quasar | f6b0fc6a5f4a112d39fcd842b40ed94d1b5ce5497740a203d387f8b8671e6197

General

Target

Virus4.exe
Size

348KB
MD5

6c4612f6b207a0eb617b398da7b7f59d
SHA1

34619dc1f2d62f62860d101652a0e150cd4bf817
SHA256

f6b0fc6a5f4a112d39fcd842b40ed94d1b5ce5497740a203d387f8b8671e6197
SHA512

5c8d3c5311f94732bda158ff10c7c6e88581972cd7271a548c6db1db90fed4fc531c9fcc57b9910b0ac863db305b9d455916da710b5b97181b604bce70685bc7
SSDEEP

6144:t16bPXhLApfp/eJ3NP9rVD6ykbgD/IuU8dIVlF7rPa:fmhApkJJ9rVDNjTIuUGIx7rPa

Score

10^/10

quasar hackeado papu discovery spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

hackeado papu

C2

dbxs31c.localto.net:3491

Mutex

QSR_MUTEX_Da9VX0BUJqFSTadPhi

Attributes

encryption_key
I8mNHC6UK41sX6rFwFmk
install_name
Windows.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Windows
subdirectory
SubDir

Signatures

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

Quasar payload 2 IoCs

Processes:

resource	yara_rule
behavioral1/memory/516-1-0x0000000000150000-0x00000000001AE000-memory.dmp	family_quasar
behavioral1/files/0x0008000000023cb2-11.dat	family_quasar

Executes dropped EXE 1 IoCs

Processes:

Windows.exe

pid	Process
4976	Windows.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow	ioc
16	ip-api.com

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

Virus4.exeschtasks.exeWindows.exeschtasks.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Virus4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Windows.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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

Processes:

schtasks.exeschtasks.exe

pid	Process
4472	schtasks.exe
976	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Virus4.exeWindows.exe

description	pid	Process
Token: SeDebugPrivilege	516	Virus4.exe
Token: SeDebugPrivilege	4976	Windows.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Windows.exe

pid	Process
4976	Windows.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

Virus4.exeWindows.exe

description	pid	Process	procid_target
PID 516 wrote to memory of 4472	516	Virus4.exe	84
PID 516 wrote to memory of 4472	516	Virus4.exe	84
PID 516 wrote to memory of 4472	516	Virus4.exe	84
PID 516 wrote to memory of 4976	516	Virus4.exe	86
PID 516 wrote to memory of 4976	516	Virus4.exe	86
PID 516 wrote to memory of 4976	516	Virus4.exe	86
PID 4976 wrote to memory of 976	4976	Windows.exe	89
PID 4976 wrote to memory of 976	4976	Windows.exe	89
PID 4976 wrote to memory of 976	4976	Windows.exe	89

C:\Users\Admin\AppData\Local\Temp\Virus4.exe
"C:\Users\Admin\AppData\Local\Temp\Virus4.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:516
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks" /create /tn "Windows" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\Virus4.exe" /rl HIGHEST /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4472
- C:\Users\Admin\AppData\Roaming\SubDir\Windows.exe
  "C:\Users\Admin\AppData\Roaming\SubDir\Windows.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4976
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks" /create /tn "Windows" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Windows.exe" /rl HIGHEST /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:976

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
348KB

MD5
6c4612f6b207a0eb617b398da7b7f59d

SHA1
34619dc1f2d62f62860d101652a0e150cd4bf817

SHA256
f6b0fc6a5f4a112d39fcd842b40ed94d1b5ce5497740a203d387f8b8671e6197

SHA512
5c8d3c5311f94732bda158ff10c7c6e88581972cd7271a548c6db1db90fed4fc531c9fcc57b9910b0ac863db305b9d455916da710b5b97181b604bce70685bc7

Download Submit
memory/516-6-0x00000000057A0000-0x00000000057B2000-memory.dmp

Filesize
72KB

Download
memory/516-2-0x00000000050D0000-0x0000000005674000-memory.dmp

Filesize
5.6MB

Download
memory/516-3-0x0000000004B20000-0x0000000004BB2000-memory.dmp

Filesize
584KB

Download
memory/516-4-0x0000000075440000-0x0000000075BF0000-memory.dmp

Filesize
7.7MB

Download
memory/516-5-0x0000000004A80000-0x0000000004AE6000-memory.dmp

Filesize
408KB

Download
memory/516-0-0x000000007544E000-0x000000007544F000-memory.dmp

Filesize
4KB

Download
memory/516-7-0x0000000005CE0000-0x0000000005D1C000-memory.dmp

Filesize
240KB

Download
memory/516-1-0x0000000000150000-0x00000000001AE000-memory.dmp

Filesize
376KB

Download
memory/516-14-0x0000000075440000-0x0000000075BF0000-memory.dmp

Filesize
7.7MB

Download
memory/4976-15-0x0000000075440000-0x0000000075BF0000-memory.dmp

Filesize
7.7MB

Download
memory/4976-16-0x0000000075440000-0x0000000075BF0000-memory.dmp

Filesize
7.7MB

Download
memory/4976-18-0x00000000063F0000-0x00000000063FA000-memory.dmp

Filesize
40KB

Download
memory/4976-19-0x0000000075440000-0x0000000075BF0000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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