quasar | 1b493ad1ab765e7f0509c8928a3466754f64ad5728f79139a66effcb38d5cb67

Resubmissions

19-05-2024 20:07

240519-ywdftsff3z 10

Analysis

max time kernel
2s
max time network
3s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
19-05-2024 20:07

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

python-3.12.3-amd64.exe
Size

3.1MB
MD5

73d6940261ca10935db227bc344dfc8f
SHA1

d98e8c5b877d69a1de46a1c9188358fe802fb056
SHA256

1b493ad1ab765e7f0509c8928a3466754f64ad5728f79139a66effcb38d5cb67
SHA512

1928e0702140694fc54cfae2e784a752650a5a92c7858c1bb460beca6e02fa7cf87e767793f04139abd9cf328a6eed56652de3c98c59e0f51d64ea6e6fd412a2
SSDEEP

49152:Cvkt62XlaSFNWPjljiFa2RoUYIPSRJ6ebR3LoGd7THHB72eh2NT:Cv462XlaSFNWPjljiFXRoUYIPSRJ6Y

Score

10^/10

quasar python spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Python

5.39.43.50:1488

Mutex

393fbc9d-531f-4025-b3f0-bed4d56f6ed3

Attributes

encryption_key
1E01F0D74E189002EDB2FABC8EC064751C9D7A63
install_name
Python.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Python3
subdirectory
Python3

Signatures

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

Quasar payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2896-1-0x0000000000960000-0x0000000000C84000-memory.dmp	family_quasar
C:\Users\Admin\AppData\Roaming\Python3\Python.exe	family_quasar
behavioral1/memory/2436-10-0x0000000000070000-0x0000000000394000-memory.dmp	family_quasar

Executes dropped EXE 1 IoCs

Processes:

Python.exe

pid process

2436 Python.exe
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

2568 schtasks.exe
2592 schtasks.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

python-3.12.3-amd64.exePython.exe

description pid process

Token: SeDebugPrivilege 2896 python-3.12.3-amd64.exe
Token: SeDebugPrivilege 2436 Python.exe

pid	process
2436	Python.exe

pid	process
2568	schtasks.exe
2592	schtasks.exe

description	pid	process
Token: SeDebugPrivilege	2896	python-3.12.3-amd64.exe
Token: SeDebugPrivilege	2436	Python.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

python-3.12.3-amd64.exePython.exe

description	pid	process	target process
PID 2896 wrote to memory of 2568	2896	python-3.12.3-amd64.exe	schtasks.exe
PID 2896 wrote to memory of 2568	2896	python-3.12.3-amd64.exe	schtasks.exe
PID 2896 wrote to memory of 2568	2896	python-3.12.3-amd64.exe	schtasks.exe
PID 2896 wrote to memory of 2436	2896	python-3.12.3-amd64.exe	Python.exe
PID 2896 wrote to memory of 2436	2896	python-3.12.3-amd64.exe	Python.exe
PID 2896 wrote to memory of 2436	2896	python-3.12.3-amd64.exe	Python.exe
PID 2436 wrote to memory of 2592	2436	Python.exe	schtasks.exe
PID 2436 wrote to memory of 2592	2436	Python.exe	schtasks.exe
PID 2436 wrote to memory of 2592	2436	Python.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\python-3.12.3-amd64.exe
"C:\Users\Admin\AppData\Local\Temp\python-3.12.3-amd64.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2896

C:\Windows\system32\schtasks.exe
"schtasks" /create /tn "Python3" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Python3\Python.exe" /rl HIGHEST /f
2⤵
- Creates scheduled task(s)
PID:2568

C:\Users\Admin\AppData\Roaming\Python3\Python.exe
"C:\Users\Admin\AppData\Roaming\Python3\Python.exe"
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2436

C:\Windows\system32\schtasks.exe
"schtasks" /create /tn "Python3" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Python3\Python.exe" /rl HIGHEST /f
3⤵
- Creates scheduled task(s)
PID:2592

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\Python3\Python.exe
Filesize
3.1MB

MD5
73d6940261ca10935db227bc344dfc8f

SHA1
d98e8c5b877d69a1de46a1c9188358fe802fb056

SHA256
1b493ad1ab765e7f0509c8928a3466754f64ad5728f79139a66effcb38d5cb67

SHA512
1928e0702140694fc54cfae2e784a752650a5a92c7858c1bb460beca6e02fa7cf87e767793f04139abd9cf328a6eed56652de3c98c59e0f51d64ea6e6fd412a2

Download Submit
memory/2436-9-0x000007FEF5F40000-0x000007FEF692C000-memory.dmp

Filesize
9.9MB

Download
memory/2436-10-0x0000000000070000-0x0000000000394000-memory.dmp

Filesize
3.1MB

Download
memory/2436-11-0x000007FEF5F40000-0x000007FEF692C000-memory.dmp

Filesize
9.9MB

Download
memory/2896-0-0x000007FEF5F43000-0x000007FEF5F44000-memory.dmp

Filesize
4KB

Download
memory/2896-1-0x0000000000960000-0x0000000000C84000-memory.dmp

Filesize
3.1MB

Download
memory/2896-2-0x000007FEF5F40000-0x000007FEF692C000-memory.dmp

Filesize
9.9MB

Download
memory/2896-8-0x000007FEF5F40000-0x000007FEF692C000-memory.dmp

Filesize
9.9MB

Download