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Analysis

  • max time kernel
    95s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/11/2024, 23:46

General

  • Target

    72772362534266477bf2b2a12fbb494e91bcb1ea1383760231961570cfb333ee.exe

  • Size

    112KB

  • MD5

    cb51108faf01fbba1e9908bb3934beb7

  • SHA1

    39b48ab223a9a47e4f51648cae6867bef177cef8

  • SHA256

    72772362534266477bf2b2a12fbb494e91bcb1ea1383760231961570cfb333ee

  • SHA512

    0c373e50991d3af12adf53417d994c0b598a49501f9a24d3fffe3c204fd4a6fb01aff8cc43f91a4153aba3e97006d1663318c8ec3a6ab8f9f603fbd14f16e45d

  • SSDEEP

    3072:sr85CGnwhnpiZuO8vE4ZlHVOqZwTcUjMnIq73RmHS0TpK/53PdsSlQuenjUL0YzK:k9dI1

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
  • 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 1 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 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\72772362534266477bf2b2a12fbb494e91bcb1ea1383760231961570cfb333ee.exe
    "C:\Users\Admin\AppData\Local\Temp\72772362534266477bf2b2a12fbb494e91bcb1ea1383760231961570cfb333ee.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:3728
    • C:\Users\Admin\AppData\Local\Temp\3582-490\72772362534266477bf2b2a12fbb494e91bcb1ea1383760231961570cfb333ee.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\72772362534266477bf2b2a12fbb494e91bcb1ea1383760231961570cfb333ee.exe"
      2⤵
      • Executes dropped EXE
      PID:3572

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\72772362534266477bf2b2a12fbb494e91bcb1ea1383760231961570cfb333ee.exe

    Filesize

    72KB

    MD5

    1dcc6495249089239e4a84feb81f9037

    SHA1

    1fc6ca3f2ed6cdc3f29b3da64073880342c9d611

    SHA256

    5830fe2618ea26d2fa33d5e8a1cf7eeb999ed442990682be9cad84e9e41bcd84

    SHA512

    1108938ea9462c5b9baddfbc4157243cdb20203f8c77b70e5fa5ee4269cd7850eccb427c943850661979ae88526d018479f2ca5d332213b93b00e3faafb0909e

  • memory/3728-94-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3728-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3728-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3728-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB