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Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    19/06/2024, 08:23 UTC

General

  • Target

    2024-06-19_158c05f6a58911e568c0497caf1dd363_darkside_lockbit_neshta.exe

  • Size

    510KB

  • MD5

    158c05f6a58911e568c0497caf1dd363

  • SHA1

    8fb6c09de4406ba53bccfe798d8ac89fcf7813d7

  • SHA256

    6b26877f0065b3a38c07050b1cb4615d22ef039ca94fcae118bd16520a200b1c

  • SHA512

    cb948b85795240c329c61ece866e3e04cac570552c4a06c9d915d90d363ad66a46579c3bbc564de574554da40d5ee69b24308c4004deb802b48bc7fe6569fb2b

  • SSDEEP

    12288:edg/1MB94JD7RfaVT1hG98P67PNV3giFH6J1VjR3L6dpbQrQyEpInmwuRUfaZ7mC:OgdRpBq1hG98P67PNV3giFH6J1VjR3Wf

Malware Config

Extracted

Family

blackmatter

Version

25.239

Signatures

  • BlackMatter Ransomware

    BlackMatter ransomware group claims to be Darkside and REvil succesor.

  • Detect Neshta payload 3 IoCs
  • Lockbit

    Ransomware family with multiple variants released since late 2019.

  • Neshta

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

  • Rule to detect Lockbit 3.0 ransomware Windows payload 1 IoCs
  • 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 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).

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-19_158c05f6a58911e568c0497caf1dd363_darkside_lockbit_neshta.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-19_158c05f6a58911e568c0497caf1dd363_darkside_lockbit_neshta.exe"
    1⤵
    • Loads dropped DLL
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2408
    • C:\Users\Admin\AppData\Local\Temp\3582-490\2024-06-19_158c05f6a58911e568c0497caf1dd363_darkside_lockbit_neshta.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\2024-06-19_158c05f6a58911e568c0497caf1dd363_darkside_lockbit_neshta.exe"
      2⤵
      • Executes dropped EXE
      PID:2432

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\2024-06-19_158c05f6a58911e568c0497caf1dd363_darkside_lockbit_neshta.exe

    Filesize

    469KB

    MD5

    c2bc344f6dde0573ea9acdfb6698bf4c

    SHA1

    d6ae7dc2462c8c35c4a074b0a62f07cfef873c77

    SHA256

    a736269f5f3a9f2e11dd776e352e1801bc28bb699e47876784b8ef761e0062db

    SHA512

    d60cf86c0267cd4e88d21768665bbb43f3048dace1e0013b2361c5bfabf2656ff6215dfb75b6932e09545473305b4f707c069721cdde317b1df1709cd9fc61c0

  • memory/2408-86-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2408-88-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

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