Overview

overview

10

Static

static

10

bNcd.exe

windows7-x64

10

bNcd.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    135s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-05-2023 13:16

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General

  • Target

    bNcd.exe

  • Size

    348KB

  • MD5

    327bb4dfec8cfc425678b2a9afc6d592

  • SHA1

    da7e52a4666e8fb50f04453e2966954f2aeb9174

  • SHA256

    575a2f0d48c457c8dcc8d5ef5a964adbb50b48c7dda5d35592e1db58f8401a98

  • SHA512

    daeae0c7ddaf892576a0f7e51898c666dfa139ec37f311996ff57119b0a98e48bdd6e56e191ed40bc2882a77715845fe875ed0bd2fab16e805669055cd67f9c0

  • SSDEEP

    6144:37qQ4i1FFiEK5zLuDl+BTlbRjlV4dFsiz7fKUB+q:rpliRySvIsi/fKUcq

Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

Office04

C2

cryptersandtools.ddns.com.br:5552

Mutex

QSR_MUTEX_PV7LCoiUmiwD1RBPCq

Attributes
  • encryption_key

    2yfSzdUNgSe9EVCk7VEH

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

    trojanspywarequasar
  • Quasar payload 1 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bNcd.exe
    "C:\Users\Admin\AppData\Local\Temp\bNcd.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3044

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/3044-133-0x0000000000770000-0x00000000007CE000-memory.dmp
    Filesize

    376KB

    Download
  • memory/3044-134-0x00000000055F0000-0x0000000005B94000-memory.dmp
    Filesize

    5.6MB

    Download
  • memory/3044-135-0x0000000005130000-0x00000000051C2000-memory.dmp
    Filesize

    584KB

    Download
  • memory/3044-136-0x0000000005120000-0x0000000005130000-memory.dmp
    Filesize

    64KB

    Download
  • memory/3044-137-0x00000000050B0000-0x0000000005116000-memory.dmp
    Filesize

    408KB

    Download
  • memory/3044-138-0x0000000006080000-0x0000000006092000-memory.dmp
    Filesize

    72KB

    Download
  • memory/3044-139-0x00000000064A0000-0x00000000064DC000-memory.dmp
    Filesize

    240KB

    Download
  • memory/3044-140-0x0000000005120000-0x0000000005130000-memory.dmp
    Filesize

    64KB

    Download
  • memory/3044-141-0x0000000006660000-0x000000000666A000-memory.dmp
    Filesize

    40KB

    Download