quasar | a9900a2399e587ed3ff5e60f06d042a5c6b340860f662b8716994d31775b5fe4

General

Target

TrixSMP-2.5.2.exe
Size

3.2MB
MD5

9fcc6a986059b5b536e1d9a024d98437
SHA1

362efdff4d397b27465effecd5cc46cc75ba4252
SHA256

a9900a2399e587ed3ff5e60f06d042a5c6b340860f662b8716994d31775b5fe4
SHA512

957c35d730f239e45d6b8080b90a021a14cb9a2e650299c8220233db52e4794839c87955ae0660dd5284f1c2fefa6ef3aa0d848fee13c3c8318d8616c2347936
SSDEEP

49152:KvwG42pda6D+/PjlLOlg6yQipVrchNmzf3oGd+BTHHB72eh2NTVmd:Kvz42pda6D+/PjlLOlZyQipVrchGXmd

Score

10^/10

quasar hakai spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

hakai

C2

hakai44-57264.portmap.io:57264

hakai44-57264.portmap.io:7000

Mutex

ebb287ed-cec7-4c1a-bd01-c9a44d3e16eb

Attributes

encryption_key
EA64A0D4FF8902AE6D948D3F1F4FE3A6BD4AAB3A
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 family
quasar

Quasar payload 2 IoCs

resource	yara_rule
behavioral2/memory/544-1-0x0000000000940000-0x0000000000C6E000-memory.dmp	family_quasar
behavioral2/files/0x0007000000023c76-6.dat	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
1592	Client.exe

Drops file in Program Files directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\SubDir	Client.exe
File created	C:\Program Files\SubDir\Client.exe	TrixSMP-2.5.2.exe
File opened for modification	C:\Program Files\SubDir\Client.exe	TrixSMP-2.5.2.exe
File opened for modification	C:\Program Files\SubDir	TrixSMP-2.5.2.exe
File opened for modification	C:\Program Files\SubDir\Client.exe	Client.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
3536	schtasks.exe
2276	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	544	TrixSMP-2.5.2.exe
Token: SeDebugPrivilege	1592	Client.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1592	Client.exe
1592	Client.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1592	Client.exe
1592	Client.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1592	Client.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 544 wrote to memory of 3536	544	TrixSMP-2.5.2.exe	85
PID 544 wrote to memory of 3536	544	TrixSMP-2.5.2.exe	85
PID 544 wrote to memory of 1592	544	TrixSMP-2.5.2.exe	87
PID 544 wrote to memory of 1592	544	TrixSMP-2.5.2.exe	87
PID 1592 wrote to memory of 2276	1592	Client.exe	89
PID 1592 wrote to memory of 2276	1592	Client.exe	89

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\TrixSMP-2.5.2.exe
"C:\Users\Admin\AppData\Local\Temp\TrixSMP-2.5.2.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:544
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Program Files\SubDir\Client.exe" /rl HIGHEST /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:3536
- C:\Program Files\SubDir\Client.exe
  "C:\Program Files\SubDir\Client.exe"
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1592
- - C:\Windows\SYSTEM32\schtasks.exe
    "schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Program Files\SubDir\Client.exe" /rl HIGHEST /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2276

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Program Files\SubDir\Client.exe

Filesize
3.2MB

MD5
9fcc6a986059b5b536e1d9a024d98437

SHA1
362efdff4d397b27465effecd5cc46cc75ba4252

SHA256
a9900a2399e587ed3ff5e60f06d042a5c6b340860f662b8716994d31775b5fe4

SHA512
957c35d730f239e45d6b8080b90a021a14cb9a2e650299c8220233db52e4794839c87955ae0660dd5284f1c2fefa6ef3aa0d848fee13c3c8318d8616c2347936

Download Submit
memory/544-0-0x00007FFA96DC3000-0x00007FFA96DC5000-memory.dmp

Filesize
8KB

Download
memory/544-1-0x0000000000940000-0x0000000000C6E000-memory.dmp

Filesize
3.2MB

Download
memory/544-2-0x00007FFA96DC0000-0x00007FFA97881000-memory.dmp

Filesize
10.8MB

Download
memory/544-17-0x00007FFA96DC0000-0x00007FFA97881000-memory.dmp

Filesize
10.8MB

Download
memory/1592-9-0x00007FFA96DC0000-0x00007FFA97881000-memory.dmp

Filesize
10.8MB

Download
memory/1592-10-0x00007FFA96DC0000-0x00007FFA97881000-memory.dmp

Filesize
10.8MB

Download
memory/1592-11-0x000000001BB30000-0x000000001BB80000-memory.dmp

Filesize
320KB

Download
memory/1592-12-0x000000001BC40000-0x000000001BCF2000-memory.dmp

Filesize
712KB

Download
memory/1592-15-0x000000001BBA0000-0x000000001BBB2000-memory.dmp

Filesize
72KB

Download
memory/1592-16-0x000000001BC00000-0x000000001BC3C000-memory.dmp

Filesize
240KB

Download
memory/1592-18-0x00007FFA96DC0000-0x00007FFA97881000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads