Analysis

  • max time kernel
    93s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-12-2024 22:53

General

  • Target

    5f64f281cdbbef1f3f0450eb752bbf2396db60a5991775741b9f42ce6662ba20.exe

  • Size

    88KB

  • MD5

    ba308cc7552304016fbc28e0d5d84549

  • SHA1

    5846d7e004e9b0385f37a048dc4b8d0833ff8ffb

  • SHA256

    5f64f281cdbbef1f3f0450eb752bbf2396db60a5991775741b9f42ce6662ba20

  • SHA512

    32877c301e0cea3107cb1c816630d5611b725a2753f4ba8635f46345d808593460197e81e84419bdf7509c00415da0e2782db856ec2951b821d900155b3a6828

  • SSDEEP

    1536:JxqjQ+P04wsmJCSROoLm8BM6vT2up8sPKe:sr85CSROobO6r2+8sPKe

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\5f64f281cdbbef1f3f0450eb752bbf2396db60a5991775741b9f42ce6662ba20.exe
    "C:\Users\Admin\AppData\Local\Temp\5f64f281cdbbef1f3f0450eb752bbf2396db60a5991775741b9f42ce6662ba20.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:1136
    • C:\Users\Admin\AppData\Local\Temp\3582-490\5f64f281cdbbef1f3f0450eb752bbf2396db60a5991775741b9f42ce6662ba20.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\5f64f281cdbbef1f3f0450eb752bbf2396db60a5991775741b9f42ce6662ba20.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2736

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\5f64f281cdbbef1f3f0450eb752bbf2396db60a5991775741b9f42ce6662ba20.exe

    Filesize

    47KB

    MD5

    55b55e73f990d1325cbb571605145b6d

    SHA1

    4db51c798f83b2e32424f857068068fe04a19676

    SHA256

    bee8d83721790c27e48d97b5355674c295d8faf9497179ccde26ed847314da29

    SHA512

    7f19c152a7f1e0669e3c70314cb51ee1fc0eafa000c09aafe835a86f69955eb906e44a7bffaf9472eb6caa1bfd2304261708709607b3f93bab88dd578dbfe0f2

  • memory/1136-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1136-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1136-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB