Analysis

  • max time kernel
    104s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250207-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250207-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-02-2025 06:47

General

  • Target

    2025-02-09_04ec01d0ce041c83beed42e2e9235eb7_neshta_wannacry.exe

  • Size

    5.1MB

  • MD5

    04ec01d0ce041c83beed42e2e9235eb7

  • SHA1

    cf21ebbf315b6aafbe51a9e6aa5b097185c4df3e

  • SHA256

    e8a7026b7feffa9e3e55b49e448bb597421540b9e7c1680315b129f9429bc0a9

  • SHA512

    1234d3be5b72e663c2363549067b41b24f589ab151c085427efcd83325cce50b5576d5af17a505cd9ef3708d83c0d5a1a77d8652188ad0ee1174df94b43854cf

  • SSDEEP

    49152:nnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9O:nDqPoBhz1aRxcSUDk36SAEdhvxWa9O

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.

  • 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 2 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-02-09_04ec01d0ce041c83beed42e2e9235eb7_neshta_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-02-09_04ec01d0ce041c83beed42e2e9235eb7_neshta_wannacry.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
    PID:2264
  • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
    "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU4MTUiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODE1MzQzMTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI0OTk4MDExNzg5Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
    1⤵
    • System Location Discovery: System Language Discovery
    • System Network Configuration Discovery: Internet Connection Discovery
    PID:4908

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\2025-02-09_04ec01d0ce041c83beed42e2e9235eb7_neshta_wannacry.exe

    Filesize

    5.0MB

    MD5

    9fcba22f6e05d31dd256a091d8223b51

    SHA1

    46d2c20e8c57670e51b21b299b99ba6eb2dbb44c

    SHA256

    9e81aa89f07885b95eb660a78e2e09273c5c65088827934e047c26b9c1c51290

    SHA512

    85273ceebf7ef9ec048b4acc0ccde5811238580561f576010405cf5fba1b25d4b09ae1095cb32bcc7b3178345547a5f1d611130df3d1791e28313c15b5e6e9b3

  • memory/2264-122-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2264-123-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2264-124-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2264-126-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB