Overview

overview

10

Static

static

3

SilverClient.exe

windows7-x64

10

SilverClient.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • submitted
    25/05/2024, 13:59

Sharing

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General

  • Target

    SilverClient.exe

  • Size

    39KB

  • MD5

    bb820dba445c96268a461c079ec18989

  • SHA1

    63df61ccaf3279d23bea3e07b5b8012fae7d09ba

  • SHA256

    64b7de42e8c9a574ad6e9fff493fbab46dcd174a0e1759a1b204274dd8f2dbc0

  • SHA512

    9fac2b1f6d7140e5054958b123f8bbfddd86fb09727deb007a288ab9c85b0ecf38c56b1cdd17298a73aaf73ef784c427800bcb50e8ef5e6534605b14f90dcc85

  • SSDEEP

    768:J2P7BLBW9U/hnvREaKv34+VnWuPlqJ01cqRU7KTXz1QB6S8w21QrfOoQSKTt0bE:cTBYQEaKvpPlH1cqGq1Qonw21UOo5K57

Score
10/10
silverratstormkittystealertrojan

Malware Config

Extracted

Family

silverrat

Version

1.0.0.0

C2

dvd-fell.gl.at.ply.gg:62021

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/1243622555793887374/b5Ufp0mu8Jq8c1VDEDNZ3BkrL_JFkxxu8pHqUYxTdLWa_BHhwzODmtZa907as0b3a93l

  • key

    yy6zDjAUmbB09pKvo5Hhug==

  • key_x509

    b0FGeVZNcFRMWVloVHR6Z0VESU5RdlpZUmxZbUFE

  • payload_url

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

  • reconnect_delay

    4

  • server_signature

    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

Signatures

  • SilverRat

    SilverRat is trojan written in C#.

    trojansilverrat
  • Silverrat family
    silverrat
  • StormKitty

    StormKitty is an open source info stealer written in C#.

    stealerstormkitty
  • StormKitty payload 1 IoCs
  • Stormkitty family
    stormkitty
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\SilverClient.exe
    "C:\Users\Admin\AppData\Local\Temp\SilverClient.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:4480
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1704
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4144 --field-trial-handle=2276,i,11674642242468042059,14711253743544118298,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:2960

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4480-0-0x00007FFA05EA3000-0x00007FFA05EA5000-memory.dmp

      Filesize

      8KB

      Download

    • memory/4480-1-0x0000000000330000-0x000000000033E000-memory.dmp

      Filesize

      56KB

      Download

    • memory/4480-2-0x00007FFA05EA0000-0x00007FFA06961000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/4480-5-0x00007FFA05EA3000-0x00007FFA05EA5000-memory.dmp

      Filesize

      8KB

      Download

    • memory/4480-6-0x00007FFA05EA0000-0x00007FFA06961000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/4480-8-0x0000000000CB0000-0x0000000000CC0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4480-9-0x0000000000CD0000-0x0000000000CFA000-memory.dmp

      Filesize

      168KB

      Download