Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/02/2025, 20:01

General

  • Target

    1198cd62c92232d85ed4eacb10180d83b2b36b713ad2f7cb45d264436995aa07.exe

  • Size

    40KB

  • MD5

    bac40a0d250c19f43f66aa6e9fd55cef

  • SHA1

    1e99622a7291dcd2f013c0cb27602f197c0c28b0

  • SHA256

    1198cd62c92232d85ed4eacb10180d83b2b36b713ad2f7cb45d264436995aa07

  • SHA512

    29625fa43d9e20a07e65f0af0a5eb7dcb5986179527cc521ee52802af8f7a2db6045e49e7e52fde70dbea55e77597436ef1fa251de98bc3a18918e633130a25d

  • SSDEEP

    768:ePyFZFASe0Ep0EpHZplRpqpd6rqxn4p6vghzwYu7vih9GueIh9j2IoHAjU+Eh6I:e6q10k0EFjed6rqJ+6vghzwYu7vih9Gk

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 2 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 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1198cd62c92232d85ed4eacb10180d83b2b36b713ad2f7cb45d264436995aa07.exe
    "C:\Users\Admin\AppData\Local\Temp\1198cd62c92232d85ed4eacb10180d83b2b36b713ad2f7cb45d264436995aa07.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4072
    • C:\Windows\microsofthelp.exe
      "C:\Windows\microsofthelp.exe"
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      PID:2144

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Windows\microsofthelp.exe

          Filesize

          40KB

          MD5

          cd1eefb2a6547427c5eaa029372491b6

          SHA1

          b7e73144e8a8c7d8acc2cc35c501d2f0bb81f10f

          SHA256

          f9949e8d80ce3e6a6254ec4ca192d1eb219d886bd10f4592e8836c2f9f2251aa

          SHA512

          117da656f96ee06e3855c17c8dfc2c38f0748f4acda87863b6776e27c909005d19ef058c21c9189366f8bafd3fae6876a963c794fe5c785b67e186076142ade0

        • memory/2144-7-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB

        • memory/4072-0-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB

        • memory/4072-6-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB