Resubmissions

14/08/2026, 11:12

260814-naxbpsswhw10

03/08/2024, 12:19

240803-pg7lpasfql10

15/03/2024, 00:25

240315-aqtc4adf3310

15/03/2024, 00:20

240315-amv3hsde3910

Analysis

  • max time kernel
    74s
  • max time network
    55s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    03/08/2024, 12:19

General

  • Target
    LB3.exe
  • Size 147KB
  • Sample240803-pg7lpasfql
  • SHA256 d20d22dd302f51341405794a8fb3866c234fafe614b67b55934a9a959a4cd847
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Path
  • C:\xcEElHqGu.README.txt

  • lockbit

Ransom Note
  • ~~~ LockBit 3.0 the world's fastest ransomware~~~ >>>> Your data are stolen and encrypted The data will be published on TOR website if you do not pay the ransom All of your files have been encrypted! (Warning: Attempting to remove the software will corrupt your hard drives meaning no further use even when wiped. We simply charge $25 which is far cheaper than buying a new drive.) Your computer was infected with a ransomware software. Your files have been encrypted and you won't be able to decrypt them without purchasing $25 BTC. What can I do to get my files back? You will send payment of $25 BTC to gain access to your files again, once payment is made after 3 confirmations on the blockchain (15 mins) your files will be restored and the software will un-install itself from your computer. How do I pay, where do I get Bitcoin? Purchasing Bitcoin varies from country to country, you are best advised to do a quick google search yourself to find out how to buy Bitcoin. Many of our customers have reported these sites to be fast and reliable: Coinmama - hxxps://www.coinmama.com Bitpanda - hxxps://www.bitpanda.com Payment will increase soon to double, be cooperative and your files will be released. Payment information Amount: 0.000385636 BTC Bitcoin Address: bc1qc76qr24pxnms9f93mytfg4dn7ztuvmje7g43dr

Signatures

  • Lockbit

    Ransomware family with multiple variants released since late 2019.

  • Renames multiple (530) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops desktop.ini file(s) 2 IoCs
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

  • Drops file in System32 directory 4 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 6 IoCs
  • Modifies Control Panel 2 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Modifies registry class 6 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 30 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs
  • Suspicious behavior: RenamesItself 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 27 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of SetWindowsHookEx 15 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\LB3.exe
    "C:\Users\Admin\AppData\Local\Temp\LB3.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Sets desktop wallpaper using registry
    • System Location Discovery: System Language Discovery
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1980
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:3204
    • C:\ProgramData\B3C0.tmp
      "C:\ProgramData\B3C0.tmp"
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:4444
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\B3C0.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3796
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k appmodel -s tiledatamodelsvc
    1⤵
    • Drops file in Windows directory
    PID:2320
  • C:\Windows\system32\printfilterpipelinesvc.exe
    C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
    1⤵
    • Drops file in System32 directory
    • Suspicious use of WriteProcessMemory
    PID:1740
    • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
      /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{91F7D01D-C3F9-42A6-966F-4801F47C45FF}.xps" 133671611720130000
      2⤵
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:3708
  • C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\xcEElHqGu.README.txt
    1⤵
    • Opens file in notepad (likely ransom note)
    PID:3712
  • C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe"
    1⤵
    • Enumerates system info in registry
    • Modifies data under HKEY_USERS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:4656
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=106.0.5249.119 --initial-client-data=0xd8,0xdc,0xe0,0xb4,0xe4,0x7fffbc2b9758,0x7fffbc2b9768,0x7fffbc2b9778
      2⤵
        PID:3104
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1576 --field-trial-handle=1824,i,15127310383755037783,10780061860312005566,131072 /prefetch:2
        2⤵
          PID:4912
        • C:\Program Files\Google\Chrome\Application\chrome.exe
          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=1856 --field-trial-handle=1824,i,15127310383755037783,10780061860312005566,131072 /prefetch:8
          2⤵
            PID:1568
          • C:\Program Files\Google\Chrome\Application\chrome.exe
            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=1704 --field-trial-handle=1824,i,15127310383755037783,10780061860312005566,131072 /prefetch:8
            2⤵
              PID:4664
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --first-renderer-process --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=2956 --field-trial-handle=1824,i,15127310383755037783,10780061860312005566,131072 /prefetch:1
              2⤵
                PID:2728
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=2964 --field-trial-handle=1824,i,15127310383755037783,10780061860312005566,131072 /prefetch:1
                2⤵
                  PID:1860
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --mojo-platform-channel-handle=4432 --field-trial-handle=1824,i,15127310383755037783,10780061860312005566,131072 /prefetch:1
                  2⤵
                    PID:3180
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.ProcessorMetrics --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4844 --field-trial-handle=1824,i,15127310383755037783,10780061860312005566,131072 /prefetch:8
                    2⤵
                      PID:1960
                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5020 --field-trial-handle=1824,i,15127310383755037783,10780061860312005566,131072 /prefetch:8
                      2⤵
                        PID:4680
                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=4872 --field-trial-handle=1824,i,15127310383755037783,10780061860312005566,131072 /prefetch:8
                        2⤵
                          PID:1820
                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --mojo-platform-channel-handle=5276 --field-trial-handle=1824,i,15127310383755037783,10780061860312005566,131072 /prefetch:1
                          2⤵
                            PID:3856
                        • C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe
                          "C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe"
                          1⤵
                            PID:344
                          • C:\Windows\system32\OpenWith.exe
                            C:\Windows\system32\OpenWith.exe -Embedding
                            1⤵
                            • Modifies registry class
                            • Suspicious use of SetWindowsHookEx
                            PID:788

                          Network

                                MITRE ATT&CK Enterprise v15

                                Replay Monitor

                                Loading Replay Monitor...

                                Downloads

                                desktop.ini

                                • Path C:\$Recycle.Bin\S-1-5-21-873560699-1074803302-2326074425-1000\desktop.ini
                                • Size 129B
                                • SHA256 95053be4ac0980be05a0d1f94adc750ae089244c396d7c05ef3fb758e6346394
                                • MD5 SHA1 SHA512

                                B3C0.tmp

                                • Path C:\ProgramData\B3C0.tmp
                                • Size 14KB
                                • SHA256 917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
                                • MD5 SHA1 SHA512 SSDEEP

                                BrowserMetrics-660EA6E2-C14.pma.xcEElHqGu

                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\BrowserMetrics\BrowserMetrics-660EA6E2-C14.pma.xcEElHqGu
                                • Size 4.0MB
                                • SHA256 22cb7b9fe9c21d74db4394780b16e1976b2b3ed6cc60712e63db9ad872f50030
                                • MD5 SHA1 SHA512 SSDEEP

                                settings.dat

                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad\settings.dat
                                • Size 40B
                                • SHA256 dcd2ab55cf4a678558dcafb4e7ae2b498a101aada8f53be000af6c8e9a3f67b9
                                • MD5 SHA1 SHA512

                                f_000001

                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Cache\Cache_Data\f_000001
                                • Size 209KB
                                • SHA256 27d9c4613df7a3c04da0b79c13217aa69992b441acb7e44bf2a7578ca87d97d6
                                • MD5 SHA1 SHA512 SSDEEP

                                the-real-index

                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Code Cache\js\index-dir\the-real-index
                                • Size 168B
                                • SHA256 8916130bc60e54dbcd85198cfed8f8d82d7eee35d0540b232b8c20fa84e3899e
                                • MD5 SHA1 SHA512

                                data_1

                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\DawnCache\data_1
                                • Size 264KB
                                • SHA256 b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec
                                • MD5 SHA1 SHA512 SSDEEP

                                Google Profile.ico

                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Google Profile.ico
                                • Size 193KB
                                • SHA256 e9eecf02f444877e789d64c2290d6922bd42e2f2fe9c91a1381959acd3292831
                                • MD5 SHA1 SHA512 SSDEEP

                                Network Persistent State

                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\Network Persistent State
                                • Size 1KB
                                • SHA256 d118f0811e75c76bd1822a37d58fbdfa1d7d8e82771cf2587a6a16010970152c
                                • MD5 SHA1 SHA512

                                TransportSecurity

                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity
                                • Size 371B
                                • SHA256 1bd034757520fc50204534c8613a6adb612f0db5853f4f8c8732c647af85e421
                                • MD5 SHA1 SHA512

                                Preferences

                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                • Size 6KB
                                • SHA256 cfb273b6fa4a7ece763e9a59307bcf3d363c560501518653a0da3c7a34a55b54
                                • MD5 SHA1 SHA512 SSDEEP

                                Preferences

                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                • Size 6KB
                                • SHA256 b7e2b591ac8c1d6f724c5b55798f62eba8d793f1b87c819c882bfc8204ffd2d4
                                • MD5 SHA1 SHA512 SSDEEP

                                Secure Preferences

                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Secure Preferences
                                • Size 12KB
                                • SHA256 c798e3fa816574cff5b225581faca499ac81f492288473a6c114b950b73adabd
                                • MD5 SHA1 SHA512 SSDEEP

                                Local State

                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                • Size 160KB
                                • SHA256 ff39b63d325c14fbc504b3bc3b883b2cabcba8aa6e283802d8f175fc740dac32
                                • MD5 SHA1 SHA512 SSDEEP

                                Local State

                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                • Size 160KB
                                • SHA256 450bcbeae4019b8b6c876bfa2ec25b400895584c8b69eaafd558917879a5cf0f
                                • MD5 SHA1 SHA512 SSDEEP

                                Local State~RFe583275.TMP

                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State~RFe583275.TMP
                                • Size 947B
                                • SHA256 61d94a1f1492dbd4c9e9ebf18ed68b07002d6190ff3299ef5d481aa4309d87c8
                                • MD5 SHA1 SHA512

                                data_2

                                • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\ShaderCache\data_2
                                • Size 8KB
                                • SHA256 ec1702806f4cc7c42a82fc2b38e89835fde7c64bb32060e0823c9077ca92efb7
                                • MD5 SHA1 SHA512 SSDEEP

                                DDDDDDD

                                • Path C:\Users\Admin\AppData\Local\Temp\DDDDDDD
                                • Size 147KB
                                • SHA256 fdbc1542bc96cd14d3783a78916462a2b32c21d4d3b423559bae7e9448b6b437
                                • MD5 SHA1 SHA512 SSDEEP

                                {97E6DBC4-F932-4AD2-8AF4-44268C5D6000}

                                • Path C:\Users\Admin\AppData\Local\Temp\{97E6DBC4-F932-4AD2-8AF4-44268C5D6000}
                                • Size 4KB
                                • SHA256 39e14f03ab31d1594746f49481159e2c9cf40afaee1339e424601f426af5ef13
                                • MD5 SHA1 SHA512 SSDEEP

                                Open Notebook.onetoc2

                                • Path C:\Users\Admin\Documents\OneNote Notebooks\My Notebook\Open Notebook.onetoc2
                                • Size 4KB
                                • SHA256 7bdedd63e5981641903176ca0c52db80da9fc3c24b88b2e6a5c097262507639e
                                • MD5 SHA1 SHA512 SSDEEP

                                xcEElHqGu.README.txt

                                • Path C:\xcEElHqGu.README.txt
                                • Size 1KB
                                • SHA256 413dd9df6327c861bd0ba99a1e99b2b00b75961230d8b499c993419da1ecca29
                                • MD5 SHA1 SHA512

                                DDDDDDDDDDD

                                • Path F:\$RECYCLE.BIN\S-1-5-21-873560699-1074803302-2326074425-1000\DDDDDDDDDDD
                                • Size 129B
                                • SHA256 62b109a4ae125c1b82cf290a9d68a4e58d543f5af15ccd8bdc546ebf176ce751
                                • MD5 SHA1 SHA512

                                memory/1980-1-0x0000000002790000-0x00000000027A0000-memory.dmp

                                memory/1980-0-0x0000000002790000-0x00000000027A0000-memory.dmp

                                memory/1980-2-0x0000000002790000-0x00000000027A0000-memory.dmp

                                memory/2320-2893-0x000001D3F6700000-0x000001D3F6701000-memory.dmp

                                memory/2320-2877-0x000001D3F1FD0000-0x000001D3F1FE0000-memory.dmp

                                memory/2320-2881-0x000001D3F2040000-0x000001D3F2050000-memory.dmp

                                memory/2320-2888-0x000001D3F20F0000-0x000001D3F20F1000-memory.dmp

                                memory/2320-2890-0x000001D3F65B0000-0x000001D3F65B1000-memory.dmp

                                memory/2320-2892-0x000001D3F66F0000-0x000001D3F66F1000-memory.dmp

                                memory/3708-3411-0x00007FFF99530000-0x00007FFF99540000-memory.dmp

                                memory/3708-2937-0x00007FFF99530000-0x00007FFF99540000-memory.dmp

                                memory/3708-2938-0x00007FFF99530000-0x00007FFF99540000-memory.dmp

                                memory/3708-2939-0x00007FFF99530000-0x00007FFF99540000-memory.dmp

                                memory/3708-2940-0x00007FFF99530000-0x00007FFF99540000-memory.dmp

                                memory/3708-2943-0x00007FFF963A0000-0x00007FFF963B0000-memory.dmp

                                memory/3708-3408-0x00007FFF99530000-0x00007FFF99540000-memory.dmp

                                memory/3708-2944-0x00007FFF963A0000-0x00007FFF963B0000-memory.dmp

                                memory/3708-3410-0x00007FFF99530000-0x00007FFF99540000-memory.dmp

                                memory/3708-3409-0x00007FFF99530000-0x00007FFF99540000-memory.dmp