Analysis

  • max time kernel
    139s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/06/2024, 18:28

General

  • Target
    VirusShare_e5e83d8209a8e06089d70e65901b7481.exe
  • Size 328KB
  • Sample240607-w4cs6abh2x
  • SHA256 e37b974823a5def88d1b8857cbe4262ed60d59a7ef7b6854e407d6a2dc8cdc68
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Path
  • C:\Program Files\7-Zip\Lang\_ReCoVeRy_+cgeyu.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 RSA4096 More information about the encryption keys using RSA4096 can be found here: http://en.wikipedia.org/wiki/RSA_(cryptosystem) How did this happen ? !!! Specially for your PC was generated personal RSA4096 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://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/F9C62C89B917E6F 2 - http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/F9C62C89B917E6F 3 - http://yyre45dbvn2nhbefbmh.begumvelic.at/F9C62C89B917E6F 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/F9C62C89B917E6F 4 - Follow the instructions on the site IMPORTANT INFORMATION Your personal pages http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/F9C62C89B917E6F http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/F9C62C89B917E6F http://yyre45dbvn2nhbefbmh.begumvelic.at/F9C62C89B917E6F Your personal page Tor-Browser xlowfznrg4wf7dli.ONION/F9C62C89B917E6F
URLs
  • http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/F9C62C89B917E6F

  • http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/F9C62C89B917E6F

  • http://yyre45dbvn2nhbefbmh.begumvelic.at/F9C62C89B917E6F

  • http://xlowfznrg4wf7dli.ONION/F9C62C89B917E6F

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 (876) 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 1 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
  • 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 64 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
  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\VirusShare_e5e83d8209a8e06089d70e65901b7481.exe
    "C:\Users\Admin\AppData\Local\Temp\VirusShare_e5e83d8209a8e06089d70e65901b7481.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1640
    • C:\Windows\gnxdrngpxgqu.exe
      C:\Windows\gnxdrngpxgqu.exe
      2⤵
      • 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:628
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2324
      • C:\Windows\SysWOW64\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\_ReCoVeRy_.TXT
        3⤵
        • Opens file in notepad (likely ransom note)
        PID:220
      • 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
        3⤵
        • Enumerates system info in registry
        • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of WriteProcessMemory
        PID:8
        • 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,0x100,0x104,0xd8,0x108,0x7ffb570546f8,0x7ffb57054708,0x7ffb57054718
          4⤵
            PID:2584
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2104,3726729354297097085,1422498835502145863,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2116 /prefetch:2
            4⤵
              PID:4204
            • 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=2104,3726729354297097085,1422498835502145863,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2168 /prefetch:3
              4⤵
                PID:1948
              • 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=2104,3726729354297097085,1422498835502145863,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2700 /prefetch:8
                4⤵
                  PID:4144
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2104,3726729354297097085,1422498835502145863,131072 --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=3216 /prefetch:1
                  4⤵
                    PID:1304
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2104,3726729354297097085,1422498835502145863,131072 --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=3224 /prefetch:1
                    4⤵
                      PID:292
                    • 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=2104,3726729354297097085,1422498835502145863,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5204 /prefetch:8
                      4⤵
                        PID:640
                      • 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=2104,3726729354297097085,1422498835502145863,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5204 /prefetch:8
                        4⤵
                          PID:4476
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2104,3726729354297097085,1422498835502145863,131072 --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=4808 /prefetch:1
                          4⤵
                            PID:4868
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2104,3726729354297097085,1422498835502145863,131072 --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=4772 /prefetch:1
                            4⤵
                              PID:4492
                            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2104,3726729354297097085,1422498835502145863,131072 --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=4124 /prefetch:1
                              4⤵
                                PID:3660
                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2104,3726729354297097085,1422498835502145863,131072 --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=3264 /prefetch:1
                                4⤵
                                  PID:4696
                              • C:\Windows\System32\wbem\WMIC.exe
                                "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
                                3⤵
                                • Suspicious use of AdjustPrivilegeToken
                                PID:1980
                              • C:\Windows\SysWOW64\cmd.exe
                                "C:\Windows\system32\cmd.exe" /c DEL C:\Windows\GNXDRN~1.EXE
                                3⤵
                                  PID:3924
                              • C:\Windows\SysWOW64\cmd.exe
                                "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\VIRUSS~1.EXE
                                2⤵
                                  PID:2812
                              • C:\Windows\system32\vssvc.exe
                                C:\Windows\system32\vssvc.exe
                                1⤵
                                • Suspicious use of AdjustPrivilegeToken
                                PID:5084
                              • C:\Windows\System32\CompPkgSrv.exe
                                C:\Windows\System32\CompPkgSrv.exe -Embedding
                                1⤵
                                  PID:4864
                                • C:\Windows\System32\CompPkgSrv.exe
                                  C:\Windows\System32\CompPkgSrv.exe -Embedding
                                  1⤵
                                    PID:5072

                                  Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        _ReCoVeRy_+cgeyu.html

                                        • Path C:\Program Files\7-Zip\Lang\_ReCoVeRy_+cgeyu.html
                                        • Size 12KB
                                        • SHA256 9dbb898c47f546d03dd474b9b5eacd0e8a0fbee434c4be3f7d09a19839e7aad4
                                        • MD5 SHA1 SHA512 SSDEEP

                                        _ReCoVeRy_+cgeyu.png

                                        • Path C:\Program Files\7-Zip\Lang\_ReCoVeRy_+cgeyu.png
                                        • Size 64KB
                                        • SHA256 73c1e4eebf1a4e62313244085a243e5d7ceeb81f875b26e2b45c328efd7d345d
                                        • MD5 SHA1 SHA512 SSDEEP

                                        _ReCoVeRy_+cgeyu.txt

                                        • Path C:\Program Files\7-Zip\Lang\_ReCoVeRy_+cgeyu.txt
                                        • Size 1KB
                                        • SHA256 7e2644b9076774212f85eca8a2a7ffa875e5b7c0a4242aa7070112a875cddec8
                                        • MD5 SHA1 SHA512

                                        THIRDPARTYLICENSEREADME-JAVAFX.txt

                                        • Path C:\Program Files\Java\jre-1.8\THIRDPARTYLICENSEREADME-JAVAFX.txt
                                        • Size 560B
                                        • SHA256 6adf15d18b1251227507af1acf71491246ec5df7ec2ab41f89eb79447f270938
                                        • MD5 SHA1 SHA512

                                        THIRDPARTYLICENSEREADME.txt

                                        • Path C:\Program Files\Java\jre-1.8\THIRDPARTYLICENSEREADME.txt
                                        • Size 560B
                                        • SHA256 95467bbc34b37bddd9a179dfb2609f2d2059c18e2361bd33d91b55d3e78b12f9
                                        • MD5 SHA1 SHA512

                                        ClientSub2019_eula.txt

                                        • Path C:\Program Files\Microsoft Office\root\Office16\1033\ClientSub2019_eula.txt
                                        • Size 416B
                                        • SHA256 c6a80d26115e1d61b6578e10d9d44f242bb91c0b5bf99fc024473b9f2ec920cf
                                        • 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 9461bf4c758ed919cb6fde1d51a212a03c926e8998c8cd020251147210222f5e
                                        • MD5 SHA1 SHA512 SSDEEP

                                        Preferences

                                        • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
                                        • Size 6KB
                                        • SHA256 99d2564644fca6d1f855e5f2b8c5f42ec551c653bc530efd572f22bb11c54ddb
                                        • 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 cfd516903948617ad51b9a3f5aaa9ca9dcec6c76782d4889c40750c4a4c17dd3
                                        • MD5 SHA1 SHA512 SSDEEP

                                        AppCache133586088054759135.txt.mp3

                                        • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\DeviceSearchCache\AppCache133586088054759135.txt.mp3
                                        • Size 47KB
                                        • SHA256 ac7982dc3a68bd4e7e0ef392759094e8ffcab4b613300e35d499dfba85e5a2f2
                                        • MD5 SHA1 SHA512 SSDEEP

                                        AppCache133586111482109979.txt

                                        • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\DeviceSearchCache\AppCache133586111482109979.txt
                                        • Size 75KB
                                        • SHA256 ef4516bfe0c33e5b6c7f0228105b6fd2165f5f5c569cfb446fa3a14aa5a2694d
                                        • MD5 SHA1 SHA512 SSDEEP

                                        gnxdrngpxgqu.exe

                                        • Path C:\Windows\gnxdrngpxgqu.exe
                                        • Size 328KB
                                        • SHA256 e37b974823a5def88d1b8857cbe4262ed60d59a7ef7b6854e407d6a2dc8cdc68
                                        • MD5 SHA1 SHA512 SSDEEP

                                        memory/628-8568-0x0000000000400000-0x0000000000495000-memory.dmp

                                        memory/628-10387-0x0000000000400000-0x0000000000495000-memory.dmp

                                        memory/628-12-0x0000000000750000-0x00000000007D6000-memory.dmp

                                        memory/628-5116-0x0000000000400000-0x0000000000495000-memory.dmp

                                        memory/628-2409-0x0000000000400000-0x0000000000495000-memory.dmp

                                        memory/628-10431-0x0000000000400000-0x0000000000495000-memory.dmp

                                        memory/1640-0-0x0000000000400000-0x0000000000495000-memory.dmp

                                        memory/1640-3-0x0000000002110000-0x0000000002196000-memory.dmp

                                        memory/1640-14-0x0000000002110000-0x0000000002196000-memory.dmp

                                        memory/1640-13-0x0000000000400000-0x0000000000495000-memory.dmp