Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    31-12-2024 23:12

General

  • Target

    645ee1785092b9e919a8edf076fc6fd6eb57b1a7296a578e8a20d79281598661.exe

  • Size

    901KB

  • MD5

    2f830e249c310338d1a2fc647a6d7197

  • SHA1

    9f35db9e47a234893ba422321f94c2e0dd32697c

  • SHA256

    645ee1785092b9e919a8edf076fc6fd6eb57b1a7296a578e8a20d79281598661

  • SHA512

    26165d0771c51cb8f2d8493629dc2c914ff5a94fac5d23cb2af8fd9fae1ed09eb0ef14221e6bb1304f11cf9678173c2599b4329720e627567315fe85d91bfcd7

  • SSDEEP

    12288:m9T+DcQI1M8mmfdLyZYr3H7SicJFwuWGJ9NVJtF5Pgu3ZUZlL86Bd8:QCDcQslLOYKicJ6uJV5PFZUZh86g

Malware Config

Signatures

  • Detect Neshta payload 3 IoCs
  • Neshta

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

  • Neshta family
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 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 WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\645ee1785092b9e919a8edf076fc6fd6eb57b1a7296a578e8a20d79281598661.exe
    "C:\Users\Admin\AppData\Local\Temp\645ee1785092b9e919a8edf076fc6fd6eb57b1a7296a578e8a20d79281598661.exe"
    1⤵
    • Loads dropped DLL
    • 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:2328
    • C:\Users\Admin\AppData\Local\Temp\3582-490\645ee1785092b9e919a8edf076fc6fd6eb57b1a7296a578e8a20d79281598661.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\645ee1785092b9e919a8edf076fc6fd6eb57b1a7296a578e8a20d79281598661.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2332

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\MSOCache\ALLUSE~1\{90140~1\dwtrig20.exe

    Filesize

    547KB

    MD5

    cf6c595d3e5e9667667af096762fd9c4

    SHA1

    9bb44da8d7f6457099cb56e4f7d1026963dce7ce

    SHA256

    593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d

    SHA512

    ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80

  • \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\645ee1785092b9e919a8edf076fc6fd6eb57b1a7296a578e8a20d79281598661.exe

    Filesize

    860KB

    MD5

    6c1cd7f354f93c4b57a52753c0ba57b5

    SHA1

    93671873b5331d8da0f293a79412a61976e562e1

    SHA256

    9961b43011e4a512336e7b5cd99b971e26b1e2da63a0b7bd4c3447a2abd7decd

    SHA512

    7736729194b95195681268e58ab77a9b75407d8b4ebac3fbf0595de354b466ce636423bf087689f83e14ee730e1fd27e27521626d2f638cb666ee559f7ea64a1

  • memory/2328-86-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2328-88-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB