Analysis

  • max time kernel
    125s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/02/2024, 14:35

General

  • Target
    Voice.ai-Downloader-alphaver-9b69c1da713349ccb07cbe0431d0c911.exe
  • Size 476KB
  • Sample240224-ryb78afc6v
  • SHA256 23ecba0be777d9b7a5683d0939d9ae17c4427c46e51ff959e91785d83c60efd1
  • MD5 SHA1 SHA512 SSDEEP
Score
8/10

Malware Config

Signatures

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 12 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • NSIS installer 4 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 55 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of WriteProcessMemory 12 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\Voice.ai-Downloader-alphaver-9b69c1da713349ccb07cbe0431d0c911.exe
    "C:\Users\Admin\AppData\Local\Temp\Voice.ai-Downloader-alphaver-9b69c1da713349ccb07cbe0431d0c911.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:776
    • C:\Program Files\Voice.ai\VoiceAI-Installer.exe
      "C:\Program Files\Voice.ai\VoiceAI-Installer.exe" /path "C:\Program Files\Voice.ai"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:924
      • C:\Program Files\Voice.ai\tools\vc2019.exe
        "C:\Program Files\Voice.ai\tools\vc2019.exe" /q /norestart
        3⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:3796
        • C:\Windows\Temp\{7ECB4033-EA17-46F0-A510-1AEAB77B5D4A}\.cr\vc2019.exe
          "C:\Windows\Temp\{7ECB4033-EA17-46F0-A510-1AEAB77B5D4A}\.cr\vc2019.exe" -burn.clean.room="C:\Program Files\Voice.ai\tools\vc2019.exe" -burn.filehandle.attached=692 -burn.filehandle.self=696 /q /norestart
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:968
          • C:\Windows\Temp\{AFAE14E5-45E0-41A9-A78B-48054BEDF7E5}\.be\VC_redist.x64.exe
            "C:\Windows\Temp\{AFAE14E5-45E0-41A9-A78B-48054BEDF7E5}\.be\VC_redist.x64.exe" -q -burn.elevated BurnPipe.{2BA4B533-B069-4B42-9AEE-B2953BB11970} {232185D4-8F0A-4780-AD8C-35095CC4D867} 968
            5⤵
            • Executes dropped EXE
            PID:1592
            • C:\ProgramData\Package Cache\{57a73df6-4ba9-4c1d-bbbb-517289ff6c13}\VC_redist.x64.exe
              "C:\ProgramData\Package Cache\{57a73df6-4ba9-4c1d-bbbb-517289ff6c13}\VC_redist.x64.exe" -uninstall -quiet -burn.related.upgrade -burn.ancestors={2aaf1df0-eb13-4099-9992-962bb4e596d1} -burn.filehandle.self=1124 -burn.embedded BurnPipe.{01B670CB-DA1F-4DD5-BD51-62E95931054E} {9FF85AEF-5670-4E2D-89D4-C6DADF34FF58} 1592
              6⤵
                PID:4724
                • C:\ProgramData\Package Cache\{57a73df6-4ba9-4c1d-bbbb-517289ff6c13}\VC_redist.x64.exe
                  "C:\ProgramData\Package Cache\{57a73df6-4ba9-4c1d-bbbb-517289ff6c13}\VC_redist.x64.exe" -burn.clean.room="C:\ProgramData\Package Cache\{57a73df6-4ba9-4c1d-bbbb-517289ff6c13}\VC_redist.x64.exe" -burn.filehandle.attached=516 -burn.filehandle.self=536 -uninstall -quiet -burn.related.upgrade -burn.ancestors={2aaf1df0-eb13-4099-9992-962bb4e596d1} -burn.filehandle.self=1124 -burn.embedded BurnPipe.{01B670CB-DA1F-4DD5-BD51-62E95931054E} {9FF85AEF-5670-4E2D-89D4-C6DADF34FF58} 1592
                  7⤵
                    PID:4800
                    • C:\ProgramData\Package Cache\{57a73df6-4ba9-4c1d-bbbb-517289ff6c13}\VC_redist.x64.exe
                      "C:\ProgramData\Package Cache\{57a73df6-4ba9-4c1d-bbbb-517289ff6c13}\VC_redist.x64.exe" -q -burn.elevated BurnPipe.{D6452426-55DD-40DF-B951-104497262315} {6DE66216-9AFF-4561-822B-F8818070152E} 4800
                      8⤵
                        PID:2260
        • C:\Windows\system32\taskmgr.exe
          "C:\Windows\system32\taskmgr.exe" /4
          1⤵
          • Checks SCSI registry key(s)
          • Checks processor information in registry
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          PID:4704
        • C:\Windows\System32\rundll32.exe
          C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
          1⤵
            PID:404
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:3556
          • C:\Windows\System32\svchost.exe
            C:\Windows\System32\svchost.exe -k UnistackSvcGroup
            1⤵
              PID:4388
            • C:\Windows\system32\srtasks.exe
              C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
              1⤵
                PID:3168
              • C:\Windows\system32\msiexec.exe
                C:\Windows\system32\msiexec.exe /V
                1⤵
                  PID:2736

                Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      e597059.rbs

                      • Path C:\Config.Msi\e597059.rbs
                      • Size 19KB
                      • SHA256 fee132fc193d214dd1453e93576a7d440ff27e6dc5cc0ae28946a10fc08da3df
                      • MD5 SHA1 SHA512 SSDEEP

                      e597065.rbs

                      • Path C:\Config.Msi\e597065.rbs
                      • Size 19KB
                      • SHA256 0f3a56060ba47252899ec32987e2703be17b6b48db410dbab3929e63cb0dbe4d
                      • MD5 SHA1 SHA512 SSDEEP

                      e59706c.rbs

                      • Path C:\Config.Msi\e59706c.rbs
                      • Size 21KB
                      • SHA256 84322e00ca916ed8e1094dde946d818d4a35448d1e11657ad2bc053f38319e05
                      • MD5 SHA1 SHA512 SSDEEP

                      e59707b.rbs

                      • Path C:\Config.Msi\e59707b.rbs
                      • Size 21KB
                      • SHA256 8b7a6ebe5108d4a4069c2ee30cc1813a9a3c85eeca557c83d9d1cc0af9c886eb
                      • MD5 SHA1 SHA512 SSDEEP

                      VoiceAI-Installer.exe

                      • Path C:\Program Files\Voice.ai\VoiceAI-Installer.exe
                      • Size 16.9MB
                      • SHA256 d1b589b6bfa79daee66b65bae2989d9a580161ed78e909683a795385c0da75fb
                      • MD5 SHA1 SHA512 SSDEEP

                      VoiceAI-Installer.exe

                      • Path C:\Program Files\Voice.ai\VoiceAI-Installer.exe
                      • Size 17.4MB
                      • SHA256 27993bbf879ab77275301b5240ca266c138de33de094eb9f1cc763116d778cb9
                      • MD5 SHA1 SHA512 SSDEEP

                      meta

                      • Path C:\Program Files\Voice.ai\meta
                      • Size 65B
                      • SHA256 986b736d7a1b4c5e21b66c4bd5a5aca34e1f1a382fe07f550e49ab3ad1763a83
                      • MD5 SHA1 SHA512

                      vc2019.exe

                      • Path C:\Program Files\Voice.ai\tools\vc2019.exe
                      • Size 4.1MB
                      • SHA256 701a1f9d4d44dac80338c9e55d01b3855786abf2c7cdebc173d1d11c5ac19ecc
                      • MD5 SHA1 SHA512 SSDEEP

                      vc2019.exe

                      • Path C:\Program Files\Voice.ai\tools\vc2019.exe
                      • Size 4.3MB
                      • SHA256 e32ce16a9f6212f9f4d7e5ce5f0d12282631ffe38533a27bd9504231dbbba0d9
                      • MD5 SHA1 SHA512 SSDEEP

                      24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

                      • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
                      • Size 1KB
                      • SHA256 64b7ec2ba62b8c6d7ce3e103ab4c7c91006d070bf0f3678c1b595756d93a31b4
                      • MD5 SHA1 SHA512

                      CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

                      • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
                      • Size 724B
                      • SHA256 58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5
                      • MD5 SHA1 SHA512

                      24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

                      • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
                      • Size 410B
                      • SHA256 87e6529701e17c77e757a7814deb1b7db16156bc8f848e4cc060d21e0c6940b9
                      • MD5 SHA1 SHA512

                      CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

                      • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
                      • Size 392B
                      • SHA256 4f0dcf804119198e567652b203a3045c469fd3188c5d4a9f38a2ce0a3440ee10
                      • MD5 SHA1 SHA512

                      user-event[1].json

                      • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\9IZAIS87\user-event[1].json
                      • Size 16B
                      • SHA256 c955e57777ec0d73639dca6748560d00aa5eb8e12f13ebb2ed9656add3908f97
                      • MD5 SHA1 SHA512

                      dd_vcredist_amd64_20240224143808_000_vcRuntimeMinimum_x64.log

                      • Path C:\Users\Admin\AppData\Local\Temp\dd_vcredist_amd64_20240224143808_000_vcRuntimeMinimum_x64.log
                      • Size 2KB
                      • SHA256 101e98ff6c52701d069fecc7de8f2cccdbe0c65b0a47a77873cb48f7903ae06e
                      • MD5 SHA1 SHA512

                      dd_vcredist_amd64_20240224143808_001_vcRuntimeAdditional_x64.log

                      • Path C:\Users\Admin\AppData\Local\Temp\dd_vcredist_amd64_20240224143808_001_vcRuntimeAdditional_x64.log
                      • Size 2KB
                      • SHA256 c491c08f8e4d0e6d00e9852c460a1139b6947a4889b05ee45bee45dd20e0313b
                      • MD5 SHA1 SHA512

                      INetC.dll

                      • Path C:\Users\Admin\AppData\Local\Temp\nsy3653.tmp\INetC.dll
                      • Size 21KB
                      • SHA256 2d5d89025911e2e273f90f393624be4819641dbee1606de792362e442e54612f
                      • MD5 SHA1 SHA512 SSDEEP

                      System.dll

                      • Path C:\Users\Admin\AppData\Local\Temp\nsy3653.tmp\System.dll
                      • Size 12KB
                      • SHA256 c7a20bcaa0197aedddc8e4797bbb33fdf70d980f5e83c203d148121c2106d917
                      • MD5 SHA1 SHA512 SSDEEP

                      nsProcess.dll

                      • Path C:\Users\Admin\AppData\Local\Temp\nsy3653.tmp\nsProcess.dll
                      • Size 4KB
                      • SHA256 95fe9d92512ff2318cc2520311ef9145b2cee01209ab0e1b6e45c7ce1d4d0e89
                      • MD5 SHA1 SHA512

                      vc2019.exe

                      • Path C:\Windows\Temp\{7ECB4033-EA17-46F0-A510-1AEAB77B5D4A}\.cr\vc2019.exe
                      • Size 635KB
                      • SHA256 21503f265452414f3960b33ba000ab2cbe0a335901e3a585b0935ac4806fdd79
                      • MD5 SHA1 SHA512 SSDEEP

                      logo.png

                      • Path C:\Windows\Temp\{AFAE14E5-45E0-41A9-A78B-48054BEDF7E5}\.ba\logo.png
                      • Size 1KB
                      • SHA256 335a256d4779ec5dcf283d007fb56fd8211bbcaf47dcd70fe60ded6a112744ef
                      • MD5 SHA1 SHA512

                      wixstdba.dll

                      • Path C:\Windows\Temp\{AFAE14E5-45E0-41A9-A78B-48054BEDF7E5}\.ba\wixstdba.dll
                      • Size 191KB
                      • SHA256 a4efbdb2ce55788ffe92a244cb775efd475526ef5b61ad78de2bcdfaddac7041
                      • MD5 SHA1 SHA512 SSDEEP

                      cab2C04DDC374BD96EB5C8EB8208F2C7C92

                      • Path C:\Windows\Temp\{AFAE14E5-45E0-41A9-A78B-48054BEDF7E5}\cab2C04DDC374BD96EB5C8EB8208F2C7C92
                      • Size 1.7MB
                      • SHA256 2b3a171d1a0495ca376d798533a66e1ac8ce28f27199e98d8e14a42e70f9d459
                      • MD5 SHA1 SHA512 SSDEEP

                      cab5046A8AB272BF37297BB7928664C9503

                      • Path C:\Windows\Temp\{AFAE14E5-45E0-41A9-A78B-48054BEDF7E5}\cab5046A8AB272BF37297BB7928664C9503
                      • Size 879KB
                      • SHA256 c80addc870825e9a1aa9281e105e583973ec2846bbd74f1e97cb60911ba7a2e1
                      • MD5 SHA1 SHA512 SSDEEP

                      vcRuntimeAdditional_x64

                      • Path C:\Windows\Temp\{AFAE14E5-45E0-41A9-A78B-48054BEDF7E5}\vcRuntimeAdditional_x64
                      • Size 180KB
                      • SHA256 f8745f3523ea73806d591fa4e666e86c30c7e5240a07211a0c11a7633d16c4f0
                      • MD5 SHA1 SHA512 SSDEEP

                      vcRuntimeMinimum_x64

                      • Path C:\Windows\Temp\{AFAE14E5-45E0-41A9-A78B-48054BEDF7E5}\vcRuntimeMinimum_x64
                      • Size 180KB
                      • SHA256 5d0416e45819d555ad27e5efc1aeeb465cbb8e2937b3221852bea0f7d9c3a954
                      • MD5 SHA1 SHA512 SSDEEP

                      memory/4388-294-0x000001ACB79E0000-0x000001ACB79E1000-memory.dmp

                      memory/4388-325-0x000001ACB7740000-0x000001ACB7741000-memory.dmp

                      memory/4388-295-0x000001ACB79E0000-0x000001ACB79E1000-memory.dmp

                      memory/4388-296-0x000001ACB79E0000-0x000001ACB79E1000-memory.dmp

                      memory/4388-297-0x000001ACB79E0000-0x000001ACB79E1000-memory.dmp

                      memory/4388-298-0x000001ACB79E0000-0x000001ACB79E1000-memory.dmp

                      memory/4388-299-0x000001ACB79E0000-0x000001ACB79E1000-memory.dmp

                      memory/4388-300-0x000001ACB79E0000-0x000001ACB79E1000-memory.dmp

                      memory/4388-301-0x000001ACB79E0000-0x000001ACB79E1000-memory.dmp

                      memory/4388-302-0x000001ACB7600000-0x000001ACB7601000-memory.dmp

                      memory/4388-303-0x000001ACB75F0000-0x000001ACB75F1000-memory.dmp

                      memory/4388-305-0x000001ACB7600000-0x000001ACB7601000-memory.dmp

                      memory/4388-308-0x000001ACB75F0000-0x000001ACB75F1000-memory.dmp

                      memory/4388-311-0x000001ACAEDF0000-0x000001ACAEDF1000-memory.dmp

                      memory/4388-323-0x000001ACB7730000-0x000001ACB7731000-memory.dmp

                      memory/4388-293-0x000001ACB79E0000-0x000001ACB79E1000-memory.dmp

                      memory/4388-326-0x000001ACB7740000-0x000001ACB7741000-memory.dmp

                      memory/4388-327-0x000001ACB7850000-0x000001ACB7851000-memory.dmp

                      memory/4388-292-0x000001ACB79E0000-0x000001ACB79E1000-memory.dmp

                      memory/4388-291-0x000001ACB79B0000-0x000001ACB79B1000-memory.dmp

                      memory/4388-275-0x000001ACAF440000-0x000001ACAF450000-memory.dmp

                      memory/4388-259-0x000001ACAF340000-0x000001ACAF350000-memory.dmp

                      memory/4704-47-0x0000023CB57C0000-0x0000023CB57C1000-memory.dmp

                      memory/4704-46-0x0000023CB57C0000-0x0000023CB57C1000-memory.dmp

                      memory/4704-45-0x0000023CB57C0000-0x0000023CB57C1000-memory.dmp

                      memory/4704-41-0x0000023CB57C0000-0x0000023CB57C1000-memory.dmp

                      memory/4704-40-0x0000023CB57C0000-0x0000023CB57C1000-memory.dmp

                      memory/4704-39-0x0000023CB57C0000-0x0000023CB57C1000-memory.dmp

                      memory/4704-48-0x0000023CB57C0000-0x0000023CB57C1000-memory.dmp

                      memory/4704-49-0x0000023CB57C0000-0x0000023CB57C1000-memory.dmp

                      memory/4704-50-0x0000023CB57C0000-0x0000023CB57C1000-memory.dmp

                      memory/4704-51-0x0000023CB57C0000-0x0000023CB57C1000-memory.dmp