General

  • Target

    445a1e93bbceaf5f9ed11d734be7b848539c77884ca765294474cdbbb1efc3c9

  • Size

    2.1MB

  • Sample

    240315-nn1laafc3v

  • MD5

    9c1432a30130f66196a6259811b3362e

  • SHA1

    641b58388774d9211611fa7306f6dc0b12b81e3e

  • SHA256

    445a1e93bbceaf5f9ed11d734be7b848539c77884ca765294474cdbbb1efc3c9

  • SHA512

    2cdceafc620580bf2fda443543ce6747c6fcd70d568543b19a92c6dd59dad772174bd107f46719df76569979f1b6c54b132b33db4b5ebdcdf2c09fe8403c7c7f

  • SSDEEP

    49152:LtxTZBbTxM10lznY8ZNdZN+bKc3WFcYr2xwLFhxsN34kS8:xxTbTE0lzY8n4Kcmkw1sJz

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.145

Attributes
  • url_path

    /3cd2b41cbde8fc9c.php

Targets

    • Target

      445a1e93bbceaf5f9ed11d734be7b848539c77884ca765294474cdbbb1efc3c9

    • Size

      2.1MB

    • MD5

      9c1432a30130f66196a6259811b3362e

    • SHA1

      641b58388774d9211611fa7306f6dc0b12b81e3e

    • SHA256

      445a1e93bbceaf5f9ed11d734be7b848539c77884ca765294474cdbbb1efc3c9

    • SHA512

      2cdceafc620580bf2fda443543ce6747c6fcd70d568543b19a92c6dd59dad772174bd107f46719df76569979f1b6c54b132b33db4b5ebdcdf2c09fe8403c7c7f

    • SSDEEP

      49152:LtxTZBbTxM10lznY8ZNdZN+bKc3WFcYr2xwLFhxsN34kS8:xxTbTE0lzY8n4Kcmkw1sJz

    • 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

      236KB

    • MD5

      873e724733f7b9c9c52ef2f48579143b

    • SHA1

      cc6cea0575b222f37369df74a469dd8b67a3bb2a

    • SHA256

      ebdf91a7510471ae708aaa5add4f16444ee063ec4ad127c76367101c4419943a

    • SHA512

      7251ade13718f71fc99745a4c89626b53107a697c7369b2bcb3869b4229e0bc23eb579c5294320e58e9553a3b62fe73fed804dbe4b9a686981027d83f857ca18

    • SSDEEP

      3072:f0uhK5B142tpioBMWCHYbuvrzPto5TTflWRYR5TbML1P4kAu8TMG+y:fun1BCoBK4bOHYTj48xAL1ZAuwn9

    • 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