quasar | eb46d0e15cd35a1864d8937e2d4df8943db939ee477e9966abe21697c5cd15bf

Analysis

max time kernel
146s
max time network
147s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
11/03/2024, 17:28

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General

Target

Client-built.exe
Size

3.1MB
MD5

8a0a8b83da8dbe8dfb6dae64556d39d7
SHA1

d3dd4e87ea883b4084240b923f2f80c9aadfed14
SHA256

eb46d0e15cd35a1864d8937e2d4df8943db939ee477e9966abe21697c5cd15bf
SHA512

6b268804a5811dfaa4476b40097c7edab76484859ac2fdfa387d94ee78ac9d9998da9eb5163495085e16ccf60f1842a895cc4c58be3faae5a5241631ad9863c7
SSDEEP

49152:/vRuf2NUaNmwzPWlvdaKM7ZxTwD3RJ6CbR3LoGdjQxTHHB72eh2NT:/vsf2NUaNmwzPWlvdaB7ZxTwD3RJ68

Score

10^/10

quasar getratted spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

GetRatted

uk2.localto.net:443

uk2.localto.net:32941

uk2.localto.net:4782

Mutex

994c2285-849b-4fdc-b619-27d9587c3b49

Attributes

encryption_key
7AE765C52213CCEA26FAE79A12777B2DAB755385
install_name
Minecraft.exe
log_directory
Steam WebHelper
reconnect_delay
3000
startup_key
Steam WebHelper
subdirectory
SubDir

Signatures

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

Quasar payload 3 IoCs

resource	yara_rule
behavioral1/memory/1460-0-0x0000000000F50000-0x0000000001274000-memory.dmp	family_quasar
behavioral1/files/0x000c000000014b27-6.dat	family_quasar
behavioral1/memory/2588-10-0x0000000001330000-0x0000000001654000-memory.dmp	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
2588	Minecraft.exe

Creates scheduled task(s) 1 TTPs 2 IoCs

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

persistence

Scheduled Task/Job

T1053

pid	Process
2920	schtasks.exe
2716	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1460	Client-built.exe
Token: SeDebugPrivilege	2588	Minecraft.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2588	Minecraft.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1460 wrote to memory of 2920	1460	Client-built.exe	28
PID 1460 wrote to memory of 2920	1460	Client-built.exe	28
PID 1460 wrote to memory of 2920	1460	Client-built.exe	28
PID 1460 wrote to memory of 2588	1460	Client-built.exe	30
PID 1460 wrote to memory of 2588	1460	Client-built.exe	30
PID 1460 wrote to memory of 2588	1460	Client-built.exe	30
PID 2588 wrote to memory of 2716	2588	Minecraft.exe	31
PID 2588 wrote to memory of 2716	2588	Minecraft.exe	31
PID 2588 wrote to memory of 2716	2588	Minecraft.exe	31

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\Client-built.exe
"C:\Users\Admin\AppData\Local\Temp\Client-built.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1460
- C:\Windows\system32\schtasks.exe
  "schtasks" /create /tn "Steam WebHelper" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Minecraft.exe" /rl HIGHEST /f
  2⤵
  - Creates scheduled task(s)
  PID:2920
- C:\Users\Admin\AppData\Roaming\SubDir\Minecraft.exe
  "C:\Users\Admin\AppData\Roaming\SubDir\Minecraft.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2588
- - C:\Windows\system32\schtasks.exe
    "schtasks" /create /tn "Steam WebHelper" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Minecraft.exe" /rl HIGHEST /f
    3⤵
    - Creates scheduled task(s)
    PID:2716

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\SubDir\Minecraft.exe

Filesize
3.1MB

MD5
8a0a8b83da8dbe8dfb6dae64556d39d7

SHA1
d3dd4e87ea883b4084240b923f2f80c9aadfed14

SHA256
eb46d0e15cd35a1864d8937e2d4df8943db939ee477e9966abe21697c5cd15bf

SHA512
6b268804a5811dfaa4476b40097c7edab76484859ac2fdfa387d94ee78ac9d9998da9eb5163495085e16ccf60f1842a895cc4c58be3faae5a5241631ad9863c7

Download Submit
memory/1460-0-0x0000000000F50000-0x0000000001274000-memory.dmp

Filesize
3.1MB

Download
memory/1460-1-0x000007FEF5C30000-0x000007FEF661C000-memory.dmp

Filesize
9.9MB

Download
memory/1460-2-0x000000001ABD0000-0x000000001AC50000-memory.dmp

Filesize
512KB

Download
memory/1460-8-0x000007FEF5C30000-0x000007FEF661C000-memory.dmp

Filesize
9.9MB

Download
memory/2588-9-0x000007FEF5C30000-0x000007FEF661C000-memory.dmp

Filesize
9.9MB

Download
memory/2588-10-0x0000000001330000-0x0000000001654000-memory.dmp

Filesize
3.1MB

Download
memory/2588-11-0x000000001B190000-0x000000001B210000-memory.dmp

Filesize
512KB

Download
memory/2588-12-0x000007FEF5C30000-0x000007FEF661C000-memory.dmp

Filesize
9.9MB

Download
memory/2588-13-0x000000001B190000-0x000000001B210000-memory.dmp

Filesize
512KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads