quasar | 54cef68b48ded4fa94e54f164a4dd838894a200c2887c885d29474c998c5e2c8

Analysis

max time kernel
95s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-11-2024 11:07

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General

Target

54cef68b48ded4fa94e54f164a4dd838894a200c2887c885d29474c998c5e2c8.dll
Size

542KB
MD5

1fed599b6716c7395cfe19002774dac5
SHA1

2dd268f89e179bdf68477660a51c77fe6e95e7eb
SHA256

54cef68b48ded4fa94e54f164a4dd838894a200c2887c885d29474c998c5e2c8
SHA512

ad4bd2c8b04cff498de9517481b5ffbc3c48d0842f2532ef8e6143773bceb49fbd70069b54c30a59affa8590f800ba8a2323284278ffda1e13db7629ba85dd5b
SSDEEP

12288:RHVfvJEwcONs7+c/PfiIw0hleWqnFlw6lF9TZFb9/w8YrA9r6Abyv:/JUONOXns0hUFw6dfb9grMr4

Score

10^/10

quasar discovery spyware trojan

Malware Config

Signatures

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

Blocklisted process makes network request 2 IoCs

flow	pid	Process
4	5076	rundll32.exe
10	5076	rundll32.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
9	ip-api.com

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5076	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4900 wrote to memory of 5076	4900	rundll32.exe	83
PID 4900 wrote to memory of 5076	4900	rundll32.exe	83
PID 4900 wrote to memory of 5076	4900	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\54cef68b48ded4fa94e54f164a4dd838894a200c2887c885d29474c998c5e2c8.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4900
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\54cef68b48ded4fa94e54f164a4dd838894a200c2887c885d29474c998c5e2c8.dll,#1
  2⤵
  - Blocklisted process makes network request
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:5076

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/5076-0-0x0000000002F10000-0x0000000002F4E000-memory.dmp

Filesize
248KB

Download
memory/5076-2-0x000000007423E000-0x000000007423F000-memory.dmp

Filesize
4KB

Download
memory/5076-3-0x0000000005710000-0x000000000574C000-memory.dmp

Filesize
240KB

Download
memory/5076-5-0x0000000005D00000-0x00000000062A4000-memory.dmp

Filesize
5.6MB

Download
memory/5076-4-0x0000000074230000-0x00000000749E0000-memory.dmp

Filesize
7.7MB

Download
memory/5076-6-0x0000000005860000-0x00000000058F2000-memory.dmp

Filesize
584KB

Download
memory/5076-8-0x0000000074230000-0x00000000749E0000-memory.dmp

Filesize
7.7MB

Download
memory/5076-7-0x0000000074230000-0x00000000749E0000-memory.dmp

Filesize
7.7MB

Download
memory/5076-9-0x0000000005900000-0x0000000005966000-memory.dmp

Filesize
408KB

Download
memory/5076-10-0x00000000063B0000-0x00000000063C2000-memory.dmp

Filesize
72KB

Download
memory/5076-11-0x00000000065D0000-0x00000000065DA000-memory.dmp

Filesize
40KB

Download
memory/5076-12-0x0000000005C10000-0x0000000005C4C000-memory.dmp

Filesize
240KB

Download
memory/5076-14-0x0000000074230000-0x00000000749E0000-memory.dmp

Filesize
7.7MB

Download
memory/5076-13-0x000000007423E000-0x000000007423F000-memory.dmp

Filesize
4KB

Download
memory/5076-15-0x0000000074230000-0x00000000749E0000-memory.dmp

Filesize
7.7MB

Download
memory/5076-16-0x0000000074230000-0x00000000749E0000-memory.dmp

Filesize
7.7MB

Download