quasar | 981f2a7171d95727552a99245694f1283bc1188ec09d3946fb075c3fe1b0a2ce

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-01-2025 06:45

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General

Target

eclipse executor.exe
Size

3.1MB
MD5

9d918d732629fc36b8230dc336f1f8af
SHA1

50297e276fde5a6f9ccd115de12dbba9d3893e92
SHA256

981f2a7171d95727552a99245694f1283bc1188ec09d3946fb075c3fe1b0a2ce
SHA512

4898b309c1df3f79e2d026be2e19406d384b88d6b526957c253087007d01a23b3f40f1c375f1be5eee5f05121d361e82fe4c66845bc02b9aa6727cf820259b05
SSDEEP

49152:SvvI22SsaNYfdPBldt698dBcjH2j5VbR4jLoGdMITHHB72eh2NT:Svg22SsaNYfdPBldt6+dBcjH2j5Mv

Score

10^/10

quasar made spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

made

2001:569:7e70:6a00:c8f3:749c:278f:2c17:4782

Mutex

9d96368e-1352-46e3-8281-8f5eaf945edb

Attributes

encryption_key
AF603C3CFA231D1BD841E315C27377C7E4A49333
install_name
client.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Java startup
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/3512-1-0x00000000004F0000-0x0000000000814000-memory.dmp	family_quasar
behavioral2/files/0x000a000000023b7c-5.dat	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
2208	client.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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
2340	schtasks.exe
3672	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3512	eclipse executor.exe
Token: SeDebugPrivilege	2208	client.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2208	client.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2208	client.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2208	client.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3512 wrote to memory of 3672	3512	eclipse executor.exe	83
PID 3512 wrote to memory of 3672	3512	eclipse executor.exe	83
PID 3512 wrote to memory of 2208	3512	eclipse executor.exe	85
PID 3512 wrote to memory of 2208	3512	eclipse executor.exe	85
PID 2208 wrote to memory of 2340	2208	client.exe	86
PID 2208 wrote to memory of 2340	2208	client.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\eclipse executor.exe
"C:\Users\Admin\AppData\Local\Temp\eclipse executor.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3512
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks" /create /tn "Java startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\client.exe" /rl HIGHEST /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:3672
- C:\Users\Admin\AppData\Roaming\SubDir\client.exe
  "C:\Users\Admin\AppData\Roaming\SubDir\client.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2208
- - C:\Windows\SYSTEM32\schtasks.exe
    "schtasks" /create /tn "Java startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\client.exe" /rl HIGHEST /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2340

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\SubDir\client.exe

Filesize
3.1MB

MD5
9d918d732629fc36b8230dc336f1f8af

SHA1
50297e276fde5a6f9ccd115de12dbba9d3893e92

SHA256
981f2a7171d95727552a99245694f1283bc1188ec09d3946fb075c3fe1b0a2ce

SHA512
4898b309c1df3f79e2d026be2e19406d384b88d6b526957c253087007d01a23b3f40f1c375f1be5eee5f05121d361e82fe4c66845bc02b9aa6727cf820259b05

Download Submit
memory/2208-9-0x00007FFEE6C30000-0x00007FFEE76F1000-memory.dmp

Filesize
10.8MB

Download
memory/2208-10-0x00007FFEE6C30000-0x00007FFEE76F1000-memory.dmp

Filesize
10.8MB

Download
memory/2208-11-0x000000001C030000-0x000000001C080000-memory.dmp

Filesize
320KB

Download
memory/2208-12-0x000000001C140000-0x000000001C1F2000-memory.dmp

Filesize
712KB

Download
memory/2208-13-0x00007FFEE6C30000-0x00007FFEE76F1000-memory.dmp

Filesize
10.8MB

Download
memory/2208-14-0x00007FFEE6C30000-0x00007FFEE76F1000-memory.dmp

Filesize
10.8MB

Download
memory/3512-0-0x00007FFEE6C33000-0x00007FFEE6C35000-memory.dmp

Filesize
8KB

Download
memory/3512-1-0x00000000004F0000-0x0000000000814000-memory.dmp

Filesize
3.1MB

Download
memory/3512-2-0x00007FFEE6C30000-0x00007FFEE76F1000-memory.dmp

Filesize
10.8MB

Download
memory/3512-8-0x00007FFEE6C30000-0x00007FFEE76F1000-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