Analysis

  • max time kernel
    15s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    26/11/2024, 22:28

General

  • Target

    2cff782479041ef21aa980701aef08b990175e57d262bbad91dc119cdc959a82N.exe

  • Size

    6.8MB

  • MD5

    51b5fd8eb9b2cbf77b933672435329a0

  • SHA1

    674572d091e0b69839c98359aa9aa8696bbfe210

  • SHA256

    2cff782479041ef21aa980701aef08b990175e57d262bbad91dc119cdc959a82

  • SHA512

    0cb07c83293e18fbd14a9748cb9dad09b87e9bee8284755010f3d7aec6310c01de28031685848b58be3be4328eeb9713f56b5844b5b105bf74c8171d11b1c3c6

  • SSDEEP

    98304:jMMMMMMMMMMMMMMMMMMMMMMGfZZFHtdbyH9tTWOEWIgWf/QPDBpVFL/qg0P9ckrJ:mftHtdbym32veP9ckrmEyzRF4d

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 2 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 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2cff782479041ef21aa980701aef08b990175e57d262bbad91dc119cdc959a82N.exe
    "C:\Users\Admin\AppData\Local\Temp\2cff782479041ef21aa980701aef08b990175e57d262bbad91dc119cdc959a82N.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:1364
    • C:\Users\Admin\AppData\Local\Temp\3582-490\2cff782479041ef21aa980701aef08b990175e57d262bbad91dc119cdc959a82N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\2cff782479041ef21aa980701aef08b990175e57d262bbad91dc119cdc959a82N.exe"
      2⤵
      • Executes dropped EXE
      PID:1780

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        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\2cff782479041ef21aa980701aef08b990175e57d262bbad91dc119cdc959a82N.exe

          Filesize

          6.8MB

          MD5

          0ceeb3c890556c5d6f5b98b7f593a0b5

          SHA1

          e8672c2a890572d1f5611fec7fc0a27efee93f0a

          SHA256

          2caf173c423578b2b07716e1e9a1751379ab278dcd48085e592fde7ce3eff4f6

          SHA512

          0eb8dcebe403efa458563b1660d03eb32b1d2ec65e409e47b989e2c9051d85ee580862403dad92584887333c44036559af0f2e4515db105032352f3bae89cebc

        • memory/1364-83-0x0000000000400000-0x000000000041B000-memory.dmp

          Filesize

          108KB

        • memory/1364-85-0x0000000000400000-0x000000000041B000-memory.dmp

          Filesize

          108KB