quasar | d8a785ee093e2de80f62b04a8c2c2140cd71e4f759b0f8506b9b5e95b7a18797

Analysis

max time kernel
126s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
25-01-2025 20:54

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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
behavioral2/memory/1800-1-0x00000000008E0000-0x0000000000C04000-memory.dmp	family_quasar
behavioral2/files/0x0007000000023c59-6.dat	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
2404	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
2976	schtasks.exe
4996	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1800	Alantis.exe
Token: SeDebugPrivilege	2404	Alantis.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2404	Alantis.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1800 wrote to memory of 2976	1800	Alantis.exe	83
PID 1800 wrote to memory of 2976	1800	Alantis.exe	83
PID 1800 wrote to memory of 2404	1800	Alantis.exe	85
PID 1800 wrote to memory of 2404	1800	Alantis.exe	85
PID 2404 wrote to memory of 4996	2404	Alantis.exe	86
PID 2404 wrote to memory of 4996	2404	Alantis.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\Alantis.exe
"C:\Users\Admin\AppData\Local\Temp\Alantis.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1800
- 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:2976
- 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:2404
- - 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:4996

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
baf55b95da4a601229647f25dad12878

SHA1
abc16954ebfd213733c4493fc1910164d825cac8

SHA256
ee954c5d8156fd8890e582c716e5758ed9b33721258f10e758bdc31ccbcb1924

SHA512
24f502fedb1a305d0d7b08857ffc1db9b2359ff34e06d5748ecc84e35c985f29a20d9f0a533bea32d234ab37097ec0481620c63b14ac89b280e75e14d19fd545

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

Filesize
3.1MB

MD5
4383762bc2b4902a7a0a53de0f4fc86b

SHA1
1fdf25af3d2ce3b006a7bfc0ebf697e4d3bc6781

SHA256
d8a785ee093e2de80f62b04a8c2c2140cd71e4f759b0f8506b9b5e95b7a18797

SHA512
8d3b1ebe39bfe0f8562f8d79371d2611dfe7bcd1faf23540393c7454c72dd0ff5b707fb192dbe5102ccdb911b2c753d0eb48b8da3e2916fa1e49e89b98cbf6be

Download Submit
memory/1800-0-0x00007FFC6E593000-0x00007FFC6E595000-memory.dmp

Filesize
8KB

Download
memory/1800-1-0x00000000008E0000-0x0000000000C04000-memory.dmp

Filesize
3.1MB

Download
memory/1800-2-0x00007FFC6E590000-0x00007FFC6F051000-memory.dmp

Filesize
10.8MB

Download
memory/1800-10-0x00007FFC6E590000-0x00007FFC6F051000-memory.dmp

Filesize
10.8MB

Download
memory/2404-11-0x00007FFC6E590000-0x00007FFC6F051000-memory.dmp

Filesize
10.8MB

Download
memory/2404-12-0x00007FFC6E590000-0x00007FFC6F051000-memory.dmp

Filesize
10.8MB

Download
memory/2404-13-0x000000001B070000-0x000000001B0C0000-memory.dmp

Filesize
320KB

Download
memory/2404-14-0x000000001B980000-0x000000001BA32000-memory.dmp

Filesize
712KB

Download
memory/2404-15-0x00007FFC6E590000-0x00007FFC6F051000-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