Analysis

  • max time kernel
    63s
  • max time network
    70s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/05/2023, 08:50

General

  • Target
    revosetup.exe
  • Size 6.6MB
  • Sample230525-krnjcahe3z
  • SHA256 d6d51e144c72adbcf595cbba251001059980cb576f22530e45c53d9f5a0a4dfb
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 2 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 53 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
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 12 IoCs
  • Suspicious use of SendNotifyMessage 7 IoCs
  • Suspicious use of SetWindowsHookEx 11 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\revosetup.exe
    "C:\Users\Admin\AppData\Local\Temp\revosetup.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4648
    • C:\Users\Admin\AppData\Local\Temp\is-28SLL.tmp\revosetup.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-28SLL.tmp\revosetup.tmp" /SL5="$A017E,6354921,266240,C:\Users\Admin\AppData\Local\Temp\revosetup.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2052
      • C:\Program Files\VS Revo Group\Revo Uninstaller\RevoUnin.exe
        "C:\Program Files\VS Revo Group\Revo Uninstaller\RevoUnin.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of SetWindowsHookEx
        PID:660
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://www.revouninstaller.com/free-install-thankyou/
        3⤵
        • Enumerates system info in registry
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:4424
        • 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=0xf8,0xfc,0x100,0xd4,0x104,0x7ffc9ca146f8,0x7ffc9ca14708,0x7ffc9ca14718
          4⤵
            PID:1752
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2096,12083303045570742002,12099721715747148889,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2176 /prefetch:2
            4⤵
              PID:2880
            • 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=2096,12083303045570742002,12099721715747148889,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2228 /prefetch:3
              4⤵
              • Suspicious behavior: EnumeratesProcesses
              PID:4664
            • 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=2096,12083303045570742002,12099721715747148889,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2740 /prefetch:8
              4⤵
                PID:3268
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2096,12083303045570742002,12099721715747148889,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3384 /prefetch:1
                4⤵
                  PID:744
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2096,12083303045570742002,12099721715747148889,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3292 /prefetch:1
                  4⤵
                    PID:1256
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2096,12083303045570742002,12099721715747148889,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=7 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4764 /prefetch:1
                    4⤵
                      PID:3208
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2096,12083303045570742002,12099721715747148889,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5420 /prefetch:1
                      4⤵
                        PID:3736
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=audio.mojom.AudioService --field-trial-handle=2096,12083303045570742002,12099721715747148889,131072 --lang=en-US --service-sandbox-type=audio --mojo-platform-channel-handle=5128 /prefetch:8
                        4⤵
                          PID:940
                  • C:\Windows\System32\CompPkgSrv.exe
                    C:\Windows\System32\CompPkgSrv.exe -Embedding
                    1⤵
                      PID:3256
                    • C:\Windows\system32\AUDIODG.EXE
                      C:\Windows\system32\AUDIODG.EXE 0x4b8 0x344
                      1⤵
                      • Suspicious use of AdjustPrivilegeToken
                      PID:3440

                    Network

                          MITRE ATT&CK Enterprise v6

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          RevoUnin.exe

                          • Path C:\Program Files\VS Revo Group\Revo Uninstaller\RevoUnin.exe
                          • Size 14.4MB
                          • SHA256 d44ef88619115183724e879883f883af5f8a15070647752c840a0eb4227c8c31
                          • MD5 SHA1 SHA512 SSDEEP

                          RevoUnin.exe

                          • Path C:\Program Files\VS Revo Group\Revo Uninstaller\RevoUnin.exe
                          • Size 14.4MB
                          • SHA256 d44ef88619115183724e879883f883af5f8a15070647752c840a0eb4227c8c31
                          • MD5 SHA1 SHA512 SSDEEP

                          RevoUnin.exe

                          • Path C:\Program Files\VS Revo Group\Revo Uninstaller\RevoUnin.exe
                          • Size 14.4MB
                          • SHA256 d44ef88619115183724e879883f883af5f8a15070647752c840a0eb4227c8c31
                          • MD5 SHA1 SHA512 SSDEEP

                          english.ini

                          • Path C:\Program Files\VS Revo Group\Revo Uninstaller\lang\english.ini
                          • Size 102KB
                          • SHA256 c3c6ead6650e8bb3f3fefb473cbb8af8a1439b91f59b416c16f28969f2d0e8ad
                          • MD5 SHA1 SHA512 SSDEEP

                          unins000.exe

                          • Path C:\Program Files\VS Revo Group\Revo Uninstaller\unins000.exe
                          • Size 1.3MB
                          • SHA256 ff41b93bfc3c910bbc7bb7d925debd4c680cbb87bbbca2f628d6d793bbbd5be2
                          • MD5 SHA1 SHA512 SSDEEP

                          settings.dat

                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                          • Size 152B
                          • SHA256 05e135dee0260b4f601a0486401b64ff8653875d74bf259c2da232550dbfb4f5
                          • MD5 SHA1 SHA512

                          settings.dat

                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                          • Size 152B
                          • SHA256 adaba08026551b1b8f6c120143686da79f916d02adbef4a8d1c184e32a19fd48
                          • MD5 SHA1 SHA512

                          the-real-index

                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Code Cache\js\index-dir\the-real-index
                          • Size 552B
                          • SHA256 c2ab3495c3b8f33c670e1536819cc6ba547a838b4b8d85725bc0107ac833679e
                          • MD5 SHA1 SHA512

                          the-real-index

                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Code Cache\js\index-dir\the-real-index
                          • Size 48B
                          • SHA256 71acbc576752bb81d4584d673367e5bc4d802276eb9e291a9a130f964e463fb8
                          • MD5 SHA1 SHA512

                          Edge Profile.ico

                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Edge Profile.ico
                          • Size 70KB
                          • SHA256 e23040951e464b53b84b11c3466bbd4707a009018819f9ad2a79d1b0b309bc25
                          • MD5 SHA1 SHA512 SSDEEP

                          MANIFEST-000001

                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Extension State\MANIFEST-000001
                          • Size 41B
                          • SHA256 f9d31b278e215eb0d0e9cd709edfa037e828f36214ab7906f612160fead4b2b4
                          • MD5 SHA1 SHA512

                          data_1

                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\GPUCache\data_1
                          • Size 264KB
                          • SHA256 b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec
                          • MD5 SHA1 SHA512 SSDEEP

                          Microsoft Edge.lnk

                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Microsoft Edge.lnk
                          • Size 2KB
                          • SHA256 4ffa17d804048ce81e6e4764e31b3bcd6ca4b9642efe309388e64c23b3b195f0
                          • MD5 SHA1 SHA512

                          Network Persistent State

                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network Persistent State
                          • Size 3KB
                          • SHA256 3b8cf6eee4d0a547f5db5be9e6f57aa2c36aeb40d1861ce743247fb250635c7f
                          • MD5 SHA1 SHA512

                          Preferences

                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
                          • Size 4KB
                          • SHA256 36b4f2c3a14383a76ff64dc08435aa613aa6363ede377eaf2966eee38e204108
                          • MD5 SHA1 SHA512 SSDEEP

                          Preferences

                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
                          • Size 7KB
                          • SHA256 14712a511f38bb99a94d5a9040069c455894b9f2e54e52a61914a0c4cf8a4b9c
                          • MD5 SHA1 SHA512 SSDEEP

                          Secure Preferences

                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Secure Preferences
                          • Size 24KB
                          • SHA256 460cddb95ea1d9bc8d95d295dd051b49a1436437a91ddec5f131235b2d516933
                          • MD5 SHA1 SHA512 SSDEEP

                          Secure Preferences

                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Secure Preferences
                          • Size 24KB
                          • SHA256 75b33a5790bf5207c8c095e6b80a1ce59ecc0f00fef12c9aff985216be6acec2
                          • MD5 SHA1 SHA512 SSDEEP

                          CURRENT

                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Session Storage\CURRENT
                          • Size 16B
                          • SHA256 0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443
                          • MD5 SHA1 SHA512

                          Local State

                          • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State
                          • Size 9KB
                          • SHA256 e030bb1e2d5a42b4923022daf2ea6de0c8b095d1a49f3a4129aa2170f4bc06f8
                          • MD5 SHA1 SHA512 SSDEEP

                          revosetup.tmp

                          • Path C:\Users\Admin\AppData\Local\Temp\is-28SLL.tmp\revosetup.tmp
                          • Size 1.3MB
                          • SHA256 ff41b93bfc3c910bbc7bb7d925debd4c680cbb87bbbca2f628d6d793bbbd5be2
                          • MD5 SHA1 SHA512 SSDEEP

                          revosetup.tmp

                          • Path C:\Users\Admin\AppData\Local\Temp\is-28SLL.tmp\revosetup.tmp
                          • Size 1.3MB
                          • SHA256 ff41b93bfc3c910bbc7bb7d925debd4c680cbb87bbbca2f628d6d793bbbd5be2
                          • MD5 SHA1 SHA512 SSDEEP

                          memory/2052-269-0x0000000000400000-0x0000000000551000-memory.dmp

                          memory/2052-265-0x0000000000400000-0x0000000000551000-memory.dmp

                          memory/2052-144-0x0000000000400000-0x0000000000551000-memory.dmp

                          memory/2052-142-0x0000000000710000-0x0000000000711000-memory.dmp

                          memory/2052-141-0x0000000000400000-0x0000000000551000-memory.dmp

                          memory/2052-138-0x0000000000710000-0x0000000000711000-memory.dmp

                          memory/4648-270-0x0000000000400000-0x000000000044B000-memory.dmp

                          memory/4648-133-0x0000000000400000-0x000000000044B000-memory.dmp

                          memory/4648-140-0x0000000000400000-0x000000000044B000-memory.dmp