General

  • Target

    SilverClient.exe

  • Size

    43KB

  • Sample

    240625-qpqhtasdpd

  • MD5

    77fda5e38c292f48e568618c980553d5

  • SHA1

    c9129b35547fb2944602ba43f367add9e69ac727

  • SHA256

    79c33bcc420c33d9ee3c6c7beea67266cf2ed9322b3a90d75dc0928e10d368a2

  • SHA512

    7c9850bf8f547eac3780af4e86d022b667788ce43ea8772d86148c891807405d5048f29222d3dd45905ffe6f83f7306d32664af2416dd3ed80968dbd790810da

  • SSDEEP

    768:+7hgNKhqg+Z7J88NxEi/UK/V00i/iZgEGGooooXJrRUT0D9P/G5l7IzyxyB6S1//:+7hgNKhiNxEXK90z0jrGAD9W5l8mQosX

Malware Config

Extracted

Family

silverrat

Version

1.0.0.0

C2

modern-educators.gl.at.ply.gg:23695

Mutex

SilverMutex_avehRqDAnD

Attributes
  • certificate

    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

  • decrypted_key

    -|S.S.S|-

  • key

    yy6zDjAUmbB09pKvo5Hhug==

  • key_x509

    b1RBRWdVVEREdlVzQ2tXWFJYWEdHTU5vWkRSVmNx

  • reconnect_delay

    4

  • server_signature

    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

Targets

    • Target

      SilverClient.exe

    • Size

      43KB

    • MD5

      77fda5e38c292f48e568618c980553d5

    • SHA1

      c9129b35547fb2944602ba43f367add9e69ac727

    • SHA256

      79c33bcc420c33d9ee3c6c7beea67266cf2ed9322b3a90d75dc0928e10d368a2

    • SHA512

      7c9850bf8f547eac3780af4e86d022b667788ce43ea8772d86148c891807405d5048f29222d3dd45905ffe6f83f7306d32664af2416dd3ed80968dbd790810da

    • SSDEEP

      768:+7hgNKhqg+Z7J88NxEi/UK/V00i/iZgEGGooooXJrRUT0D9P/G5l7IzyxyB6S1//:+7hgNKhiNxEXK90z0jrGAD9W5l8mQosX

    • SilverRat

      SilverRat is trojan written in C#.

    • Silverrat family

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

    • Executes dropped EXE

    • Adds Run key to start application

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

MITRE ATT&CK Enterprise v15

Tasks