Analysis

  • max time kernel
    94s
  • max time network
    122s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250211-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250211-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-02-2025 13:49

General

  • Target

    ffa4cb846b0f2ee92ca5773fef68e77b7ed00edbb6ff62732d963e13ed38bf89N.exe

  • Size

    363KB

  • MD5

    7b02d471d211417a8e268895a0d737a0

  • SHA1

    5473cba694acb1b516c84858ecf61023f25301e9

  • SHA256

    ffa4cb846b0f2ee92ca5773fef68e77b7ed00edbb6ff62732d963e13ed38bf89

  • SHA512

    1b3f7ecd8b622a48eb6f295cd9421e08409353ef7354d915baa5537070edda6988693ec620a49550998d6c799103de2d866b08e7bb9f8301465857fc10fb0317

  • SSDEEP

    6144:k9jeFHDi+DZUdHDgKhXogpcq7oV/7U0ZWwnJZvjib:8eFHDHCDXogcq7oiSZnPk

Malware Config

Signatures

  • Detect Neshta payload 4 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\ffa4cb846b0f2ee92ca5773fef68e77b7ed00edbb6ff62732d963e13ed38bf89N.exe
    "C:\Users\Admin\AppData\Local\Temp\ffa4cb846b0f2ee92ca5773fef68e77b7ed00edbb6ff62732d963e13ed38bf89N.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:4336
    • C:\Users\Admin\AppData\Local\Temp\3582-490\ffa4cb846b0f2ee92ca5773fef68e77b7ed00edbb6ff62732d963e13ed38bf89N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\ffa4cb846b0f2ee92ca5773fef68e77b7ed00edbb6ff62732d963e13ed38bf89N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2260
  • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
    "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIwIiBpbnN0YWxsZGF0ZXRpbWU9IjE3MzkyODMzNzEiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4Mzc1NDE5Mjc1MzAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1NTM0MDg1MjI3Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
    1⤵
    • System Location Discovery: System Language Discovery
    • System Network Configuration Discovery: Internet Connection Discovery
    PID:4368

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\ffa4cb846b0f2ee92ca5773fef68e77b7ed00edbb6ff62732d963e13ed38bf89N.exe

    Filesize

    323KB

    MD5

    b831bd2b026febce5e335ef0f728825b

    SHA1

    002048628bb39a2128f9f93871c09068240cadf6

    SHA256

    7dd988de3f406f0c2d45a4bd394184301a03ecddbb6b4138cca3084bac41ee67

    SHA512

    2bf07199b8bbb9b2d4fdceef49faab5a115a89a03f8b8cdef49f206abd487b127a76a936dfe6c58aa6af97097e6dbbdd9ded0bd114e62309fae9884f8c293dcf

  • memory/4336-124-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4336-125-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4336-127-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB