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, 05:12

General

  • Target

    c9b9b5d5eb72f81245ca5b8b0f8d5a876bbc260b82ad813d2084d975761de146.exe

  • Size

    49KB

  • MD5

    20e271c8b0605aeee97947f06300119c

  • SHA1

    5ec396b926646051684a097e07c69def0e6adaa5

  • SHA256

    c9b9b5d5eb72f81245ca5b8b0f8d5a876bbc260b82ad813d2084d975761de146

  • SHA512

    fd0acf03d3548888231b4a7be59c7dbe9f3e15b423fe0e8e338afb2c7e27ae19abc6bf23f1f6aabfb576e6e23dd0bd343d53f6d1622d2f0e6cd6c3f4bcfb6219

  • SSDEEP

    1536:e6q10k0EFjed6rqJ+6vghzwYu7vih9GueIh9j2IoHAjUvJQ/johleHhvGhZchUXn:E1oEFlt6vghzwYu7vih9GueIh9j2IoH9

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\c9b9b5d5eb72f81245ca5b8b0f8d5a876bbc260b82ad813d2084d975761de146.exe
    "C:\Users\Admin\AppData\Local\Temp\c9b9b5d5eb72f81245ca5b8b0f8d5a876bbc260b82ad813d2084d975761de146.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2728
    • 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:796

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Windows\microsofthelp.exe

          Filesize

          49KB

          MD5

          0379da994f862a512efb7ec47c2ec3d2

          SHA1

          d727f6108266066bbe904fd2a24d56a303032e63

          SHA256

          38de23b5d2bef66e114002d5a3eede6f8c6155b4871ce11f5d9f5787aa251b99

          SHA512

          01060d9c140316b9601eb10cd31d05ecb7dfaa91f84687c10ba6861382bc3c19ad4a7ce35318bef6f6ea96453c8b6407729906ef80fb888f166911249a0c9d75

        • memory/796-7-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB

        • memory/2728-0-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB

        • memory/2728-6-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB