General

  • Target

    e491edd46a92006619573413c1cc359d43beef64bf5ea67a05231954488600fc

  • Size

    1.8MB

  • Sample

    240312-dltd3see9z

  • MD5

    3f2d86ceafd47034e0f84bb36b75df32

  • SHA1

    edb1b2aa6d3a735add58b07e409ca7cb948a06fd

  • SHA256

    e491edd46a92006619573413c1cc359d43beef64bf5ea67a05231954488600fc

  • SHA512

    4d89c355832919366afa9b0126c67a301cd42116c720da72726faf88481047536888fdd29c60d59ed7dcb1ad5480e9e10c64c2f0e605788f7959c5de5e333fce

  • SSDEEP

    49152:tIiiK2Saux5rU9a/x59h5bTTnWsnffEWbEdyX/fsU7:qiiK2LkG9A9h5PJEW4y7

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.145

Attributes
  • url_path

    /3cd2b41cbde8fc9c.php

Targets

    • Target

      e491edd46a92006619573413c1cc359d43beef64bf5ea67a05231954488600fc

    • Size

      1.8MB

    • MD5

      3f2d86ceafd47034e0f84bb36b75df32

    • SHA1

      edb1b2aa6d3a735add58b07e409ca7cb948a06fd

    • SHA256

      e491edd46a92006619573413c1cc359d43beef64bf5ea67a05231954488600fc

    • SHA512

      4d89c355832919366afa9b0126c67a301cd42116c720da72726faf88481047536888fdd29c60d59ed7dcb1ad5480e9e10c64c2f0e605788f7959c5de5e333fce

    • SSDEEP

      49152:tIiiK2Saux5rU9a/x59h5bTTnWsnffEWbEdyX/fsU7:qiiK2LkG9A9h5PJEW4y7

    • Stealc

      Stealc is an infostealer written in C++.

    • Detect binaries embedding considerable number of MFA browser extension IDs.

    • Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs.

    • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

    • UPX dump on OEP (original entry point)

    • Downloads MZ/PE file

    • 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

    • 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
    9/10
    • UPX dump on OEP (original entry point)

    • UPX packed file

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

    • Target

      $TEMP/syncUpd.exe

    • Size

      199KB

    • MD5

      dba6db51ea13e585aee6136021836641

    • SHA1

      591b41e2249cc40a9523680a2d1b162ba238c0d8

    • SHA256

      6223c0847ecdb1f05b88fafe144aee708e65933e094c70016ea51f3d2b89bc81

    • SHA512

      8201c37ada5306aebe6f87ce8967f1fc4c85a6105b5851ec0204a5538f54b9223637dadcfb64f81ab40b8c001c6ecaebdb90e62bf7734e41c4b540ca141b4f98

    • SSDEEP

      3072:9HPjz1hW1Avw3tBoSWJ7EeL661Q/RQlTZ5rnupqg8:dPVhWXopEeOjGlTZ0M

    • Stealc

      Stealc is an infostealer written in C++.

    • Detect binaries embedding considerable number of MFA browser extension IDs.

    • Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs.

    • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

    • Downloads MZ/PE file

    • 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

    • 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