Analysis

  • max time kernel
    149s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    26/02/2025, 20:29

General

  • Target

    1b48897d2c2666441d7a9bc569ef1220e5821beb0668e4f559fe2082b1c36c5e.exe

  • Size

    45KB

  • MD5

    744fa6c9c5772efc39baf7f19b1e68e5

  • SHA1

    4838a04ae6ae13b05e4302942dd632e39b955f46

  • SHA256

    1b48897d2c2666441d7a9bc569ef1220e5821beb0668e4f559fe2082b1c36c5e

  • SHA512

    f167e0f4304d8d5ace989f187f51d6f8ea9137f18700010e7249d103807ec41a9f513a31db13701a33320adbd54be0b6f31399c858e3842d3e3f9567247d551a

  • SSDEEP

    768:ePyFZFASe0Ep0EpHZplRpqpd6rqxn4p6vghzwYu7vih9GueIh9j2IoHAcBHUIFvz: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\1b48897d2c2666441d7a9bc569ef1220e5821beb0668e4f559fe2082b1c36c5e.exe
    "C:\Users\Admin\AppData\Local\Temp\1b48897d2c2666441d7a9bc569ef1220e5821beb0668e4f559fe2082b1c36c5e.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2460
    • C:\Windows\microsofthelp.exe
      "C:\Windows\microsofthelp.exe"
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Drops file in Windows directory
      PID:1288

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Windows\microsofthelp.exe

          Filesize

          45KB

          MD5

          a059b05b82d736bdfa10d4ab7311152b

          SHA1

          85eb5cb44dc9de713d335a0939550bb741246fa6

          SHA256

          1b2e54b0a1b611f1d72de5ee2feaaa63aeab48f3046d8f573cc1407300babf35

          SHA512

          f17024805dfa9fd7ab855ec753a7f59d75ec06723fb8ecd4286cf52802a146e68ebc3d9e1a6eebdb7b463544baed1b4c5d06d65be7338bda9b14d37733e24ed4

        • memory/1288-11-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB

        • memory/2460-0-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB

        • memory/2460-8-0x0000000000220000-0x000000000022E000-memory.dmp

          Filesize

          56KB

        • memory/2460-7-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB