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Analysis

  • max time kernel
    98s
  • max time network
    130s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/10/2024, 04:21

General

  • Target

    uninstall.exe

  • Size

    285KB

  • MD5

    b60e672d36019eb707e475b93e3093ba

  • SHA1

    d0e21f8c40fe81718e1cb91cc3853dfb68dd8690

  • SHA256

    31ad0ddae066932c113880ae069504bc6303cacd69f01f191e72e4c1d247eff8

  • SHA512

    ae2aef1c58a95c851d17100357b19fe05da48f61b61f20964be75cb98621867caf34446767311c30f919e6203fde5a02b488d5de0b45e2a31b714f5fe17eb13a

  • SSDEEP

    6144:Ee34bonpeZH+zpyuuz6GZkDOJ/7OafSH5KmrWym09x1W:60eZHkwuPikQ7lKH5p5H9x1W

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:3984
    • 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:5088

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\nsfB95E.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

    b60e672d36019eb707e475b93e3093ba

    SHA1

    d0e21f8c40fe81718e1cb91cc3853dfb68dd8690

    SHA256

    31ad0ddae066932c113880ae069504bc6303cacd69f01f191e72e4c1d247eff8

    SHA512

    ae2aef1c58a95c851d17100357b19fe05da48f61b61f20964be75cb98621867caf34446767311c30f919e6203fde5a02b488d5de0b45e2a31b714f5fe17eb13a