quasar | 30f2c33a8795270263434282d667e0510f57de3946c30df57ceb3f82d35f430b

Analysis

max time kernel
140s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
03-11-2024 21:08

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General

Target

MoonX.exe
Size

3.1MB
MD5

067797d057419e6750a73dbc9891abc6
SHA1

38d7ed247ce382277fae0a89ce2bba37d6562857
SHA256

30f2c33a8795270263434282d667e0510f57de3946c30df57ceb3f82d35f430b
SHA512

6eac5b1f361f7173715cba3660d43f06ca342c838d393bfd736e00bf4a4e4da37e95e7e74fbcf40393b9618c173b63221a4c314c3a26e1d21bf8eb880a8ad0a5
SSDEEP

49152:CvIt62XlaSFNWPjljiFa2RoUYIVoOEEqknk/8FvoGdATHHB72eh2NT:CvE62XlaSFNWPjljiFXRoUYIVoOHV

Score

10^/10

quasar moonx spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

MoonX

192.168.1.234:4782

Mutex

4b0292ec-655c-4352-9fd0-766e48d4ced8

Attributes

encryption_key
D553FD53C63DADADB0E2A70013878DFCCBFA988F
install_name
MoonX.exe
log_directory
Logs
reconnect_delay
3000
startup_key
MoonX
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
behavioral2/memory/4880-1-0x0000000000650000-0x0000000000974000-memory.dmp	family_quasar
behavioral2/files/0x000a000000023b8e-6.dat	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
4012	MoonX.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
3808	schtasks.exe
4640	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4880	MoonX.exe
Token: SeDebugPrivilege	4012	MoonX.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4880 wrote to memory of 3808	4880	MoonX.exe	86
PID 4880 wrote to memory of 3808	4880	MoonX.exe	86
PID 4880 wrote to memory of 4012	4880	MoonX.exe	88
PID 4880 wrote to memory of 4012	4880	MoonX.exe	88
PID 4012 wrote to memory of 4640	4012	MoonX.exe	92
PID 4012 wrote to memory of 4640	4012	MoonX.exe	92

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\MoonX.exe
"C:\Users\Admin\AppData\Local\Temp\MoonX.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4880
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks" /create /tn "MoonX" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\MoonX.exe" /rl HIGHEST /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:3808
- C:\Users\Admin\AppData\Roaming\SubDir\MoonX.exe
  "C:\Users\Admin\AppData\Roaming\SubDir\MoonX.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4012
- - C:\Windows\SYSTEM32\schtasks.exe
    "schtasks" /create /tn "MoonX" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\MoonX.exe" /rl HIGHEST /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:4640

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\Local\Microsoft\CLR_v4.0\UsageLogs\MoonX.exe.log

Filesize
1KB

MD5
baf55b95da4a601229647f25dad12878

SHA1
abc16954ebfd213733c4493fc1910164d825cac8

SHA256
ee954c5d8156fd8890e582c716e5758ed9b33721258f10e758bdc31ccbcb1924

SHA512
24f502fedb1a305d0d7b08857ffc1db9b2359ff34e06d5748ecc84e35c985f29a20d9f0a533bea32d234ab37097ec0481620c63b14ac89b280e75e14d19fd545

Download Submit
C:\Users\Admin\AppData\Roaming\SubDir\MoonX.exe

Filesize
3.1MB

MD5
067797d057419e6750a73dbc9891abc6

SHA1
38d7ed247ce382277fae0a89ce2bba37d6562857

SHA256
30f2c33a8795270263434282d667e0510f57de3946c30df57ceb3f82d35f430b

SHA512
6eac5b1f361f7173715cba3660d43f06ca342c838d393bfd736e00bf4a4e4da37e95e7e74fbcf40393b9618c173b63221a4c314c3a26e1d21bf8eb880a8ad0a5

Download Submit
memory/4012-11-0x00007FF878A30000-0x00007FF8794F1000-memory.dmp

Filesize
10.8MB

Download
memory/4012-12-0x00007FF878A30000-0x00007FF8794F1000-memory.dmp

Filesize
10.8MB

Download
memory/4012-13-0x000000001B9D0000-0x000000001BA20000-memory.dmp

Filesize
320KB

Download
memory/4012-14-0x000000001BAE0000-0x000000001BB92000-memory.dmp

Filesize
712KB

Download
memory/4012-15-0x00007FF878A30000-0x00007FF8794F1000-memory.dmp

Filesize
10.8MB

Download
memory/4880-0-0x00007FF878A33000-0x00007FF878A35000-memory.dmp

Filesize
8KB

Download
memory/4880-1-0x0000000000650000-0x0000000000974000-memory.dmp

Filesize
3.1MB

Download
memory/4880-2-0x00007FF878A30000-0x00007FF8794F1000-memory.dmp

Filesize
10.8MB

Download
memory/4880-10-0x00007FF878A30000-0x00007FF8794F1000-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