quasar | c4f4b783e9b152a00d5cac8b82d2ae0c74fa848aaa4a524dc5cb81b1576aaab5

General

Target

uni/Uni - Copy (2).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

C2

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 4 IoCs

Quasar is an open source Remote Access Tool.

trojan spyware quasar

flow	ioc	pid	Process
		2860	schtasks.exe
2	ip-api.com		Process not Found
6	api.ipify.org		Process not Found
10	ip-api.com		Process not Found

Quasar payload 3 IoCs

resource	yara_rule
behavioral1/memory/1972-1-0x0000000000230000-0x000000000029C000-memory.dmp	family_quasar
behavioral1/files/0x0033000000015f6d-5.dat	family_quasar
behavioral1/memory/2608-10-0x0000000000250000-0x00000000002BC000-memory.dmp	family_quasar

Executes dropped EXE 2 IoCs

pid	Process
2608	Client.exe
600	mYnwnbcl8YBb.exe

Loads dropped DLL 2 IoCs

pid	Process
1972	Uni - Copy (2).exe
2608	Client.exe

Looks up external IP address via web service 3 IoCs

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

flow	ioc
2	ip-api.com
6	api.ipify.org
10	ip-api.com

Creates scheduled task(s) 1 TTPs 3 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
2860	schtasks.exe
2332	schtasks.exe
2964	SCHTASKS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1972	Uni - Copy (2).exe
Token: SeDebugPrivilege	2608	Client.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2608	Client.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1972 wrote to memory of 2860	1972	Uni - Copy (2).exe	29
PID 1972 wrote to memory of 2860	1972	Uni - Copy (2).exe	29
PID 1972 wrote to memory of 2860	1972	Uni - Copy (2).exe	29
PID 1972 wrote to memory of 2860	1972	Uni - Copy (2).exe	29
PID 1972 wrote to memory of 2608	1972	Uni - Copy (2).exe	31
PID 1972 wrote to memory of 2608	1972	Uni - Copy (2).exe	31
PID 1972 wrote to memory of 2608	1972	Uni - Copy (2).exe	31
PID 1972 wrote to memory of 2608	1972	Uni - Copy (2).exe	31
PID 1972 wrote to memory of 2608	1972	Uni - Copy (2).exe	31
PID 1972 wrote to memory of 2608	1972	Uni - Copy (2).exe	31
PID 1972 wrote to memory of 2608	1972	Uni - Copy (2).exe	31
PID 2608 wrote to memory of 2332	2608	Client.exe	32
PID 2608 wrote to memory of 2332	2608	Client.exe	32
PID 2608 wrote to memory of 2332	2608	Client.exe	32
PID 2608 wrote to memory of 2332	2608	Client.exe	32
PID 1972 wrote to memory of 2964	1972	Uni - Copy (2).exe	34
PID 1972 wrote to memory of 2964	1972	Uni - Copy (2).exe	34
PID 1972 wrote to memory of 2964	1972	Uni - Copy (2).exe	34
PID 1972 wrote to memory of 2964	1972	Uni - Copy (2).exe	34
PID 2608 wrote to memory of 600	2608	Client.exe	38
PID 2608 wrote to memory of 600	2608	Client.exe	38
PID 2608 wrote to memory of 600	2608	Client.exe	38
PID 2608 wrote to memory of 600	2608	Client.exe	38

C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (2).exe
"C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (2).exe"
1⤵
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1972
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks" /create /tn "SeroXen" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (2).exe" /rl HIGHEST /f
  2⤵
  - Quasar RAT
  - Creates scheduled task(s)
  PID:2860
- C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
  "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2608
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks" /create /tn "SeroXen" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
    3⤵
    - Creates scheduled task(s)
    PID:2332
- - C:\Users\Admin\AppData\Local\Temp\mYnwnbcl8YBb.exe
    "C:\Users\Admin\AppData\Local\Temp\mYnwnbcl8YBb.exe"
    3⤵
    - Executes dropped EXE
    PID:600
- C:\Windows\SysWOW64\SCHTASKS.exe
  "SCHTASKS.exe" /create /tn "$77Uni - Copy (2).exe" /tr "'C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (2).exe'" /sc onlogon /rl HIGHEST
  2⤵
  - Creates scheduled task(s)
  PID:2964

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\mYnwnbcl8YBb.exe

Filesize
277KB

MD5
dac0c5b2380cbdd93b46763427c9f8df

SHA1
038089e1a0ac8375be797fc3ce7ae719abc72834

SHA256
d02538788fb57f568ece292f5fc20e9775c86d504de67f57e22534f84adc73c6

SHA512
05cc1f6bf25a6545a06c735ae7a4a7fc25489bdb9fbc8d5797be623982662c4a93cba2d20bfe14313ef1548eaaa691e55fabdd8e3d3e45de9ab42dc62f9a7023

Download Submit
\Users\Admin\AppData\Roaming\SubDir\Client.exe

Filesize
409KB

MD5
b70fdac25a99501e3cae11f1b775249e

SHA1
3c59226479bfdcd1b2927bcfb1a7516d4cb8dd71

SHA256
51ff3eb450a786c1aaa75ff889f2fd256412a7b75d04277fdf9fcccc20e57246

SHA512
43f0d5d6e5f0d5febba537c109ffdbc250bbb6e9725e635a43ec975b0353048eaeee50b6e9274cd5e072ea6b0cea32439bd37408b2528832f467f2075f74ca44

Download Submit
memory/1972-0-0x0000000074DFE000-0x0000000074DFF000-memory.dmp

Filesize
4KB

Download
memory/1972-1-0x0000000000230000-0x000000000029C000-memory.dmp

Filesize
432KB

Download
memory/1972-2-0x0000000074DF0000-0x00000000754DE000-memory.dmp

Filesize
6.9MB

Download
memory/1972-14-0x0000000074DF0000-0x00000000754DE000-memory.dmp

Filesize
6.9MB

Download
memory/2608-10-0x0000000000250000-0x00000000002BC000-memory.dmp

Filesize
432KB

Download
memory/2608-12-0x0000000074DF0000-0x00000000754DE000-memory.dmp

Filesize
6.9MB

Download
memory/2608-11-0x0000000074DF0000-0x00000000754DE000-memory.dmp

Filesize
6.9MB

Download
memory/2608-15-0x0000000074DF0000-0x00000000754DE000-memory.dmp

Filesize
6.9MB

Download
memory/2608-16-0x0000000074DF0000-0x00000000754DE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads