quasar | b7521fbbcc6a7324f8c8849b5e16dfc2a00d1b648e70b47a93a2b97ac4df3738

General

Target

AutoWizard.exe
Size

3.1MB
MD5

10940d658a4c54da91d0c0724d47644e
SHA1

da3d9e51ccc7432746d066337fb459bbf624c92a
SHA256

b7521fbbcc6a7324f8c8849b5e16dfc2a00d1b648e70b47a93a2b97ac4df3738
SHA512

a1ff398937f75c51dd199553cd41889cbf7c0e9b498f1fc6f26ad9ffc13778a189b74c5c7f577a85778215cfa89e85467046e1054b8684aeb9ff58383afdb15c
SSDEEP

49152:OvblL26AaNeWgPhlmVqvMQ7XSKfX8FEFUhk/bBLoGdZpTHHB72eh2NT:OvBL26AaNeWgPhlmVqkQ7XSKP8sRp

Score

10^/10

quasar office04 spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

natural-processor.gl.at.ply.gg:52897

Mutex

db07703d-6eb7-451c-b4c1-daa365c5e21a

Attributes

encryption_key
D6BBAE7A79E9CB135CA60E651F157605EA259426
install_name
AutoWizard.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Windows Defender
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/2156-1-0x0000000001220000-0x000000000154C000-memory.dmp	family_quasar
behavioral1/files/0x0008000000016c58-6.dat	family_quasar
behavioral1/memory/1424-8-0x0000000000E90000-0x00000000011BC000-memory.dmp	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
1424	AutoWizard.exe

Drops file in System32 directory 5 IoCs

description	ioc	Process
File created	C:\Windows\system32\SubDir\AutoWizard.exe	AutoWizard.exe
File opened for modification	C:\Windows\system32\SubDir\AutoWizard.exe	AutoWizard.exe
File opened for modification	C:\Windows\system32\SubDir	AutoWizard.exe
File opened for modification	C:\Windows\system32\SubDir\AutoWizard.exe	AutoWizard.exe
File opened for modification	C:\Windows\system32\SubDir	AutoWizard.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
2004	schtasks.exe
2752	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2156	AutoWizard.exe
Token: SeDebugPrivilege	1424	AutoWizard.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2156 wrote to memory of 2004	2156	AutoWizard.exe	30
PID 2156 wrote to memory of 2004	2156	AutoWizard.exe	30
PID 2156 wrote to memory of 2004	2156	AutoWizard.exe	30
PID 2156 wrote to memory of 1424	2156	AutoWizard.exe	32
PID 2156 wrote to memory of 1424	2156	AutoWizard.exe	32
PID 2156 wrote to memory of 1424	2156	AutoWizard.exe	32
PID 1424 wrote to memory of 2752	1424	AutoWizard.exe	33
PID 1424 wrote to memory of 2752	1424	AutoWizard.exe	33
PID 1424 wrote to memory of 2752	1424	AutoWizard.exe	33

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\AutoWizard.exe
"C:\Users\Admin\AppData\Local\Temp\AutoWizard.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2156
- C:\Windows\system32\schtasks.exe
  "schtasks" /create /tn "Windows Defender" /sc ONLOGON /tr "C:\Windows\system32\SubDir\AutoWizard.exe" /rl HIGHEST /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2004
- C:\Windows\system32\SubDir\AutoWizard.exe
  "C:\Windows\system32\SubDir\AutoWizard.exe"
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1424
- - C:\Windows\system32\schtasks.exe
    "schtasks" /create /tn "Windows Defender" /sc ONLOGON /tr "C:\Windows\system32\SubDir\AutoWizard.exe" /rl HIGHEST /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2752

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\System32\SubDir\AutoWizard.exe

Filesize
3.1MB

MD5
10940d658a4c54da91d0c0724d47644e

SHA1
da3d9e51ccc7432746d066337fb459bbf624c92a

SHA256
b7521fbbcc6a7324f8c8849b5e16dfc2a00d1b648e70b47a93a2b97ac4df3738

SHA512
a1ff398937f75c51dd199553cd41889cbf7c0e9b498f1fc6f26ad9ffc13778a189b74c5c7f577a85778215cfa89e85467046e1054b8684aeb9ff58383afdb15c

Download Submit
memory/1424-8-0x0000000000E90000-0x00000000011BC000-memory.dmp

Filesize
3.2MB

Download
memory/1424-11-0x000007FEF5B40000-0x000007FEF652C000-memory.dmp

Filesize
9.9MB

Download
memory/1424-10-0x000007FEF5B40000-0x000007FEF652C000-memory.dmp

Filesize
9.9MB

Download
memory/1424-12-0x000007FEF5B40000-0x000007FEF652C000-memory.dmp

Filesize
9.9MB

Download
memory/1424-13-0x000007FEF5B40000-0x000007FEF652C000-memory.dmp

Filesize
9.9MB

Download
memory/2156-0-0x000007FEF5B43000-0x000007FEF5B44000-memory.dmp

Filesize
4KB

Download
memory/2156-1-0x0000000001220000-0x000000000154C000-memory.dmp

Filesize
3.2MB

Download
memory/2156-2-0x000007FEF5B40000-0x000007FEF652C000-memory.dmp

Filesize
9.9MB

Download
memory/2156-9-0x000007FEF5B40000-0x000007FEF652C000-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