Analysis

  • max time kernel
    118s
  • max time network
    97s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-12-2024 23:40

General

  • Target

    8b068ca0e882d27c8809fca03d76a3c92ea8b54f74437d792c1ff64e0d9af57aN.exe

  • Size

    108KB

  • MD5

    8101194d35be96ec676c505f4e4144f0

  • SHA1

    3bff62a487227fc420fe1b1bd0a266034e2ed7fe

  • SHA256

    8b068ca0e882d27c8809fca03d76a3c92ea8b54f74437d792c1ff64e0d9af57a

  • SHA512

    9263834731b986304bded1107ac17baa4cb742ba6c4a570095ae210610fb36b9a6788e964b65d4f989ff7afa6d0ea05976b335d3b5824600747b97d147937fef

  • SSDEEP

    1536:JxqjQ+P04wsmJC1Vk2qsk8F+ERR8o3CiGNUc5LvWQkZ55+s0ynA:sr85Cpo8FR8o3Ci/c5LuZA

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\8b068ca0e882d27c8809fca03d76a3c92ea8b54f74437d792c1ff64e0d9af57aN.exe
    "C:\Users\Admin\AppData\Local\Temp\8b068ca0e882d27c8809fca03d76a3c92ea8b54f74437d792c1ff64e0d9af57aN.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:2360
    • C:\Users\Admin\AppData\Local\Temp\3582-490\8b068ca0e882d27c8809fca03d76a3c92ea8b54f74437d792c1ff64e0d9af57aN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\8b068ca0e882d27c8809fca03d76a3c92ea8b54f74437d792c1ff64e0d9af57aN.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:1164

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\8b068ca0e882d27c8809fca03d76a3c92ea8b54f74437d792c1ff64e0d9af57aN.exe

    Filesize

    68KB

    MD5

    cd4410f846fbb687ff428791aa04ded1

    SHA1

    400c562e64d68a9aa17f2dc91eac5cf0d75ae33e

    SHA256

    36c3dd8f4668221f18c3c1d5740cc7d9d7cb4e091b4be5e42f0928ed43d25a28

    SHA512

    ce35f187d2448df8077f1f55f4e4750109481a835472ec8435f8f2ba7bbc65f95dd4a00c3decd6a167340050d912ee614866416f618041dfcd4d5ba5dcc84884

  • memory/1164-12-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/1164-99-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2360-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2360-100-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2360-102-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB