Analysis

  • max time kernel
    93s
  • 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
    19-11-2024 04:44

General

  • Target

    bb971055fe7092bb2a6affe0c34d5e26f17c1b57f3d9a1ec4937cc2d18915ea9N.exe

  • Size

    453KB

  • MD5

    85f150ff61410c9959b358fdecd043a0

  • SHA1

    81ca45b0f0e4c1ecd1432397fba46a9c6d628790

  • SHA256

    bb971055fe7092bb2a6affe0c34d5e26f17c1b57f3d9a1ec4937cc2d18915ea9

  • SHA512

    fdc82c83652ee1801ed5b81b46b3ee699193e1b812b7fcb8a68a1c9630cc84790f14389d8deec6f511fbcfd6b9998e8cdef82bae9765d13e94af8a6bd37a43f0

  • SSDEEP

    6144:k9XOqFQ4SEqCnYxIadtmZ1JvLVX4Z1QkPZX4/T2xZG1V6drOKEhg5m2qEUAtTdy:mB+EqO1vLMZo/THIdrChg4EUAtJy

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 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bb971055fe7092bb2a6affe0c34d5e26f17c1b57f3d9a1ec4937cc2d18915ea9N.exe
    "C:\Users\Admin\AppData\Local\Temp\bb971055fe7092bb2a6affe0c34d5e26f17c1b57f3d9a1ec4937cc2d18915ea9N.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:4496
    • C:\Users\Admin\AppData\Local\Temp\3582-490\bb971055fe7092bb2a6affe0c34d5e26f17c1b57f3d9a1ec4937cc2d18915ea9N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\bb971055fe7092bb2a6affe0c34d5e26f17c1b57f3d9a1ec4937cc2d18915ea9N.exe"
      2⤵
      • Executes dropped EXE
      PID:4960

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\bb971055fe7092bb2a6affe0c34d5e26f17c1b57f3d9a1ec4937cc2d18915ea9N.exe

    Filesize

    413KB

    MD5

    db00671773e1664c1d6d4fd4971009a3

    SHA1

    92561d657498eae748d60b20a2eb78010a54aa91

    SHA256

    883f702d8d6fc4bb403c06151b5723c6b5e4a39075e56f06b68bc95b83b811eb

    SHA512

    c704adbcd6001a1bc7ff12816492475d36ea113a101fb7ff4b45109cdcd62133c1aeaead7a5a6d2fdc1c6de0db545b05eeacefb2b32645cdd5e82ee847ea3aba

  • memory/4496-94-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4496-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4496-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4496-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB