General

  • Target

    RuntimeBroker.exe

  • Size

    63KB

  • Sample

    240731-v63lxszfrc

  • MD5

    f5a40491d3d4f90d1f414c932841741e

  • SHA1

    8f8a02955aa090e13d29138507446fe7e566a99a

  • SHA256

    fe2c786ed4dd2c76c6352623c6b46644a9a640eb1093fdadd53688f9940f6bdc

  • SHA512

    ede3a856ec9374c68c57b8d8ba3a44c124c115c5b56c7eee9c3699a37c49828c2bec5e26a917ce186f1d23b54f01f2651f1f099084a3a6a1f3ad9ec54f3c0476

  • SSDEEP

    1536:vZI9tj/J4cDzCAzVBOnhKfMZ4JGbbpwAiCkbnonGfkpqKmY7:vZctj/J4cDz5B8hfgGbbplWnoovz

Score
10/10

Malware Config

Extracted

Family

asyncrat

Version

ChuWaWa 5.2

Botnet

ChuWaWa

C2

31.173.170.243:7777

Mutex

ChuWaWaRatMutex_penka

Attributes
  • delay

    1

  • install

    true

  • install_file

    RuntimeBroker.exe

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      RuntimeBroker.exe

    • Size

      63KB

    • MD5

      f5a40491d3d4f90d1f414c932841741e

    • SHA1

      8f8a02955aa090e13d29138507446fe7e566a99a

    • SHA256

      fe2c786ed4dd2c76c6352623c6b46644a9a640eb1093fdadd53688f9940f6bdc

    • SHA512

      ede3a856ec9374c68c57b8d8ba3a44c124c115c5b56c7eee9c3699a37c49828c2bec5e26a917ce186f1d23b54f01f2651f1f099084a3a6a1f3ad9ec54f3c0476

    • SSDEEP

      1536:vZI9tj/J4cDzCAzVBOnhKfMZ4JGbbpwAiCkbnonGfkpqKmY7:vZctj/J4cDz5B8hfgGbbplWnoovz

    Score
    10/10
    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers written in C#.

    • Async RAT payload

    • Checks computer location settings

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

    • Executes dropped EXE

MITRE ATT&CK Enterprise v15

Tasks