Analysis

  • max time kernel
    93s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-11-2024 19:12

General

  • Target

    05c889d94f90a22433203fe1ae0b826523030bf4bb0bced40c0271ca7b66a804.exe

  • Size

    136KB

  • MD5

    fd2472e6d8af8d7cb27b0f209d267558

  • SHA1

    ceaba85fd6756e780615df6fbcf80092bf6f9912

  • SHA256

    05c889d94f90a22433203fe1ae0b826523030bf4bb0bced40c0271ca7b66a804

  • SHA512

    6ee65c99646fa5ac6bf99fade08ae31fa7f1c8a4ef443397950a7ed06229a817fea00d9bacdeda7cfafc2652a4c54adcce484abdafaa54a898cdf56c6d337cf2

  • SSDEEP

    3072:sr85CU7kc39wfHYTo7HVobLh1JFWQaP1p6:k9LdgT+obd1JFW11p6

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 WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\05c889d94f90a22433203fe1ae0b826523030bf4bb0bced40c0271ca7b66a804.exe
    "C:\Users\Admin\AppData\Local\Temp\05c889d94f90a22433203fe1ae0b826523030bf4bb0bced40c0271ca7b66a804.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:2060
    • C:\Users\Admin\AppData\Local\Temp\3582-490\05c889d94f90a22433203fe1ae0b826523030bf4bb0bced40c0271ca7b66a804.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\05c889d94f90a22433203fe1ae0b826523030bf4bb0bced40c0271ca7b66a804.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3500

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\05c889d94f90a22433203fe1ae0b826523030bf4bb0bced40c0271ca7b66a804.exe

    Filesize

    95KB

    MD5

    84d30002d1714f46ac4e7820566a8974

    SHA1

    f6af4cffe94d82a66d55b66bd699e2ba8fcca809

    SHA256

    742c1a2644c0ad5e40de662c0321e9df1e51a15384531ce0537f8b3f46e4c1b9

    SHA512

    e5ef0cf271b1db41c1729eaf897a8a6ecba4fab1c78d687997da401e25778f53b5443805bc94ea00712f098578630b303a0fde2272934485bd247c860fde0d00

  • memory/2060-92-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2060-93-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2060-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB