quasar | 19c73e461bc7f6419aa3a7bdb1c953f0ec0c28fcd08a989094673cdcd1348c39

Analysis

max time kernel
96s
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
08-12-2024 21:15

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General

Target

nurjhrgbv.exe
Size

3.1MB
MD5

55583e9982ac74b4e17da2004552e5da
SHA1

da79fa80ff490c251c4e1b56051b86b8ab867292
SHA256

19c73e461bc7f6419aa3a7bdb1c953f0ec0c28fcd08a989094673cdcd1348c39
SHA512

699bcb5165b90a7ee7a591e2dc3028eb1f295cd40f6c6ed307d636fae3070b5a4e69ae7cc557d733462e33ffcaed4c3b1afd66b89eceb5479f1b0c11177de337
SSDEEP

49152:rvrI22SsaNYfdPBldt698dBcjHKp61JVLoGdtuWTHHB72eh2NT:rvU22SsaNYfdPBldt6+dBcjHKpg

Score

10^/10

quasar roar spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

roar

weopgtjkjgserhgsfd-43392.portmap.host:43392

Mutex

f8cb2dc4-1bf5-48cb-8213-fa8d6f92d388

Attributes

encryption_key
C5904FDD788EA00F921C538B9FE80C0B0A0DE728
install_name
roar.exe
log_directory
Logs
reconnect_delay
3000
startup_key
discord
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/5064-1-0x0000000000C30000-0x0000000000F54000-memory.dmp	family_quasar
behavioral2/files/0x000a000000023b78-6.dat	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
1868	roar.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
2508	schtasks.exe
1444	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5064	nurjhrgbv.exe
Token: SeDebugPrivilege	1868	roar.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1868	roar.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5064 wrote to memory of 2508	5064	nurjhrgbv.exe	83
PID 5064 wrote to memory of 2508	5064	nurjhrgbv.exe	83
PID 5064 wrote to memory of 1868	5064	nurjhrgbv.exe	85
PID 5064 wrote to memory of 1868	5064	nurjhrgbv.exe	85
PID 1868 wrote to memory of 1444	1868	roar.exe	86
PID 1868 wrote to memory of 1444	1868	roar.exe	86

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\nurjhrgbv.exe
"C:\Users\Admin\AppData\Local\Temp\nurjhrgbv.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5064
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks" /create /tn "discord" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\roar.exe" /rl HIGHEST /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2508
- C:\Users\Admin\AppData\Roaming\SubDir\roar.exe
  "C:\Users\Admin\AppData\Roaming\SubDir\roar.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1868
- - C:\Windows\SYSTEM32\schtasks.exe
    "schtasks" /create /tn "discord" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\roar.exe" /rl HIGHEST /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:1444

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
3.1MB

MD5
55583e9982ac74b4e17da2004552e5da

SHA1
da79fa80ff490c251c4e1b56051b86b8ab867292

SHA256
19c73e461bc7f6419aa3a7bdb1c953f0ec0c28fcd08a989094673cdcd1348c39

SHA512
699bcb5165b90a7ee7a591e2dc3028eb1f295cd40f6c6ed307d636fae3070b5a4e69ae7cc557d733462e33ffcaed4c3b1afd66b89eceb5479f1b0c11177de337

Download Submit
memory/1868-10-0x00007FFE00F30000-0x00007FFE019F1000-memory.dmp

Filesize
10.8MB

Download
memory/1868-11-0x00007FFE00F30000-0x00007FFE019F1000-memory.dmp

Filesize
10.8MB

Download
memory/1868-12-0x000000001B420000-0x000000001B470000-memory.dmp

Filesize
320KB

Download
memory/1868-13-0x000000001BC70000-0x000000001BD22000-memory.dmp

Filesize
712KB

Download
memory/1868-16-0x000000001BBD0000-0x000000001BBE2000-memory.dmp

Filesize
72KB

Download
memory/1868-17-0x000000001BC30000-0x000000001BC6C000-memory.dmp

Filesize
240KB

Download
memory/1868-18-0x00007FFE00F30000-0x00007FFE019F1000-memory.dmp

Filesize
10.8MB

Download
memory/5064-0-0x00007FFE00F33000-0x00007FFE00F35000-memory.dmp

Filesize
8KB

Download
memory/5064-1-0x0000000000C30000-0x0000000000F54000-memory.dmp

Filesize
3.1MB

Download
memory/5064-2-0x00007FFE00F30000-0x00007FFE019F1000-memory.dmp

Filesize
10.8MB

Download
memory/5064-9-0x00007FFE00F30000-0x00007FFE019F1000-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