Analysis

  • max time kernel
    149s
  • max time network
    150s
  • 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, 03:18

General

  • Target

    a513f92aa2a10462508203646892b917be8673033d778a98ea3d63dcf793cb31.exe

  • Size

    45KB

  • MD5

    c10e3cb8e86fb2e00b02b97044dd08b4

  • SHA1

    0ade9fc0206107d1594285552f1a521182d0d4bd

  • SHA256

    a513f92aa2a10462508203646892b917be8673033d778a98ea3d63dcf793cb31

  • SHA512

    27ea1ed8554c54c56f58a17d21a0d44f11bdb8106bbfeef734400758498e6b543682d10ef6f75c9e0e1bdb42553d97030b43512a2f9ea222cc9e376b4a75a6a6

  • SSDEEP

    768:ePyFZFASe0Ep0EpHZplRpqpd6rqxn4p6vghzwYu7vih9GueIh9j2IoHAjU+Eh6Ij:e6q10k0EFjed6rqJ+6vghzwYu7vih9G3

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\a513f92aa2a10462508203646892b917be8673033d778a98ea3d63dcf793cb31.exe
    "C:\Users\Admin\AppData\Local\Temp\a513f92aa2a10462508203646892b917be8673033d778a98ea3d63dcf793cb31.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2260
    • 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:3644

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Windows\microsofthelp.exe

          Filesize

          45KB

          MD5

          aefecbdc540c7e0bf5dcead2ea8fedca

          SHA1

          0a26e0b719c26ae876825e51321182a24806cf71

          SHA256

          84bc10b95862e4629328431b24bab4afc88d408d61ed296f03045074eb1a33e6

          SHA512

          9c7c77004a0f32173b00934ed2ecd9ef25a304c02030e7855bdb232cfc17bc502b4370939f9e690c3d41f67727f91be9b1915bb7c42f94456dd7fa1118284cac

        • memory/2260-0-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB

        • memory/2260-5-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB

        • memory/3644-7-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB