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Resubmissions

03/08/2024, 12:19

240803-pg7lpasfql 10

15/03/2024, 00:25

240315-aqtc4adf33 10

15/03/2024, 00:20

240315-amv3hsde39 10

Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/03/2024, 00:20

General

  • Target

    LB3.exe

  • Size

    147KB

  • MD5

    1973ccbab82020881d531ccd1f2ca48e

  • SHA1

    7e18f712e26ea32b0e8aeb4cd3c958eb8d32dfed

  • SHA256

    d20d22dd302f51341405794a8fb3866c234fafe614b67b55934a9a959a4cd847

  • SHA512

    67654e67afe6a3e1ddf335dff4b976e254c45d8046853607cb4e98af6cd43accee8f2e35e296b932385bc9a6b7fed96ee4be6e113457eb5eb057bd8301f476f6

  • SSDEEP

    1536:PzICS4AAwczUUf8y8gvMH+1zGSNAojMP95D1xD8UhzyIccE+72p2Kbm+0ep3PeAM:wqJogYkcSNm9V7D8URMcS0ep3BcTT

Malware Config

Extracted

Path

C:\xcEElHqGu.README.txt

Family

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 (621) files with added filename extension

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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
  • Drops file in System32 directory 4 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 3 IoCs
  • Modifies Control Panel 2 IoCs
  • Modifies registry class 5 IoCs
  • Opens file in notepad (likely ransom note) 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 13 IoCs
  • Suspicious use of WriteProcessMemory 11 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
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3248
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:4404
    • C:\ProgramData\196B.tmp
      "C:\ProgramData\196B.tmp"
      2⤵
      • Checks computer location settings
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:2324
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\196B.tmp >> NUL
        3⤵
          PID:3216
    • 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:1684
    • 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=1420 --field-trial-handle=2272,i,4858140932023865871,5726683989663339295,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:5088
      • 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:5076
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
        1⤵
          PID:4340
        • C:\Windows\system32\printfilterpipelinesvc.exe
          C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
          1⤵
          • Drops file in System32 directory
          • Suspicious use of WriteProcessMemory
          PID:4672
          • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
            /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{1E5DC798-666C-4280-BDFB-44EA9EA4D966}.xps" 133549356908930000
            2⤵
            • Checks processor information in registry
            • Enumerates system info in registry
            • Suspicious use of SetWindowsHookEx
            PID:4296

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\$Recycle.Bin\S-1-5-21-3808065738-1666277613-1125846146-1000\EEEEEEEEEEE

          Filesize

          129B

          MD5

          fbb6382d7251edfc8e4cc832d60fe515

          SHA1

          8820a4187f6d798f6ae15ff834511a627edda754

          SHA256

          b9d225c9d60470eaced140aa408ac601bae8fc3a3fabbd806ed40d5df9ee49fd

          SHA512

          6929999b28fe748ffb4ee0aa56749c3e9c677df958221bdf9b99ffc575ca4061bc9a1d86f17db11a5ed5d27c87678d2a19cab789cb8edf584cfb461024cae85f

        • C:\ProgramData\196B.tmp

          Filesize

          14KB

          MD5

          294e9f64cb1642dd89229fff0592856b

          SHA1

          97b148c27f3da29ba7b18d6aee8a0db9102f47c9

          SHA256

          917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

          SHA512

          b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

        • C:\Users\Admin\AppData\Local\Temp\EEEEEEE

          Filesize

          147KB

          MD5

          04ce88e9c1138f84ba8ce1a05a382ae0

          SHA1

          1416918b9c139a6b416de27abbaa2fb03ae8d347

          SHA256

          bf0fce7a116cab827df13677469664a62b3aef805e53fa3332f33551a81cf269

          SHA512

          8581a7cfc2dc8137c7a2ddcac2f5977f4e295896bf69f9047dd92611dfa93a8d6c024a6fda97b301356eb53e46d09a70e906e28bf258c3447fbf9ced3bff7b4e

        • C:\Users\Admin\AppData\Local\Temp\{FAC6DD77-AF7A-4B6C-B3E3-EAD3E1E5C943}

          Filesize

          4KB

          MD5

          dc5bfc28960938b3119dd308a1e8daa5

          SHA1

          8334175f0f33fda8d3cf4513168b3c5dbe5aa1e0

          SHA256

          0925af33f8098242a0b3c5d611921f81f030a514d45b0d2cd3ef8e7c09275b05

          SHA512

          d6fa90a4d16c7642cbf64caa040ceb15cd22f03bee661a5511c45cf599d209355c0baef60aa487137bef807bdf0510604fb0df65999416f8920995d743a4cdb1

        • C:\Users\Admin\Documents\OneNote Notebooks\My Notebook\Open Notebook.onetoc2

          Filesize

          4KB

          MD5

          5814aad5cc19704a9da13e11605d12af

          SHA1

          00b1a92382e4171a3b007a0e518b4e18ad5da7a7

          SHA256

          6b0e91e7d436133c4b29d779e0c8e85a59e815c778e4dd4bf46662a3ac1b0972

          SHA512

          08a78200d736e7b84fbb7954216f026efc07fd1ac6899ccfecd0874fa1db021f95adb25cc796bd093254734f29c7f7576b3f34b24b0575beb1cfb44f7543c6fa

