Overview

overview

8

Static

static

3

1f84ec8462...59.dll

windows7-x64

8

1f84ec8462...59.dll

windows10-2004-x64

8

Analysis

  • max time kernel
    159s
  • max time network
    171s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/12/2023, 23:10

Sharing

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General

  • Target

    1f84ec84621283bf01c6f15ad68f6459.dll

  • Size

    424KB

  • MD5

    1f84ec84621283bf01c6f15ad68f6459

  • SHA1

    0e71b2a2e088e864593b8b480094ee6fde18fec8

  • SHA256

    61d6e04a4c8036d541f73c610fe5bc5a5ed88796ebe0d370365a726bb3738bc7

  • SHA512

    b7ae088bca2202480dd7f36836b13e8cb1c1ff5d21c1a71a8d75e62c1a234d837fce2e35dfa00991a79c1051e68c1969f39f77927ce9d49162cc24e69f6b574b

  • SSDEEP

    12288:b4K95B0cRt95RLHpr59Ct6s9eG4Rh8R1uxZbhP7:kk5icRtTJHp60jhii

Score
8/10
persistence

Malware Config

Signatures

  • Blocklisted process makes network request 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\1f84ec84621283bf01c6f15ad68f6459.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2684
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\1f84ec84621283bf01c6f15ad68f6459.dll,#1
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:3908
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\1f84ec84621283bf01c6f15ad68f6459.dll",watch
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:2016
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\1f84ec84621283bf01c6f15ad68f6459.dll",xserve
        3⤵
        • Blocklisted process makes network request
        PID:2040

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • memory/2016-9-0x0000000002170000-0x0000000002270000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2016-19-0x0000000074AC0000-0x0000000074B7E000-memory.dmp

          Filesize

          760KB

          Download

        • memory/2016-23-0x0000000002170000-0x0000000002270000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2040-14-0x0000000001380000-0x0000000001480000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2040-20-0x0000000074AC0000-0x0000000074B7E000-memory.dmp

          Filesize

          760KB

          Download

        • memory/2040-22-0x0000000074AC0000-0x0000000074B7E000-memory.dmp

          Filesize

          760KB

          Download

        • memory/2040-24-0x0000000001380000-0x0000000001480000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/3908-0-0x0000000002D00000-0x0000000002E00000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/3908-1-0x0000000074AC0000-0x0000000074B7E000-memory.dmp

          Filesize

          760KB

          Download

        • memory/3908-5-0x0000000074AC0000-0x0000000074B7E000-memory.dmp

          Filesize

          760KB

          Download