Analysis

  • max time kernel
    34s
  • max time network
    35s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-01-2025 19:03

General

  • Target

    1a42fd396a33565f4b3edb35324aba481650c4cc392ae429954be70b479a3395.exe

  • Size

    439KB

  • MD5

    e9d70155f6129f007a4e0f682b173fba

  • SHA1

    fd0f22dc85d37d8459b3d22ed25675e28b3d90e7

  • SHA256

    1a42fd396a33565f4b3edb35324aba481650c4cc392ae429954be70b479a3395

  • SHA512

    2c7e3ad3eacbfe5110f5aef34449d72d0d4071bd3bcf29f214d9fbac58fed47460ae295b15fe5d8364bfc3953520253ffd974d0a6d8ee6685889f3bee11d5662

  • SSDEEP

    6144:k9P7mwrGyPXu+39MUwHyruaoLMEyUib1pUjDBoP30g/53SfF63:KXGA++2UB0wEybpKHmEgRwF63

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\1a42fd396a33565f4b3edb35324aba481650c4cc392ae429954be70b479a3395.exe
    "C:\Users\Admin\AppData\Local\Temp\1a42fd396a33565f4b3edb35324aba481650c4cc392ae429954be70b479a3395.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:2972
    • C:\Users\Admin\AppData\Local\Temp\3582-490\1a42fd396a33565f4b3edb35324aba481650c4cc392ae429954be70b479a3395.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\1a42fd396a33565f4b3edb35324aba481650c4cc392ae429954be70b479a3395.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4960

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

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\1a42fd396a33565f4b3edb35324aba481650c4cc392ae429954be70b479a3395.exe

    Filesize

    398KB

    MD5

    c3825b3964cbd2559db6b307cd65f1ec

    SHA1

    2145ae2121e0724bae0a74207dbb75e212bca831

    SHA256

    43a0aca7d18daf4dc8003fd88485e36e8170d973635a734d74a5106fa9226cd5

    SHA512

    42286fc983b428bf6a9de4a86035f2240fc95c1f2fe420b2446159a183a634217024bfea7e0606294dc5edabec0086e900d538dab988e56905096f9c4c0db99d

  • memory/2972-94-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2972-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2972-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4960-9-0x0000000000760000-0x0000000000761000-memory.dmp

    Filesize

    4KB

  • memory/4960-93-0x0000000000010000-0x0000000000079000-memory.dmp

    Filesize

    420KB