Analysis

  • max time kernel
    188s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    13/10/2022, 21:17

General

  • Target

    f5d31700c149d88ea21ac33c74b7c5656fb1d4e91bdd45b41874009fb26c4e7d.exe

  • Size

    221KB

  • MD5

    75968fff21ca873a69cc62c71a55bf70

  • SHA1

    97a611dfdc09fd0bd1c57b5f89156d23306f4582

  • SHA256

    f5d31700c149d88ea21ac33c74b7c5656fb1d4e91bdd45b41874009fb26c4e7d

  • SHA512

    960c83ffb91d95f3b37ad42128c09adaf737798b7ab1b7c905befa69e7b92c8e2a09dac63062f837b1d9a55bfd2c3b971d75a30a345462baf4c54e792d665b02

  • SSDEEP

    3072:sr85C89Vb/9qGdLSFCXyMuixGF7Qx7N91SOnt5iDcuiHO8pQIFd:k9MbzLXCM6UhSO2DqO8pQID

Malware Config

Signatures

  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 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). Likely ransomware behaviour.

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f5d31700c149d88ea21ac33c74b7c5656fb1d4e91bdd45b41874009fb26c4e7d.exe
    "C:\Users\Admin\AppData\Local\Temp\f5d31700c149d88ea21ac33c74b7c5656fb1d4e91bdd45b41874009fb26c4e7d.exe"
    1⤵
    • Modifies system executable filetype association
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1868
    • C:\Users\Admin\AppData\Local\Temp\3582-490\f5d31700c149d88ea21ac33c74b7c5656fb1d4e91bdd45b41874009fb26c4e7d.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\f5d31700c149d88ea21ac33c74b7c5656fb1d4e91bdd45b41874009fb26c4e7d.exe"
      2⤵
      • Executes dropped EXE
      PID:1184

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\3582-490\f5d31700c149d88ea21ac33c74b7c5656fb1d4e91bdd45b41874009fb26c4e7d.exe

          Filesize

          181KB

          MD5

          c43cbe928dd996576c4f9a26934b3d8e

          SHA1

          6c2d5714c58bf2c7a39d835b84b5fd55726dbd2a

          SHA256

          548e430228febf1912fcced22a152aea7d7829b9a920f7241a9f9b86ff37f7f8

          SHA512

          dacf699c218fac046be794895386e378bccfffdce49b7bc730e05f03c439ba55bd8e8bd78abf57e120c376166560431298d13e0a8ac18642ba3b8191af1e05af

        • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE

          Filesize

          252KB

          MD5

          9e2b9928c89a9d0da1d3e8f4bd96afa7

          SHA1

          ec66cda99f44b62470c6930e5afda061579cde35

          SHA256

          8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

          SHA512

          2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

        • \Users\Admin\AppData\Local\Temp\3582-490\f5d31700c149d88ea21ac33c74b7c5656fb1d4e91bdd45b41874009fb26c4e7d.exe

          Filesize

          181KB

          MD5

          c43cbe928dd996576c4f9a26934b3d8e

          SHA1

          6c2d5714c58bf2c7a39d835b84b5fd55726dbd2a

          SHA256

          548e430228febf1912fcced22a152aea7d7829b9a920f7241a9f9b86ff37f7f8

          SHA512

          dacf699c218fac046be794895386e378bccfffdce49b7bc730e05f03c439ba55bd8e8bd78abf57e120c376166560431298d13e0a8ac18642ba3b8191af1e05af

        • memory/1868-54-0x0000000075021000-0x0000000075023000-memory.dmp

          Filesize

          8KB