quasar | eb695dfc6736d10a690da446229bbed7c63578e0176bafef8afb31deee7b7858

General

Target

eb695dfc6736d10a690da446229bbed7c63578e0176bafef8afb31deee7b7858.exe
Size

3.1MB
MD5

bf8c567800917f3d6b761f7f90d45ca6
SHA1

d6d5a9a6edcaba021c5e7f88c7c0d29008313c54
SHA256

eb695dfc6736d10a690da446229bbed7c63578e0176bafef8afb31deee7b7858
SHA512

e6e42c0252b7c85cf5f44a715b2d375cbaaf0e04ad3de5ed10e45f6dd1142f5e2ac76fcd276309094219de94abb61f2d80ebe9a75a256c92d7f10f411b9bcccd
SSDEEP

49152:mvht62XlaSFNWPjljiFa2RoUYIjSSe1J/IoGdZTHHB72eh2NT:mvL62XlaSFNWPjljiFXRoUYIjSSl

Score

10^/10

quasar sigma1 spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Sigma1

C2

192.168.119.132:4444

Mutex

bd1b4805-d5de-40c6-81b5-f0fbc9ff726b

Attributes

encryption_key
785E5EA57DA0FF65B19DDA61AC5B317ACE290421
install_name
GTA 6.exe
log_directory
Logs
reconnect_delay
3000
startup_key
GTA 6 FREE
subdirectory
SubDir

Signatures

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

Quasar payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4908-1-0x0000000000F10000-0x0000000001234000-memory.dmp	family_quasar
C:\Users\Admin\AppData\Roaming\SubDir\GTA 6.exe	family_quasar

Detects Windows executables referencing non-Windows User-Agents 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4908-1-0x0000000000F10000-0x0000000001234000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
C:\Users\Admin\AppData\Roaming\SubDir\GTA 6.exe	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4908-1-0x0000000000F10000-0x0000000001234000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
C:\Users\Admin\AppData\Roaming\SubDir\GTA 6.exe	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects executables containing common artifacts observed in infostealers 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4908-1-0x0000000000F10000-0x0000000001234000-memory.dmp	INDICATOR_SUSPICIOUS_GENInfoStealer
C:\Users\Admin\AppData\Roaming\SubDir\GTA 6.exe	INDICATOR_SUSPICIOUS_GENInfoStealer

Executes dropped EXE 1 IoCs

Processes:

GTA 6.exe

pid process

4232 GTA 6.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exeschtasks.exe

pid process

960 schtasks.exe
3512 schtasks.exe

pid	process
4232	GTA 6.exe

pid	process
960	schtasks.exe
3512	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

eb695dfc6736d10a690da446229bbed7c63578e0176bafef8afb31deee7b7858.exeGTA 6.exe

description	pid	process
Token: SeDebugPrivilege	4908	eb695dfc6736d10a690da446229bbed7c63578e0176bafef8afb31deee7b7858.exe
Token: SeDebugPrivilege	4232	GTA 6.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

GTA 6.exe

pid process

4232 GTA 6.exe
Suspicious use of SendNotifyMessage 1 IoCs

Processes:

GTA 6.exe

pid process

4232 GTA 6.exe

pid	process
4232	GTA 6.exe

pid	process
4232	GTA 6.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

eb695dfc6736d10a690da446229bbed7c63578e0176bafef8afb31deee7b7858.exeGTA 6.exe

description	pid	process	target process
PID 4908 wrote to memory of 960	4908	eb695dfc6736d10a690da446229bbed7c63578e0176bafef8afb31deee7b7858.exe	schtasks.exe
PID 4908 wrote to memory of 960	4908	eb695dfc6736d10a690da446229bbed7c63578e0176bafef8afb31deee7b7858.exe	schtasks.exe
PID 4908 wrote to memory of 4232	4908	eb695dfc6736d10a690da446229bbed7c63578e0176bafef8afb31deee7b7858.exe	GTA 6.exe
PID 4908 wrote to memory of 4232	4908	eb695dfc6736d10a690da446229bbed7c63578e0176bafef8afb31deee7b7858.exe	GTA 6.exe
PID 4232 wrote to memory of 3512	4232	GTA 6.exe	schtasks.exe
PID 4232 wrote to memory of 3512	4232	GTA 6.exe	schtasks.exe

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\eb695dfc6736d10a690da446229bbed7c63578e0176bafef8afb31deee7b7858.exe
"C:\Users\Admin\AppData\Local\Temp\eb695dfc6736d10a690da446229bbed7c63578e0176bafef8afb31deee7b7858.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4908

C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "GTA 6 FREE" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\GTA 6.exe" /rl HIGHEST /f
2⤵
- Creates scheduled task(s)
PID:960

C:\Users\Admin\AppData\Roaming\SubDir\GTA 6.exe
"C:\Users\Admin\AppData\Roaming\SubDir\GTA 6.exe"
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4232

C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "GTA 6 FREE" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\GTA 6.exe" /rl HIGHEST /f
3⤵
- Creates scheduled task(s)
PID:3512

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Query Registry

1

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Roaming\SubDir\GTA 6.exe
Filesize
3.1MB

MD5
bf8c567800917f3d6b761f7f90d45ca6

SHA1
d6d5a9a6edcaba021c5e7f88c7c0d29008313c54

SHA256
eb695dfc6736d10a690da446229bbed7c63578e0176bafef8afb31deee7b7858

SHA512
e6e42c0252b7c85cf5f44a715b2d375cbaaf0e04ad3de5ed10e45f6dd1142f5e2ac76fcd276309094219de94abb61f2d80ebe9a75a256c92d7f10f411b9bcccd

Download Submit
memory/4232-9-0x00007FFA19510000-0x00007FFA19FD1000-memory.dmp

Filesize
10.8MB

Download
memory/4232-10-0x00007FFA19510000-0x00007FFA19FD1000-memory.dmp

Filesize
10.8MB

Download
memory/4232-11-0x000000001C190000-0x000000001C1E0000-memory.dmp

Filesize
320KB

Download
memory/4232-12-0x000000001C2A0000-0x000000001C352000-memory.dmp

Filesize
712KB

Download
memory/4232-13-0x00007FFA19510000-0x00007FFA19FD1000-memory.dmp

Filesize
10.8MB

Download
memory/4908-0-0x00007FFA19513000-0x00007FFA19515000-memory.dmp

Filesize
8KB

Download
memory/4908-1-0x0000000000F10000-0x0000000001234000-memory.dmp

Filesize
3.1MB

Download
memory/4908-2-0x00007FFA19510000-0x00007FFA19FD1000-memory.dmp

Filesize
10.8MB

Download
memory/4908-8-0x00007FFA19510000-0x00007FFA19FD1000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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