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
    05-12-2024 22:03

General

  • Target

    5026058ed91ce2de0b5fcb498e24bf89f7785a99a79b0b5e8be813466f9a396b.exe

  • Size

    325KB

  • MD5

    aed2798ddbacdc8ea89ba7ee7df37eab

  • SHA1

    04bd0f49dd14c62c1d728d3a186c6ee5890e192e

  • SHA256

    5026058ed91ce2de0b5fcb498e24bf89f7785a99a79b0b5e8be813466f9a396b

  • SHA512

    5944465c03f0ad099b96e2e35a857f78df84bc1a947734280b457280beca36f8799b6e0fe281aaff7c8b1c4140e4e35058636b417ff6f9dc045a2178911ab37d

  • SSDEEP

    3072:sr85Cp5AHIAKdOmrcMRDUBHOUkXywCrOFnQrGnY/NDJZG87oW6V6yxdTIrYrtzU:k9pBnnN0yy9rOFnQSnY/bf7oW69TIrc6

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 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\5026058ed91ce2de0b5fcb498e24bf89f7785a99a79b0b5e8be813466f9a396b.exe
    "C:\Users\Admin\AppData\Local\Temp\5026058ed91ce2de0b5fcb498e24bf89f7785a99a79b0b5e8be813466f9a396b.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:116
    • C:\Users\Admin\AppData\Local\Temp\3582-490\5026058ed91ce2de0b5fcb498e24bf89f7785a99a79b0b5e8be813466f9a396b.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\5026058ed91ce2de0b5fcb498e24bf89f7785a99a79b0b5e8be813466f9a396b.exe"
      2⤵
      • Executes dropped EXE
      PID:4456

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\5026058ed91ce2de0b5fcb498e24bf89f7785a99a79b0b5e8be813466f9a396b.exe

    Filesize

    284KB

    MD5

    216d0466cbbbed89abf1c0256c24b35d

    SHA1

    639d7fd6ee530d7f65d93d39e3df37e8f8c758cd

    SHA256

    52aecde2cda2152e9711d6a461b91668dd7ca84e61be46b6857b8bf4c7eeee38

    SHA512

    fbdd61b4044cb8ff89ef836a9e736242e174f1ab38c9a61479ae77b305b6b45142dff11e565ddd7c912a2a33faca28c3e99fd3625e61cc8fe8ddb5275bcb97a0

  • memory/116-92-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/116-93-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/116-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB