Analysis

  • max time kernel
    137s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 18:11

General

  • Target

    a1814f705386a561ab74a9b190c8d1a9c8ad3e0b6482846e272820a2be38e844.exe

  • Size

    331KB

  • MD5

    5a2b8bf9ea5dfafb7468ec652fd48323

  • SHA1

    35c3732955886a03080bd339d528912c3f2d4d2d

  • SHA256

    a1814f705386a561ab74a9b190c8d1a9c8ad3e0b6482846e272820a2be38e844

  • SHA512

    998f8ccce9f8753615fbb95900484c367bd0d0e557caa167d5608248610f8ac18c72d19baa1be48457100cff68f336795ddf1b00f1dac229d02cf26975692e00

  • SSDEEP

    6144:v99o5yvLuXiP/v+97vx7o18Ydquy+ozR1dlZ2:vo5yvLuyf+9bxuqt+oV1dlQ

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 3 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\a1814f705386a561ab74a9b190c8d1a9c8ad3e0b6482846e272820a2be38e844.exe
    "C:\Users\Admin\AppData\Local\Temp\a1814f705386a561ab74a9b190c8d1a9c8ad3e0b6482846e272820a2be38e844.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:1964
    • C:\Users\Admin\AppData\Local\Temp\3582-490\a1814f705386a561ab74a9b190c8d1a9c8ad3e0b6482846e272820a2be38e844.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\a1814f705386a561ab74a9b190c8d1a9c8ad3e0b6482846e272820a2be38e844.exe"
      2⤵
      • Executes dropped EXE
      PID:944

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\a1814f705386a561ab74a9b190c8d1a9c8ad3e0b6482846e272820a2be38e844.exe

    Filesize

    290KB

    MD5

    b1c685247e32f89784d4e22ac87d1232

    SHA1

    151f2904e472c06b04b1869cec1977c593143324

    SHA256

    7f574bcf40e83e02d618777a7a8f573ced900a643fa38a8c2c26867a2f1a023b

    SHA512

    5754a342c7dcb5bbbaa72d258997db4d716bc75dfa7848615f4ce25d88e43441fc72bc40238c0613cd279d6347ee29eea1ba3a73561ff07a4fa847d6460f2099

  • \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\a1814f705386a561ab74a9b190c8d1a9c8ad3e0b6482846e272820a2be38e844.exe

    Filesize

    290KB

    MD5

    b1c685247e32f89784d4e22ac87d1232

    SHA1

    151f2904e472c06b04b1869cec1977c593143324

    SHA256

    7f574bcf40e83e02d618777a7a8f573ced900a643fa38a8c2c26867a2f1a023b

    SHA512

    5754a342c7dcb5bbbaa72d258997db4d716bc75dfa7848615f4ce25d88e43441fc72bc40238c0613cd279d6347ee29eea1ba3a73561ff07a4fa847d6460f2099

  • \Users\Admin\AppData\Local\Temp\3582-490\a1814f705386a561ab74a9b190c8d1a9c8ad3e0b6482846e272820a2be38e844.exe

    Filesize

    290KB

    MD5

    b1c685247e32f89784d4e22ac87d1232

    SHA1

    151f2904e472c06b04b1869cec1977c593143324

    SHA256

    7f574bcf40e83e02d618777a7a8f573ced900a643fa38a8c2c26867a2f1a023b

    SHA512

    5754a342c7dcb5bbbaa72d258997db4d716bc75dfa7848615f4ce25d88e43441fc72bc40238c0613cd279d6347ee29eea1ba3a73561ff07a4fa847d6460f2099

  • memory/944-57-0x0000000000000000-mapping.dmp

  • memory/1964-54-0x0000000075A11000-0x0000000075A13000-memory.dmp

    Filesize

    8KB