Analysis

  • max time kernel
    143s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-02-2024 14:44

General

  • Target

    uninstall.exe

  • Size

    285KB

  • MD5

    8850b80b6f0f7551f846cdbb2894d0d5

  • SHA1

    fc8e35ef3abb5478a29c95b882a8e72a61f53467

  • SHA256

    6fc529d746b7a0269bc62918677700aad640b97a2681c7fa2512203ae09348b1

  • SHA512

    012603a6e534e9f5d48412369515329a45927e87973a23360bc50217f5620ac3265718f1e6a9e36d3409f67841f85714fe48ea62f3030d6892ab56cd2f7b66c4

  • SSDEEP

    6144:Ee34BKpeZH+zpyuuz6GZkDOJ/7OafSH5KmrWym09x1N:k6eZHkwuPikQ7lKH5p5H9x1N

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • 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\uninstall.exe
    "C:\Users\Admin\AppData\Local\Temp\uninstall.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1472
    • 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\
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:3340

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\nsg7D4F.tmp\aminsis.dll

    Filesize

    559KB

    MD5

    51ba1095f0ae45a2d444bea506cb9ad4

    SHA1

    038a5d53d055a6d440bd2c8864c2f51db206c5e5

    SHA256

    b620091bf9973e807e12155d2247a6d233b5d13ec38c426675470ab4b26f0539

    SHA512

    f5fe2dd0f19bcaab47540ceedbec71f7f7c5b833c8772c097594c458e5f1101fe9feb849812b65c175055f71dfb13f11c4ad94fef42cd66f247413e453de3361

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

    Filesize

    285KB

    MD5

    8850b80b6f0f7551f846cdbb2894d0d5

    SHA1

    fc8e35ef3abb5478a29c95b882a8e72a61f53467

    SHA256

    6fc529d746b7a0269bc62918677700aad640b97a2681c7fa2512203ae09348b1

    SHA512

    012603a6e534e9f5d48412369515329a45927e87973a23360bc50217f5620ac3265718f1e6a9e36d3409f67841f85714fe48ea62f3030d6892ab56cd2f7b66c4