quasar | 1ba41fb95f728823e54159eb05c34a545ddb09cb2d942b8d7b6de29537204a80

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
17-12-2024 02:21

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General

Target

1ba41fb95f728823e54159eb05c34a545ddb09cb2d942b8d7b6de29537204a80.exe
Size

502KB
MD5

f5b150d54a0ba2d902974cbfd6249c56
SHA1

92e28c3d9ff4392eed379d816dda6939113830bd
SHA256

1ba41fb95f728823e54159eb05c34a545ddb09cb2d942b8d7b6de29537204a80
SHA512

57aade72ad0b45fdf1a6fdfa99e0d72165a9d3a77efd48c0fb5976ab605f6a395ab9817ea45f1f63994c772529b6b0c6448fa446d68c9859235ce43bf22cb688
SSDEEP

12288:gTEgdfYv/izUrFL4dywjapf/WI2TI/uqcdj:1Uwwq+ywjapHWbEcdj

Score

10^/10

quasar office04 spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.0

Botnet

Office04

192.168.31.99:4782

2001:4bc9:1f98:a4e::676:4782

255.255.255.0:4782

fe80::cabf:4cff:fe84:9572%17:4782

Mutex

1f65a787-81b8-4955-95e4-b7751e10cd50

Attributes

encryption_key
A0B82A50BBC49EC084E3E53A9E34DF58BD7050B9
install_name
Neverlose Loader.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Java Updater
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/1760-1-0x0000000000960000-0x00000000009E4000-memory.dmp	family_quasar
behavioral2/files/0x000a000000023b57-5.dat	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
1640	Neverlose Loader.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
2944	schtasks.exe
4856	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1760	1ba41fb95f728823e54159eb05c34a545ddb09cb2d942b8d7b6de29537204a80.exe
Token: SeDebugPrivilege	1640	Neverlose Loader.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1640	Neverlose Loader.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1760 wrote to memory of 2944	1760	1ba41fb95f728823e54159eb05c34a545ddb09cb2d942b8d7b6de29537204a80.exe	82
PID 1760 wrote to memory of 2944	1760	1ba41fb95f728823e54159eb05c34a545ddb09cb2d942b8d7b6de29537204a80.exe	82
PID 1760 wrote to memory of 1640	1760	1ba41fb95f728823e54159eb05c34a545ddb09cb2d942b8d7b6de29537204a80.exe	84
PID 1760 wrote to memory of 1640	1760	1ba41fb95f728823e54159eb05c34a545ddb09cb2d942b8d7b6de29537204a80.exe	84
PID 1640 wrote to memory of 4856	1640	Neverlose Loader.exe	85
PID 1640 wrote to memory of 4856	1640	Neverlose Loader.exe	85

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\1ba41fb95f728823e54159eb05c34a545ddb09cb2d942b8d7b6de29537204a80.exe
"C:\Users\Admin\AppData\Local\Temp\1ba41fb95f728823e54159eb05c34a545ddb09cb2d942b8d7b6de29537204a80.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1760
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks" /create /tn "Java Updater" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\1ba41fb95f728823e54159eb05c34a545ddb09cb2d942b8d7b6de29537204a80.exe" /rl HIGHEST /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2944
- C:\Users\Admin\AppData\Roaming\SubDir\Neverlose Loader.exe
  "C:\Users\Admin\AppData\Roaming\SubDir\Neverlose Loader.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1640
- - C:\Windows\SYSTEM32\schtasks.exe
    "schtasks" /create /tn "Java Updater" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Neverlose Loader.exe" /rl HIGHEST /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:4856

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\Neverlose Loader.exe

Filesize
502KB

MD5
f5b150d54a0ba2d902974cbfd6249c56

SHA1
92e28c3d9ff4392eed379d816dda6939113830bd

SHA256
1ba41fb95f728823e54159eb05c34a545ddb09cb2d942b8d7b6de29537204a80

SHA512
57aade72ad0b45fdf1a6fdfa99e0d72165a9d3a77efd48c0fb5976ab605f6a395ab9817ea45f1f63994c772529b6b0c6448fa446d68c9859235ce43bf22cb688

Download Submit
memory/1640-7-0x00007FFB82540000-0x00007FFB83001000-memory.dmp

Filesize
10.8MB

Download
memory/1640-10-0x00007FFB82540000-0x00007FFB83001000-memory.dmp

Filesize
10.8MB

Download
memory/1640-11-0x000000001B5B0000-0x000000001B600000-memory.dmp

Filesize
320KB

Download
memory/1640-12-0x000000001C050000-0x000000001C102000-memory.dmp

Filesize
712KB

Download
memory/1640-13-0x00007FFB82540000-0x00007FFB83001000-memory.dmp

Filesize
10.8MB

Download
memory/1760-0-0x00007FFB82543000-0x00007FFB82545000-memory.dmp

Filesize
8KB

Download
memory/1760-1-0x0000000000960000-0x00000000009E4000-memory.dmp

Filesize
528KB

Download
memory/1760-2-0x00007FFB82540000-0x00007FFB83001000-memory.dmp

Filesize
10.8MB

Download
memory/1760-9-0x00007FFB82540000-0x00007FFB83001000-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