quasar | f9a036faaf0d8069cad71070e3327f2b6318e7026338c32eb46dc23c18ab1291

Analysis

max time kernel
18s
max time network
24s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20241211-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20241211-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
20-12-2024 04:25

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General

Target

Aimbot MTA.exe
Size

3.3MB
MD5

232fbce8fc20397039e7115d6736c5f4
SHA1

ec3f9e41474a0e2597c5aec4be25158ccd2d4c68
SHA256

f9a036faaf0d8069cad71070e3327f2b6318e7026338c32eb46dc23c18ab1291
SHA512

b00d44a3fc0685b917a50008d66efd44c697692a7f02b2bc18f3c325642a8bb94d5966bd66d21fa045aa24d02a88600b3b66122e3a3f6309b3854f6820bc41de
SSDEEP

49152:hvSI22SsaNYfdPBldt698dBcjHbx6EMkok/JKooGdaTHHB72eh2NT:hv/22SsaNYfdPBldt6+dBcjHbxj9

Score

10^/10

quasar office04 spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

azxq0ap.localto.net:3425

Mutex

e51e2b65-e963-4051-9736-67d57ed46798

Attributes

encryption_key
AEA258EF65BF1786F0F767C0BE2497ECC304C46F
install_name
WindowsUpdate.exe
log_directory
Logs
reconnect_delay
3000
startup_key
WindowsUpdate
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/1984-1-0x0000000000590000-0x00000000008E6000-memory.dmp	family_quasar
behavioral1/files/0x00290000000460e9-3.dat	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
216	WindowsUpdate.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
1848	schtasks.exe
780	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1984	Aimbot MTA.exe
Token: SeDebugPrivilege	216	WindowsUpdate.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
216	WindowsUpdate.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1984 wrote to memory of 1848	1984	Aimbot MTA.exe	82
PID 1984 wrote to memory of 1848	1984	Aimbot MTA.exe	82
PID 1984 wrote to memory of 216	1984	Aimbot MTA.exe	84
PID 1984 wrote to memory of 216	1984	Aimbot MTA.exe	84
PID 216 wrote to memory of 780	216	WindowsUpdate.exe	87
PID 216 wrote to memory of 780	216	WindowsUpdate.exe	87

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\Aimbot MTA.exe
"C:\Users\Admin\AppData\Local\Temp\Aimbot MTA.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1984
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks" /create /tn "WindowsUpdate" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\WindowsUpdate.exe" /rl HIGHEST /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1848
- C:\Users\Admin\AppData\Roaming\SubDir\WindowsUpdate.exe
  "C:\Users\Admin\AppData\Roaming\SubDir\WindowsUpdate.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:216
- - C:\Windows\SYSTEM32\schtasks.exe
    "schtasks" /create /tn "WindowsUpdate" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\WindowsUpdate.exe" /rl HIGHEST /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:780

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\SubDir\WindowsUpdate.exe

Filesize
3.3MB

MD5
232fbce8fc20397039e7115d6736c5f4

SHA1
ec3f9e41474a0e2597c5aec4be25158ccd2d4c68

SHA256
f9a036faaf0d8069cad71070e3327f2b6318e7026338c32eb46dc23c18ab1291

SHA512
b00d44a3fc0685b917a50008d66efd44c697692a7f02b2bc18f3c325642a8bb94d5966bd66d21fa045aa24d02a88600b3b66122e3a3f6309b3854f6820bc41de

Download Submit
memory/216-6-0x00007FFD91600000-0x00007FFD920C2000-memory.dmp

Filesize
10.8MB

Download
memory/216-7-0x00007FFD91600000-0x00007FFD920C2000-memory.dmp

Filesize
10.8MB

Download
memory/216-8-0x0000000003350000-0x00000000033A0000-memory.dmp

Filesize
320KB

Download
memory/216-9-0x000000001CF70000-0x000000001D022000-memory.dmp

Filesize
712KB

Download
memory/216-12-0x000000001CF10000-0x000000001CF22000-memory.dmp

Filesize
72KB

Download
memory/216-13-0x000000001DA70000-0x000000001DAAC000-memory.dmp

Filesize
240KB

Download
memory/216-14-0x00007FFD91600000-0x00007FFD920C2000-memory.dmp

Filesize
10.8MB

Download
memory/1984-0-0x00007FFD91603000-0x00007FFD91605000-memory.dmp

Filesize
8KB

Download
memory/1984-1-0x0000000000590000-0x00000000008E6000-memory.dmp

Filesize
3.3MB

Download
memory/1984-2-0x00007FFD91600000-0x00007FFD920C2000-memory.dmp

Filesize
10.8MB

Download
memory/1984-5-0x00007FFD91600000-0x00007FFD920C2000-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