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Analysis

  • max time kernel
    143s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/09/2024, 04:27

General

  • Target

    2024-09-21_c1e80dc69b7b74cc5eac95c315d62d83_lockbit.exe

  • Size

    37KB

  • MD5

    c1e80dc69b7b74cc5eac95c315d62d83

  • SHA1

    531b5886d64ce1a228ea921999fb593396943325

  • SHA256

    d8791625d86dff22d527f72b69d314f9a34e88d1129e3ef1d29e040fcb433208

  • SHA512

    391c48bf1110d4b02f8aa15029e362a6ee3121b37057b6dbf936dfe451ed1f4c5855f4f22edbffe8175f25fea4eaaf9e41627e28b1db6d5663554fba3d11687d

  • SSDEEP

    768:ETEjmqVxAxuZY9AldyQSRA2wnXw/uaLoBB5Ux4PC74801h2w:cgxAxuW2ldyYvhauBSx40480Ow

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Subvert Trust Controls: Mark-of-the-Web Bypass 1 TTPs 1 IoCs

    When files are downloaded from the Internet, they are tagged with a hidden NTFS Alternate Data Stream (ADS) named Zone.Identifier with a specific value known as the MOTW.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • NTFS ADS 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-21_c1e80dc69b7b74cc5eac95c315d62d83_lockbit.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-21_c1e80dc69b7b74cc5eac95c315d62d83_lockbit.exe"
    1⤵
    • Checks computer location settings
    • Subvert Trust Controls: Mark-of-the-Web Bypass
    • System Location Discovery: System Language Discovery
    • NTFS ADS
    • Suspicious use of WriteProcessMemory
    PID:3396
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /d /c ping -n 2 127.0.0.1 > NUL & fsutil file setzerodata offset=0 length=524288 "C:\Users\Admin\AppData\Local\Temp\2024-09-21_c1e80dc69b7b74cc5eac95c315d62d83_lockbit.exe" & del "C:\Users\Admin\AppData\Local\Temp\2024-09-21_c1e80dc69b7b74cc5eac95c315d62d83_lockbit.exe" > NUL & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:4960
      • C:\Windows\SysWOW64\PING.EXE
        ping -n 2 127.0.0.1
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:4080
      • C:\Windows\SysWOW64\fsutil.exe
        fsutil file setzerodata offset=0 length=524288 "C:\Users\Admin\AppData\Local\Temp\2024-09-21_c1e80dc69b7b74cc5eac95c315d62d83_lockbit.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:636
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4616,i,15336851255456239337,16379811035920490645,262144 --variations-seed-version --mojo-platform-channel-handle=1008 /prefetch:8
    1⤵
      PID:228
    • C:\ProgramData\Microsoft\v2.0_2.0.0.0__df9c1b2fa7a5f2cb\quickassist.exe
      C:\ProgramData\Microsoft\v2.0_2.0.0.0__df9c1b2fa7a5f2cb\quickassist.exe
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4360

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\ProgramData\Microsoft\v2.0_2.0.0.0__df9c1b2fa7a5f2cb\quickassist.exe

      Filesize

      67KB

      MD5

      6f250371c7fecac6c02476d7fdfe5241

      SHA1

      000dacde56656a7cb3b192eb5dd3742bb8096935

      SHA256

      09b84a4e33ad286e7a461b08ca2e51e5654c9c552a0e7bc7ddbc860bcbcf643e

      SHA512

      d8f65b0d426b2ea153d244d2bb6a7a99bea140d33b9089a8d98c5beba587495b066840fe467ac7370a5786ef3d0af2cbb8e6a332b5f418d780da7170d048c093

    • C:\Users\Admin\AppData\Local\Temp\tmp6FFB.tmp

      Filesize

      37KB

      MD5

      c1e80dc69b7b74cc5eac95c315d62d83

      SHA1

      531b5886d64ce1a228ea921999fb593396943325

      SHA256

      d8791625d86dff22d527f72b69d314f9a34e88d1129e3ef1d29e040fcb433208

      SHA512

      391c48bf1110d4b02f8aa15029e362a6ee3121b37057b6dbf936dfe451ed1f4c5855f4f22edbffe8175f25fea4eaaf9e41627e28b1db6d5663554fba3d11687d