Analysis

  • max time kernel
    94s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-01-2025 02:46

General

  • Target

    76899583cefceb04c396681a71d083633c7763e68f529e9f96a9ab8f62c4d8d5.exe

  • Size

    152KB

  • MD5

    0c7b17ceeb68ed5040beefb078226c8f

  • SHA1

    b09522037b0b39724acb8cd8d5df20fdd5dae4ff

  • SHA256

    76899583cefceb04c396681a71d083633c7763e68f529e9f96a9ab8f62c4d8d5

  • SHA512

    97d482db9130d3b05fc147c4f318004da670a5aa949341f48b631f6cd5248ca07c8023873dda93f02691c1272096cb61be552b63db15fd66784b89bb075b4f3d

  • SSDEEP

    3072:sr85CYgNFPzr2RJsbo78VKMjwIpXTUaqrTNk/:k9Yg7rLtKMghNk/

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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\76899583cefceb04c396681a71d083633c7763e68f529e9f96a9ab8f62c4d8d5.exe
    "C:\Users\Admin\AppData\Local\Temp\76899583cefceb04c396681a71d083633c7763e68f529e9f96a9ab8f62c4d8d5.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:5096
    • C:\Users\Admin\AppData\Local\Temp\3582-490\76899583cefceb04c396681a71d083633c7763e68f529e9f96a9ab8f62c4d8d5.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\76899583cefceb04c396681a71d083633c7763e68f529e9f96a9ab8f62c4d8d5.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:2284

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\76899583cefceb04c396681a71d083633c7763e68f529e9f96a9ab8f62c4d8d5.exe

    Filesize

    112KB

    MD5

    75f972e619d4201a85df330f1a53161c

    SHA1

    618806154a49f977c9d4b4c47758c8d06e42505a

    SHA256

    897222c44b2a869a6ea0c49d92494b79c78c663e14892dfeae03e64831882765

    SHA512

    ccf28b2e79c9d727911a2d81c4172688602a11be6e1a6464440275ec77b54f8024c012e089b11355ffdfe1aa1b7263c58df2deb00708d7d13257dc2846d5a1f2

  • memory/5096-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/5096-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/5096-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB