quasar | a54fd7f525cb0224089e696d9d3238276ce40020f26e5a76e074e870a78f346c

Analysis

max time kernel
148s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
07-12-2024 19:19

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General

Target

hopewas.exe
Size

3.1MB
MD5

0ceeaf1cbbc2b1b0cb4dcb0b762981cd
SHA1

632c334a16ecd83fa67589a027f8faca28e0d949
SHA256

a54fd7f525cb0224089e696d9d3238276ce40020f26e5a76e074e870a78f346c
SHA512

288914bcd5c70b2d3c8f2e180151da992f4369803e20e9661b5088dcf11e9fd8475a135230e1b8cebea9609f23fb90c7e98a5d86d4f7403e655b4fdc3e58dd2c
SSDEEP

49152:fvqe821/aQWl8P0lSk3aKA3Z+nb7RJ6jbR3LoGdbTHHB72eh2NT:fvB821/aQWl8P0lSk3DA3Z+nb7RJ6V

Score

10^/10

quasar thecoolfile spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

thecoolfile

dfsgmnhsrf23456623423456-20848.portmap.host:20848

127.0.0.1:1278

Mutex

05682bd0-f41d-4c88-ae18-f0789e825a5c

Attributes

encryption_key
B42CE86AEBA4D8818352F4D811EA7BBB472E229A
install_name
windows defender.exe
log_directory
Logs
reconnect_delay
3000
startup_key
discord
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/4468-1-0x00000000008E0000-0x0000000000C04000-memory.dmp	family_quasar
behavioral1/files/0x000a000000023b6e-6.dat	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
1400	windows defender.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
2472	schtasks.exe
4324	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4468	hopewas.exe
Token: SeDebugPrivilege	1400	windows defender.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1400	windows defender.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4468 wrote to memory of 2472	4468	hopewas.exe	82
PID 4468 wrote to memory of 2472	4468	hopewas.exe	82
PID 4468 wrote to memory of 1400	4468	hopewas.exe	84
PID 4468 wrote to memory of 1400	4468	hopewas.exe	84
PID 1400 wrote to memory of 4324	1400	windows defender.exe	85
PID 1400 wrote to memory of 4324	1400	windows defender.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\hopewas.exe
"C:\Users\Admin\AppData\Local\Temp\hopewas.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4468
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks" /create /tn "discord" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\windows defender.exe" /rl HIGHEST /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2472
- C:\Users\Admin\AppData\Roaming\SubDir\windows defender.exe
  "C:\Users\Admin\AppData\Roaming\SubDir\windows defender.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1400
- - C:\Windows\SYSTEM32\schtasks.exe
    "schtasks" /create /tn "discord" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\windows defender.exe" /rl HIGHEST /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:4324

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\windows defender.exe

Filesize
3.1MB

MD5
0ceeaf1cbbc2b1b0cb4dcb0b762981cd

SHA1
632c334a16ecd83fa67589a027f8faca28e0d949

SHA256
a54fd7f525cb0224089e696d9d3238276ce40020f26e5a76e074e870a78f346c

SHA512
288914bcd5c70b2d3c8f2e180151da992f4369803e20e9661b5088dcf11e9fd8475a135230e1b8cebea9609f23fb90c7e98a5d86d4f7403e655b4fdc3e58dd2c

Download Submit
memory/1400-9-0x00007FFDB5640000-0x00007FFDB6101000-memory.dmp

Filesize
10.8MB

Download
memory/1400-11-0x00007FFDB5640000-0x00007FFDB6101000-memory.dmp

Filesize
10.8MB

Download
memory/1400-12-0x000000001C030000-0x000000001C080000-memory.dmp

Filesize
320KB

Download
memory/1400-13-0x000000001C140000-0x000000001C1F2000-memory.dmp

Filesize
712KB

Download
memory/1400-14-0x000000001C930000-0x000000001CE58000-memory.dmp

Filesize
5.2MB

Download
memory/1400-15-0x00007FFDB5640000-0x00007FFDB6101000-memory.dmp

Filesize
10.8MB

Download
memory/1400-16-0x00007FFDB5640000-0x00007FFDB6101000-memory.dmp

Filesize
10.8MB

Download
memory/4468-0-0x00007FFDB5643000-0x00007FFDB5645000-memory.dmp

Filesize
8KB

Download
memory/4468-1-0x00000000008E0000-0x0000000000C04000-memory.dmp

Filesize
3.1MB

Download
memory/4468-2-0x00007FFDB5640000-0x00007FFDB6101000-memory.dmp

Filesize
10.8MB

Download
memory/4468-10-0x00007FFDB5640000-0x00007FFDB6101000-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