quasar | 1850845c867a7b02ba9be9a2368d77d026288f74d3a4746db06e8a1e5914be0a

Analysis

max time kernel
146s
max time network
150s
platform
windows11-21h2_x64
resource
win11-20240611-en
resource tags

arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system
submitted
29-06-2024 16:33

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General

Target

fee.exe
Size

3.1MB
MD5

c7019bdd8633d251d4cb882ad7ed660b
SHA1

ae597e52309ccc880c12a07ffd3198a4d5b44c94
SHA256

1850845c867a7b02ba9be9a2368d77d026288f74d3a4746db06e8a1e5914be0a
SHA512

632899d91ead3ef99efeec2fa5c8b16dcd5ae9c7db24b28132971e130438c22d85df1abb68411244aec113b34804e0535f0311e31af2b12f519b819c1297fca9
SSDEEP

49152:KvnI22SsaNYfdPBldt698dBcjHSLRJ6ybR3LoGdpTHHB72eh2NT:KvI22SsaNYfdPBldt6+dBcjHSLRJ6s

Score

10^/10

quasar zzzz spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

zzzz

8.tcp.ngrok.io:14734

Mutex

116e2822-047d-4b5c-ad10-563148a1a28e

Attributes

encryption_key
C366BC97216329D1909524412E3ECB1EBC575D07
install_name
Client.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Quasar Client Startup
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/4284-1-0x0000000000B70000-0x0000000000E94000-memory.dmp family_quasar
Legitimate hosting services abused for malware hosting/C2 1 TTPs 1 IoCs

Web Service
T1102

Processes:

flow ioc

1 8.tcp.ngrok.io
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

fee.exe

description pid process

Token: SeDebugPrivilege 4284 fee.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

fee.exe

pid process

4284 fee.exe

resource	yara_rule
behavioral1/memory/4284-1-0x0000000000B70000-0x0000000000E94000-memory.dmp	family_quasar

flow	ioc
1	8.tcp.ngrok.io

description	pid	process
Token: SeDebugPrivilege	4284	fee.exe

pid	process
4284	fee.exe

C:\Users\Admin\AppData\Local\Temp\fee.exe
"C:\Users\Admin\AppData\Local\Temp\fee.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4284

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

T1102

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/4284-0-0x00007FFF82293000-0x00007FFF82295000-memory.dmp

Filesize
8KB

Download
memory/4284-1-0x0000000000B70000-0x0000000000E94000-memory.dmp

Filesize
3.1MB

Download
memory/4284-2-0x00007FFF82290000-0x00007FFF82D52000-memory.dmp

Filesize
10.8MB

Download
memory/4284-3-0x000000001BC60000-0x000000001BCB0000-memory.dmp

Filesize
320KB

Download
memory/4284-4-0x000000001C480000-0x000000001C532000-memory.dmp

Filesize
712KB

Download
memory/4284-7-0x000000001C440000-0x000000001C452000-memory.dmp

Filesize
72KB

Download
memory/4284-8-0x000000001CED0000-0x000000001CF0C000-memory.dmp

Filesize
240KB

Download
memory/4284-9-0x00007FFF82293000-0x00007FFF82295000-memory.dmp

Filesize
8KB

Download
memory/4284-10-0x00007FFF82290000-0x00007FFF82D52000-memory.dmp

Filesize
10.8MB

Download