Analysis

  • max time kernel
    135s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250207-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250207-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/02/2025, 20:39

General

  • Target

    1e4b4c9f18673127f057fe0bcf876ea8e6245806e319910be3d1df5bcf3076e5.exe

  • Size

    94KB

  • MD5

    da11c2ff76b336ea6f29304e90c005ce

  • SHA1

    711f78173c1b588e1e910419c4620c71563f0755

  • SHA256

    1e4b4c9f18673127f057fe0bcf876ea8e6245806e319910be3d1df5bcf3076e5

  • SHA512

    6759311253074d7edd4ea926964a7e516fbd6ce03b33e31008abb4f44e32b70da9f263bdcf3f6179e527eca131efc076c353498572e2eb60b2716af3f18373d1

  • SSDEEP

    1536:JxqjQ+P04wsmJCCukeiyyNxuAxgyEru2HPL4o:sr85CCuLsumgq2HUo

Malware Config

Signatures

  • Detect Neshta payload 5 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Neshta family
  • Downloads MZ/PE file 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1e4b4c9f18673127f057fe0bcf876ea8e6245806e319910be3d1df5bcf3076e5.exe
    "C:\Users\Admin\AppData\Local\Temp\1e4b4c9f18673127f057fe0bcf876ea8e6245806e319910be3d1df5bcf3076e5.exe"
    1⤵
    • Checks computer location settings
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2092
    • C:\Users\Admin\AppData\Local\Temp\3582-490\1e4b4c9f18673127f057fe0bcf876ea8e6245806e319910be3d1df5bcf3076e5.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\1e4b4c9f18673127f057fe0bcf876ea8e6245806e319910be3d1df5bcf3076e5.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4140
  • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
    "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDY0MzMiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODc1OTU2NTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MTM0NDcxODExIi8-PC9hcHA-PC9yZXF1ZXN0Pg
    1⤵
    • System Location Discovery: System Language Discovery
    • System Network Configuration Discovery: Internet Connection Discovery
    PID:3416

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE

    Filesize

    86KB

    MD5

    3b73078a714bf61d1c19ebc3afc0e454

    SHA1

    9abeabd74613a2f533e2244c9ee6f967188e4e7e

    SHA256

    ded54d1fcca07b6bff2bc3b9a1131eac29ff1f836e5d7a7c5c325ec5abe96e29

    SHA512

    75959d4e8a7649c3268b551a2a378e6d27c0bfb03d2422ebeeb67b0a3f78c079473214057518930f2d72773ce79b106fd2d78405e8e3d8883459dcbb49c163c4

  • C:\Users\Admin\AppData\Local\Temp\3582-490\1e4b4c9f18673127f057fe0bcf876ea8e6245806e319910be3d1df5bcf3076e5.exe

    Filesize

    53KB

    MD5

    5ac109a074ea4a473e52a383ff2498c3

    SHA1

    80037330d1a03cbc5c0e7d2c21aa2cea96915168

    SHA256

    e84a4625f9433af1990b96eea5edc427386ad2c3894562bf14ac7486db3d5b97

    SHA512

    b8528d49e4fc37479b600d5e9fa4fb7d2788c1c7c70d56a3226700dd603dbe99080449350763590727aefe1fa727b688e6054ca66499dbe171bcaa0bd3b8ecc8

  • memory/2092-124-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2092-125-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2092-126-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2092-128-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB