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
    29-11-2024 22:24

General

  • Target

    65e0381e73c589975c312ee7e074be665bbc74889a312c3d836ef25fe9d2e22cN.exe

  • Size

    859KB

  • MD5

    c21df562eb430947b2a0166c9afaad30

  • SHA1

    de729d5ead88d68746f5f4db13cc5b0ecf2a2c1a

  • SHA256

    65e0381e73c589975c312ee7e074be665bbc74889a312c3d836ef25fe9d2e22c

  • SHA512

    3bfc18ef92aafb3a71c810b8eea5f82b819e44cd03dafcdb33753280fec91a7111ef18c1e31639664c169401fad8d58847207a3142c44500a0dfadd6d9da0a5a

  • SSDEEP

    24576:1wLVlTB7kXa65mKwMxEheqt+0ODsGk6w0Q:uTuaAhwBhBtuDsGFwj

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 2 IoCs
  • Loads dropped DLL 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.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • 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.

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\65e0381e73c589975c312ee7e074be665bbc74889a312c3d836ef25fe9d2e22cN.exe
    "C:\Users\Admin\AppData\Local\Temp\65e0381e73c589975c312ee7e074be665bbc74889a312c3d836ef25fe9d2e22cN.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:1764
    • C:\Users\Admin\AppData\Local\Temp\3582-490\65e0381e73c589975c312ee7e074be665bbc74889a312c3d836ef25fe9d2e22cN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\65e0381e73c589975c312ee7e074be665bbc74889a312c3d836ef25fe9d2e22cN.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3556
      • C:\Windows\TEMP\{C05B295A-9391-4ECA-8A42-FAE03FB2D25E}\.cr\65e0381e73c589975c312ee7e074be665bbc74889a312c3d836ef25fe9d2e22cN.exe
        "C:\Windows\TEMP\{C05B295A-9391-4ECA-8A42-FAE03FB2D25E}\.cr\65e0381e73c589975c312ee7e074be665bbc74889a312c3d836ef25fe9d2e22cN.exe" -burn.clean.room="C:\Users\Admin\AppData\Local\Temp\3582-490\65e0381e73c589975c312ee7e074be665bbc74889a312c3d836ef25fe9d2e22cN.exe" -burn.filehandle.attached=624 -burn.filehandle.self=648
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4236

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\65e0381e73c589975c312ee7e074be665bbc74889a312c3d836ef25fe9d2e22cN.exe

    Filesize

    818KB

    MD5

    c29a9004b91a0ce2eb52dd77445cef77

    SHA1

    32ebc3b3031a4e4bf7261e6d545ab6f3dd21d8d4

    SHA256

    576160e5b643b0e3c2d908f0d10021dfeddb973540a61bc29ec05947eef664f2

    SHA512

    264a9dd10edcf9f7872ae287529241f262bc8218378ec11ed4899567f2564143c1b419ccef50354521dda67f69743371cd5fa1a86698d10d9185cc3fc5d84d3b

  • C:\Windows\Temp\{CE0FDC4A-483F-40BA-A4D8-D9A51C2C9BC3}\.ba\logo.png

    Filesize

    3KB

    MD5

    d34983aa7c8a8fd6741dc5caa2e8e127

    SHA1

    c03de4ee882eec2723ae1ca7299d5ce163edaa24

    SHA256

    b123cba8e6a2eb403c2068b59a5e5ceded3bb726d66eb846c4971317637cc120

    SHA512

    8c561b8e6a5a8c29e685e5faa3fe28c877e4a0e81bc519daf06a9fbf8b8dc0445c1c2f01a26b0ea3fa0c21db255229f5adf38beed4fd1a4be7d2af258a45adf8

  • C:\Windows\Temp\{CE0FDC4A-483F-40BA-A4D8-D9A51C2C9BC3}\.ba\wixstdba.dll

    Filesize

    309KB

    MD5

    16c693cb3ac18e30c794a499551f2571

    SHA1

    c9986b5be0ccf4c49bfbe3ac4b7e11bf9faf077f

    SHA256

    b2e68ee3a322a94b37a3a791c42d14c53d1254f176deb500bd4c95440510518f

    SHA512

    327104d2dd8405d978d9662e001772f2d182120101338338fa2124a337a872336bed2cc420b997292ef60376fd28dc4ed7f6c8c9803d0a32cfc8937001f2b312

  • memory/1764-114-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1764-124-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1764-126-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB