Analysis

  • max time kernel
    140s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-10-2024 08:28

General

  • Target

    396c4dc77d4f874f14b4bc566af446b12d33a1af8ad5f15a3c853600d20e3b1bN.exe

  • Size

    5.6MB

  • MD5

    38e5e278d59b42a787a7493fd17c0980

  • SHA1

    19bf9ac084b118d34953ff1d62a71fbe0d7f7fd7

  • SHA256

    396c4dc77d4f874f14b4bc566af446b12d33a1af8ad5f15a3c853600d20e3b1b

  • SHA512

    71b8183d6a4dcfcab89f40892912711a9f4fb6cd7a49683c743792eb0ac3c12f1fd0cf4f1138ebfd97176c603df516d0f0f3e136ca86288c17dbe766169c2ea9

  • SSDEEP

    98304:xVHFXSCmqsSgfkVsNuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuTuuuuuuuuuuuu+:xVHFXSCmqsMW1WbvEUJ9Fwu3jVge5dmH

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.

  • 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 2 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\396c4dc77d4f874f14b4bc566af446b12d33a1af8ad5f15a3c853600d20e3b1bN.exe
    "C:\Users\Admin\AppData\Local\Temp\396c4dc77d4f874f14b4bc566af446b12d33a1af8ad5f15a3c853600d20e3b1bN.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:3912
    • C:\Users\Admin\AppData\Local\Temp\3582-490\396c4dc77d4f874f14b4bc566af446b12d33a1af8ad5f15a3c853600d20e3b1bN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\396c4dc77d4f874f14b4bc566af446b12d33a1af8ad5f15a3c853600d20e3b1bN.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      PID:956

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\396c4dc77d4f874f14b4bc566af446b12d33a1af8ad5f15a3c853600d20e3b1bN.exe

    Filesize

    5.6MB

    MD5

    62fc253edc3c881190912d2b35d29e74

    SHA1

    1f41fa8f592554b0c0896bb9ed806831ce334abc

    SHA256

    40c536879a7983bb957a3d199586195df6db96618b9ef60916e09f96f7907032

    SHA512

    eae3981b667de4318b7eb4c33f4bdb2cd096c5378a83c69ff6f93edc3ac4741f444f5a344c9703f509bdb995d9f59ec8f8f91433851a89c1bf06cece84f67369

  • memory/3912-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3912-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3912-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB