General

  • Target

    InstallSetup5.exe

  • Size

    2.1MB

  • Sample

    240315-dn56naeh9v

  • MD5

    d13a70671a090e75be405722b39eb723

  • SHA1

    18e51494c2b131ff742e127ad7cf85d69f6e37c5

  • SHA256

    fe3569fd841379a341e023408b95c7ef64c0182f2ae1eb442192c9daedd34b7d

  • SHA512

    d4a42c1cb46076ab3f1b2fe6be3bef3aa74f3f0a7499eb54f6b851c4bc1d04911d4e668e12b9a9d1b151e440787f4780d119dc18a0d9a45e5eade41ea14c8d13

  • SSDEEP

    49152:L6jV7DcmrWcVRmOH6dmap6oDjgQjIyBKsBQ:u9QSs4C6oDjKsBQ

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.145

Attributes
  • url_path

    /3cd2b41cbde8fc9c.php

Targets

    • Target

      InstallSetup5.exe

    • Size

      2.1MB

    • MD5

      d13a70671a090e75be405722b39eb723

    • SHA1

      18e51494c2b131ff742e127ad7cf85d69f6e37c5

    • SHA256

      fe3569fd841379a341e023408b95c7ef64c0182f2ae1eb442192c9daedd34b7d

    • SHA512

      d4a42c1cb46076ab3f1b2fe6be3bef3aa74f3f0a7499eb54f6b851c4bc1d04911d4e668e12b9a9d1b151e440787f4780d119dc18a0d9a45e5eade41ea14c8d13

    • SSDEEP

      49152:L6jV7DcmrWcVRmOH6dmap6oDjgQjIyBKsBQ:u9QSs4C6oDjKsBQ

    • 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

      237KB

    • MD5

      2dca1d0c0e9f892a717ed02f6e90211a

    • SHA1

      5857f867c5fb4bedc25794c1f960b3c03dfabccf

    • SHA256

      b589fe21a9c02115d64fa8adab169804c69532eb2476132135a568afd179cefb

    • SHA512

      2f84804935e96ba3ced308deaa1c5c8b991b4ab70551b192fbedee36b629b12780d338f84e2ed95e427eb4b93c6def9aa82d15f1d97add3fa8366b620463bd5d

    • SSDEEP

      3072:n5OouXOc9+0lciElaRX1YtaoC/orEVeYybizeWu/Mu24Z1LbeMDpf9:0kc9ZF9+t9roLdCiMd

    • 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