quasar | af68c805613ad9d44fe9e4bc4ccd30ba8d374b6faf129a7210c6384416be3ef9

Analysis

max time kernel
8s
max time network
9s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-12-2024 21:52

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General

Target

anotherport.exe
Size

3.1MB
MD5

886cbf1c76a1c72243b8b5b09d8130bf
SHA1

294ec2078c9d08f907f8c7bfb5559e5748949c9f
SHA256

af68c805613ad9d44fe9e4bc4ccd30ba8d374b6faf129a7210c6384416be3ef9
SHA512

afa34cbda23d4be19c8cb940f2708eee6c3eb67c98cf2a3264a8f6b33b7ed2989be150eb62ef396eaabd73105bd5be1ea3bdc5b5834d772e5342a5f3c083fc34
SSDEEP

49152:DvGI22SsaNYfdPBldt698dBcjH4Q8RJ6KbR3LoGdpKTHHB72eh2NT:DvL22SsaNYfdPBldt6+dBcjH4Q8RJ6k

Score

10^/10

quasar axotrojan spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Axotrojan

193.161.193.99:46972

Mutex

26f86d86-6a8f-46ae-bb91-fc1127efd3f6

Attributes

encryption_key
4B13DC71783277444E966E1D66F9171ABFC15E88
install_name
Clientformyslut.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Axo 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
behavioral1/memory/2112-1-0x00000000003B0000-0x00000000006D4000-memory.dmp	family_quasar
behavioral1/files/0x0007000000023c92-5.dat	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
3724	Clientformyslut.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system32\SubDir\Clientformyslut.exe	anotherport.exe
File opened for modification	C:\Windows\system32\SubDir\Clientformyslut.exe	anotherport.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
916	schtasks.exe
2324	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2112	anotherport.exe
Token: SeDebugPrivilege	3724	Clientformyslut.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3724	Clientformyslut.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2112 wrote to memory of 916	2112	anotherport.exe	83
PID 2112 wrote to memory of 916	2112	anotherport.exe	83
PID 2112 wrote to memory of 3724	2112	anotherport.exe	85
PID 2112 wrote to memory of 3724	2112	anotherport.exe	85
PID 3724 wrote to memory of 2324	3724	Clientformyslut.exe	86
PID 3724 wrote to memory of 2324	3724	Clientformyslut.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\anotherport.exe
"C:\Users\Admin\AppData\Local\Temp\anotherport.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2112
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks" /create /tn "Axo startup" /sc ONLOGON /tr "C:\Windows\system32\SubDir\Clientformyslut.exe" /rl HIGHEST /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:916
- C:\Windows\system32\SubDir\Clientformyslut.exe
  "C:\Windows\system32\SubDir\Clientformyslut.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3724
- - C:\Windows\SYSTEM32\schtasks.exe
    "schtasks" /create /tn "Axo startup" /sc ONLOGON /tr "C:\Windows\system32\SubDir\Clientformyslut.exe" /rl HIGHEST /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2324

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:\Windows\System32\SubDir\Clientformyslut.exe

Filesize
3.1MB

MD5
886cbf1c76a1c72243b8b5b09d8130bf

SHA1
294ec2078c9d08f907f8c7bfb5559e5748949c9f

SHA256
af68c805613ad9d44fe9e4bc4ccd30ba8d374b6faf129a7210c6384416be3ef9

SHA512
afa34cbda23d4be19c8cb940f2708eee6c3eb67c98cf2a3264a8f6b33b7ed2989be150eb62ef396eaabd73105bd5be1ea3bdc5b5834d772e5342a5f3c083fc34

Download Submit
memory/2112-0-0x00007FFA102C3000-0x00007FFA102C5000-memory.dmp

Filesize
8KB

Download
memory/2112-1-0x00000000003B0000-0x00000000006D4000-memory.dmp

Filesize
3.1MB

Download
memory/2112-2-0x00007FFA102C0000-0x00007FFA10D81000-memory.dmp

Filesize
10.8MB

Download
memory/2112-8-0x00007FFA102C0000-0x00007FFA10D81000-memory.dmp

Filesize
10.8MB

Download
memory/3724-9-0x00007FFA102C0000-0x00007FFA10D81000-memory.dmp

Filesize
10.8MB

Download
memory/3724-10-0x00007FFA102C0000-0x00007FFA10D81000-memory.dmp

Filesize
10.8MB

Download
memory/3724-11-0x000000001C6D0000-0x000000001C720000-memory.dmp

Filesize
320KB

Download
memory/3724-12-0x000000001C7E0000-0x000000001C892000-memory.dmp

Filesize
712KB

Download
memory/3724-16-0x000000001C760000-0x000000001C79C000-memory.dmp

Filesize
240KB

Download
memory/3724-15-0x00000000036F0000-0x0000000003702000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads