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
    27/02/2025, 04:07

General

  • Target

    b50033ffc563ae8e149574b75a726aaaa970cfb168fb538ad6df098e3f87cedf.exe

  • Size

    72KB

  • MD5

    28d319677ad95453ca6f28a7a805216f

  • SHA1

    d266ca0561cb76c4aaf8ad4c94eb16b425453265

  • SHA256

    b50033ffc563ae8e149574b75a726aaaa970cfb168fb538ad6df098e3f87cedf

  • SHA512

    4c6844bd2c3edb5e1b255e3dca4035d850c015c4e8e5b792b586a5f9d85f18f8bdef4106fd0f3af683d4d43ca9d230e89daa5899afe239c7c31931db795127d7

  • SSDEEP

    1536:lAo0ej2d6rnJwwvlKlIUBP6vghzwYu7vih9GueIh9j2IoHAjUvJQ/johleHhvGhW:lAo1lOwvlKlXBP6vghzwYu7vih9GueIp

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\b50033ffc563ae8e149574b75a726aaaa970cfb168fb538ad6df098e3f87cedf.exe
    "C:\Users\Admin\AppData\Local\Temp\b50033ffc563ae8e149574b75a726aaaa970cfb168fb538ad6df098e3f87cedf.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3080
    • 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:3396

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Windows\microsofthelp.exe

          Filesize

          72KB

          MD5

          8b37ebbdbf57a826f2f35e399355788b

          SHA1

          3aa3a4479ec9534b9d504a9afdbbd8b1d2f53b80

          SHA256

          ba0ec3da0a494a487f56f7c07d2e292356e05db026b06e20d0e3ba07ae460a2b

          SHA512

          ec5ef9e4d1b0070afc1f4fa82c436d139f34114af3cf434fa0985377454629e8da611aff74a3ca98472e42e5e6a2b1529d5ce5cf0fa2d8be38a4ddc0efdd2d1a

        • memory/3080-0-0x0000000000400000-0x000000000040F000-memory.dmp

          Filesize

          60KB

        • memory/3080-4-0x0000000000400000-0x000000000040F000-memory.dmp

          Filesize

          60KB

        • memory/3396-6-0x0000000000400000-0x000000000040F000-memory.dmp

          Filesize

          60KB