Analysis

  • max time kernel
    94s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-12-2024 04:35

General

  • Target

    210463394ae90f2f5404561a941510cc98387a1aed6148e18407c32b8bbbf7e3N.exe

  • Size

    212KB

  • MD5

    4a92392217200a282c6b93bc8cd101a0

  • SHA1

    6d7954e7c3c24516baf3555a1ed34b8e676cc6ef

  • SHA256

    210463394ae90f2f5404561a941510cc98387a1aed6148e18407c32b8bbbf7e3

  • SHA512

    6822b702d9ca6e13de119faaa7fd5133bab3f0a7bdaba93a72252766b992e407fdf4f6eebf6aeadeb40d5acbbc127d7e30483ee0b561f908df1d5e2e0ec082d7

  • SSDEEP

    3072:sr85Cf9sqhqY/51jtvt3Bl3Mq/mAyneOReznPfXABIm7qoHgJ0VQBb:k9f9syFxBvOR8PfwpLHg68

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
  • 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.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\210463394ae90f2f5404561a941510cc98387a1aed6148e18407c32b8bbbf7e3N.exe
    "C:\Users\Admin\AppData\Local\Temp\210463394ae90f2f5404561a941510cc98387a1aed6148e18407c32b8bbbf7e3N.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:3416
    • C:\Users\Admin\AppData\Local\Temp\3582-490\210463394ae90f2f5404561a941510cc98387a1aed6148e18407c32b8bbbf7e3N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\210463394ae90f2f5404561a941510cc98387a1aed6148e18407c32b8bbbf7e3N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:712

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\210463394ae90f2f5404561a941510cc98387a1aed6148e18407c32b8bbbf7e3N.exe

    Filesize

    171KB

    MD5

    9ed3ec390cfa27c0fbd461b1f6405e8b

    SHA1

    4786ebcb3373359ddd34d240332afe6e0b8121cd

    SHA256

    0b8cd880ddd1301bcb4e7dc01448c258a880e145fe3b1b035a9db38d6d9659c0

    SHA512

    545ca4227382a39bdcd75df9d31a24ffa8ad5f0bdf70b431abfb7d096d049ca89d0ab31d96337b93ddc9ef0bafe3ef56d1edb638fd56c5ea2c136e89dd6b6785

  • C:\Users\Admin\AppData\Local\Temp\3582-490\Log\MaxUpdaterU.log

    Filesize

    1KB

    MD5

    6f3077686dbd785c0269409faa66eff8

    SHA1

    c515d0a502a444fc04ef743399a60870f795d3e0

    SHA256

    0439a615d342692f6f4c1716e093ae02aab464a605b09f72ee87dc121ecdb978

    SHA512

    c28ef398c883a592bd6af5638278fbd00f1502a44b96b9944312a326555da6bd43fdea0873a32392771947ff7d749e22c08c03dd68548d6e43001c1542f3b5f6

  • memory/3416-108-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3416-109-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3416-111-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB