Analysis

  • max time kernel
    149s
  • max time network
    157s
  • 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, 02:17

General

  • Target

    917f931b9d3581d80fbe96c0febb8c66b6e2b8ba4dfcc472ff5a5f85e122f0cc.exe

  • Size

    70KB

  • MD5

    7bba0d023b440371b7df50d21ab7be61

  • SHA1

    47181a775fdb8dfe813fd34d63f85dc712353d7d

  • SHA256

    917f931b9d3581d80fbe96c0febb8c66b6e2b8ba4dfcc472ff5a5f85e122f0cc

  • SHA512

    fe1993d08d32e5ffddeddf1bf2d8cb68bb01c78bbd7155547c3d96b56b82c7210376bef1fc7043a6def0eed98604362d795410d65cc29e7465c2b4380807af86

  • SSDEEP

    1536:e6q10k0EFjed6rqJ+6vghzwYu7vih9GueIh9j2IoHAcBHUIF2kvEHrH1hyhuhrhz:E1oEFlt6vghzwYu7vih9GueIh9j2IoHu

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\917f931b9d3581d80fbe96c0febb8c66b6e2b8ba4dfcc472ff5a5f85e122f0cc.exe
    "C:\Users\Admin\AppData\Local\Temp\917f931b9d3581d80fbe96c0febb8c66b6e2b8ba4dfcc472ff5a5f85e122f0cc.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2300
    • 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:2044

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Windows\microsofthelp.exe

          Filesize

          70KB

          MD5

          0101df50ee03a7b1fef8c18e6e3ab0e6

          SHA1

          e0d6431566193b95adb323fd655dd8ba6717d287

          SHA256

          a92b21c0fb87ccb3bbe09df082f383705b90f16189b4448e502571b991201faa

          SHA512

          8887d5efe0fa38a718825a3a16f6bf2d59ca09609319a09cfffa528d929d1d9d156abe64ad27e6500433e9bed048b42d65241f9e1f88e49f49f7395ca9e707d4

        • memory/2044-7-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB

        • memory/2044-8-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB

        • memory/2300-0-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB

        • memory/2300-6-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB