000000B54000-memory.dmp	family_quasar
behavioral1/files/0x0007000000018718-5.dat	family_quasar
behavioral1/memory/2272-9-0x0000000000BC0000-0x0000000000EE4000-memory.dmp	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
2272	WindowsDefender.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 5 IoCs

Web Service

T1102

flow	ioc
2	7.tcp.eu.ngrok.io
16	7.tcp.eu.ngrok.io
18	7.tcp.eu.ngrok.io
32	7.tcp.eu.ngrok.io
34	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
1916	schtasks.exe
2692	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2564	Client-built.exe
Token: SeDebugPrivilege	2272	WindowsDefender.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2272	WindowsDefender.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2272	WindowsDefender.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2564 wrote to memory of 1916	2564	Client-built.exe	30
PID 2564 wrote to memory of 1916	2564	Client-built.exe	30
PID 2564 wrote to memory of 1916	2564	Client-built.exe	30
PID 2564 wrote to memory of 2272	2564	Client-built.exe	32
PID 2564 wrote to memory of 2272	2564	Client-built.exe	32
PID 2564 wrote to memory of 2272	2564	Client-built.exe	32
PID 2272 wrote to memory of 2692	2272	WindowsDefender.exe	33
PID 2272 wrote to memory of 2692	2272	WindowsDefender.exe	33
PID 2272 wrote to memory of 2692	2272	WindowsDefender.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\Client-built.exe
"C:\Users\Admin\AppData\Local\Temp\Client-built.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2564
- 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:1916
- 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:2272
- - 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:2692

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

Web Service

1

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/2272-8-0x000007FEF5A00000-0x000007FEF63EC000-memory.dmp

Filesize
9.9MB

Download
memory/2272-9-0x0000000000BC0000-0x0000000000EE4000-memory.dmp

Filesize
3.1MB

Download
memory/2272-10-0x000007FEF5A00000-0x000007FEF63EC000-memory.dmp

Filesize
9.9MB

Download
memory/2272-11-0x000007FEF5A00000-0x000007FEF63EC000-memory.dmp

Filesize
9.9MB

Download
memory/2564-0-0x000007FEF5A03000-0x000007FEF5A04000-memory.dmp

Filesize
4KB

Download
memory/2564-1-0x0000000000830000-0x0000000000B54000-memory.dmp

Filesize
3.1MB

Download
memory/2564-2-0x000007FEF5A00000-0x000007FEF63EC000-memory.dmp

Filesize
9.9MB

Download
memory/2564-7-0x000007FEF5A00000-0x000007FEF63EC000-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