Analysis

  • max time kernel
    142s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-02-2024 12:20

General

  • Target

    $0/uninstall.exe

  • Size

    78KB

  • MD5

    49308a7a6a85f0129a98a288cdab2385

  • SHA1

    33a1b7ca4bc7a27647519cdf015ac0a22782f527

  • SHA256

    000519cce0a165f4a94ab47dc7b666c4df08af1a5e3430987810193c270dc909

  • SHA512

    8ba592a1171f80e1bef7fb398b6c2b91402e6f76ad8942458fcefbff9919249747348bd75fba8d42180ff460469780ea88aa5966cd50d0dbf979a98b44fd1ef8

  • SSDEEP

    1536:PEkjY1zy214Qay0DGkJ7qAELVigJNcpw/1q792sX7Ia12/Db:8kjAJ4dDGkJ+AI0fo1qRka0/v

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • NSIS installer 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\$0\uninstall.exe
    "C:\Users\Admin\AppData\Local\Temp\$0\uninstall.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4892
    • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
      "C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\$0\
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:1440

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\nsq62E1.tmp\InstallOptions.dll

    Filesize

    13KB

    MD5

    d765c492c21689e3d9d61634371fd861

    SHA1

    ac200933671ae52c9d5544d0e2e8e9144d286c83

    SHA256

    551e6042dd494ea01549555ffc194ab9729da09058ec714eb368dd06642c9bbc

    SHA512

    9919a9e848c8f1e26c75d0d29207571e4b86a4140bd554743d2c1f8bd7f386fe4919345b163d89a5d907fb165e435ba0ac5f6b1101713636141f156a420e2e0f

  • C:\Users\Admin\AppData\Local\Temp\nsq62E1.tmp\System.dll

    Filesize

    10KB

    MD5

    fe24766ba314f620d57d0cf7339103c0

    SHA1

    8641545f03f03ff07485d6ec4d7b41cbb898c269

    SHA256

    802ef71440f662f456bed6283a5ff78066af016897fe6bfd29cac6edc2967bbd

    SHA512

    60d36959895cebf29c4e7713e6d414980139c7aa4ed1c8c96fefb672c1263af0ce909fb409534355895649c0e8056635112efb0da2ba05694446aec2ca77e2e3

  • C:\Users\Admin\AppData\Local\Temp\nsq62E1.tmp\ioSpecial.ini

    Filesize

    703B

    MD5

    62dec95bb0c6716243d642caf93c6075

    SHA1

    86599e788d251aebd89cbcfc31711bb59ec5d0d8

    SHA256

    875c7eab30ac4438090d8a2ab014ae317929f95193f2b5fda0b2cce4b1d92412

    SHA512

    8dbfc6bd36796a98d8961e3ac428212f3f518d0e1ddb4bc4273f98c9642056c6519fc518a1df6b4909d180a673c3a0e6ef99344c79ec5d8e551d42716fe9e62b

  • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

    Filesize

    78KB

    MD5

    49308a7a6a85f0129a98a288cdab2385

    SHA1

    33a1b7ca4bc7a27647519cdf015ac0a22782f527

    SHA256

    000519cce0a165f4a94ab47dc7b666c4df08af1a5e3430987810193c270dc909

    SHA512

    8ba592a1171f80e1bef7fb398b6c2b91402e6f76ad8942458fcefbff9919249747348bd75fba8d42180ff460469780ea88aa5966cd50d0dbf979a98b44fd1ef8