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Overview

overview

7

Static

static

3

b8e48a8531...17.exe

windows7-x64

7

b8e48a8531...17.exe

windows10-2004-x64

7

Analysis

  • max time kernel
    141s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/02/2024, 05:32

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General

  • Target

    b8e48a8531a0de79f8902330ba65787579a6fb347ccb5dca879af6acae4a3e17.exe

  • Size

    196KB

  • MD5

    3fb6ac2904cd31e1a3e57fe0d6db6cbe

  • SHA1

    8f08f0de50b30d395e3ea7205f8744ddfcb34715

  • SHA256

    b8e48a8531a0de79f8902330ba65787579a6fb347ccb5dca879af6acae4a3e17

  • SHA512

    7171658197a1976cd601b5d337718e736285713cf1a773458446ed05817b18bc5c59af3beb68fc0c0384129a7b1970ee42f1b5e33270de63c04e8996a2104154

  • SSDEEP

    6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCO1:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXg

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b8e48a8531a0de79f8902330ba65787579a6fb347ccb5dca879af6acae4a3e17.exe
    "C:\Users\Admin\AppData\Local\Temp\b8e48a8531a0de79f8902330ba65787579a6fb347ccb5dca879af6acae4a3e17.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3864
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\B8E48A~1.EXE > nul
      2⤵
        PID:2624
    • C:\Windows\Debug\nkmhost.exe
      C:\Windows\Debug\nkmhost.exe
      1⤵
      • Executes dropped EXE
      • Checks processor information in registry
      PID:4500

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Windows\debug\nkmhost.exe
      Filesize

      196KB

      MD5

      2846a970a8103c94dc73d381efe7dec4

      SHA1

      462276324ab387082c28791eabd32bb664de43f6

      SHA256

      186f50812207710049eb6c3b8efd79c5fe796bf2c92614194feedfdbba69b4c5

      SHA512

      b415cc8edd2fd084c758c6fc1b27922309bafcd842529fa62a3f0669be91492755c30f4828d6ee1fd631c545d29ba048ee189e60a5c358ac9f90b5ed013eb537

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