Overview

overview

10

Static

static

3

f3e891a2a3...ae.exe

windows7-x64

10

f3e891a2a3...ae.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    265s
  • max time network
    274s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/03/2024, 07:28

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General

  • Target
    f3e891a2a39dd948cd85e1c8335a83e640d0987dbd48c16001a02f6b7c1733ae.exe
  • Size 862KB
  • Sample240301-javewsec4z
  • SHA256 f3e891a2a39dd948cd85e1c8335a83e640d0987dbd48c16001a02f6b7c1733ae
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
lockbitdiscoverypersistenceransomware

Malware Config

Extracted

Path

  • C:\Program Files\dotnet\Restore-My-Files.txt

Ransom Note
  • LockBit 2.0 Ransomware Your data are stolen and encrypted The data will be published on TOR website http://lockbitapt6vx57t3eeqjofwgcglmutr3a35nygvokja5uuccip4ykyd.onion and https://bigblog.at if you do not pay the ransom You can contact us and decrypt one file for free on these TOR sites http://lockbitsup4yezcd5enk5unncx3zcy7kw6wllyqmiyhvanjj352jayid.onion http://lockbitsap2oaqhcun3syvbqt6n5nzt7fqosc6jdlmsfleu3ka4k2did.onion OR https://decoding.at Decryption ID: F4B0B5EF9DC08D8774063A063E043992
URLs

  • http://lockbitapt6vx57t3eeqjofwgcglmutr3a35nygvokja5uuccip4ykyd.onion

  • https://bigblog.at

  • http://lockbitsup4yezcd5enk5unncx3zcy7kw6wllyqmiyhvanjj352jayid.onion

  • http://lockbitsap2oaqhcun3syvbqt6n5nzt7fqosc6jdlmsfleu3ka4k2did.onion

  • https://decoding.at

Extracted

Path

  • C:\Users\Admin\Desktop\LockBit_Ransomware.hta

Ransom Note
  • Any attempts to restore your files with the thrid-party software will be fatal for your files! To recovery your data and not to allow data leakage, it is possible only through purchase of a private key from us There is only one way to get your files back: Through a standard browser Brave (supports Tor links) FireFox Chrome Edge Opera Open link - https://decoding.at/ Through a Tor Browser - recommended Download Tor Browser - https://www.torproject.org/ and install it. Open one of links in Tor browser and follow instructions on these pages: http://lockbitsap2oaqhcun3syvbqt6n5nzt7fqosc6jdlmsfleu3ka4k2did.onion/or mirrorhttp://lockbitsup4yezcd5enk5unncx3zcy7kw6wllyqmiyhvanjj352jayid.onion/These links work only in the Tor browser! Follow the instructions on this page https://decoding.at may be blocked. We recommend using a Tor browser (or Brave) to access the TOR site Do not rename encrypted files. Do not try to decrypt using third party software, it may cause permanent data loss. Decryption of your files with the help of third parties may cause increased price (they add their fee to our). Tor Browser may be blocked in your country or corporate network. Use https://bridges.torproject.org or use Tor Browser over VPN. Tor Browser user manual https://tb-manual.torproject.org/about All your stolen important data will be loaded into our blog if you do not pay ransom. Our blog http://lockbitapt6vx57t3eeqjofwgcglmutr3a35nygvokja5uuccip4ykyd.onion or https://bigblog.at where you can see data of the companies which refused to pay ransom.
URLs

  • https://decoding.at/

  • http://lockbitsap2oaqhcun3syvbqt6n5nzt7fqosc6jdlmsfleu3ka4k2did.onion/or

  • https://decoding.at

  • http://lockbitapt6vx57t3eeqjofwgcglmutr3a35nygvokja5uuccip4ykyd.onion

  • https://bigblog.at

Signatures

  • Lockbit

    Ransomware family with multiple variants released since late 2019.

    ransomwarelockbit
  • Creates a large amount of network flows 1 TTPs

    This may indicate a network scan to discover remotely running services.

    discovery
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 1 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
    ransomware
  • Suspicious use of NtSetInformationThreadHideFromDebugger 18 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Modifies Control Panel 2 IoCs
    evasion
  • Modifies registry class 15 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f3e891a2a39dd948cd85e1c8335a83e640d0987dbd48c16001a02f6b7c1733ae.exe
    "C:\Users\Admin\AppData\Local\Temp\f3e891a2a39dd948cd85e1c8335a83e640d0987dbd48c16001a02f6b7c1733ae.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in System32 directory
    • Sets desktop wallpaper using registry
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Program Files directory
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4124
    • C:\Windows\SysWOW64\mshta.exe
      "C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\LockBit_Ransomware.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
      2⤵
        PID:2424
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2424 -s 1780
          3⤵
          • Program crash
          PID:2600
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C ping 127.0.0.7 -n 3 > Nul & fsutil file setZeroData offset=0 length=524288 "C:\Users\Admin\AppData\Local\Temp\f3e891a2a39dd948cd85e1c8335a83e640d0987dbd48c16001a02f6b7c1733ae.exe" & Del /f /q "C:\Users\Admin\AppData\Local\Temp\f3e891a2a39dd948cd85e1c8335a83e640d0987dbd48c16001a02f6b7c1733ae.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2168
        • C:\Windows\SysWOW64\PING.EXE
          ping 127.0.0.7 -n 3
          3⤵
          • Runs ping.exe
          PID:4740
        • C:\Windows\SysWOW64\fsutil.exe
          fsutil file setZeroData offset=0 length=524288 "C:\Users\Admin\AppData\Local\Temp\f3e891a2a39dd948cd85e1c8335a83e640d0987dbd48c16001a02f6b7c1733ae.exe"
          3⤵
            PID:4608
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 2424 -ip 2424
        1⤵
          PID:2076
        • C:\Windows\System32\rundll32.exe
          C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
          1⤵
            PID:4360
          • C:\Windows\system32\NOTEPAD.EXE
            "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Documents\Restore-My-Files.txt
            1⤵
              PID:1836

            Network

                  MITRE ATT&CK Enterprise v15

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                  Downloads

                  Restore-My-Files.txt
                  • Path C:\Program Files\dotnet\Restore-My-Files.txt
                  • Size 512B
                  • SHA256 b58f6d984a1f9964b64609c271dc5cabbf99206bc0639f47c58efee43a70e3c3
                  • MD5 SHA1 SHA512
                  Submit Download

                  LockBit_Ransomware.hta
                  • Path C:\Users\Admin\Desktop\LockBit_Ransomware.hta
                  • Size 46KB
                  • SHA256 90f3a33919fdd766e90fd96f8f20a92c2d1376b7cfdc8b738c2f8e7e6c7498b1
                  • MD5 SHA1 SHA512 SSDEEP
                  Submit Download