General

  • Target

    e46c03168b333ff732951c6f40972af475b8c0086492304d3f1ea9a7c5a8f277

  • Size

    2.0MB

  • Sample

    240312-3htywagb26

  • MD5

    fa1b59f5677ea263a16d9599f3115d9f

  • SHA1

    4dbb231bad499b9baf39bc8ba41f97f986057658

  • SHA256

    e46c03168b333ff732951c6f40972af475b8c0086492304d3f1ea9a7c5a8f277

  • SHA512

    e3040c6e10c58f4c93027410f10ebc909b9a20ab43cc74c4288a961cba385d3b3640e3c7c37c935c3cb4dfb83175836eb40fb8ba65530388d80f02f061b97dbf

  • SSDEEP

    49152:LJYU3OisXH32vZJVh7S2hYn9EzGMdo/Dh:lYU3OiaH32RU2hDfdyh

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.145

Attributes
  • url_path

    /3cd2b41cbde8fc9c.php

Targets

    • Target

      e46c03168b333ff732951c6f40972af475b8c0086492304d3f1ea9a7c5a8f277

    • Size

      2.0MB

    • MD5

      fa1b59f5677ea263a16d9599f3115d9f

    • SHA1

      4dbb231bad499b9baf39bc8ba41f97f986057658

    • SHA256

      e46c03168b333ff732951c6f40972af475b8c0086492304d3f1ea9a7c5a8f277

    • SHA512

      e3040c6e10c58f4c93027410f10ebc909b9a20ab43cc74c4288a961cba385d3b3640e3c7c37c935c3cb4dfb83175836eb40fb8ba65530388d80f02f061b97dbf

    • SSDEEP

      49152:LJYU3OisXH32vZJVh7S2hYn9EzGMdo/Dh:lYU3OiaH32RU2hDfdyh

    • 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

      200KB

    • MD5

      c722591f624fb69970f246b8c81d830f

    • SHA1

      85516decea5d6987bebe39cbadf36053beaf4bb0

    • SHA256

      13cd1152a19fdac6581cac2bd822f34bd3026ea1783ff231e299b6d28c046a6a

    • SHA512

      822584c5c8a0813af4d845e80919776c71a43464ab719d1c303ebaae6a8ed47763183566bedc9be2e8c44de8ee6fd62d1e12be471e5d5c73ae4b1dcdaa34a908

    • SSDEEP

      3072:8PDOu5suCmavnBRsuP6GTdbB27zP6FtHPUxX1GOL3+:455zaPBRPPj27uPH8jzu

    • 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