quasar | d68f05e53c7442acc2a4f45dcada6edcc6a2ae5538ae504181176e9eed419e71

Analysis

max time kernel
126s
max time network
139s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
09/07/2024, 01:34

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General

Target

nigger.exe
Size

3.1MB
MD5

4999b135603f44230d18f73c4308bffe
SHA1

691754c54a1aa05a09ed28512d1b0abf6968ac15
SHA256

d68f05e53c7442acc2a4f45dcada6edcc6a2ae5538ae504181176e9eed419e71
SHA512

e3a5362cdea95b0a0d5bb1b5b59d9d01948228d2a4ba216281ae2854523a6c11600251dbde18123e7c017f6d7712060ab089bdcc0f0b91db65ba8cf226c6fb06
SSDEEP

49152:DvXG42pda6D+/PjlLOlg6yQipVBXac5L3Ak/d8oGd2LdTHHB72eh2NT:Dv242pda6D+/PjlLOlZyQipVhaV

Score

10^/10

quasar massdm spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

massdm

192.168.1.156:4782

r-minolta.gl.at.ply.gg:63431

Mutex

7a0df206-428b-4b7b-939a-21fd6eb0a342

Attributes

encryption_key
EB77EF1E2C1E9FC0CC580EBFBB1E68F8B012F37E
install_name
massdm.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Update
subdirectory
SubDir

Signatures

Quasar RAT
Quasar is an open source Remote Access Tool.
trojan spyware quasar

Quasar payload 3 IoCs

resource	yara_rule
behavioral1/memory/1756-1-0x0000000000270000-0x0000000000594000-memory.dmp	family_quasar
behavioral1/files/0x0034000000015bd7-6.dat	family_quasar
behavioral1/memory/3048-10-0x0000000000100000-0x0000000000424000-memory.dmp	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
3048	massdm.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
1920	schtasks.exe
2864	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1756	nigger.exe
Token: SeDebugPrivilege	3048	massdm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3048	massdm.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1756 wrote to memory of 1920	1756	nigger.exe	29
PID 1756 wrote to memory of 1920	1756	nigger.exe	29
PID 1756 wrote to memory of 1920	1756	nigger.exe	29
PID 1756 wrote to memory of 3048	1756	nigger.exe	31
PID 1756 wrote to memory of 3048	1756	nigger.exe	31
PID 1756 wrote to memory of 3048	1756	nigger.exe	31
PID 3048 wrote to memory of 2864	3048	massdm.exe	32
PID 3048 wrote to memory of 2864	3048	massdm.exe	32
PID 3048 wrote to memory of 2864	3048	massdm.exe	32

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\nigger.exe
"C:\Users\Admin\AppData\Local\Temp\nigger.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1756
- C:\Windows\system32\schtasks.exe
  "schtasks" /create /tn "Update" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\massdm.exe" /rl HIGHEST /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1920
- C:\Users\Admin\AppData\Roaming\SubDir\massdm.exe
  "C:\Users\Admin\AppData\Roaming\SubDir\massdm.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3048
- - C:\Windows\system32\schtasks.exe
    "schtasks" /create /tn "Update" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\massdm.exe" /rl HIGHEST /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2864

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\massdm.exe

Filesize
3.1MB

MD5
4999b135603f44230d18f73c4308bffe

SHA1
691754c54a1aa05a09ed28512d1b0abf6968ac15

SHA256
d68f05e53c7442acc2a4f45dcada6edcc6a2ae5538ae504181176e9eed419e71

SHA512
e3a5362cdea95b0a0d5bb1b5b59d9d01948228d2a4ba216281ae2854523a6c11600251dbde18123e7c017f6d7712060ab089bdcc0f0b91db65ba8cf226c6fb06

Download Submit
memory/1756-0-0x000007FEF5A63000-0x000007FEF5A64000-memory.dmp

Filesize
4KB

Download
memory/1756-1-0x0000000000270000-0x0000000000594000-memory.dmp

Filesize
3.1MB

Download
memory/1756-2-0x000007FEF5A60000-0x000007FEF644C000-memory.dmp

Filesize
9.9MB

Download
memory/1756-8-0x000007FEF5A60000-0x000007FEF644C000-memory.dmp

Filesize
9.9MB

Download
memory/3048-9-0x000007FEF5A60000-0x000007FEF644C000-memory.dmp

Filesize
9.9MB

Download
memory/3048-10-0x0000000000100000-0x0000000000424000-memory.dmp

Filesize
3.1MB

Download
memory/3048-11-0x000007FEF5A60000-0x000007FEF644C000-memory.dmp

Filesize
9.9MB

Download
memory/3048-12-0x000007FEF5A60000-0x000007FEF644C000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads