Analysis

  • max time kernel
    140s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/02/2024, 03:45

General

  • Target

    MainInstaller.exe

  • Size

    531KB

  • MD5

    9ce448dcd7cf13dd950725957361bdff

  • SHA1

    5831ff31825ea82d90a2989e0fc0a33b859d5f97

  • SHA256

    3dbc5aff076ef9c86a90ad30e963581f7cb22f8e212aa38db29d82cf45b73f80

  • SHA512

    b4a175da3677cd3380cb3789f281f2afb10aa00dc9592217062d66eb9b5e73805886b692975d7244cdd439d8d5bcd0eb5810533284ba4b13ff02a20b792bf74f

  • SSDEEP

    12288:z/8Ze69hm2S17Y/bv9VXXLVS+n28L6OdBCZrrf3xSEowuj6ZQM7gMWZQkN:zihc17YpVE+PGsB03xSEowuj6ZQM71WD

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • NSIS installer 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\MainInstaller.exe
    "C:\Users\Admin\AppData\Local\Temp\MainInstaller.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2612
    • C:\Users\Admin\AppData\Local\Temp\Setup.exe
      C:\Users\Admin\AppData\Local\Temp\Setup.exe /PID=0 /NOTIFY=0 /FFR=1 /FFP=1
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:3156

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Setup.exe

    Filesize

    505KB

    MD5

    5d8d0c08384ad73216d52a2eabc064f5

    SHA1

    0fa5c77fd6b6323b926c9648679e063d1bbc8bcc

    SHA256

    30522715240f4a05859099ac370dfb516097ab257402981c6a9ad31951f36cce

    SHA512

    42a3003019e39622082506c7ae50d8a27e2920fdfdf15eb9a8dbf7f1dbd49a02cd0390dabd74c136ed44e9d8ba270540ce9390f31aa84c2fc9fdfcc9e912dd57

  • C:\Users\Admin\AppData\Local\Temp\nsa93C5.tmp\InstallOptions.dll

    Filesize

    14KB

    MD5

    325b008aec81e5aaa57096f05d4212b5

    SHA1

    27a2d89747a20305b6518438eff5b9f57f7df5c3

    SHA256

    c9cd5c9609e70005926ae5171726a4142ffbcccc771d307efcd195dafc1e6b4b

    SHA512

    18362b3aee529a27e85cc087627ecf6e2d21196d725f499c4a185cb3a380999f43ff1833a8ebec3f5ba1d3a113ef83185770e663854121f2d8b885790115afdf

  • C:\Users\Admin\AppData\Local\Temp\nsa93C5.tmp\ioSpecial.ini

    Filesize

    694B

    MD5

    20b32d9d308f124892485cf87eeba6ad

    SHA1

    b3ed4e191584bef0025942ffcdbba4d1c3ff0186

    SHA256

    c03ec736f6b8fe49f6e0efac185807202ca831ebbfedddd125c38c1aa51f2bf0

    SHA512

    79ede3e9d435afd4a570d70a4471cdad5b1148a8229a86c9d90fdf8b98876c7138330beefab6461f3040d8942e714f274a088c1882556d08e41384b6bc99477d