Overview

overview

10

Static

static

3

bbdf95831d...f0.exe

windows7-x64

10

bbdf95831d...f0.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    147s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-05-2024 08:36

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General

  • Target

    bbdf95831d8fff14ce1341b41f8540841137fb05aa1443a1a68966ab1cdfe0f0.exe

  • Size

    483KB

  • MD5

    59c3704795eeb6aed7b31cd2be1ba4a9

  • SHA1

    dbb44d900dee0b00ed2f4f5c472d700811ba3e00

  • SHA256

    bbdf95831d8fff14ce1341b41f8540841137fb05aa1443a1a68966ab1cdfe0f0

  • SHA512

    1043b98837ed8c6392e9a438ee0cb81461f1cd3a30532c804bd281cdd133dfe7d0291fe5cc1de5b885c76985c499bd28f02a443c9e6a0945574904f145f013fb

  • SSDEEP

    12288:oCy1uEgiPripqTLYwnGmp3LSrqQmv295hyd58aVe8JauMI:yuEgiriuY2GyLSrFWc5hkTVladI

Score
10/10
lockbitdefense_evasiondiscoveryevasionexecutionimpactpersistenceransomware

Malware Config

Extracted

Path

C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\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: DDFDBB89A5BFC07A11457812A997E534
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
  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Creates a large amount of network flows 1 TTPs

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

    discovery
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution
  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
    ransomwareevasion
  • 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 6 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
    ransomware
  • 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.

    ransomware
  • Modifies Control Panel 2 IoCs
    evasion
  • Modifies registry class 15 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 60 IoCs
  • Suspicious use of AdjustPrivilegeToken 47 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs
  • Uses Volume Shadow Copy service COM API

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

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\bbdf95831d8fff14ce1341b41f8540841137fb05aa1443a1a68966ab1cdfe0f0.exe
    "C:\Users\Admin\AppData\Local\Temp\bbdf95831d8fff14ce1341b41f8540841137fb05aa1443a1a68966ab1cdfe0f0.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:4368
    • 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:2728
      • C:\Windows\system32\vssadmin.exe
        vssadmin delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:2304
      • C:\Windows\System32\Wbem\WMIC.exe
        wmic shadowcopy delete
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:3776
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {default} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:3812
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {default} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:2684
    • 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:3076
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3076 -s 1796
          3⤵
          • Program crash
          PID:4212
      • 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\bbdf95831d8fff14ce1341b41f8540841137fb05aa1443a1a68966ab1cdfe0f0.exe" & Del /f /q "C:\Users\Admin\AppData\Local\Temp\bbdf95831d8fff14ce1341b41f8540841137fb05aa1443a1a68966ab1cdfe0f0.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3744
        • C:\Windows\SysWOW64\PING.EXE
          ping 127.0.0.7 -n 3
          3⤵
          • Runs ping.exe
          PID:432
        • C:\Windows\SysWOW64\fsutil.exe
          fsutil file setZeroData offset=0 length=524288 "C:\Users\Admin\AppData\Local\Temp\bbdf95831d8fff14ce1341b41f8540841137fb05aa1443a1a68966ab1cdfe0f0.exe"
          3⤵
            PID:2156
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:532
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
        1⤵
          PID:1348
        • C:\Windows\system32\printfilterpipelinesvc.exe
          C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
          1⤵
          • Drops file in System32 directory
          • Suspicious use of WriteProcessMemory
          PID:4808
          • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
            /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{473B84F8-1F46-4318-9391-2C59DCF67AD2}.xps" 133616182418360000
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1520
            • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeC2RClient.exe
              OfficeC2RClient.exe /error PID=1520 ProcessName="Microsoft OneNote" UIType=3 ErrorSource=0x8b10082a ErrorCode=0x80004005 ShowUI=1
              3⤵
              • Process spawned unexpected child process
              • Suspicious use of SetWindowsHookEx
              PID:1616
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3076 -ip 3076
          1⤵
            PID:2652

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\Restore-My-Files.txt
            Filesize

            512B

            MD5

            66a2beb734457cdc2f63159567340f02

            SHA1

            92cdfd05f66f669a05131458d68a7181e5c49f8c

            SHA256

            34d768e7a91b07f19e9786e338cdaed22e76654ee3f59fa228a0bcba9acc334f

            SHA512

            54c27815ed82dd2b38dcc4c9d219421a077f12cc807e1cdee09f530a5fb35b8777359092daebb7f1abbf9453eba219fbd02ddb60130a08812aaa150e9e0a4dc9

            Download Submit

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

            46KB

            MD5

            c15c6adc8c923ad87981f289025c37b2

            SHA1

            bfe6533f4afe3255046f7178f289a4c75ad89e76

            SHA256

            90f3a33919fdd766e90fd96f8f20a92c2d1376b7cfdc8b738c2f8e7e6c7498b1

            SHA512

            31dd03b208e00ac012fbe4189d5af1306cc8e3640d40efefab4aa1cabab3c4735eef0cb65e7750c3c77021934e145398e5e26389975cf36b193c8f622a5fde83

            Download Submit

          • memory/4368-1-0x0000000000400000-0x0000000000519000-memory.dmp

            Filesize

            1.1MB

            Download

          • memory/4368-7041-0x0000000000400000-0x0000000000519000-memory.dmp

            Filesize

            1.1MB

            Download

          • memory/4368-0-0x0000000000400000-0x0000000000519000-memory.dmp

            Filesize

            1.1MB

            Download

          • memory/4368-2-0x0000000000830000-0x0000000000831000-memory.dmp

            Filesize

            4KB

            Download

          • memory/4368-7-0x0000000000400000-0x0000000000519000-memory.dmp

            Filesize

            1.1MB

            Download

          • memory/4368-8-0x0000000000400000-0x0000000000519000-memory.dmp

            Filesize

            1.1MB

            Download

          • memory/4368-5-0x0000000000401000-0x00000000004E1000-memory.dmp

            Filesize

            896KB

            Download

          • memory/4368-4-0x00000000007F0000-0x000000000082B000-memory.dmp

            Filesize

            236KB

            Download

          • memory/4368-7043-0x0000000000400000-0x0000000000519000-memory.dmp

            Filesize

            1.1MB

            Download

          • memory/4368-7044-0x0000000000400000-0x0000000000519000-memory.dmp

            Filesize

            1.1MB

            Download

          • memory/4368-7045-0x0000000000400000-0x0000000000519000-memory.dmp

            Filesize

            1.1MB

            Download

          • memory/4368-7059-0x0000000000400000-0x0000000000519000-memory.dmp

            Filesize

            1.1MB

            Download

          • memory/4368-3-0x0000000000400000-0x0000000000519000-memory.dmp

            Filesize

            1.1MB

            Download

          • memory/4368-7066-0x0000000000400000-0x0000000000519000-memory.dmp

            Filesize

            1.1MB

            Download