Analysis

  • max time kernel
    136s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/05/2024, 16:07

General

  • Target
    trkop.vbs
  • Size 4KB
  • Sample240524-tkp82abd7y
  • SHA256 101f060edf89f4362ee6657acc110f88d3140090fb676620049a2407b503b837
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 11 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 45 IoCs
  • Suspicious use of FindShellTrayWindow 25 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\trkop.vbs"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1168
    • C:\Users\Admin\AppData\Local\Temp\gpg.exe
      "C:\Users\Admin\AppData\Local\Temp\gpg.exe" --import C:\Users\Admin\AppData\Local\Temp\yin1abtn.cq124aqq
      2⤵
        PID:2084
      • C:\Users\Admin\AppData\Local\Temp\gpg.exe
        "C:\Users\Admin\AppData\Local\Temp\gpg.exe" -r y1688 --yes -q --no-verbose --trust-model always -o C:\Users\Admin\AppData\Local\Temp\BLKLOCK.KEY -e C:\Users\Admin\AppData\Local\Temp\rizot.doc
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:1916
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument C:\Users\Admin\AppData\Local\Temp\blklock_Help_decrypt.html
        2⤵
        • Enumerates system info in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of WriteProcessMemory
        PID:2424
        • 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=0xfc,0x100,0x104,0xd8,0x108,0x7ffcda1246f8,0x7ffcda124708,0x7ffcda124718
          3⤵
            PID:2076
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2140,12222699409402394575,3009261375236691001,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2152 /prefetch:2
            3⤵
              PID:3616
            • 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=2140,12222699409402394575,3009261375236691001,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2204 /prefetch:3
              3⤵
              • Suspicious behavior: EnumeratesProcesses
              PID:4112
            • 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=2140,12222699409402394575,3009261375236691001,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2748 /prefetch:8
              3⤵
                PID:936
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2140,12222699409402394575,3009261375236691001,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3228 /prefetch:1
                3⤵
                  PID:4692
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2140,12222699409402394575,3009261375236691001,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3248 /prefetch:1
                  3⤵
                    PID:436
                  • 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=2140,12222699409402394575,3009261375236691001,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5164 /prefetch:8
                    3⤵
                      PID:1152
                    • 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=2140,12222699409402394575,3009261375236691001,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5164 /prefetch:8
                      3⤵
                      • Suspicious behavior: EnumeratesProcesses
                      PID:5008
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2140,12222699409402394575,3009261375236691001,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4260 /prefetch:1
                      3⤵
                        PID:1352
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2140,12222699409402394575,3009261375236691001,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4256 /prefetch:1
                        3⤵
                          PID:1968
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2140,12222699409402394575,3009261375236691001,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3936 /prefetch:1
                          3⤵
                            PID:4180
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2140,12222699409402394575,3009261375236691001,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4172 /prefetch:1
                            3⤵
                              PID:2844
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2140,12222699409402394575,3009261375236691001,131072 --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=4318 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.19041.546 --gpu-preferences=UAAAAAAAAADoAAAQAAAAAAAAAAAAAAAAAABgAAAEAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1260 /prefetch:2
                              3⤵
                              • Suspicious behavior: EnumeratesProcesses
                              PID:4600
                          • C:\Windows\System32\wbem\WMIC.exe
                            "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
                            2⤵
                            • Suspicious use of AdjustPrivilegeToken
                            PID:2244
                          • C:\Windows\system32\cmd.exe
                            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\zapa.bat" "
                            2⤵
                              PID:1680
                          • C:\Windows\System32\CompPkgSrv.exe
                            C:\Windows\System32\CompPkgSrv.exe -Embedding
                            1⤵
                              PID:4524
                            • C:\Windows\System32\CompPkgSrv.exe
                              C:\Windows\System32\CompPkgSrv.exe -Embedding
                              1⤵
                                PID:1208
                              • C:\Windows\system32\vssvc.exe
                                C:\Windows\system32\vssvc.exe
                                1⤵
                                • Suspicious use of AdjustPrivilegeToken
                                PID:2336

                              Network

                                    MITRE ATT&CK Enterprise v15

                                    Replay Monitor

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                                    Downloads

                                    settings.dat

                                    • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                                    • Size 152B
                                    • SHA256 26764cedf35f118b55f30b3a36e0693f9f38290a5b2b6b8b83a00e990ae18513
                                    • MD5 SHA1 SHA512

                                    settings.dat

                                    • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                                    • Size 152B
                                    • SHA256 b4b69d099507d88abdeff4835e06cc6711e1c47464c963d013cef0a278e52d4f
                                    • MD5 SHA1 SHA512

                                    Preferences

                                    • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
                                    • Size 5KB
                                    • SHA256 0a411d62a61b3ac4c13469b92785df80804c7d404562c1ea55c822daa76b2572
                                    • MD5 SHA1 SHA512 SSDEEP

                                    Preferences

                                    • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
                                    • Size 6KB
                                    • SHA256 de74a7c320701081b267874922ab5a252ee1c5d3bc3f0e16acf1c0174dde742b
                                    • MD5 SHA1 SHA512 SSDEEP

                                    CURRENT

                                    • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT
                                    • Size 16B
                                    • SHA256 0861415cada612ea5834d56e2cf1055d3e63979b69eb71d32ae9ae394d8306cd
                                    • MD5 SHA1 SHA512

                                    Local State

                                    • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                                    • Size 11KB
                                    • SHA256 7d38f28c8500ef63ea04e1ac724f7808f95e9e8ece17b4a6346ff9d983d43ed7
                                    • MD5 SHA1 SHA512 SSDEEP

                                    BLKLOCK.KEY

                                    • Path C:\Users\Admin\AppData\Local\Temp\BLKLOCK.KEY
                                    • Size 363B
                                    • SHA256 16d2cd5c3bd66ac1e56c950c4ecf6a82bea582adb2a58c2e296d1e891814f071
                                    • MD5 SHA1 SHA512

                                    blklock_Help_decrypt.html

                                    • Path C:\Users\Admin\AppData\Local\Temp\blklock_Help_decrypt.html
                                    • Size 719B
                                    • SHA256 315bbddec308682ed567e96410ec6a78065ba5a986ea082b95d0091001e75026
                                    • MD5 SHA1 SHA512

                                    blklock_Help_decrypt.txt

                                    • Path C:\Users\Admin\AppData\Local\Temp\blklock_Help_decrypt.txt
                                    • Size 351B
                                    • SHA256 0fd72f68474bc84ce018a32cffc177b576001871295c2833528162626c402e4b
                                    • MD5 SHA1 SHA512

                                    rizot.doc

                                    • Path C:\Users\Admin\AppData\Local\Temp\rizot.doc
                                    • Size 22B
                                    • SHA256 a3d861d614c1fc049cbc9b1f52274533418a4bb0f684c9167226eaac533ee1bb
                                    • MD5 SHA1 SHA512

                                    rizot.doc

                                    • Path C:\Users\Admin\AppData\Local\Temp\rizot.doc
                                    • Size 87B
                                    • SHA256 c1ebe509542f5a3027feafe813474fb2ea8c6d8247c84554e7d8542337168c03
                                    • MD5 SHA1 SHA512

                                    pubring.kbx

                                    • Path C:\Users\Admin\AppData\Roaming\gnupg\pubring.kbx
                                    • Size 1KB
                                    • SHA256 48bbd0f4199ed901ae9f713556898831e6f0bfb52865d52ba58f977fdabafccd
                                    • MD5 SHA1 SHA512

                                    trustdb.gpg

                                    • Path C:\Users\Admin\AppData\Roaming\gnupg\trustdb.gpg
                                    • Size 1KB
                                    • SHA256 6130b0bbe9ccf41d2a0dbf72173c6c2b2ed4e9afa37fe3f811a1e221ba32282e
                                    • MD5 SHA1 SHA512

                                    memory/1916-25-0x0000000063080000-0x00000000630A0000-memory.dmp

                                    memory/1916-22-0x00000000655C0000-0x00000000656BA000-memory.dmp

                                    memory/1916-24-0x0000000066580000-0x000000006664C000-memory.dmp

                                    memory/1916-20-0x0000000000400000-0x0000000000519000-memory.dmp

                                    memory/1916-21-0x0000000065A80000-0x0000000065A99000-memory.dmp

                                    memory/1916-23-0x000000006B480000-0x000000006B4AF000-memory.dmp

                                    memory/2084-9-0x0000000000400000-0x0000000000519000-memory.dmp

                                    memory/2084-10-0x0000000065A80000-0x0000000065A99000-memory.dmp

                                    memory/2084-14-0x00000000655C0000-0x00000000656BA000-memory.dmp

                                    memory/2084-11-0x000000006B480000-0x000000006B4AF000-memory.dmp

                                    memory/2084-12-0x0000000066580000-0x000000006664C000-memory.dmp

                                    memory/2084-13-0x0000000063080000-0x00000000630A0000-memory.dmp