Analysis

  • max time kernel
    149s
  • max time network
    18s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    26/02/2025, 22:48

General

  • Target

    4d44d3bd207c6453e5800c9a81b871fdaf1d9134a6844208beb0e5691a72ea2c.exe

  • Size

    43KB

  • MD5

    c9d63b574535d1a152ac8fff684d0873

  • SHA1

    8f2ec46434df436b94fea84263f05ee6a441c7d1

  • SHA256

    4d44d3bd207c6453e5800c9a81b871fdaf1d9134a6844208beb0e5691a72ea2c

  • SHA512

    aedcab74280078f05c8e6265627e3490b5c1357e7434e4f0a5114a00d9bae30b55563d66793683566f49b7e0239995f1bf965687d80b68d4cff5847258a024ea

  • SSDEEP

    768:ePyFZFASe0Ep0EpHZplRpqpd6rqxn4p6vghzwYu7vih9GueIh9j2IoHAjU+Eh6I7:e6q10k0EFjed6rqJ+6vghzwYu7vih9Gn

Malware Config

Extracted

Family

blihanstealer

Mutex

pomdfghrt

Attributes
  • user_agent

    Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident/4.0; CIBA; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022)

Signatures

  • BlihanStealer

    Blihan is a stealer written in C++.

  • Blihanstealer family
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Windows directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4d44d3bd207c6453e5800c9a81b871fdaf1d9134a6844208beb0e5691a72ea2c.exe
    "C:\Users\Admin\AppData\Local\Temp\4d44d3bd207c6453e5800c9a81b871fdaf1d9134a6844208beb0e5691a72ea2c.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1628
    • C:\Windows\microsofthelp.exe
      "C:\Windows\microsofthelp.exe"
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Drops file in Windows directory
      PID:2224

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Windows\microsofthelp.exe

          Filesize

          43KB

          MD5

          af552c8acc742a9905b4e8ae0c991ed8

          SHA1

          6ea12c2e8dbe4e2fa3025360e9a7db32aa832360

          SHA256

          e71320a222786c9dee6dde9e3e80fe652ef516610062b13f18786f0cc190ef27

          SHA512

          9e635baa0ea3f165493df15ca917871be057190c6219563227235fa02e96cee512e4f35b7da073875baceba682ebbdd979da2117e4e3255e346b6fc4f7db11be

        • memory/1628-0-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB

        • memory/1628-3-0x0000000000220000-0x000000000022E000-memory.dmp

          Filesize

          56KB

        • memory/1628-10-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB

        • memory/1628-8-0x0000000000220000-0x000000000022E000-memory.dmp

          Filesize

          56KB

        • memory/2224-11-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB

        • memory/2224-13-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB