Overview

overview

10

Static

static

10

loader.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    loader.exe

  • Size

    44KB

  • Sample

    241128-1xwd5sxrbr

  • MD5

    e4e58b0f1c15003574a494e4b48e3f9c

  • SHA1

    fb63c0a2bf0f4b24e5b788196d98a358f754eb64

  • SHA256

    0aabdf641f3d52d11b464745e1b42b091efa0e5ba91738bb1c11700b612d97e5

  • SHA512

    cf27741f51a30f44e8d2abe9bbadeae20af85d0bae8da318e4af51635edd04448ada3c56d07f47a58df0e0da4585f5ff94ac43d26573d51df92b2008893c4744

  • SSDEEP

    768:ZnKfS0ROTyd1HrTWAM20ZxM/x1ph4yAGnRUT/p9wInQh6B6SpWXvrbVBPU:Zk66/x1DqGnG19goosWXfVRU

Score
10/10
silverratevasionexecutionpersistencetrojan

Malware Config

Extracted

Family

silverrat

Version

1.0.0.0

C2

functions-transexual.gl.at.ply.gg:43180

Mutex

lAxDBRhAFu

Attributes
  • certificate

    MIIE4DCCAsigAwIBAgIQAKQYOfZd86J2BfNjhG4CWTANBgkqhkiG9w0BAQ0FADARMQ8wDQYDVQQDDAZTaWx2ZXIwIBcNMjIwODI2MTkwMTA4WhgPOTk5OTEyMzEyMzU5NTlaMBExDzANBgNVBAMMBlNpbHZlcjCCAiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIBAPbpOWfhZTuOfEaqqImTTe5dNHAAry7/mf00DCoI4lPZfypsc1tYraxSPFeayGu09a3qdhkWKSVIgwnu2n4GLQNOCY9fh/1oyrX4Iir3BIkYeU7pKTWgjhUlAmFAUAaNr0ca23Ku2kN79jrDzRznOgE2DEW4p7OiM4Mb097ma9lzu7MyssHbY4VCteAhj9HZiplqBxaC1vXDmzxqG+gUZ1aLcyG7ssdkOjtWVBgT3gD/gOl7KchRzCFB1egDC/vD9WZCG35U3Ngi+IkTznoXR1R06cq4v0UnGjE37R2vcB21qb0ZYNiZJXZHv5i9+R7xoPeNoLda5PqnfGGbhPvNEdD56mdcOKlzGIuyemLkUo8texdpiBWKbtc3JZf5VsKxjJtHDK3xW6gDGI+PAirzGkFPmwcf8WgsblvzLg8OZpVxVs8rmKWoi6qIrf4CXnyl73J4lgzW+ir7PjANAQXwLNGdNnvdMeLeo/muGQPdeNpr6OczGGnkWA4qniHeL51/Gx0a8A+jP9zKiyu+qHcsP2IotgWDH/KlzJVr7IAum+DV92uV8poTDcUNcHaKvhHA65KmEtsvLbK6lFZcAMC0eWC0VgpW44T1/16rOaaky5mP6rTMc3nSyOl/lU/XgAgGGQPe22bRLWYzd3WVeEpI1WnHYXS+tL9IOe4kJP+pYsWDAgMBAAGjMjAwMB0GA1UdDgQWBBR32TJj2LeUx9L+RcSOvmFV6VJq6TAPBgNVHRMBAf8EBTADAQH/MA0GCSqGSIb3DQEBDQUAA4ICAQA+qucSOi7ov7Q1FmAjMf925KuvKuCNwJiu3Sqo3FDGVAD1fAwAi2FdyuXEO2VIUPZCkalFcBna5rqyrc6tcS4T0IL2TsYLrsuGir7PWP7CAcft1urYS1HpNpHxeH/nixwnQaQs/MuRmdm2TeCj6G21P5BTW55U5y9sMPSYwhbD2N7XLgnSQd5Y+80TR7FUiye/k3D37fI9PRhSQGbfYFRQQTmxj84dPTnY5CVgaY9d8fNiFZkyjaZdf+mibK0xQTf+xLVVj+toDNCkc1F462TdmFhCrHd4PoMo0yLDNv4SC6NLRq4haWDRtORw6gd5GYIoCQ3m3oQvNlNxXhhIjsOyxkxOrkCD0c+57PIc7EmKXieJa/XxnkcIVxO8dvTY/vijuz/VaZYl/lPu9ckuqgJ1wRvvsHl70Trv4Mn4X5uCIqRFFlK/mSOZbLIguGkDN3QIZABvej89vlZMhrVfZOG2oawe23FskHjv7thF/WzOXtWw6RUVC1V+hCwbuxFNUjZmmOTUwdXHnus7I2AuiG6Jz1+y9aYiXBcVTdSljxjHRRmiRaAnY94h58vN8NJ4hKL2GVCo6LxkpuplmcntJN0cKraKTPxSXcCRrqWxX9qoIbfvBcUU4vH1jPJCCLNCuDyD3lgQkpPVvq0EMU1a2HFGgMEQMjpYpb38rcadDhT5ag==

