Analysis

  • max time kernel
    149s
  • max time network
    139s
  • 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, 03:16

General

  • Target

    a4da03fd32a94035caf5b4b2a3f5b122f318f6d8636b3e902832be1fc773ffb9.exe

  • Size

    43KB

  • MD5

    7b8080d40933a00023b68eab02b034fb

  • SHA1

    6f92dfb64d0b222bc6834b7860682429ab73182d

  • SHA256

    a4da03fd32a94035caf5b4b2a3f5b122f318f6d8636b3e902832be1fc773ffb9

  • SHA512

    319b21f27c4e799ad7972bc0b7404eb3fe6bb4fa4ea3eb64df4652eb472c4f47b1a2911115bb21e516d34c9e4e7686ba765ead57c353f663ffc79b4a5961a4fd

  • SSDEEP

    768:ePyFZFASe0Ep0EpHZplRpqpd6rqxn4p6vghzwYu7vih9GueIh9j2IoHAjU+Eh6IY:e6q10k0EFjed6rqJ+6vghzwYu7vih9GE

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\a4da03fd32a94035caf5b4b2a3f5b122f318f6d8636b3e902832be1fc773ffb9.exe
    "C:\Users\Admin\AppData\Local\Temp\a4da03fd32a94035caf5b4b2a3f5b122f318f6d8636b3e902832be1fc773ffb9.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3580
    • 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:2876

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Windows\microsofthelp.exe

          Filesize

          44KB

          MD5

          d4a054f69ebc443912767bac39b14c24

          SHA1

          ff1bf142bcb30e272c50d5b4652b54bda85d8f12

          SHA256

          5c5cad728b7448b7ebacf9822bd986228cee43d9aa8a969a38917aebe99155b5

          SHA512

          7facf9f5a43d0fffde82dd7ce0a4e1f2fcfe49b9bffdba29ea35f8f6e7ff05f4dd0b71e3923f95813afa8e9cb007ef6df7b703059cf8587d08ec917d0ec32f9b

        • memory/2876-7-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB

        • memory/2876-8-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB

        • memory/3580-0-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB

        • memory/3580-6-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB