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Analysis

  • max time kernel
    134s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/05/2024, 23:16

General

  • Target

    5217458b40ac645e0f9160500311f5777e4c2c040ae817275894b375dba929db.exe

  • Size

    1.5MB

  • MD5

    3193dcd08e482ffb0e5bccc448624110

  • SHA1

    44c63a9a7ccdb3e80c8ca69512578672e74d2f26

  • SHA256

    5217458b40ac645e0f9160500311f5777e4c2c040ae817275894b375dba929db

  • SHA512

    48b902133c11258ba713296c80a1edd83743fc0f93b60b8a750f43c414177634b74009e2e20de145a129bddfd8eb4ec88de93067bb9c2a0419e18e47245699ba

  • SSDEEP

    24576:yVaUxZu7kzfyeU2DGU8b78BP8zQJ6+FVckwIfub7yxDiXTUL1lT2yxGQW6L3P:y847zfyh86cJ6/IfzWXTUDT2kGZ4P

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.

  • 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 2 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).

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5217458b40ac645e0f9160500311f5777e4c2c040ae817275894b375dba929db.exe
    "C:\Users\Admin\AppData\Local\Temp\5217458b40ac645e0f9160500311f5777e4c2c040ae817275894b375dba929db.exe"
    1⤵
    • Checks computer location settings
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2072
    • C:\Users\Admin\AppData\Local\Temp\3582-490\5217458b40ac645e0f9160500311f5777e4c2c040ae817275894b375dba929db.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\5217458b40ac645e0f9160500311f5777e4c2c040ae817275894b375dba929db.exe"
      2⤵
      • Executes dropped EXE
      PID:4244

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\5217458b40ac645e0f9160500311f5777e4c2c040ae817275894b375dba929db.exe

    Filesize

    1.4MB

    MD5

    bd23a41326e0b7bd2f8e4352bcacc60c

    SHA1

    bb9b2a1adbc0082331a71d3f1bd021e9d3113c4b

    SHA256

    b8cd642b9604b74c3a1a288ec1a052f391568346d44525f2bfbb4af75e4e58aa

    SHA512

    48631e0eef9266fe0d999b157e64369db1d609ab0cf09a9144a01d666902d0b56289b92b362773460cf62ff48e409da3007ee98b5604b28bf075da1715eeb8f5

  • memory/2072-99-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2072-100-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2072-102-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB