Overview

overview

10

Static

static

10

753dc24d28...7f.exe

windows7-x64

10

753dc24d28...7f.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    753dc24d28740f01aef352fdb7e63b77c5c2eabc1acd6ce31f35be16f0ddad7f

  • Size

    45KB

  • Sample

    241118-1bkqhswdrq

  • MD5

    7be4b0b2f700401c020e936fcbb55f52

  • SHA1

    9fdc76da221ea52120cf79b6491a55a40c019de3

  • SHA256

    753dc24d28740f01aef352fdb7e63b77c5c2eabc1acd6ce31f35be16f0ddad7f

  • SHA512

    30e2d2d591370a82c20f5886f7d0c799a4f11b1c9de0de0c354787afb57b4a3f7351d182334ddcd971b37f5fcec3dc262e5810eb24f3014595d9da82d4f9219d

  • SSDEEP

    768:fWHoI5XPDHzT8d7tGjOr1IS72G5JBCASbBRUT0h9SGQ889LWrB6SSe7vrQ/HNHy:fW5k7tGU1vljSVGAh9189LWroFe7M/Hc

Score
10/10
silverratevasionexecutionpersistencetrojan

Malware Config

Extracted

Family

silverrat

Version

1.0.0.0

C2

109.120.138.220:9999

Mutex

SilverMutex_eFDAYafReG

Attributes
  • certificate

    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

  • decrypted_key

    -|S.S.S|-

  • discord

    https://discord.com/api/webhooks/1306009594367180840/Zg6W2rH_yPNkl7Hn5Z-GWjtm8W94xN_PzceHo8g5RjjoNr4vkRdq1c70arvb91az-VPT

  • key

    yy6zDjAUmbB09pKvo5Hhug==

  • key_x509

    QVR3SE5ZVndSU29kUlRqb0RrYVFEenVZQ3pacUJF

  • payload_url

    https://g.top4top.io/p_2522c7w8u1.png

  • reconnect_delay

    4

  • server_signature

    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

Targets

    • Target

      753dc24d28740f01aef352fdb7e63b77c5c2eabc1acd6ce31f35be16f0ddad7f

    • Size

      45KB

    • MD5

      7be4b0b2f700401c020e936fcbb55f52

    • SHA1

      9fdc76da221ea52120cf79b6491a55a40c019de3

    • SHA256

      753dc24d28740f01aef352fdb7e63b77c5c2eabc1acd6ce31f35be16f0ddad7f

    • SHA512

      30e2d2d591370a82c20f5886f7d0c799a4f11b1c9de0de0c354787afb57b4a3f7351d182334ddcd971b37f5fcec3dc262e5810eb24f3014595d9da82d4f9219d

    • SSDEEP

      768:fWHoI5XPDHzT8d7tGjOr1IS72G5JBCASbBRUT0h9SGQ889LWrB6SSe7vrQ/HNHy:fW5k7tGU1vljSVGAh9189LWroFe7M/Hc

    Score
    10/10
    silverratevasionexecutionpersistencetrojan

    • 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.

      evasion

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

      execution

    • Legitimate hosting services abused for malware hosting/C2

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks