Analysis

  • max time kernel
    151s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    04-06-2022 03:37

General

  • Target

    117da274f4076bdd7f3aa6e6b1d96c44100ccaef59194202fc166ee5f4be78b2.exe

  • Size

    654KB

  • MD5

    0b40a2fff66d3c7f728b2d0e9ae861a6

  • SHA1

    91f89d87f92ba4f96d16a96c35e56e039adf6979

  • SHA256

    117da274f4076bdd7f3aa6e6b1d96c44100ccaef59194202fc166ee5f4be78b2

  • SHA512

    dec02943bb4dfae04c0fcce7cb644aa60277f33cd4747270b4a2d3feb5ca53cf6a5d037eb618bc4c27e3ea266089a2fa8b0ae1fb68f9180fb9b4a15522834c5a

Malware Config

Signatures

  • Locky (Lukitus variant)

    Variant of the Locky ransomware seen in the wild since late 2017.

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Modifies extensions of user files 1 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Interacts with shadow copies 2 TTPs 1 IoCs

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

  • Modifies Control Panel 2 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\117da274f4076bdd7f3aa6e6b1d96c44100ccaef59194202fc166ee5f4be78b2.exe
    "C:\Users\Admin\AppData\Local\Temp\117da274f4076bdd7f3aa6e6b1d96c44100ccaef59194202fc166ee5f4be78b2.exe"
    1⤵
    • Modifies extensions of user files
    • Adds Run key to start application
    • Sets desktop wallpaper using registry
    • Modifies Control Panel
    • Suspicious use of WriteProcessMemory
    PID:5084
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument C:\Users\Admin\Desktop\lukitus.htm
      2⤵
      • Adds Run key to start application
      • Enumerates system info in registry
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3360
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0x108,0x10c,0x110,0xe4,0x114,0x7ffa589846f8,0x7ffa58984708,0x7ffa58984718
        3⤵
          PID:4944
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2132,901637458303900619,12457391557403740544,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2144 /prefetch:2
          3⤵
            PID:4324
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=2132,901637458303900619,12457391557403740544,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2196 /prefetch:3
            3⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:4628
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=2132,901637458303900619,12457391557403740544,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2672 /prefetch:8
            3⤵
              PID:2680
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2132,901637458303900619,12457391557403740544,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3248 /prefetch:1
              3⤵
                PID:2096
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2132,901637458303900619,12457391557403740544,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3332 /prefetch:1
                3⤵
                  PID:2672
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=2132,901637458303900619,12457391557403740544,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5176 /prefetch:8
                  3⤵
                    PID:1444
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=2132,901637458303900619,12457391557403740544,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5352 /prefetch:8
                    3⤵
                      PID:884
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2132,901637458303900619,12457391557403740544,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5508 /prefetch:1
                      3⤵
                        PID:2288
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2132,901637458303900619,12457391557403740544,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5544 /prefetch:1
                        3⤵
                          PID:1440
                        • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2132,901637458303900619,12457391557403740544,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=6136 /prefetch:8
                          3⤵
                            PID:4268
                          • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe" --configure-user-settings --verbose-logging --system-level --msedge --force-configure-user-settings
                            3⤵
                            • Drops file in Program Files directory
                            PID:2700
                            • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe" --type=crashpad-handler /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Windows\TEMP\MsEdgeCrashpad --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0x220,0x224,0x228,0x1fc,0x22c,0x7ff7f4075460,0x7ff7f4075470,0x7ff7f4075480
                              4⤵
                                PID:3088
                            • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2132,901637458303900619,12457391557403740544,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=6136 /prefetch:8
                              3⤵
                              • Suspicious behavior: EnumeratesProcesses
                              PID:4420
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --field-trial-handle=2132,901637458303900619,12457391557403740544,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2388 /prefetch:8
                              3⤵
                                PID:3908
                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --field-trial-handle=2132,901637458303900619,12457391557403740544,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2416 /prefetch:8
                                3⤵
                                  PID:1560
                              • C:\Windows\SysWOW64\cmd.exe
                                cmd.exe /C del /Q /F "C:\Users\Admin\AppData\Local\Temp\117da274f4076bdd7f3aa6e6b1d96c44100ccaef59194202fc166ee5f4be78b2.exe"
                                2⤵
                                  PID:3252
                              • C:\Windows\system32\vssvc.exe
                                C:\Windows\system32\vssvc.exe
                                1⤵
                                • Suspicious use of AdjustPrivilegeToken
                                PID:1260
                              • C:\Windows\system32\vssadmin.exe
                                C:\Windows\system32\vssadmin.exe Delete Shadows /Quiet /All
                                1⤵
                                • Interacts with shadow copies
                                PID:4808
                              • C:\Windows\System32\CompPkgSrv.exe
                                C:\Windows\System32\CompPkgSrv.exe -Embedding
                                1⤵
                                  PID:4600

                                Network

                                MITRE ATT&CK Matrix ATT&CK v6

                                Persistence

                                Registry Run Keys / Startup Folder

                                1
                                T1060

                                Defense Evasion

                                File Deletion

                                2
                                T1107

                                Modify Registry

                                2
                                T1112

                                Discovery

                                System Information Discovery

                                2
                                T1082

                                Query Registry

                                1
                                T1012

                                Impact

                                Inhibit System Recovery

                                2
                                T1490

                                Defacement

                                1
                                T1491

                                Replay Monitor

                                Loading Replay Monitor...

                                Downloads

                                • C:\Users\Admin\Desktop\lukitus.htm
                                  Filesize

                                  8KB

                                  MD5

                                  3a2f3a42a633e42eaf137339b3dbe086

                                  SHA1

                                  a330b28bf9ed2b87cfec9783d06bda974bf83daf

                                  SHA256

                                  b049e4f09fa91379566f2a66dbb8f1cc870e6f0e0c174b2496829bc179c1d749

                                  SHA512

                                  9fff64009b4e33845eec479d3665e5b1b5125c058dae21b8cd08e872228d8523e3bbfe0a829f7100582a64e4a02e56dd391dbd0536a48e41c51e59a0c82fd7ad

                                • \??\pipe\LOCAL\crashpad_3360_QYMSFFPKBTUGXXWU
                                  MD5

                                  d41d8cd98f00b204e9800998ecf8427e

                                  SHA1

                                  da39a3ee5e6b4b0d3255bfef95601890afd80709

                                  SHA256

                                  e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                                  SHA512

                                  cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                                • memory/884-152-0x0000000000000000-mapping.dmp
                                • memory/1440-156-0x0000000000000000-mapping.dmp
                                • memory/1444-150-0x0000000000000000-mapping.dmp
                                • memory/1560-163-0x0000000000000000-mapping.dmp
                                • memory/2096-144-0x0000000000000000-mapping.dmp
                                • memory/2288-154-0x0000000000000000-mapping.dmp
                                • memory/2672-147-0x0000000000000000-mapping.dmp
                                • memory/2680-142-0x0000000000000000-mapping.dmp
                                • memory/2700-157-0x0000000000000000-mapping.dmp
                                • memory/3088-158-0x0000000000000000-mapping.dmp
                                • memory/3252-136-0x0000000000000000-mapping.dmp
                                • memory/3360-135-0x0000000000000000-mapping.dmp
                                • memory/3908-161-0x0000000000000000-mapping.dmp
                                • memory/4324-139-0x0000000000000000-mapping.dmp
                                • memory/4420-159-0x0000000000000000-mapping.dmp
                                • memory/4628-140-0x0000000000000000-mapping.dmp
                                • memory/4944-137-0x0000000000000000-mapping.dmp
                                • memory/5084-133-0x0000000000400000-0x00000000004A6000-memory.dmp
                                  Filesize

                                  664KB

                                • memory/5084-134-0x0000000000400000-0x00000000004A6000-memory.dmp
                                  Filesize

                                  664KB