        • C:\xcEElHqGu.README.txt

          Filesize

          1KB

          MD5

          7fd2336a4cae4c2f51bb0860a6748860

          SHA1

          69ef22fd3afb86945d371d4be0fe9c507880dd1b

          SHA256

          413dd9df6327c861bd0ba99a1e99b2b00b75961230d8b499c993419da1ecca29

          SHA512

          8791bd4195522517edd5a05cec17473fb01bd9865d4f4ea9966ee105fc0dc9d720c56c84af278d3bb5b31915aba678b7786e086f4890ea138f2ff47f0288c523

        • F:\$RECYCLE.BIN\S-1-5-21-3808065738-1666277613-1125846146-1000\DDDDDDDDDDD

          Filesize

          129B

          MD5

          03c9a0b2bc31b6d5760ad8e6099afb97

          SHA1

          5328ee207bc2586518cb2af727c12cae056cab88

          SHA256

          b5f827027dc573782236d80bce651c42208f666d136211a4b064f3adacf7a3e9

          SHA512

          e3926a961e78528b71d43e1c7a3cfa97372c598f402a17cc6e0c697d0cbee828de45231a08cb272246d4d52382cc2998d65dfb34582a308125cff0a06ab1d531

        • memory/2324-2854-0x000000007FDE0000-0x000000007FDE1000-memory.dmp

          Filesize

          4KB

        • memory/2324-2855-0x000000007FE00000-0x000000007FE01000-memory.dmp

          Filesize

          4KB

        • memory/2324-2821-0x000000007FE40000-0x000000007FE41000-memory.dmp

          Filesize

          4KB

        • memory/2324-2822-0x00000000005A0000-0x00000000005B0000-memory.dmp

          Filesize

          64KB

        • memory/2324-2823-0x00000000005A0000-0x00000000005B0000-memory.dmp

          Filesize

          64KB

        • memory/2324-2824-0x000000007FE20000-0x000000007FE21000-memory.dmp

          Filesize

          4KB

        • memory/2324-2825-0x000000007FDC0000-0x000000007FDC1000-memory.dmp

          Filesize

          4KB

        • memory/3248-2763-0x0000000003230000-0x0000000003240000-memory.dmp

          Filesize

          64KB

        • memory/3248-2-0x0000000003230000-0x0000000003240000-memory.dmp

          Filesize

          64KB

        • memory/3248-0-0x0000000003230000-0x0000000003240000-memory.dmp

          Filesize

          64KB

        • memory/3248-2761-0x0000000003230000-0x0000000003240000-memory.dmp

          Filesize

          64KB

        • memory/3248-2762-0x0000000003230000-0x0000000003240000-memory.dmp

          Filesize

          64KB

        • memory/3248-1-0x0000000003230000-0x0000000003240000-memory.dmp

          Filesize

          64KB

        • memory/4296-2816-0x00007FFDD9650000-0x00007FFDD9845000-memory.dmp

          Filesize

          2.0MB

        • memory/4296-2815-0x00007FFDD9650000-0x00007FFDD9845000-memory.dmp

          Filesize

          2.0MB

        • memory/4296-2811-0x00007FFDD9650000-0x00007FFDD9845000-memory.dmp

          Filesize

          2.0MB

        • memory/4296-2809-0x00007FFDD9650000-0x00007FFDD9845000-memory.dmp

          Filesize

          2.0MB

        • memory/4296-2807-0x00007FFD996D0000-0x00007FFD996E0000-memory.dmp

          Filesize

          64KB

        • memory/4296-2808-0x00007FFD996D0000-0x00007FFD996E0000-memory.dmp

          Filesize

          64KB

        • memory/4296-2813-0x00007FFDD9650000-0x00007FFDD9845000-memory.dmp

          Filesize

          2.0MB

        • memory/4296-2856-0x00007FFD97220000-0x00007FFD97230000-memory.dmp

          Filesize

          64KB

        • memory/4296-2812-0x00007FFD996D0000-0x00007FFD996E0000-memory.dmp

          Filesize

          64KB

        • memory/4296-2857-0x00007FFD97220000-0x00007FFD97230000-memory.dmp

          Filesize

          64KB

        • memory/4296-2810-0x00007FFD996D0000-0x00007FFD996E0000-memory.dmp

          Filesize

          64KB

        • memory/4296-2814-0x00007FFD996D0000-0x00007FFD996E0000-memory.dmp

          Filesize

          64KB

        • memory/4296-2870-0x00007FFDD9650000-0x00007FFDD9845000-memory.dmp

          Filesize

          2.0MB

        • memory/4296-2871-0x00007FFDD9650000-0x00007FFDD9845000-memory.dmp

          Filesize

          2.0MB

        • memory/4296-2872-0x00007FFDD9650000-0x00007FFDD9845000-memory.dmp

          Filesize

          2.0MB