quasar | f3d4f0a9c0f837998e9ac15b067a74fa15cea74db186e1067fd55eea657ae3f3

General

Target

Virus.exe
Size

348KB
MD5

325f748d4e40fd993021c4a39e60384d
SHA1

665c5980233d2081ecb638a5601950da52aec632
SHA256

f3d4f0a9c0f837998e9ac15b067a74fa15cea74db186e1067fd55eea657ae3f3
SHA512

5dfadcb320f93d8990e70f219cb6ecfeb0e8dc0bb90e3dbdbe4977e0ce8b029a1aeab91f272476f1dbab16191be287d072d8cfedd550893c9bdde268b1e02f95
SSDEEP

6144:s16bPXhLApfp07Dbj82MGlfCtfb5vJtTamdYxM4HX2vuJrq:QmhApSPeFKmd4rHXXrq

Score

10^/10

quasar hackeado papu discovery spyware stealer trojan

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

hackeado papu

C2

dbxs31c.localto.net:5853

Mutex

QSR_MUTEX_Da9VX0BUJqFSTadPhi

Attributes

encryption_key
jmEyWTm6K6eGLE8Q3C6X
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

resource	yara_rule
behavioral1/memory/3716-1-0x0000000000DF0000-0x0000000000E4E000-memory.dmp	family_quasar
behavioral1/files/0x002a000000045034-8.dat	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
4216	Windows.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Looks up external IP address via web service 1 IoCs

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

flow	ioc
11	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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Virus.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Windows.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
4188	schtasks.exe
4104	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3716	Virus.exe
Token: SeDebugPrivilege	4216	Windows.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4216	Windows.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3716 wrote to memory of 4188	3716	Virus.exe	84
PID 3716 wrote to memory of 4188	3716	Virus.exe	84
PID 3716 wrote to memory of 4188	3716	Virus.exe	84
PID 3716 wrote to memory of 4216	3716	Virus.exe	86
PID 3716 wrote to memory of 4216	3716	Virus.exe	86
PID 3716 wrote to memory of 4216	3716	Virus.exe	86
PID 4216 wrote to memory of 4104	4216	Windows.exe	90
PID 4216 wrote to memory of 4104	4216	Windows.exe	90
PID 4216 wrote to memory of 4104	4216	Windows.exe	90

C:\Users\Admin\AppData\Local\Temp\Virus.exe
"C:\Users\Admin\AppData\Local\Temp\Virus.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3716
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks" /create /tn "Windows" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\Virus.exe" /rl HIGHEST /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4188
- 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:4216
- - 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:4104

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

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

2

T1552

Credentials In Files

1

T1552.001

Credentials in Registry

1

T1552.002

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
348KB

MD5
325f748d4e40fd993021c4a39e60384d

SHA1
665c5980233d2081ecb638a5601950da52aec632

SHA256
f3d4f0a9c0f837998e9ac15b067a74fa15cea74db186e1067fd55eea657ae3f3

SHA512
5dfadcb320f93d8990e70f219cb6ecfeb0e8dc0bb90e3dbdbe4977e0ce8b029a1aeab91f272476f1dbab16191be287d072d8cfedd550893c9bdde268b1e02f95

Download Submit
memory/3716-4-0x0000000074F10000-0x00000000756C1000-memory.dmp

Filesize
7.7MB

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memory/3716-11-0x0000000074F10000-0x00000000756C1000-memory.dmp

Filesize
7.7MB

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memory/3716-3-0x0000000005860000-0x00000000058F2000-memory.dmp

Filesize
584KB

Download
memory/3716-0-0x0000000074F1E000-0x0000000074F1F000-memory.dmp

Filesize
4KB

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memory/3716-5-0x0000000005900000-0x0000000005966000-memory.dmp

Filesize
408KB

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memory/3716-6-0x0000000006550000-0x0000000006562000-memory.dmp

Filesize
72KB

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memory/3716-2-0x0000000005CF0000-0x0000000006296000-memory.dmp

Filesize
5.6MB

Download
memory/3716-1-0x0000000000DF0000-0x0000000000E4E000-memory.dmp

Filesize
376KB

Download
memory/3716-7-0x0000000006A90000-0x0000000006ACC000-memory.dmp

Filesize
240KB

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memory/4216-10-0x0000000074F10000-0x00000000756C1000-memory.dmp

Filesize
7.7MB

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memory/4216-12-0x0000000074F10000-0x00000000756C1000-memory.dmp

Filesize
7.7MB

Download
memory/4216-14-0x00000000066F0000-0x00000000066FA000-memory.dmp

Filesize
40KB

Download
memory/4216-15-0x0000000074F10000-0x00000000756C1000-memory.dmp

Filesize
7.7MB

Download
memory/4216-16-0x0000000007190000-0x000000000722C000-memory.dmp

Filesize
624KB

Download
memory/4216-17-0x0000000007380000-0x00000000073D0000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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