Analysis

  • max time kernel
    100s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250207-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250207-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-02-2025 03:25

General

  • Target

    a27f1125872430327a923045b741d89504b6edc23ecb6b7251480589195f83fd.exe

  • Size

    2.5MB

  • MD5

    ed8f2ff4aee84215bd907ee9eb0b5dd1

  • SHA1

    8d769cab99d74dda3a29207b9b8666487e3c4146

  • SHA256

    a27f1125872430327a923045b741d89504b6edc23ecb6b7251480589195f83fd

  • SHA512

    840f3a37bfdef37ffbca02741df3df80cb58f5db30407322142bf28582a79621fb4e8b4cb6ab43d4283e8c0620213b23671f253cd509fb33fcac10b77796f46f

  • SSDEEP

    49152:MdrGT9oY0SAQ4+YI1Qb1oWGxblxZa0o857DC:MFGTv1QtGxHZabL

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\a27f1125872430327a923045b741d89504b6edc23ecb6b7251480589195f83fd.exe
    "C:\Users\Admin\AppData\Local\Temp\a27f1125872430327a923045b741d89504b6edc23ecb6b7251480589195f83fd.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:1908
    • C:\Users\Admin\AppData\Local\Temp\3582-490\a27f1125872430327a923045b741d89504b6edc23ecb6b7251480589195f83fd.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\a27f1125872430327a923045b741d89504b6edc23ecb6b7251480589195f83fd.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2812
  • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
    "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDY4MzAiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxOTE0Njg3NjAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI0ODg5NjExNTc2Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
    1⤵
    • System Location Discovery: System Language Discovery
    • System Network Configuration Discovery: Internet Connection Discovery
    PID:2656

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\a27f1125872430327a923045b741d89504b6edc23ecb6b7251480589195f83fd.exe

    Filesize

    2.5MB

    MD5

    994dc57b7faca46849ed882dac75e611

    SHA1

    1cd7af2f24595e503a40bced608c7436452c27dc

    SHA256

    b0b0f5594c1a375d15ce21f37f893ec846a2da8e417f01a5c824a5c315b73596

    SHA512

    95dab4d7c2fc91d1b88b93302e2a3fceeec7b1f48fdc4014b1f0f444a24b38f77252a6a82afdc7e611cc6fa2e5703d417dea8c3483316aed15af02a9c35303ac

  • memory/1908-126-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1908-127-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1908-129-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1908-131-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2812-11-0x0000000002780000-0x0000000002781000-memory.dmp

    Filesize

    4KB

  • memory/2812-125-0x0000000000400000-0x000000000067F000-memory.dmp

    Filesize

    2.5MB