Overview

overview

10

Static

static

2.이력�...�).exe

windows7-x64

10

2.이력�...�).exe

windows10-2004-x64

10

Analysis

  • max time kernel
    90s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/11/2022, 17:50

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General

  • Target
    2.이력서_221112(빠릿하게 일하는모습 모여드리겠습니다).exe
  • Size 1.5MB
  • Sample221116-weksgagb8x
  • SHA256 f6fbfa9fe38f69f8806d60072b7e8a9aceacf4a2b27095f7297f529ba986eab4
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
lockbitdiscoveryevasionpersistenceransomware

Malware Config

Extracted

Path

  • C:\odt\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: 2DCCD853D3686BAE502E71DAFD9F08B0
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
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
    ransomwareevasion
  • Modifies extensions of user files 2 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
    persistence
  • Drops file in System32 directory 1 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
    ransomware
  • Suspicious use of NtSetInformationThreadHideFromDebugger 16 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 44 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 47 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2.이력서_221112(빠릿하게 일하는모습 모여드리겠습니다).exe
    "C:\Users\Admin\AppData\Local\Temp\2.이력서_221112(빠릿하게 일하는모습 모여드리겠습니다).exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:4708
    • C:\Users\Admin\AppData\Local\Temp\2.이력서_221112(빠릿하게 일하는모습 모여드리겠습니다).exe
      ﮅ
      2⤵
      • Modifies extensions of user files
      • Checks computer location settings
      • Adds Run key to start application
      • 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:2180
      • 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
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3036
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:2056
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:4264
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:3644
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:2112
      • 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}
        3⤵
          PID:3024
        • 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\2.이력서_221112(빠릿하게 일하는모습 모여드리겠습니다).exe" & Del /f /q "C:\Users\Admin\AppData\Local\Temp\2.이력서_221112(빠릿하게 일하는모습 모여드리겠습니다).exe"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:4992
          • C:\Windows\SysWOW64\PING.EXE
            ping 127.0.0.7 -n 3
            4⤵
            • Runs ping.exe
            PID:1320
          • C:\Windows\SysWOW64\fsutil.exe
            fsutil file setZeroData offset=0 length=524288 "C:\Users\Admin\AppData\Local\Temp\2.이력서_221112(빠릿하게 일하는모습 모여드리겠습니다).exe"
            4⤵
              PID:3232
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4708 -s 956
          2⤵
          • Program crash
          PID:764
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4708 -ip 4708
        1⤵
          PID:532
        • C:\Windows\system32\vssvc.exe
          C:\Windows\system32\vssvc.exe
          1⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:4008

        Network

              MITRE ATT&CK Enterprise v6

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              Downloads

              System.dll
              • Path C:\Users\Admin\AppData\Local\Temp\nsi69EB.tmp\System.dll
              • Size 12KB
              • SHA256 8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8
              • MD5 SHA1 SHA512 SSDEEP
              Submit Download

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

              memory/2180-134-0x0000000000401000-0x00000000004E1000-memory.dmp
              Download

              memory/2180-135-0x00000000004FA000-0x00000000004FB000-memory.dmp
              Download

              memory/2180-136-0x00000000004FA000-0x00000000004FB000-memory.dmp
              Download

              memory/2180-137-0x0000000000400000-0x00000000004FB000-memory.dmp
              Download

              memory/2180-147-0x0000000000400000-0x00000000004FB000-memory.dmp
              Download

              memory/2180-143-0x0000000000400000-0x00000000004FB000-memory.dmp
              Download