Analysis

  • max time kernel
    149s
  • max time network
    129s
  • 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, 21:02

General

  • Target

    287a09036e3e773ae9fe9721a1650be793c34b4804ee4636c05c1795e890a6a7.exe

  • Size

    42KB

  • MD5

    cbaf0531545da076b6194e7fc4e1000a

  • SHA1

    cfa06c0c3b3e617b268cd65fcb57b58dabbec6a4

  • SHA256

    287a09036e3e773ae9fe9721a1650be793c34b4804ee4636c05c1795e890a6a7

  • SHA512

    bd8a3ac4ac586393a680bc9065b1c957b5853b3c9587c0d7600e8f4c0e2f4721414f5d57fa55023fa7f201ceede6e318dfe57387e5526b1b8dd16fc6ff6b030a

  • SSDEEP

    768:ePyFZFASe0Ep0EpHZplRpqpd6rqxn4p6vghzwYu7vih9GueIh9j2IoHAjU+Eh6Iv:e6q10k0EFjed6rqJ+6vghzwYu7vih9GT

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\287a09036e3e773ae9fe9721a1650be793c34b4804ee4636c05c1795e890a6a7.exe
    "C:\Users\Admin\AppData\Local\Temp\287a09036e3e773ae9fe9721a1650be793c34b4804ee4636c05c1795e890a6a7.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:960
    • 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:1928

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Windows\microsofthelp.exe

          Filesize

          42KB

          MD5

          a5e76af347a273353795f307ad6c37b4

          SHA1

          dfea46bb2cac2a5ef2c887d71aa43ecb15b6cb55

          SHA256

          9148b042fe1796ac82eb639e5aee5c730a366084a60f54ca6fcc7e46abfab4f8

          SHA512

          7f5c13656bf41ffe4ee9d98684b7f7c0f2585f0ccbcb37ffd22e452a8c07ad2e5573ec82867c7b18f5c69ca6310db4c0381d00739c73f1edb798bb0b29a21a85

        • memory/960-0-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB

        • memory/960-6-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB

        • memory/1928-7-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB

        • memory/1928-8-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB