Analysis

  • max time kernel
    94s
  • 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
    11-12-2024 15:41

General

  • Target

    b0b37f982064c0d501d2769cc601a6c7c962e90f87ea8c7f06d6a66e109a4145N.exe

  • Size

    161KB

  • MD5

    a363a7020b0fa43af8b73f4eea26c7d0

  • SHA1

    fae3684a4afa2bb58866e72ef5682dcf202cdf66

  • SHA256

    b0b37f982064c0d501d2769cc601a6c7c962e90f87ea8c7f06d6a66e109a4145

  • SHA512

    4542f9c31768cfc54bc7ef7cc079faf104d969ad3a9dc06d4a3079d014c9bd67df0894841ae9549e75702fbb8b9e54873430c359e3e1cfbcec45c16765e1c25a

  • SSDEEP

    1536:JxqjQ+P04wsmJCRQh4tE3kgmhTXAEpXEgmghi2MhPPMpuFsj3YOr:sr85CAmEUgcTXAEpUgy1hPPsuFsTYQ

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 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\b0b37f982064c0d501d2769cc601a6c7c962e90f87ea8c7f06d6a66e109a4145N.exe
    "C:\Users\Admin\AppData\Local\Temp\b0b37f982064c0d501d2769cc601a6c7c962e90f87ea8c7f06d6a66e109a4145N.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:1332
    • C:\Users\Admin\AppData\Local\Temp\3582-490\b0b37f982064c0d501d2769cc601a6c7c962e90f87ea8c7f06d6a66e109a4145N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\b0b37f982064c0d501d2769cc601a6c7c962e90f87ea8c7f06d6a66e109a4145N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4788

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\b0b37f982064c0d501d2769cc601a6c7c962e90f87ea8c7f06d6a66e109a4145N.exe

    Filesize

    120KB

    MD5

    be0a61382662a28189d8f7490fee03e6

    SHA1

    42e7bf22529ac840d38cffc845657ac66f97f649

    SHA256

    f0af970c6572edc2aae06ccf035d5826f654c8e33beea95f7bea76f67a9c8513

    SHA512

    95b9c6d2790b614762619954ef53819c13f7d775d149de8e8c3bde3061c262f36ba2158859754637989321ec03834bf9b31a3faa1158bb7239d23ea377134b89

  • memory/1332-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1332-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1332-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1332-99-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB