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General

  • Target

    899859da24d37f27235b52d83379a30f525ac738d66b44e7d37943e0f6595396

  • Size

    2.0MB

  • Sample

    240312-mfdacage74

  • MD5

    cf77e816a9eed276d7b0537084f1c8df

  • SHA1

    b1d75e826497a6c7f253e86798e3f85e4a7bbe08

  • SHA256

    899859da24d37f27235b52d83379a30f525ac738d66b44e7d37943e0f6595396

  • SHA512

    8f138c17bc5cd0ab41a5db11de271fc61fc8646fcce54f2103e25ccdd2f27873dab90ba70ce87a77f088e208ee14765cec98b2e6d90dca13630ba46b304ad9c6

  • SSDEEP

    49152:LPImNQB7he9zS2dvMZ8cZLVS6W/iZab3sZlZm8mS:0Qoc9O6kZJxS6OZ8X

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.145

Attributes
  • url_path

    /3cd2b41cbde8fc9c.php

Targets

    • Target

      899859da24d37f27235b52d83379a30f525ac738d66b44e7d37943e0f6595396

    • Size

      2.0MB

    • MD5

      cf77e816a9eed276d7b0537084f1c8df

    • SHA1

      b1d75e826497a6c7f253e86798e3f85e4a7bbe08

    • SHA256

      899859da24d37f27235b52d83379a30f525ac738d66b44e7d37943e0f6595396

    • SHA512

      8f138c17bc5cd0ab41a5db11de271fc61fc8646fcce54f2103e25ccdd2f27873dab90ba70ce87a77f088e208ee14765cec98b2e6d90dca13630ba46b304ad9c6

    • SSDEEP

      49152:LPImNQB7he9zS2dvMZ8cZLVS6W/iZab3sZlZm8mS:0Qoc9O6kZJxS6OZ8X

    • Stealc

      Stealc is an infostealer written in C++.

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Target

      $PLUGINSDIR/INetC.dll

    • Size

      21KB

    • MD5

      2b342079303895c50af8040a91f30f71

    • SHA1

      b11335e1cb8356d9c337cb89fe81d669a69de17e

    • SHA256

      2d5d89025911e2e273f90f393624be4819641dbee1606de792362e442e54612f

    • SHA512

      550452dadc86ecd205f40668894116790a456fe46e9985d68093d36cf32abf00edecb5c56ff0287464a0e819db7b3cc53926037a116de6c651332a7cc8035d47

    • SSDEEP

      384:KOoVVefeWsI7rsIquPLNN546o0Ac9khYLMkIX0+Gzyekv:4VVaeE7wIqyJN5i

    Score
    3/10
    • Target

      $TEMP/BroomSetup.exe

    • Size

      1.7MB

    • MD5

      eee5ddcffbed16222cac0a1b4e2e466e

    • SHA1

      28b40c88b8ea50b0782e2bcbb4cc0f411035f3d5

    • SHA256

      2a40e5dccc7526c4982334941c90f95374460e2a816e84e724e98c4d52ae8c54

    • SHA512

      8f88901f3ebd425818db09f268df19ccf8a755603f04e9481bcf02b112a84393f8a900ead77f8f971bfa33fd9fa5636b7494aaee864a0fb04e3273911a4216dc

    • SSDEEP

      49152:YUnaQiKJ8N+AadA6mICFhNGffVCPi9NUko6jE:ZwKa+u6mICFSwPKDK

    Score
    7/10
    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Target

      $TEMP/syncUpd.exe

    • Size

      199KB

    • MD5

      220cb1b1688c2364b9ab272e37b896f3

    • SHA1

      3cb7b248bb15c6e51b0f58ec71c1f12c443c37b9

    • SHA256

      24db4554df7ef6ba312c16c14f72d20471da31e494f688ab01462c5a02124fe7

    • SHA512

      f2b18a3f0adaa70f871afa689c32591744e867dd1fae3b24344b842202ab9dc73723309391b7b98b72b45a55ef506b981db38d7a753b9d6712a198700a427e37

    • SSDEEP

      3072:5EDOdYXCI4YRr894Olhr7W+HOqGWhhaWodg9jID8l7lhImC:mNX74YRLOLvGWL0Ah0

    • Stealc

      Stealc is an infostealer written in C++.

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

MITRE ATT&CK Enterprise v15

Tasks