Analysis

  • max time kernel
    149s
  • max time network
    141s
  • 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, 04:47

General

  • Target

    c2231d2f2409d68cff00fd4d94a135e6d93ed39d00fb301ae003781cf1f12f78.exe

  • Size

    48KB

  • MD5

    1d15f899d2976be3263a261149bece63

  • SHA1

    128ec42a8c7f2d6a962500418dadfafe458796c0

  • SHA256

    c2231d2f2409d68cff00fd4d94a135e6d93ed39d00fb301ae003781cf1f12f78

  • SHA512

    7c7be0034fccd36af7103aa460bd10d7bfd0cbde8267f7a93284c64040c7878a1b3b1bc20c5fe222fb8a1f04906534c1dff02720530844095631350421b955ab

  • SSDEEP

    1536:e6q10k0EFjed6rqJ+6vghzwYu7vih9GueIh9j2IoHAjUvJQ/johleHhvGhZchUXC:E1oEFlt6vghzwYu7vih9GueIh9j2IoHE

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\c2231d2f2409d68cff00fd4d94a135e6d93ed39d00fb301ae003781cf1f12f78.exe
    "C:\Users\Admin\AppData\Local\Temp\c2231d2f2409d68cff00fd4d94a135e6d93ed39d00fb301ae003781cf1f12f78.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:840
    • 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:2564

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Windows\microsofthelp.exe

          Filesize

          49KB

          MD5

          ff35d701f80bc242affe27cba2cb5880

          SHA1

          56a779e89adc2615219eaa1fd9d55ceddf40b559

          SHA256

          12557ccf87c1a282c76fbc1f21dbf1971cbdfc58c91d24f9fdb487f60f54b2e9

          SHA512

          58fbe599a4ecd333a7595e2b1daace6530301d37313a3d2e82823527baaa8ea95a397f9a17cb91d7123f45c70c7049f5e6ead0bbeeb92fb22a0bf9cbe25557e6

        • memory/840-0-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB

        • memory/840-5-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB

        • memory/2564-7-0x0000000000400000-0x000000000040E000-memory.dmp

          Filesize

          56KB