quasar | d8a785ee093e2de80f62b04a8c2c2140cd71e4f759b0f8506b9b5e95b7a18797

Analysis

max time kernel
3s
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
25-01-2025 20:45

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General

Target

Alantis.exe
Size

3.1MB
MD5

4383762bc2b4902a7a0a53de0f4fc86b
SHA1

1fdf25af3d2ce3b006a7bfc0ebf697e4d3bc6781
SHA256

d8a785ee093e2de80f62b04a8c2c2140cd71e4f759b0f8506b9b5e95b7a18797
SHA512

8d3b1ebe39bfe0f8562f8d79371d2611dfe7bcd1faf23540393c7454c72dd0ff5b707fb192dbe5102ccdb911b2c753d0eb48b8da3e2916fa1e49e89b98cbf6be
SSDEEP

49152:mvyI22SsaNYfdPBldt698dBcjHsLxNESEsk/iwLoGdhTTHHB72eh2NT:mvf22SsaNYfdPBldt6+dBcjHMxvO

Score

10^/10

quasar user 1 spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

User 1

98.7.107.133:4782

Mutex

23bbbc6e-4ec1-49b8-a1ff-368f79119ac2

Attributes

encryption_key
52726EFCD3973C2418A54B3559AAEB44B57B8A6A
install_name
Alantis.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Windows Defender
subdirectory
Roblox

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/2460-1-0x0000000000F00000-0x0000000001224000-memory.dmp	family_quasar
behavioral1/files/0x001a00000002ab74-5.dat	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
4620	Alantis.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
2800	schtasks.exe
2924	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2460	Alantis.exe
Token: SeDebugPrivilege	4620	Alantis.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4620	Alantis.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2460 wrote to memory of 2924	2460	Alantis.exe	77
PID 2460 wrote to memory of 2924	2460	Alantis.exe	77
PID 2460 wrote to memory of 4620	2460	Alantis.exe	79
PID 2460 wrote to memory of 4620	2460	Alantis.exe	79
PID 4620 wrote to memory of 2800	4620	Alantis.exe	80
PID 4620 wrote to memory of 2800	4620	Alantis.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\Alantis.exe
"C:\Users\Admin\AppData\Local\Temp\Alantis.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2460
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks" /create /tn "Windows Defender" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Roblox\Alantis.exe" /rl HIGHEST /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2924
- C:\Users\Admin\AppData\Roaming\Roblox\Alantis.exe
  "C:\Users\Admin\AppData\Roaming\Roblox\Alantis.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4620
- - C:\Windows\SYSTEM32\schtasks.exe
    "schtasks" /create /tn "Windows Defender" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Roblox\Alantis.exe" /rl HIGHEST /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2800

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\Local\Microsoft\CLR_v4.0\UsageLogs\Alantis.exe.log

Filesize
1KB

MD5
b4e91d2e5f40d5e2586a86cf3bb4df24

SHA1
31920b3a41aa4400d4a0230a7622848789b38672

SHA256
5d8af3c7519874ed42a0d74ee559ae30d9cc6930aef213079347e2b47092c210

SHA512
968751b79a98961f145de48d425ea820fd1875bae79a725adf35fc8f4706c103ee0c7babd4838166d8a0dda9fbce3728c0265a04c4b37f335ec4eaa110a2b319

Download Submit
C:\Users\Admin\AppData\Roaming\Roblox\Alantis.exe

Filesize
3.1MB

MD5
4383762bc2b4902a7a0a53de0f4fc86b

SHA1
1fdf25af3d2ce3b006a7bfc0ebf697e4d3bc6781

SHA256
d8a785ee093e2de80f62b04a8c2c2140cd71e4f759b0f8506b9b5e95b7a18797

SHA512
8d3b1ebe39bfe0f8562f8d79371d2611dfe7bcd1faf23540393c7454c72dd0ff5b707fb192dbe5102ccdb911b2c753d0eb48b8da3e2916fa1e49e89b98cbf6be

Download Submit
memory/2460-0-0x00007FFBBC783000-0x00007FFBBC785000-memory.dmp

Filesize
8KB

Download
memory/2460-1-0x0000000000F00000-0x0000000001224000-memory.dmp

Filesize
3.1MB

Download
memory/2460-2-0x00007FFBBC780000-0x00007FFBBD242000-memory.dmp

Filesize
10.8MB

Download
memory/2460-10-0x00007FFBBC780000-0x00007FFBBD242000-memory.dmp

Filesize
10.8MB

Download
memory/4620-11-0x00007FFBBC780000-0x00007FFBBD242000-memory.dmp

Filesize
10.8MB

Download
memory/4620-12-0x00007FFBBC780000-0x00007FFBBD242000-memory.dmp

Filesize
10.8MB

Download
memory/4620-13-0x000000001BAF0000-0x000000001BB40000-memory.dmp

Filesize
320KB

Download
memory/4620-14-0x000000001C490000-0x000000001C542000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads