Analysis

  • max time kernel
    149s
  • max time network
    131s
  • 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, 05:49

General

  • Target

    d3dd7d37aa32e6c012698d3be8fe2dc3fe9f47bf35df9e1ae000f5d50ca7ea7d.exe

  • Size

    42KB

  • MD5

    90b5ffa98a6a8c3ac03446f850e1da00

  • SHA1

    05320a08d013dfe6a813812dc7707a33f0029a1d

  • SHA256

    d3dd7d37aa32e6c012698d3be8fe2dc3fe9f47bf35df9e1ae000f5d50ca7ea7d

  • SHA512

    be02ec8ceb97f0e9e731fec9f7b8b2578b5c78a7c083dfdc11507ab41368f67847c1398a99049f89d9202d1442f9220025c74efc1ae6cedabc229559ccb21939

  • SSDEEP

    768:ePyFZFASe0Ep0EpHZplRpqpd6rqxn4p6vghzwYu7vih9GueIh9j2IoHAjU+Eh6IZ:e6q10k0EFjed6rqJ+6vghzwYu7vih9G1

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\d3dd7d37aa32e6c012698d3be8fe2dc3fe9f47bf35df9e1ae000f5d50ca7ea7d.exe
    "C:\Users\Admin\AppData\Local\Temp\d3dd7d37aa32e6c012698d3be8fe2dc3fe9f47bf35df9e1ae000f5d50ca7ea7d.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3508
    • 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:1496

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Windows\microsofthelp.exe

          Filesize

          42KB

          MD5

          d9edeb929b252b187faa8d7209975851

          SHA1

          b8f3c23d9c464e08621c4f44189cdae8816d929a

          SHA256

          a7363079e4abfa6e9daeb83254e7225826e89f800cb5af24fb4d6e569b265223

          SHA512

          4af0fd97c337a479815cf04f1f3e3839cd1d3fac6488f3178ea0789e01937428af5fbb0b58c2e9805b6b876ab801822fa0d82ba3bfd3aa375e10ed494206bc4b

        • memory/1496-6-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB

        • memory/3508-0-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB

        • memory/3508-4-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB