Overview

overview

10

Static

static

1

URLScan

urlscan

1

https://app.box.com/...

windows10-2004-x64

10

https://app.box.com/...

android-10-x64

1

Analysis

  • user interaction
    yes
  • max time kernel
    149s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    27/07/2026, 14:28

Sharing

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Report Analysis Logs

General

  • Target
    https://app.box.com/index.php?rm=box_download_shared_file&shared_name=rxisohig27fdlesuhv3j52gnofr7rjfw&file_id=f_2324178800695
  • Sample260727-rtahtsbe57
Score
10/10
backdoordiscoveryvalleyrat_s2

Malware Config

Extracted

Family

  • valleyrat_s2

Version

  • 1.0

C2

  • 45.203.220.93:8886

  • 45.203.220.93:6668

  • 45.203.220.93:80

Attributes
  • campaign_date

    2026. 6.30

Signatures

  • Family: ValleyRat

    ValleyRat stage2 is a backdoor written in C++.

    backdoorvalleyrat_s2
  • Detects ValleyRAT payload 7 IoCs
  • Enumerates connected drives 3 TTPs 22 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Network Share Discovery 1 TTPs

    Attempt to gather information on host network.

    discovery
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

    discovery
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • System Time Discovery 1 TTPs 1 IoCs

    Adversary may gather the system time and/or time zone settings from a local or remote system.

    discovery
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Modifies registry class 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 49 IoCs
  • Suspicious use of SendNotifyMessage 32 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --disable-background-networking --disable-component-update --simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT' --single-argument https://app.box.com/index.php?rm=box_download_shared_file&shared_name=rxisohig27fdlesuhv3j52gnofr7rjfw&file_id=f_2324178800695
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:4804
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=140.0.7339.81 --initial-client-data=0xf8,0xfc,0x100,0xd4,0x104,0x7ffbbd51c728,0x7ffbbd51c734,0x7ffbbd51c740
      2⤵
        PID:892
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --no-pre-read-main-dll --force-high-res-timeticks=disabled --gpu-preferences=SAAAAAAAAADgAAAIAAAAAAAAAAAAAGAAAQAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAABAAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --metrics-shmem-handle=1664,i,5982909210683318007,8800315588983374250,262144 --field-trial-handle=1960,i,15710362344427284645,13018238144471107076,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=1956 /prefetch:2
        2⤵
          PID:3060
        • C:\Program Files\Google\Chrome\Application\chrome.exe
          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --force-high-res-timeticks=disabled --metrics-shmem-handle=1564,i,16796019321568291731,16737680571910974587,524288 --field-trial-handle=1960,i,15710362344427284645,13018238144471107076,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=2248 /prefetch:3
          2⤵
          • System Time Discovery
          PID:1728
        • C:\Program Files\Google\Chrome\Application\chrome.exe
          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --force-high-res-timeticks=disabled --metrics-shmem-handle=2372,i,15920130975933288133,2120042359956467611,524288 --field-trial-handle=1960,i,15710362344427284645,13018238144471107076,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=2536 /prefetch:8
          2⤵
            PID:5108
          • C:\Program Files\Google\Chrome\Application\chrome.exe
            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --video-capture-use-gpu-memory-buffer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --metrics-shmem-handle=3212,i,7014748709277300478,17886126607238310312,2097152 --field-trial-handle=1960,i,15710362344427284645,13018238144471107076,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=3240 /prefetch:1
            2⤵
              PID:1096
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --video-capture-use-gpu-memory-buffer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --metrics-shmem-handle=3216,i,9247539874439695606,16902837755340451969,2097152 --field-trial-handle=1960,i,15710362344427284645,13018238144471107076,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=3280 /prefetch:1
              2⤵
                PID:4120
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --extension-process --enable-dinosaur-easter-egg-alt-images --force-high-res-timeticks=disabled --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --metrics-shmem-handle=4424,i,7919018001627911442,9109114090438092927,2097152 --field-trial-handle=1960,i,15710362344427284645,13018238144471107076,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=4456 /prefetch:2
                2⤵
                  PID:2092
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=quarantine.mojom.Quarantine --lang=en-US --service-sandbox-type=none --force-high-res-timeticks=disabled --metrics-shmem-handle=5284,i,4900753957037761997,3790593624900155747,524288 --field-trial-handle=1960,i,15710362344427284645,13018238144471107076,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=5300 /prefetch:8
                  2⤵
                    PID:2068
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.ProcessorMetrics --lang=en-US --service-sandbox-type=none --force-high-res-timeticks=disabled --metrics-shmem-handle=5600,i,9700350991749787003,5083262407193086570,524288 --field-trial-handle=1960,i,15710362344427284645,13018238144471107076,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=5604 /prefetch:8
                    2⤵
                      PID:2548
                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --message-loop-type-ui --force-high-res-timeticks=disabled --metrics-shmem-handle=5620,i,942418340540793518,7696638848105714278,524288 --field-trial-handle=1960,i,15710362344427284645,13018238144471107076,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=5796 /prefetch:8
                      2⤵
                        PID:1156
                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --message-loop-type-ui --force-high-res-timeticks=disabled --metrics-shmem-handle=5400,i,18307596656423563512,4610687809081365404,524288 --field-trial-handle=1960,i,15710362344427284645,13018238144471107076,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=5580 /prefetch:8
                        2⤵
                          PID:1116
                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --message-loop-type-ui --force-high-res-timeticks=disabled --metrics-shmem-handle=5392,i,13815289605461945335,17150401240918752447,524288 --field-trial-handle=1960,i,15710362344427284645,13018238144471107076,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=5576 /prefetch:8
                          2⤵
                            PID:2820
                          • C:\Program Files\Google\Chrome\Application\chrome.exe
                            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=quarantine.mojom.Quarantine --lang=en-US --service-sandbox-type=none --force-high-res-timeticks=disabled --metrics-shmem-handle=5964,i,14857578172901574791,11024320474121486213,524288 --field-trial-handle=1960,i,15710362344427284645,13018238144471107076,262144 --variations-seed-version=20260513-090056.789000-production --mojo-platform-channel-handle=5956 /prefetch:8
                            2⤵
                              PID:4596
                          • C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe
                            "C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"
                            1⤵
                              PID:4192
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
                              1⤵
                                PID:3052
                              • C:\Windows\System32\rundll32.exe
                                C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                                1⤵
                                  PID:1152
                                • C:\Users\Admin\AppData\Local\Temp\Temp1_Open the latest report on the computer.zip\Open the latest report on the computer.exe
                                  "C:\Users\Admin\AppData\Local\Temp\Temp1_Open the latest report on the computer.zip\Open the latest report on the computer.exe"
                                  1⤵
                                  • Enumerates connected drives
                                  • System Location Discovery: System Language Discovery
                                  • Suspicious behavior: EnumeratesProcesses
                                  • Suspicious use of SetWindowsHookEx
                                  PID:2152

                                Network

                                      MITRE ATT&CK Enterprise v16

                                      Replay Monitor

                                      Loading Replay Monitor...

                                      Downloads

                                      BookmarkMergedSurfaceOrdering
                                      • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\BookmarkMergedSurfaceOrdering
                                      • Size 6B
                                      • SHA256 4489f9e3e454748b3521eb214e0a5694d562cff3d9ff511cb456953c8f534c00
                                      • MD5 SHA1 SHA512
                                      Submit Download

                                      BrowsingTopicsState
                                      • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\BrowsingTopicsState
                                      • Size 414B
                                      • SHA256 3ecca8198f539068e90cd3079189c9bed34b9a03aa5fab041fce2ebf6ef9aa93
                                      • MD5 SHA1 SHA512 TLSH
                                      Submit Download

                                      Network Persistent State
                                      • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\Network Persistent State
                                      • Size 2KB
                                      • SHA256 7f98d0379f1e00071792745f8630474b28b4c0f479d93ba710255c943677affd
                                      • MD5 SHA1 SHA512 TLSH
                                      Submit Download

                                      Network Persistent State
                                      • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\Network Persistent State
                                      • Size 2KB
                                      • SHA256 f58f97fb08f65bc4f241c91ee0a713862847936fa1c89c347d794557f8270283
                                      • MD5 SHA1 SHA512 TLSH
                                      Submit Download

                                      SCT Auditing Pending Reports
                                      • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\SCT Auditing Pending Reports
                                      • Size 2B
                                      • SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
                                      • MD5 SHA1 SHA512
                                      Submit Download

                                      TransportSecurity
                                      • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity
                                      • Size 859B
                                      • SHA256 f6db694c8d84ae2d9b299519fadda57ad41c9b019bc2ff5c0ff7779e56be4212
                                      • MD5 SHA1 SHA512 TLSH
                                      Submit Download

                                      Preferences
                                      • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                      • Size 12KB
                                      • SHA256 92211fb91d469869f93d933ff4f7e435206e05170145adb13e5af2ded45243ef
                                      • MD5 SHA1 SHA512 SSDEEP TLSH
                                      Submit Download

                                      Preferences
                                      • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                      • Size 12KB
                                      • SHA256 60ea43d1fde817756b07b03731eb84000bd2b097522b788618361d43a2edaf6b
                                      • MD5 SHA1 SHA512 SSDEEP TLSH
                                      Submit Download

                                      Secure Preferences
                                      • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Secure Preferences
                                      • Size 17KB
                                      • SHA256 93a969d5494520a313d59c847d3ee10e51ce49e2c8cea4f6ea38850cfab527d0
                                      • MD5 SHA1 SHA512 SSDEEP TLSH
                                      Submit Download

                                      the-real-index
                                      • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Service Worker\ScriptCache\index-dir\the-real-index
                                      • Size 120B
                                      • SHA256 c8369e33571ac0340c5248ad23752245349db6b7a81ceeba2df7816ad2fa16b4
                                      • MD5 SHA1 SHA512 TLSH
                                      Submit Download

                                      the-real-index~RFe58d099.TMP
                                      • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Service Worker\ScriptCache\index-dir\the-real-index~RFe58d099.TMP
                                      • Size 96B
                                      • SHA256 03a58a967b61a4d0bea80dee744cc43837800e466b14be5f55d5266b97c6e9e6
                                      • MD5 SHA1 SHA512 TLSH
                                      Submit Download

                                      Local State
                                      • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                      • Size 117KB
                                      • SHA256 16872603fabc6716b42435df4cec332d72359af69297b360680972ec95652342
                                      • MD5 SHA1 SHA512 SSDEEP TLSH
                                      Submit Download

                                      Local State
                                      • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                      • Size 116KB
                                      • SHA256 bac4fdeb0dcd3f2ace76aae9880430f893e630e5e1ba830fd78f90e58d8c6c8e
                                      • MD5 SHA1 SHA512 SSDEEP TLSH
                                      Submit Download

                                      Local State
                                      • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                      • Size 116KB
                                      • SHA256 0b3ffb08d491217f821039ec7348a4bbe05b19db15f7a6448b2e7be4f7dbb4ec
                                      • MD5 SHA1 SHA512 SSDEEP TLSH
                                      Submit Download

                                      Local State
                                      • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                      • Size 115KB
                                      • SHA256 254339e90d4f7adc68c0a0208580af3febf744d39ccf59f636afffd301a1a390
                                      • MD5 SHA1 SHA512 SSDEEP TLSH
                                      Submit Download

                                      Local State
                                      • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                      • Size 116KB
                                      • SHA256 3fda7814a9cf0ce02fbce49c0a70fcebfb56ccde92ffdc080bd93fa20789b042
                                      • MD5 SHA1 SHA512 SSDEEP TLSH
                                      Submit Download

                                      data_1
                                      • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\ShaderCache\data_1
                                      • Size 264KB
                                      • SHA256 1aef5a7dc87fb17c56491378c865b1c49178630df7811305303770d49f841386
                                      • MD5 SHA1 SHA512 SSDEEP TLSH
                                      Submit Download

                                      a40e8f52-afaa-4855-a890-bae349c56d4f.tmp
                                      • Path C:\Users\Admin\Downloads\a40e8f52-afaa-4855-a890-bae349c56d4f.tmp
                                      • Size 20KB
                                      • SHA256 ab4bb34d5c60eb9707cf864fd9b154bdb89d45722a429c0afc5b778a962ca11e
                                      • MD5 SHA1 SHA512 SSDEEP TLSH
                                      Submit Download

                                      memory/2152-102-0x0000000002510000-0x0000000002531000-memory.dmp
                                      Download

                                      memory/2152-105-0x0000000002510000-0x0000000002531000-memory.dmp
                                      Download

                                      memory/2152-107-0x0000000002FC0000-0x0000000003007000-memory.dmp
                                      Download

                                      memory/2152-108-0x0000000002FC0000-0x0000000003007000-memory.dmp
                                      Download

                                      memory/2152-109-0x0000000002FC0000-0x0000000003007000-memory.dmp
                                      Download

                                      memory/2152-110-0x0000000002FC0000-0x0000000003007000-memory.dmp
                                      Download

                                      memory/2152-111-0x0000000002FC0000-0x0000000003007000-memory.dmp
                                      Download

                                      memory/2152-112-0x0000000002510000-0x0000000002531000-memory.dmp
                                      Download

                                      memory/2152-113-0x0000000002510000-0x0000000002531000-memory.dmp
                                      Download

                                      memory/2152-114-0x0000000002FC0000-0x0000000003007000-memory.dmp
                                      Download

                                      memory/2152-106-0x0000000002E30000-0x0000000002E71000-memory.dmp
                                      Download

                                      memory/2152-104-0x0000000002510000-0x0000000002531000-memory.dmp
                                      Download

                                      memory/2152-103-0x0000000002510000-0x0000000002531000-memory.dmp
                                      Download

                                      memory/2152-101-0x0000000002510000-0x0000000002531000-memory.dmp
                                      Download

                                      memory/2152-100-0x0000000002480000-0x0000000002501000-memory.dmp
                                      Download

                                      memory/2152-99-0x0000000000900000-0x0000000000901000-memory.dmp
                                      Download