quasar | 1a4689bd6cc37dac5abf6a68afda78aa46cf114aadb276b21299d1f566e4ef58

Analysis

max time kernel
237s
max time network
298s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
01-07-2024 16:27

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General

Target

uni/Uni - Copy (100) - Copy - Copy.exe
Size

409KB
MD5

b70fdac25a99501e3cae11f1b775249e
SHA1

3c59226479bfdcd1b2927bcfb1a7516d4cb8dd71
SHA256

51ff3eb450a786c1aaa75ff889f2fd256412a7b75d04277fdf9fcccc20e57246
SHA512

43f0d5d6e5f0d5febba537c109ffdbc250bbb6e9725e635a43ec975b0353048eaeee50b6e9274cd5e072ea6b0cea32439bd37408b2528832f467f2075f74ca44
SSDEEP

12288:gpbJjGut6AoE3hVVdFaC/eZPTMTDlpgfJCKuMsVs:oVaurMLcDlpRKai

Score

10^/10

quasar seroxen spyware trojan

Malware Config

Extracted

Family

quasar

Version

3.1.5

Botnet

SeroXen

panel-slave.gl.at.ply.gg:57059

panel-slave.gl.at.ply.gg:27892

Mutex

$Sxr-rpL8EItHN3pqIQQVy2

Attributes

encryption_key
Lme7VBS3l58VwLM69PNM
install_name
Client.exe
log_directory
Logs
reconnect_delay
3000
startup_key
SeroXen
subdirectory
SubDir

Signatures

Quasar RAT
Quasar is an open source Remote Access Tool.
trojan spyware quasar
Quasar payload 2 IoCs

Processes:

resource yara_rule

behavioral14/memory/932-1-0x0000000000DD0000-0x0000000000E3C000-memory.dmp family_quasar
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe family_quasar
Executes dropped EXE 1 IoCs

Processes:

Client.exe

pid process

1628 Client.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.

Processes:

flow ioc

20 ip-api.com
Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence execution

Scheduled Task
T1053.005

Processes:

schtasks.exeschtasks.exeSCHTASKS.exe

pid process

2524 schtasks.exe
3396 schtasks.exe
4360 SCHTASKS.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Uni - Copy (100) - Copy - Copy.exeClient.exe

description pid process

Token: SeDebugPrivilege 932 Uni - Copy (100) - Copy - Copy.exe
Token: SeDebugPrivilege 1628 Client.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Client.exe

pid process

1628 Client.exe

resource	yara_rule
behavioral14/memory/932-1-0x0000000000DD0000-0x0000000000E3C000-memory.dmp	family_quasar
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe	family_quasar

pid	process
1628	Client.exe

flow	ioc
20	ip-api.com

pid	process
2524	schtasks.exe
3396	schtasks.exe
4360	SCHTASKS.exe

description	pid	process
Token: SeDebugPrivilege	932	Uni - Copy (100) - Copy - Copy.exe
Token: SeDebugPrivilege	1628	Client.exe

pid	process
1628	Client.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

Uni - Copy (100) - Copy - Copy.exeClient.exe

description	pid	process	target process
PID 932 wrote to memory of 3396	932	Uni - Copy (100) - Copy - Copy.exe	schtasks.exe
PID 932 wrote to memory of 3396	932	Uni - Copy (100) - Copy - Copy.exe	schtasks.exe
PID 932 wrote to memory of 3396	932	Uni - Copy (100) - Copy - Copy.exe	schtasks.exe
PID 932 wrote to memory of 1628	932	Uni - Copy (100) - Copy - Copy.exe	Client.exe
PID 932 wrote to memory of 1628	932	Uni - Copy (100) - Copy - Copy.exe	Client.exe
PID 932 wrote to memory of 1628	932	Uni - Copy (100) - Copy - Copy.exe	Client.exe
PID 932 wrote to memory of 4360	932	Uni - Copy (100) - Copy - Copy.exe	SCHTASKS.exe
PID 932 wrote to memory of 4360	932	Uni - Copy (100) - Copy - Copy.exe	SCHTASKS.exe
PID 932 wrote to memory of 4360	932	Uni - Copy (100) - Copy - Copy.exe	SCHTASKS.exe
PID 1628 wrote to memory of 2524	1628	Client.exe	schtasks.exe
PID 1628 wrote to memory of 2524	1628	Client.exe	schtasks.exe
PID 1628 wrote to memory of 2524	1628	Client.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (100) - Copy - Copy.exe
"C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (100) - Copy - Copy.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:932

C:\Windows\SysWOW64\schtasks.exe
"schtasks" /create /tn "SeroXen" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (100) - Copy - Copy.exe" /rl HIGHEST /f
2⤵
- Scheduled Task/Job: Scheduled Task
PID:3396

C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1628

C:\Windows\SysWOW64\schtasks.exe
"schtasks" /create /tn "SeroXen" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
3⤵
- Scheduled Task/Job: Scheduled Task
PID:2524

C:\Windows\SysWOW64\SCHTASKS.exe
"SCHTASKS.exe" /create /tn "$77Uni - Copy (100) - Copy - Copy.exe" /tr "'C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (100) - Copy - Copy.exe'" /sc onlogon /rl HIGHEST
2⤵
- Scheduled Task/Job: Scheduled Task
PID:4360

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
Filesize
409KB

MD5
b70fdac25a99501e3cae11f1b775249e

SHA1
3c59226479bfdcd1b2927bcfb1a7516d4cb8dd71

SHA256
51ff3eb450a786c1aaa75ff889f2fd256412a7b75d04277fdf9fcccc20e57246

SHA512
43f0d5d6e5f0d5febba537c109ffdbc250bbb6e9725e635a43ec975b0353048eaeee50b6e9274cd5e072ea6b0cea32439bd37408b2528832f467f2075f74ca44

Download Submit
memory/932-6-0x0000000006660000-0x0000000006672000-memory.dmp

Filesize
72KB

Download
memory/932-1-0x0000000000DD0000-0x0000000000E3C000-memory.dmp

Filesize
432KB

Download
memory/932-3-0x0000000005880000-0x0000000005912000-memory.dmp

Filesize
584KB

Download
memory/932-4-0x00000000750B0000-0x0000000075860000-memory.dmp

Filesize
7.7MB

Download
memory/932-5-0x0000000005920000-0x0000000005986000-memory.dmp

Filesize
408KB

Download
memory/932-0-0x00000000750BE000-0x00000000750BF000-memory.dmp

Filesize
4KB

Download
memory/932-7-0x0000000006BA0000-0x0000000006BDC000-memory.dmp

Filesize
240KB

Download
memory/932-2-0x0000000005D90000-0x0000000006334000-memory.dmp

Filesize
5.6MB

Download
memory/932-16-0x00000000750B0000-0x0000000075860000-memory.dmp

Filesize
7.7MB

Download
memory/1628-14-0x00000000750B0000-0x0000000075860000-memory.dmp

Filesize
7.7MB

Download
memory/1628-13-0x00000000750B0000-0x0000000075860000-memory.dmp

Filesize
7.7MB

Download
memory/1628-18-0x00000000067B0000-0x00000000067BA000-memory.dmp

Filesize
40KB

Download
memory/1628-19-0x00000000750B0000-0x0000000075860000-memory.dmp

Filesize
7.7MB

Download
memory/1628-20-0x00000000750B0000-0x0000000075860000-memory.dmp

Filesize
7.7MB

Download