Overview

overview

10

Static

static

10

Client-built.exe

windows10-2004-x64

10

Client-built.exe

windows11-21h2-x64

10

Sharing

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General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • Sample

    250115-wnqp3s1rhq

  • MD5

    79069701295f944d67c5f2e0213b3b9c

  • SHA1

    589e8b6227ec6ef923f7eb8e4dc96797593f9535

  • SHA256

    ff62c26c8faf00f841ddeae1e095b8a65a9cb4e0d2a01879aaa8d767c4550cf8

  • SHA512

    472570fbf5ee21c05d9e40aaef32686b5f3f63eba93c7f3efdc23493e74017cea8b2a91a1ac7d8cdbc67fedb18f4dcae20c08fa3b6486807fa38d03dd2114f67

  • SSDEEP

    49152:mvjI22SsaNYfdPBldt698dBcjHtqRJ6sbR3LoGdnTHHB72eh2NT:mvc22SsaNYfdPBldt6+dBcjHtqRJ62

Score
10/10
quasartest-ratdiscoveryspywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

test-rat

C2

46.125.249.50:4782:4782

Mutex

e2bb43be-2392-4c93-9a3c-dcea173d5afd

Attributes
  • encryption_key

    AE2F816185F134AF4E7D747D3E55802DE0F16A45

  • install_name

    Virus-Rat.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Windows Defender Update

  • subdirectory

    Rat-Test-cx

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      79069701295f944d67c5f2e0213b3b9c

    • SHA1

      589e8b6227ec6ef923f7eb8e4dc96797593f9535

    • SHA256

      ff62c26c8faf00f841ddeae1e095b8a65a9cb4e0d2a01879aaa8d767c4550cf8

    • SHA512

      472570fbf5ee21c05d9e40aaef32686b5f3f63eba93c7f3efdc23493e74017cea8b2a91a1ac7d8cdbc67fedb18f4dcae20c08fa3b6486807fa38d03dd2114f67

    • SSDEEP

      49152:mvjI22SsaNYfdPBldt698dBcjHtqRJ6sbR3LoGdnTHHB72eh2NT:mvc22SsaNYfdPBldt6+dBcjHtqRJ62

    Score
    10/10
    quasartest-ratdiscoveryspywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar family

      quasar

    • Quasar payload

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks