Analysis

  • max time kernel
    93s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-10-2024 21:34

General

  • Target

    uninstall.exe

  • Size

    285KB

  • MD5

    ce0c9927fd75ded7112843370bd6e87b

  • SHA1

    7b60db758c8722bb9a599a7726bbf1c8d9ac0651

  • SHA256

    2f63bcfaee8fd6f0da5d6ddd43911a861f1f32b63ca867769de6676ab58138de

  • SHA512

    81c5180c718478bb657c27e105ed55dbc036ae1f7993a8b90567642f3b95e7b449b5f14316e1ee34f5cd65e777e94e4ca5567423b107f85207792116cfafe79a

  • SSDEEP

    6144:Ee34MxrpeZH+zpyuuz6GZkDOJ/7OafSH5KmrWym09x1e:p3eZHkwuPikQ7lKH5p5H9x1e

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 3 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).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • 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⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3928
    • 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
      • System Location Discovery: System Language Discovery
      PID:3960

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\nsd8D7C.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

    ce0c9927fd75ded7112843370bd6e87b

    SHA1

    7b60db758c8722bb9a599a7726bbf1c8d9ac0651

    SHA256

    2f63bcfaee8fd6f0da5d6ddd43911a861f1f32b63ca867769de6676ab58138de

    SHA512

    81c5180c718478bb657c27e105ed55dbc036ae1f7993a8b90567642f3b95e7b449b5f14316e1ee34f5cd65e777e94e4ca5567423b107f85207792116cfafe79a