quasar | 8f33037c5ba0809a6f752d5b47cbc4be92ed035c72a1f36fabce73b1602ba716

Analysis

max time kernel
145s
max time network
148s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
01-03-2024 05:14

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General

Target

1216-1-0x0000000000310000-0x00000000006D4000-memory.exe
Size

3.8MB
MD5

c1a5f8470232b68b09a6fe6691f4565a
SHA1

ab6acb15a549ed408d8f54fcf904e0422cfe61fb
SHA256

8f33037c5ba0809a6f752d5b47cbc4be92ed035c72a1f36fabce73b1602ba716
SHA512

469a2a5b53e1a833fb9fcc8a011859b3ef3594a9d0b1fd4cd9d7ac0b528745305748201fc2df1565ff09ed52ae7b800c76053a52fe029acd402dea40370fc9d0
SSDEEP

49152:Kk/uWOo//RECDAQsn8BErTPIL5BZm7GtaadCm0tkjFQrjb5caEr:Kkx/5ECDAQlCnIL07ualvtkFQ7iaEr

Score

10^/10

quasar nulled spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

nulled

147.50.240.233:8008

Mutex

QSR_MUTEX_vjlanSKDAVykDAvDJ6

Attributes

encryption_key
d4qN0cIZpTNNR0XsDxxy
install_name
thick.exe
log_directory
Logs
reconnect_delay
3000
startup_key
updates
subdirectory
SubDir

Signatures

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

Quasar payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2180-0-0x0000000000C50000-0x0000000001014000-memory.dmp	family_quasar

Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

2 ip-api.com
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exe

pid process

2528 schtasks.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

1216-1-0x0000000000310000-0x00000000006D4000-memory.exe

description pid process

Token: SeDebugPrivilege 2180 1216-1-0x0000000000310000-0x00000000006D4000-memory.exe

flow	ioc
2	ip-api.com

pid	process
2528	schtasks.exe

description	pid	process
Token: SeDebugPrivilege	2180	1216-1-0x0000000000310000-0x00000000006D4000-memory.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

1216-1-0x0000000000310000-0x00000000006D4000-memory.exe

description	pid	process	target process
PID 2180 wrote to memory of 2528	2180	1216-1-0x0000000000310000-0x00000000006D4000-memory.exe	schtasks.exe
PID 2180 wrote to memory of 2528	2180	1216-1-0x0000000000310000-0x00000000006D4000-memory.exe	schtasks.exe
PID 2180 wrote to memory of 2528	2180	1216-1-0x0000000000310000-0x00000000006D4000-memory.exe	schtasks.exe
PID 2180 wrote to memory of 2528	2180	1216-1-0x0000000000310000-0x00000000006D4000-memory.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\1216-1-0x0000000000310000-0x00000000006D4000-memory.exe
"C:\Users\Admin\AppData\Local\Temp\1216-1-0x0000000000310000-0x00000000006D4000-memory.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2180

C:\Windows\SysWOW64\schtasks.exe
"schtasks" /create /tn "updates" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\1216-1-0x0000000000310000-0x00000000006D4000-memory.exe" /rl HIGHEST /f
2⤵
- Creates scheduled task(s)
PID:2528

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

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/2180-0-0x0000000000C50000-0x0000000001014000-memory.dmp

Filesize
3.8MB

Download
memory/2180-1-0x0000000074A30000-0x000000007511E000-memory.dmp

Filesize
6.9MB

Download
memory/2180-2-0x0000000000350000-0x0000000000390000-memory.dmp

Filesize
256KB

Download
memory/2180-3-0x0000000074A30000-0x000000007511E000-memory.dmp

Filesize
6.9MB

Download
memory/2180-4-0x0000000000350000-0x0000000000390000-memory.dmp

Filesize
256KB

Download