quasar | 677b229363785a056c131021f5bd3ff397134900fd99ae5638bb4323c3a2683c

Analysis

max time kernel
150s
max time network
169s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23-12-2024 19:31

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General

Target

honestly/MyPcGonnaExplode - Copy (101) - Copy - Copy - Copy.exe
Size

3.1MB
MD5

e35e3f1f51f82cb73c7b70451878c263
SHA1

764f6f6c17c5e3e3b88513975c94d635842f1bd8
SHA256

58606efb4cc178df08094a25618cda8a117ee7b06371f2d8ac980bd218d013c9
SHA512

5fcdfd52eb1dd60542563338ec240d4981a25d157d3fbc96be55706f950f48c6433ed87225ac9311308094954227bdca983a11c91472c5c29b860b48be24815b
SSDEEP

49152:PvyI22SsaNYfdPBldt698dBcjHjGVv9ToGdxTHHB72eh2NT:Pvf22SsaNYfdPBldt6+dBcjHjGVvp

Score

10^/10

quasar test spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

test

91.109.178.8:7070

Mutex

d933480a-c837-40f6-9fb3-c6401087e068

Attributes

encryption_key
2C0C62BDD42E42BC77F98F8E1EE713B43F791267
install_name
Client.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Quasar Client Startup
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
behavioral16/memory/632-1-0x0000000000DE0000-0x0000000001104000-memory.dmp	family_quasar
behavioral16/files/0x0008000000023c93-6.dat	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
2224	Client.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
1928	schtasks.exe
4340	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	632	MyPcGonnaExplode - Copy (101) - Copy - Copy - Copy.exe
Token: SeDebugPrivilege	2224	Client.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2224	Client.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 632 wrote to memory of 4340	632	MyPcGonnaExplode - Copy (101) - Copy - Copy - Copy.exe	81
PID 632 wrote to memory of 4340	632	MyPcGonnaExplode - Copy (101) - Copy - Copy - Copy.exe	81
PID 632 wrote to memory of 2224	632	MyPcGonnaExplode - Copy (101) - Copy - Copy - Copy.exe	83
PID 632 wrote to memory of 2224	632	MyPcGonnaExplode - Copy (101) - Copy - Copy - Copy.exe	83
PID 2224 wrote to memory of 1928	2224	Client.exe	86
PID 2224 wrote to memory of 1928	2224	Client.exe	86

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\honestly\MyPcGonnaExplode - Copy (101) - Copy - Copy - Copy.exe
"C:\Users\Admin\AppData\Local\Temp\honestly\MyPcGonnaExplode - Copy (101) - Copy - Copy - Copy.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:632
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:4340
- C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
  "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2224
- - C:\Windows\SYSTEM32\schtasks.exe
    "schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:1928

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\Client.exe

Filesize
3.1MB

MD5
e35e3f1f51f82cb73c7b70451878c263

SHA1
764f6f6c17c5e3e3b88513975c94d635842f1bd8

SHA256
58606efb4cc178df08094a25618cda8a117ee7b06371f2d8ac980bd218d013c9

SHA512
5fcdfd52eb1dd60542563338ec240d4981a25d157d3fbc96be55706f950f48c6433ed87225ac9311308094954227bdca983a11c91472c5c29b860b48be24815b

Download Submit
memory/632-0-0x00007FF93FB23000-0x00007FF93FB25000-memory.dmp

Filesize
8KB

Download
memory/632-1-0x0000000000DE0000-0x0000000001104000-memory.dmp

Filesize
3.1MB

Download
memory/632-2-0x00007FF93FB20000-0x00007FF9405E1000-memory.dmp

Filesize
10.8MB

Download
memory/632-9-0x00007FF93FB20000-0x00007FF9405E1000-memory.dmp

Filesize
10.8MB

Download
memory/2224-10-0x00007FF93FB20000-0x00007FF9405E1000-memory.dmp

Filesize
10.8MB

Download
memory/2224-11-0x00007FF93FB20000-0x00007FF9405E1000-memory.dmp

Filesize
10.8MB

Download
memory/2224-12-0x000000001BD50000-0x000000001BDA0000-memory.dmp

Filesize
320KB

Download
memory/2224-13-0x000000001C590000-0x000000001C642000-memory.dmp

Filesize
712KB

Download
memory/2224-14-0x00007FF93FB20000-0x00007FF9405E1000-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