quasar | ad5cb8a93739cfa25593297273376d7184e735ce1d373988cb179084b8bb6059

Analysis

max time kernel
12s
max time network
7s
platform
windows11-21h2_x64
resource
win11-20241007-en
resource tags

arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
submitted
28-12-2024 11:15

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General

Target

SeronTest.exe
Size

3.1MB
MD5

c18003ca99f5096b2fe9447a5287b5ed
SHA1

10ebcb15ed1eb9def39fd6a9dfa4db8ef83e61ca
SHA256

ad5cb8a93739cfa25593297273376d7184e735ce1d373988cb179084b8bb6059
SHA512

6ebb5def09d76801243c45fbf83844b8d9ad7c27154cc289c88fed630f3b1952af4dea4febdde021cf0c3a9b3fbddaefe89f1fc5903b03e52768f570376f2aac
SSDEEP

49152:TvelL26AaNeWgPhlmVqvMQ7XSK3PxNESE+k/iuLoGdUTHHB72eh2NT:TvOL26AaNeWgPhlmVqkQ7XSKfxNQ

Score

10^/10

quasar seron spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Seron

nigeboc465-58875.portmap.host:58875

Mutex

eb8602ec-8a0d-4322-b9a0-544571be5a2d

Attributes

encryption_key
8BD9150EEC3DA71ED82080D7AEB7C165A58C889F
install_name
f8mk7ZGwVUpulm.exe
log_directory
Logs
reconnect_delay
3000
startup_key
f8mk7ZGwVUpulm
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
behavioral1/memory/4068-1-0x0000000000870000-0x0000000000B94000-memory.dmp	family_quasar
behavioral1/files/0x001b00000002aacc-6.dat	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
4368	f8mk7ZGwVUpulm.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
2004	schtasks.exe
4276	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4068	SeronTest.exe
Token: SeDebugPrivilege	4368	f8mk7ZGwVUpulm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4368	f8mk7ZGwVUpulm.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4068 wrote to memory of 2004	4068	SeronTest.exe	77
PID 4068 wrote to memory of 2004	4068	SeronTest.exe	77
PID 4068 wrote to memory of 4368	4068	SeronTest.exe	79
PID 4068 wrote to memory of 4368	4068	SeronTest.exe	79
PID 4368 wrote to memory of 4276	4368	f8mk7ZGwVUpulm.exe	80
PID 4368 wrote to memory of 4276	4368	f8mk7ZGwVUpulm.exe	80

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\SeronTest.exe
"C:\Users\Admin\AppData\Local\Temp\SeronTest.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4068
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks" /create /tn "f8mk7ZGwVUpulm" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\f8mk7ZGwVUpulm.exe" /rl HIGHEST /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2004
- C:\Users\Admin\AppData\Roaming\SubDir\f8mk7ZGwVUpulm.exe
  "C:\Users\Admin\AppData\Roaming\SubDir\f8mk7ZGwVUpulm.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4368
- - C:\Windows\SYSTEM32\schtasks.exe
    "schtasks" /create /tn "f8mk7ZGwVUpulm" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\f8mk7ZGwVUpulm.exe" /rl HIGHEST /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:4276

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\f8mk7ZGwVUpulm.exe

Filesize
3.1MB

MD5
c18003ca99f5096b2fe9447a5287b5ed

SHA1
10ebcb15ed1eb9def39fd6a9dfa4db8ef83e61ca

SHA256
ad5cb8a93739cfa25593297273376d7184e735ce1d373988cb179084b8bb6059

SHA512
6ebb5def09d76801243c45fbf83844b8d9ad7c27154cc289c88fed630f3b1952af4dea4febdde021cf0c3a9b3fbddaefe89f1fc5903b03e52768f570376f2aac

Download Submit
memory/4068-0-0x00007FF828ED3000-0x00007FF828ED5000-memory.dmp

Filesize
8KB

Download
memory/4068-1-0x0000000000870000-0x0000000000B94000-memory.dmp

Filesize
3.1MB

Download
memory/4068-2-0x00007FF828ED0000-0x00007FF829992000-memory.dmp

Filesize
10.8MB

Download
memory/4068-9-0x00007FF828ED0000-0x00007FF829992000-memory.dmp

Filesize
10.8MB

Download
memory/4368-11-0x00007FF828ED0000-0x00007FF829992000-memory.dmp

Filesize
10.8MB

Download
memory/4368-10-0x00007FF828ED0000-0x00007FF829992000-memory.dmp

Filesize
10.8MB

Download
memory/4368-12-0x000000001B370000-0x000000001B3C0000-memory.dmp

Filesize
320KB

Download
memory/4368-13-0x000000001BAB0000-0x000000001BB62000-memory.dmp

Filesize
712KB

Download
memory/4368-16-0x000000001BA10000-0x000000001BA22000-memory.dmp

Filesize
72KB

Download
memory/4368-17-0x000000001BA70000-0x000000001BAAC000-memory.dmp

Filesize
240KB

Download
memory/4368-18-0x00007FF828ED0000-0x00007FF829992000-memory.dmp

Filesize
10.8MB

Download
memory/4368-19-0x00007FF828ED0000-0x00007FF829992000-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