quasar | 45523a903ee180f9e3951b007ca8bba84783f0bd986c2a1a351255e47d7e77a3

Analysis

max time kernel
34s
max time network
37s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-12-2024 09:01

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General

Target

Seron.exe
Size

3.1MB
MD5

cc69f02e1ef447e7fa8b720c8854f9fd
SHA1

f76a656e845e5e13b0cea87e46574d1445def0fa
SHA256

45523a903ee180f9e3951b007ca8bba84783f0bd986c2a1a351255e47d7e77a3
SHA512

230cc521b8b8a287542186cf681b810835bd2d380fd4c19ac4ee316145d6ba9a7460065dc428d486b26d6baa8df54a97f4c10519e5dc8091a0309ed2ea2f4d7b
SSDEEP

49152:nvelL26AaNeWgPhlmVqvMQ7XSKyKRJ60bR3LoGdoJATHHB72eh2NT:nvOL26AaNeWgPhlmVqkQ7XSKyKRJ6+M

Score

10^/10

quasar seron spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Seron

a4hrb4kc9z-59858.portmap.host:59858

Mutex

2ac9af47-8868-455d-8ff0-aea73f3bb28f

Attributes

encryption_key
8BD9150EEC3DA71ED82080D7AEB7C165A58C889F
install_name
i8zbCLcf2xHsS2.exe
log_directory
Logs
reconnect_delay
3000
startup_key
i8zbCLcf2xHsS2
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/4072-1-0x0000000000CD0000-0x0000000000FF4000-memory.dmp	family_quasar
behavioral2/files/0x0007000000023c97-7.dat	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
4532	i8zbCLcf2xHsS2.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
4968	schtasks.exe
2920	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4072	Seron.exe
Token: SeDebugPrivilege	4532	i8zbCLcf2xHsS2.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4532	i8zbCLcf2xHsS2.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4072 wrote to memory of 4968	4072	Seron.exe	83
PID 4072 wrote to memory of 4968	4072	Seron.exe	83
PID 4072 wrote to memory of 4532	4072	Seron.exe	85
PID 4072 wrote to memory of 4532	4072	Seron.exe	85
PID 4532 wrote to memory of 2920	4532	i8zbCLcf2xHsS2.exe	86
PID 4532 wrote to memory of 2920	4532	i8zbCLcf2xHsS2.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\Seron.exe
"C:\Users\Admin\AppData\Local\Temp\Seron.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4072
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks" /create /tn "i8zbCLcf2xHsS2" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\i8zbCLcf2xHsS2.exe" /rl HIGHEST /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:4968
- C:\Users\Admin\AppData\Roaming\SubDir\i8zbCLcf2xHsS2.exe
  "C:\Users\Admin\AppData\Roaming\SubDir\i8zbCLcf2xHsS2.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4532
- - C:\Windows\SYSTEM32\schtasks.exe
    "schtasks" /create /tn "i8zbCLcf2xHsS2" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\i8zbCLcf2xHsS2.exe" /rl HIGHEST /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2920

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\i8zbCLcf2xHsS2.exe

Filesize
3.1MB

MD5
cc69f02e1ef447e7fa8b720c8854f9fd

SHA1
f76a656e845e5e13b0cea87e46574d1445def0fa

SHA256
45523a903ee180f9e3951b007ca8bba84783f0bd986c2a1a351255e47d7e77a3

SHA512
230cc521b8b8a287542186cf681b810835bd2d380fd4c19ac4ee316145d6ba9a7460065dc428d486b26d6baa8df54a97f4c10519e5dc8091a0309ed2ea2f4d7b

Download Submit
memory/4072-0-0x00007FFA24463000-0x00007FFA24465000-memory.dmp

Filesize
8KB

Download
memory/4072-1-0x0000000000CD0000-0x0000000000FF4000-memory.dmp

Filesize
3.1MB

Download
memory/4072-2-0x00007FFA24460000-0x00007FFA24F21000-memory.dmp

Filesize
10.8MB

Download
memory/4072-10-0x00007FFA24460000-0x00007FFA24F21000-memory.dmp

Filesize
10.8MB

Download
memory/4532-9-0x00007FFA24460000-0x00007FFA24F21000-memory.dmp

Filesize
10.8MB

Download
memory/4532-11-0x00007FFA24460000-0x00007FFA24F21000-memory.dmp

Filesize
10.8MB

Download
memory/4532-12-0x0000000003170000-0x00000000031C0000-memory.dmp

Filesize
320KB

Download
memory/4532-13-0x000000001C3A0000-0x000000001C452000-memory.dmp

Filesize
712KB

Download
memory/4532-16-0x000000001BD20000-0x000000001BD32000-memory.dmp

Filesize
72KB

Download
memory/4532-17-0x000000001CBA0000-0x000000001CBDC000-memory.dmp

Filesize
240KB

Download
memory/4532-18-0x00007FFA24460000-0x00007FFA24F21000-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