Overview

overview

10

Static

static

10

ServersChe...ah.exe

windows10-2004-x64

10

ServersChe...ah.exe

windows11-21h2-x64

10

Sharing

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General

  • Target
    ServersCheatersCheetah.exe
  • Size 42KB
  • Sample260409-mjn61sd19p
  • SHA256 3233c63a75adffcbb61bbb4ee5f810bcf754becdc49a747ce37638d1da7b505f
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
silverratdefense_evasionexecutionpersistencetrojan

Malware Config

Extracted

Family

  • silverrat

Version

  • 1.0.0.0

C2

  • 144.31.237.190:1498:1498

Mutex

  • SilverMutex_kyUHeTlTEm

Attributes
  • certificate

    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

  • decrypted_key

    -|S.S.S|-

  • key

    yy6zDjAUmbB09pKvo5Hhug==

  • key_x509

    TXhEekFZUnRqRGRkYVhUTHRuSkV1TFZRWWlrRkVh

  • reconnect_delay

    4

  • server_signature

    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

Targets

    • Target
      ServersCheatersCheetah.exe
    • Size 42KB
    • SHA256 3233c63a75adffcbb61bbb4ee5f810bcf754becdc49a747ce37638d1da7b505f
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    defense_evasionexecutionsilverratpersistencetrojan

    • SilverRat

      SilverRat is trojan written in C#.

      trojansilverrat

    • Silverrat family

      silverrat

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

      defense_evasion

    • Checks computer location settings

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

    • Executes dropped EXE

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks