Analysis

  • max time kernel
    59s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-05-2024 14:35

General

  • Target

    1b98e58b5acf0de215b2bad7f734d453b0815cbe335d11bcb8d59124fd8c2016.exe

  • Size

    1.1MB

  • MD5

    79cc0d4a5a23d9775ba0971c6527f615

  • SHA1

    ce57b67d89440b8a942a445532daa8fb121220ef

  • SHA256

    1b98e58b5acf0de215b2bad7f734d453b0815cbe335d11bcb8d59124fd8c2016

  • SHA512

    99ed7e7ab55ad66e86cd47b7c9868c6af584ef5e00ce524f83bf7ac13aecf9af72eaa6bd8c43001d77b296aa4d28797f2cb0d50bc313ac40844503cc1e45e412

  • SSDEEP

    24576:zMs9TCjY3FV/3qdJDxOBu4nLesI+m6S9AIRl8Ma1KpHcJPJutmWTHgQ4gC:zMu/qX1OBu4nysI/P9Tlm17PktmWDg5v

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: BDCDC5DFEC1CE733116C16C24F53C521
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.

  • Creates a large amount of network flows 1 TTPs

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

  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
  • 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 1 IoCs
  • 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
  • Suspicious use of NtSetInformationThreadHideFromDebugger 17 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
  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Modifies registry class 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 28 IoCs
  • Suspicious use of AdjustPrivilegeToken 47 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\1b98e58b5acf0de215b2bad7f734d453b0815cbe335d11bcb8d59124fd8c2016.exe
    "C:\Users\Admin\AppData\Local\Temp\1b98e58b5acf0de215b2bad7f734d453b0815cbe335d11bcb8d59124fd8c2016.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in System32 directory
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Program Files directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2432
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin delete shadows /all /quiet & wmic shadowcopy delete & bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1728
      • C:\Windows\system32\vssadmin.exe
        vssadmin delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:2976
      • C:\Windows\System32\Wbem\WMIC.exe
        wmic shadowcopy delete
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4396
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {default} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:4264
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {default} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:5032
    • 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:3176
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 1692
          3⤵
          • Program crash
          PID:1556
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3696
    • 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 --no-appcompat-clear --mojo-platform-channel-handle=1412 --field-trial-handle=2744,i,16362475727591565961,3676688664819797550,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:1812
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3176 -ip 3176
        1⤵
          PID:2708

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          512B

          MD5

          e5a292e268b6064902f3f5c41e550fdd

          SHA1

          597957e74e9ef282c81fe6f1d85a06c8d0debc5b

          SHA256

          0af2a2d865df1245e846bfe0bb4761c53d10e74c2595b7d1e7073808869b8016

          SHA512

          274fa2fd771d94e1499197b127da06d7ad4f05ace5069ea94ddd8de5d3a15e2d21c09bbe481a4ff0a613edb713837029130a6aa5d6c2d3e5319b5cd870fe7ffd

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

          Filesize

          46KB

          MD5

          c15c6adc8c923ad87981f289025c37b2

          SHA1

          bfe6533f4afe3255046f7178f289a4c75ad89e76

          SHA256

          90f3a33919fdd766e90fd96f8f20a92c2d1376b7cfdc8b738c2f8e7e6c7498b1

          SHA512

          31dd03b208e00ac012fbe4189d5af1306cc8e3640d40efefab4aa1cabab3c4735eef0cb65e7750c3c77021934e145398e5e26389975cf36b193c8f622a5fde83

        • memory/2432-656-0x0000000000401000-0x00000000004E1000-memory.dmp

          Filesize

          896KB

        • memory/2432-4-0x0000000000401000-0x00000000004E1000-memory.dmp

          Filesize

          896KB

        • memory/2432-657-0x0000000000400000-0x0000000000516000-memory.dmp

          Filesize

          1.1MB

        • memory/2432-770-0x0000000000400000-0x0000000000516000-memory.dmp

          Filesize

          1.1MB

        • memory/2432-6-0x0000000000400000-0x0000000000516000-memory.dmp

          Filesize

          1.1MB

        • memory/2432-7-0x00000000007C0000-0x00000000007C1000-memory.dmp

          Filesize

          4KB

        • memory/2432-8-0x0000000000400000-0x0000000000516000-memory.dmp

          Filesize

          1.1MB

        • memory/2432-10-0x0000000000400000-0x0000000000516000-memory.dmp

          Filesize

          1.1MB

        • memory/2432-2-0x0000000000400000-0x0000000000516000-memory.dmp

          Filesize

          1.1MB

        • memory/2432-440-0x0000000000400000-0x0000000000516000-memory.dmp

          Filesize

          1.1MB

        • memory/2432-605-0x0000000000400000-0x0000000000516000-memory.dmp

          Filesize

          1.1MB

        • memory/2432-607-0x00000000023A0000-0x00000000023DB000-memory.dmp

          Filesize

          236KB

        • memory/2432-1-0x00000000023A0000-0x00000000023DB000-memory.dmp

          Filesize

          236KB

        • memory/2432-3-0x0000000000400000-0x0000000000516000-memory.dmp

          Filesize

          1.1MB

        • memory/2432-5-0x0000000000400000-0x0000000000516000-memory.dmp

          Filesize

          1.1MB

        • memory/2432-2003-0x0000000000400000-0x0000000000516000-memory.dmp

          Filesize

          1.1MB

        • memory/2432-2002-0x0000000000400000-0x0000000000516000-memory.dmp

          Filesize

          1.1MB

        • memory/2432-2149-0x0000000000400000-0x0000000000516000-memory.dmp

          Filesize

          1.1MB

        • memory/2432-2475-0x0000000000400000-0x0000000000516000-memory.dmp

          Filesize

          1.1MB

        • memory/2432-3217-0x0000000000400000-0x0000000000516000-memory.dmp

          Filesize

          1.1MB

        • memory/2432-3683-0x0000000000400000-0x0000000000516000-memory.dmp

          Filesize

          1.1MB

        • memory/2432-5481-0x0000000000400000-0x0000000000516000-memory.dmp

          Filesize

          1.1MB

        • memory/2432-7019-0x0000000000400000-0x0000000000516000-memory.dmp

          Filesize

          1.1MB

        • memory/2432-7020-0x0000000000400000-0x0000000000516000-memory.dmp

          Filesize

          1.1MB

        • memory/2432-7024-0x0000000000400000-0x0000000000516000-memory.dmp

          Filesize

          1.1MB

        • memory/2432-0-0x0000000000400000-0x0000000000516000-memory.dmp

          Filesize

          1.1MB