Analysis

  • max time kernel
    92s
  • max time network
    93s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-12-2024 19:36

General

  • Target

    8dba806ada2aafc3b2f8521f5bf3e0c12da4524b7ecfe23699e1650da923e9acN.exe

  • Size

    9.1MB

  • MD5

    03828938679472e1a363c68eee4beb90

  • SHA1

    facc992d3297bfa82bbbc8cdf7226cb43335755f

  • SHA256

    8dba806ada2aafc3b2f8521f5bf3e0c12da4524b7ecfe23699e1650da923e9ac

  • SHA512

    578cb6d07e81880989992cf2de0e03ca126cc1c54e071f1c5dfaebc44f4dd919c16c9abaa5c135a44bc8a96400705db2c0c208b3d7722c6b68c0b94a89f6a386

  • SSDEEP

    98304:Zcx8xbjY8snm0tKtV0NpJLUpARt4os9SkPUcMDoLV3un2NePITShWOrReT:yx8ZNsnmSOokSeluoTShJrRe

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\8dba806ada2aafc3b2f8521f5bf3e0c12da4524b7ecfe23699e1650da923e9acN.exe
    "C:\Users\Admin\AppData\Local\Temp\8dba806ada2aafc3b2f8521f5bf3e0c12da4524b7ecfe23699e1650da923e9acN.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:4824
    • C:\Users\Admin\AppData\Local\Temp\3582-490\8dba806ada2aafc3b2f8521f5bf3e0c12da4524b7ecfe23699e1650da923e9acN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\8dba806ada2aafc3b2f8521f5bf3e0c12da4524b7ecfe23699e1650da923e9acN.exe"
      2⤵
      • Executes dropped EXE
      PID:2940

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\8dba806ada2aafc3b2f8521f5bf3e0c12da4524b7ecfe23699e1650da923e9acN.exe

    Filesize

    9.0MB

    MD5

    341cb1e466d3e2d5365e70cbae71f342

    SHA1

    0718e61db2bcc941cdebb832780eac8ec16bb92f

    SHA256

    3a70427099190a4fae2bf033512d5e485e1576584a5ab8806e12a78bbf3700b3

    SHA512

    64353c3bc26955513929fded272ac40cb52a132351ffb8e597ef01efbe75dfa2d78fcb4491b3bdd51299b6c274dc34a53fbba2f87d657ca49fd4a638c0407cbe

  • memory/4824-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4824-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4824-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB