Analysis

  • max time kernel
    136s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/06/2024, 11:18

General

  • Target
    VirusShare_40707cdcd4220213b9ef2545043d6c99.exe
  • Size 388KB
  • Sample240610-ner8jshc95
  • SHA256 6f7c7b4f3bd9e6ce0dc0d4dd7662e35d8a2079dfe61b2febf2645b68fe11ee3f
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Path
  • C:\Program Files\7-Zip\Lang\Recovery+xayru.txt

  • teslacrypt

Ransom Note
  • NOT YOUR LANGUAGE? USE https://translate.google.com What happened to your files ? All of your files were protected by a strong encryption with RSA-4096. More information about the encryption keys using RSA-4096 can be found here: http://en.wikipedia.org/wiki/RSA_(cryptosystem) How did this happen ? !!! Specially for your PC was generated personal RSA-4096 KEY, both public and private. !!! ALL YOUR FILES were encrypted with the public key, which has been transferred to your computer via the Internet. !!! Decrypting of your files is only possible with the help of the private key and decrypt program , which is on our Secret Server What do I do ? So, there are two ways you can choose: wait for a miracle and get your price doubled, or start obtaining BITCOIN NOW! , and restore your data easy way. If You have really valuable data, you better not waste your time, because there is no other way to get your files, except make a payment. For more specific instructions, please visit your personal home page, there are a few different addresses pointing to your page below: 1. http://tt54rfdjhb34rfbnknaerg.milerteddy.com/8A3762341DD7EB3E 2. http://kkd47eh4hdjshb5t.angortra.at/8A3762341DD7EB3E 3. http://ytrest84y5i456hghadefdsd.pontogrot.com/8A3762341DD7EB3E If for some reasons the addresses are not available, follow these steps: 1. Download and install tor-browser: http://www.torproject.org/projects/torbrowser.html.en 2. After a successful installation, run the browser 3. Type in the address bar: xlowfznrg4wf7dli.onion/8A3762341DD7EB3E 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://tt54rfdjhb34rfbnknaerg.milerteddy.com/8A3762341DD7EB3E http://kkd47eh4hdjshb5t.angortra.at/8A3762341DD7EB3E http://ytrest84y5i456hghadefdsd.pontogrot.com/8A3762341DD7EB3E *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/8A3762341DD7EB3E
URLs
  • http://tt54rfdjhb34rfbnknaerg.milerteddy.com/8A3762341DD7EB3E

  • http://kkd47eh4hdjshb5t.angortra.at/8A3762341DD7EB3E

  • http://ytrest84y5i456hghadefdsd.pontogrot.com/8A3762341DD7EB3E

  • http://xlowfznrg4wf7dli.ONION/8A3762341DD7EB3E

Signatures

  • TeslaCrypt, AlphaCrypt

    Ransomware based on CryptoLocker. Shut down by the developers in 2016.

  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Renames multiple (890) files with added filename extension

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

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Drops startup file 6 IoCs
  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 1 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 44 IoCs
  • Suspicious use of FindShellTrayWindow 25 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\VirusShare_40707cdcd4220213b9ef2545043d6c99.exe
    "C:\Users\Admin\AppData\Local\Temp\VirusShare_40707cdcd4220213b9ef2545043d6c99.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4524
    • C:\Users\Admin\AppData\Local\Temp\VirusShare_40707cdcd4220213b9ef2545043d6c99.exe
      "C:\Users\Admin\AppData\Local\Temp\VirusShare_40707cdcd4220213b9ef2545043d6c99.exe"
      2⤵
      • Checks computer location settings
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4104
      • C:\Windows\fwsldpmiydoi.exe
        C:\Windows\fwsldpmiydoi.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4488
        • C:\Windows\fwsldpmiydoi.exe
          C:\Windows\fwsldpmiydoi.exe
          4⤵
          • Checks computer location settings
          • Drops startup file
          • Executes dropped EXE
          • Adds Run key to start application
          • Drops file in Program Files directory
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          • System policy modification
          PID:4028
          • C:\Windows\System32\wbem\WMIC.exe
            "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /noin teractive
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:4024
          • C:\Windows\SysWOW64\NOTEPAD.EXE
            "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\RECOVERY.TXT
            5⤵
            • Opens file in notepad (likely ransom note)
            PID:880
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument C:\Users\Admin\Desktop\RECOVERY.HTM
            5⤵
            • Enumerates system info in registry
            • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
            • Suspicious use of FindShellTrayWindow
            • Suspicious use of SendNotifyMessage
            • Suspicious use of WriteProcessMemory
            PID:4920
            • 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,0x100,0x104,0xd8,0x108,0x7ffcff8c46f8,0x7ffcff8c4708,0x7ffcff8c4718
              6⤵
                PID:3580
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2104,14075615409661810948,17701916675162624637,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2116 /prefetch:2
                6⤵
                  PID:3684
                • 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=2104,14075615409661810948,17701916675162624637,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2168 /prefetch:3
                  6⤵
                    PID:4472
                  • 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=2104,14075615409661810948,17701916675162624637,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2780 /prefetch:8
                    6⤵
                      PID:3012
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2104,14075615409661810948,17701916675162624637,131072 --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=3212 /prefetch:1
                      6⤵
                        PID:3972
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2104,14075615409661810948,17701916675162624637,131072 --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=3236 /prefetch:1
                        6⤵
                          PID:2264
                        • 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=2104,14075615409661810948,17701916675162624637,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5084 /prefetch:8
                          6⤵
                            PID:5004
                          • 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=2104,14075615409661810948,17701916675162624637,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5084 /prefetch:8
                            6⤵
                              PID:2104
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2104,14075615409661810948,17701916675162624637,131072 --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=5204 /prefetch:1
                              6⤵
                                PID:4184
                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2104,14075615409661810948,17701916675162624637,131072 --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=5220 /prefetch:1
                                6⤵
                                  PID:3408
                                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2104,14075615409661810948,17701916675162624637,131072 --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=5628 /prefetch:1
                                  6⤵
                                    PID:3844
                                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2104,14075615409661810948,17701916675162624637,131072 --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=5620 /prefetch:1
                                    6⤵
                                      PID:2996
                                  • C:\Windows\System32\wbem\WMIC.exe
                                    "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /noin teractive
                                    5⤵
                                    • Suspicious use of AdjustPrivilegeToken
                                    PID:1588
                                  • C:\Windows\SysWOW64\cmd.exe
                                    "C:\Windows\system32\cmd.exe" /c DEL C:\Windows\FWSLDP~1.EXE
                                    5⤵
                                      PID:1396
                                • C:\Windows\SysWOW64\cmd.exe
                                  "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\VIRUSS~1.EXE
                                  3⤵
                                    PID:4276
                              • C:\Windows\System32\CompPkgSrv.exe
                                C:\Windows\System32\CompPkgSrv.exe -Embedding
                                1⤵
                                  PID:2588
                                • C:\Windows\System32\CompPkgSrv.exe
                                  C:\Windows\System32\CompPkgSrv.exe -Embedding
                                  1⤵
                                    PID:3500

                                  Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        Recovery+xayru.html

                                        • Path C:\Program Files\7-Zip\Lang\Recovery+xayru.html
                                        • Size 9KB
                                        • SHA256 7bc2433518030332dd947f633dc310256e70b925c4da8bfb20ff2eb01d6bfc6b
                                        • MD5 SHA1 SHA512 SSDEEP

                                        Recovery+xayru.png

                                        • Path C:\Program Files\7-Zip\Lang\Recovery+xayru.png
                                        • Size 63KB
                                        • SHA256 f6c85acafe7f56b66409047d50eaf9060e51e2716e37665a7460f11ae4088b2c
                                        • MD5 SHA1 SHA512 SSDEEP

                                        Recovery+xayru.txt

                                        • Path C:\Program Files\7-Zip\Lang\Recovery+xayru.txt
                                        • Size 1KB
                                        • SHA256 4b15b48cf6f546cedc29028da4c7d1a6077edfd27a8f0b29226bfb223d85dba0
                                        • MD5 SHA1 SHA512

                                        THIRDPARTYLICENSEREADME-JAVAFX.txt

                                        • Path C:\Program Files\Java\jre-1.8\THIRDPARTYLICENSEREADME-JAVAFX.txt
                                        • Size 560B
                                        • SHA256 ed7e4a456a462a58643b84a04028d00befa2eb53a368e94f45d66b22ec4217dc
                                        • MD5 SHA1 SHA512

                                        THIRDPARTYLICENSEREADME.txt

                                        • Path C:\Program Files\Java\jre-1.8\THIRDPARTYLICENSEREADME.txt
                                        • Size 560B
                                        • SHA256 c1169b10ceed5cc2db63118ce56e7de79594d46c59a1d33918cd488c1c2ce5df
                                        • MD5 SHA1 SHA512

                                        ClientSub2019_eula.txt

                                        • Path C:\Program Files\Microsoft Office\root\Office16\1033\ClientSub2019_eula.txt
                                        • Size 416B
                                        • SHA256 89bb82bfdbfec5a678fb8a154d8c6595e86e69c9ad4ab64f5fded4ff8e224100
                                        • MD5 SHA1 SHA512

                                        settings.dat

                                        • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                                        • Size 152B
                                        • SHA256 a7abb51435909fa2d75c6f2ff5c69a93d4a0ab276ed579e7d8733b2a63ffbee6
                                        • MD5 SHA1 SHA512

                                        settings.dat

                                        • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                                        • Size 152B
                                        • SHA256 704dd4f98d8ca34ec421f23ba1891b178c23c14b3301e4655efc5c02d356c2bc
                                        • MD5 SHA1 SHA512

                                        Preferences

                                        • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
                                        • Size 5KB
                                        • SHA256 c5ed7e16ee10d4de49dd11afff3f0ef0bdee6aa3fb798ed8f225762953e432bb
                                        • MD5 SHA1 SHA512 SSDEEP

                                        Preferences

                                        • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
                                        • Size 6KB
                                        • SHA256 b362ed77d55df665112c160f4b67f3141be6b30300df32f3b5bab4f3c068288f
                                        • 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 10KB
                                        • SHA256 10ded07e30aedd8a28646be615cc0bb50a18fd7ea9ae8e5163e4b4fba368bd6a
                                        • MD5 SHA1 SHA512 SSDEEP

                                        AppCache133586088054759135.txt

                                        • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\DeviceSearchCache\AppCache133586088054759135.txt
                                        • Size 47KB
                                        • SHA256 c9b3d7561c0c1fcf191e869966afa716adc3db19e22f23752ef20785d95da05d
                                        • MD5 SHA1 SHA512 SSDEEP

                                        AppCache133586135347904641.txt

                                        • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\DeviceSearchCache\AppCache133586135347904641.txt
                                        • Size 75KB
                                        • SHA256 b47dbb25ff6da62660e786560b421bbec82df86823ca290ee617a801276e5352
                                        • MD5 SHA1 SHA512 SSDEEP

                                        fwsldpmiydoi.exe

                                        • Path C:\Windows\fwsldpmiydoi.exe
                                        • Size 388KB
                                        • SHA256 6f7c7b4f3bd9e6ce0dc0d4dd7662e35d8a2079dfe61b2febf2645b68fe11ee3f
                                        • MD5 SHA1 SHA512 SSDEEP

                                        memory/4028-17-0x0000000000400000-0x0000000000486000-memory.dmp

                                        memory/4028-8827-0x0000000000400000-0x0000000000486000-memory.dmp

                                        memory/4028-22-0x0000000000400000-0x0000000000486000-memory.dmp

                                        memory/4028-613-0x0000000000400000-0x0000000000486000-memory.dmp

                                        memory/4028-20-0x0000000000400000-0x0000000000486000-memory.dmp

                                        memory/4028-19-0x0000000000400000-0x0000000000486000-memory.dmp

                                        memory/4028-18-0x0000000000400000-0x0000000000486000-memory.dmp

                                        memory/4028-2759-0x0000000000400000-0x0000000000486000-memory.dmp

                                        memory/4028-5372-0x0000000000400000-0x0000000000486000-memory.dmp

                                        memory/4028-10477-0x0000000000400000-0x0000000000486000-memory.dmp

                                        memory/4028-10436-0x0000000000400000-0x0000000000486000-memory.dmp

                                        memory/4028-24-0x0000000000400000-0x0000000000486000-memory.dmp

                                        memory/4028-10426-0x0000000000400000-0x0000000000486000-memory.dmp

                                        memory/4028-10427-0x0000000000400000-0x0000000000486000-memory.dmp

                                        memory/4028-10435-0x0000000000400000-0x0000000000486000-memory.dmp

                                        memory/4104-12-0x0000000000400000-0x0000000000486000-memory.dmp

                                        memory/4104-6-0x0000000000400000-0x0000000000486000-memory.dmp

                                        memory/4104-5-0x0000000000400000-0x0000000000486000-memory.dmp

                                        memory/4104-3-0x0000000000400000-0x0000000000486000-memory.dmp

                                        memory/4104-2-0x0000000000400000-0x0000000000486000-memory.dmp

                                        memory/4488-14-0x0000000000400000-0x000000000085C000-memory.dmp

                                        memory/4524-4-0x0000000002650000-0x0000000002653000-memory.dmp

                                        memory/4524-0-0x0000000002650000-0x0000000002653000-memory.dmp

                                        memory/4524-1-0x0000000002650000-0x0000000002653000-memory.dmp