  • decrypted_key

    -|S.S.S|-

  • discord

    https://discord.com/api/webhooks/1303745149020667914/kQyaG_tFY62VZNt9yNbv3N84w4AomnzGkaN-Uuv7jh2gKVFiPdpQiJIOUV53IcNqbVzh

  • key

    yy6zDjAUmbB09pKvo5Hhug==

  • key_x509

    RURjWW9nVHFWREhZcnNESmpObEx1VnVPVEVDZ0Zu

  • payload_url

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

  • reconnect_delay

    4

  • server_signature

    J2CE/6enhOYv/t93SNbQiaNffca0QC5m1IJTYKjgOfMnvMbA/og5hUlurELwpLoG6uTO14rU14F3tSSwQBhyjaDerPLXDav5EhsWtEincselSG9rwU7PLfAVL1gnCFB9rQdkro7gz0o2j1XULWmukjaatM5laO48aaT4nRAkOWCKyb1kGvcTHHUPiNKOL7kRIaQpRZbCjaOfNopWHyRNbkI1kRkUU3Gi7vWPU+ntF8Fb7xybSYI6xRXx5BtVOhDGKJ23sDbOFfmZltxD/V3Y8Z9OzWbzlmnTojHp/SJ4PNnEZmj3IH5quJ/L292AskRFv6Gd3uDxpE6zR3B+nRyNwOEyWeym4FrMeObQi5GjLX/Vno8fr8U6h3pVymf4VkA7QlzVKFHvEX3LISnvY39NUXzSsVie/Knk57x+FCcsJPUKxj51eX6KNazVl9dQ9k+Fwd3AXBQj3yg52Ip+YTTbAXh3uaoQRIUl9VMlW5CgxuqP8GjtsH4Dkf2Aa1k+zh2y/xDtxtnoZpXGYzzuQDRl/Q0/zCFWRxcwo9UP40qCvpyiKRI/7TZcTkzgH9PgJG5KJbqHaPXN1oEsk1vo9cpoDg3q3IOp5maOl3i4wMK1U0DkkoZP6lfBeSY4QWPXE9i9HXwilhIaE21pkcTEg3r7XPgCaM8UFjGY04ubXhWPc/A=

Targets

    • Target

      loader.exe

    • Size

      44KB

    • MD5

      e4e58b0f1c15003574a494e4b48e3f9c

    • SHA1

      fb63c0a2bf0f4b24e5b788196d98a358f754eb64

    • SHA256

      0aabdf641f3d52d11b464745e1b42b091efa0e5ba91738bb1c11700b612d97e5

    • SHA512

      cf27741f51a30f44e8d2abe9bbadeae20af85d0bae8da318e4af51635edd04448ada3c56d07f47a58df0e0da4585f5ff94ac43d26573d51df92b2008893c4744

    • SSDEEP

      768:ZnKfS0ROTyd1HrTWAM20ZxM/x1ph4yAGnRUT/p9wInQh6B6SpWXvrbVBPU:Zk66/x1DqGnG19goosWXfVRU

    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

    • 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

    behavioral1

MITRE ATT&CK Enterprise v15

Tasks