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Analysis

  • max time kernel
    124s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/10/2024, 21:31

General

  • Target

    2024-10-02_fdb339d6f10e4a15ac27fdd8f78883ea_lockbit.exe

  • Size

    32KB

  • MD5

    fdb339d6f10e4a15ac27fdd8f78883ea

  • SHA1

    401c4e1cbf2f2223477c2bbd61b33f8af2146fcd

  • SHA256

    d9a4b71fe192498302d03c778811ddfe3c8433222ce9ab4fc54111724db9fabd

  • SHA512

    f8f42384a58de709e4fd4d3693e17f8e1b62c24c80027320fe06403884619f17a21c9ed84f0c523b01b9cb45ad9349a3f37089677c21b68eec120a80a009743f

  • SSDEEP

    768:xF2jccRV0SOZ4Okd5uIuEnMAnHw7waN8BB5Ix4PC74801X5:HyV0SO2Okd5uQBrakBGx40480x5

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\2024-10-02_fdb339d6f10e4a15ac27fdd8f78883ea_lockbit.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-02_fdb339d6f10e4a15ac27fdd8f78883ea_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:212
    • 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\2024-10-02_fdb339d6f10e4a15ac27fdd8f78883ea_lockbit.exe" & del "C:\Users\Admin\AppData\Local\Temp\2024-10-02_fdb339d6f10e4a15ac27fdd8f78883ea_lockbit.exe" > NUL & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:3148
      • 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:3556
      • C:\Windows\SysWOW64\fsutil.exe
        fsutil file setzerodata offset=0 length=524288 "C:\Users\Admin\AppData\Local\Temp\2024-10-02_fdb339d6f10e4a15ac27fdd8f78883ea_lockbit.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4776
  • C:\ProgramData\Microsoft\v2.0_2.0.0.0__35a050ecd74d48ec\wecutil.exe
    C:\ProgramData\Microsoft\v2.0_2.0.0.0__35a050ecd74d48ec\wecutil.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2016

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\Microsoft\v2.0_2.0.0.0__35a050ecd74d48ec\wecutil.exe

    Filesize

    32KB

    MD5

    f502027646bc70fbd91ecbccd9f32b53

    SHA1

    626faac31b071e82ba1cc4cb595280123cf8915e

    SHA256

    e98619b112b000349146aa331a7db6926d67c25ab95ce41bc0d4a772afee44a7

    SHA512

    3a244b23dc448f4d9a5c06fb06cc9f4d90659425b69a36ec6af46a9f41334b7043dbe44ac376bea77955ed5dfd47ed38782842522d235976b119ff43ff440f5e

  • C:\Users\Admin\AppData\Local\Temp\tmpB49A.tmp

    Filesize

    32KB

    MD5

    fdb339d6f10e4a15ac27fdd8f78883ea

    SHA1

    401c4e1cbf2f2223477c2bbd61b33f8af2146fcd

    SHA256

    d9a4b71fe192498302d03c778811ddfe3c8433222ce9ab4fc54111724db9fabd

    SHA512

    f8f42384a58de709e4fd4d3693e17f8e1b62c24c80027320fe06403884619f17a21c9ed84f0c523b01b9cb45ad9349a3f37089677c21b68eec120a80a009743f