Overview

overview

10

Static

static

10

Windows Se...on.exe

windows7-x64

10

Windows Se...on.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    Windows Security Notification.exe

  • Size

    86KB

  • Sample

    241220-3l4mgswrcv

  • MD5

    434184cbd1ab6d8b3e6d04d69df75f4f

  • SHA1

    39788e96ff6c0a7f1e7e257715e64b696198151b

  • SHA256

    57ac4fcdd291af70d43b28025bbf95a4d4ac1d0955b075f159e97dcfe7685740

  • SHA512

    4dcd69e84e8b031d83953a9165745c6daba6538cfebf4e76cf6f7f3f92aef4d334013be15d2b20bd4d126994059e1c1d1733ab444954ff3cf26e99f912c01c2c

  • SSDEEP

    768:nMWKyi7didYfW/QdVXxRWl7H2+ZKJ7smhQpq/BRUT0fk9wGluB6SrDDv6/bB2Lj9:nMe2YVHYDCpwGAc9mokDDS/l2Lj9

Score
10/10
silverratevasionpersistencetrojan

Malware Config

Extracted

Family

silverrat

Version

1.0.0.0

C2

policies-beside.gl.at.ply.gg:9967

Mutex

xhhCQtIByF

Attributes
  • certificate

    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

  • decrypted_key

    -|S.S.S|-

  • discord

    https://discord.com/api/webhooks/1307565056380108840/pkpOqO-Y8vruO8aeIu53yzS3l1IFMwpDSYDrGkNa1byaHAiKSa4-gLYX_DpLfjxLj0q9

  • key

    yy6zDjAUmbB09pKvo5Hhug==

  • key_x509

    RFNmZ1JPaXBaQXBxS05BdUdsQWNWU0VHREZSbmRK

  • payload_url

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

  • reconnect_delay

    4

  • server_signature

    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

Targets

    • Target

      Windows Security Notification.exe

    • Size

      86KB

    • MD5

      434184cbd1ab6d8b3e6d04d69df75f4f

    • SHA1

      39788e96ff6c0a7f1e7e257715e64b696198151b

    • SHA256

      57ac4fcdd291af70d43b28025bbf95a4d4ac1d0955b075f159e97dcfe7685740

    • SHA512

      4dcd69e84e8b031d83953a9165745c6daba6538cfebf4e76cf6f7f3f92aef4d334013be15d2b20bd4d126994059e1c1d1733ab444954ff3cf26e99f912c01c2c

    • SSDEEP

      768:nMWKyi7didYfW/QdVXxRWl7H2+ZKJ7smhQpq/BRUT0fk9wGluB6SrDDv6/bB2Lj9:nMe2YVHYDCpwGAc9mokDDS/l2Lj9

    Score
    10/10
    silverratevasionpersistencetrojan

    • 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

    • Legitimate hosting services abused for malware hosting/C2

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks