Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-01-2025 08:56

General

  • Target

    avaydna.exe

  • Size

    43KB

  • MD5

    63f511fef91ec6145ef47f17947f6d74

  • SHA1

    562dcc427d36d26c98279a53eefc7635f4950652

  • SHA256

    32208b799047de8f44aeea18a62c8ee4518026141e300ede79494b972c325cc8

  • SHA512

    5c0ffecaa517ed2a9be066b9ec5b594d3a22969af7280417c50107202db89eda4671f1014619f1ffdbc0818108d068695e572c99fd8a83579e79e6aa0ed3b3aa

  • SSDEEP

    384:ZZyT5ctOnwtOyW6aEscONE3tvLE02L2IfzgIij+ZsNO3PlpJKkkjh/TzF7pWn61p:7QqAwt/W6ZscONE3RT2LruXQ/oN7+L

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

HacKed

C2

both-foundations.gl.at.ply.gg:60732

Mutex

Microsoft Edge Updater

Attributes
  • reg_key

    Microsoft Edge Updater

  • splitter

    |Hassan|

Signatures

  • Njrat family
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • 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.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 26 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\avaydna.exe
    "C:\Users\Admin\AppData\Local\Temp\avaydna.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    PID:4924
  • C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe"
    1⤵
    • Enumerates system info in registry
    • Modifies data under HKEY_USERS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:744
    • 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=123.0.6312.123 --initial-client-data=0x118,0x11c,0x120,0xf4,0x124,0x7ffe1140cc40,0x7ffe1140cc4c,0x7ffe1140cc58
      2⤵
        PID:1728
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --no-appcompat-clear --gpu-preferences=WAAAAAAAAADgAAAMAAAAAAAAAAAAAAAAAABgAAEAAAA4AAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --field-trial-handle=1756,i,17874536680506315447,7095668711277652871,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=1760 /prefetch:2
        2⤵
          PID:1616
        • 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 --no-appcompat-clear --field-trial-handle=2168,i,17874536680506315447,7095668711277652871,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=2196 /prefetch:3
          2⤵
            PID:4760
          • 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 --no-appcompat-clear --field-trial-handle=2212,i,17874536680506315447,7095668711277652871,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=2484 /prefetch:8
            2⤵
              PID:5112
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --field-trial-handle=3140,i,17874536680506315447,7095668711277652871,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=3160 /prefetch:1
              2⤵
                PID:772
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --field-trial-handle=3180,i,17874536680506315447,7095668711277652871,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=3192 /prefetch:1
                2⤵
                  PID:4224
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --field-trial-handle=4484,i,17874536680506315447,7095668711277652871,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=4568 /prefetch:1
                  2⤵
                    PID:4496
                  • 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 --no-appcompat-clear --field-trial-handle=4788,i,17874536680506315447,7095668711277652871,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=4836 /prefetch:8
                    2⤵
                      PID:3928
                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --no-appcompat-clear --field-trial-handle=4944,i,17874536680506315447,7095668711277652871,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=4964 /prefetch:8
                      2⤵
                        PID:1444
                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --lang=en-US --service-sandbox-type=service --no-appcompat-clear --field-trial-handle=4832,i,17874536680506315447,7095668711277652871,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=4848 /prefetch:8
                        2⤵
                          PID:2856
                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --no-appcompat-clear --field-trial-handle=5104,i,17874536680506315447,7095668711277652871,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=4948 /prefetch:8
                          2⤵
                            PID:1352
                          • C:\Program Files\Google\Chrome\Application\chrome.exe
                            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --lang=en-US --service-sandbox-type=service --no-appcompat-clear --field-trial-handle=4960,i,17874536680506315447,7095668711277652871,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=5328 /prefetch:8
                            2⤵
                              PID:1360
                            • C:\Program Files\Google\Chrome\Application\chrome.exe
                              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --no-appcompat-clear --field-trial-handle=5312,i,17874536680506315447,7095668711277652871,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=4952 /prefetch:8
                              2⤵
                                PID:3916
                              • C:\Program Files\Google\Chrome\Application\chrome.exe
                                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --extension-process --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=14 --field-trial-handle=5572,i,17874536680506315447,7095668711277652871,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=5340 /prefetch:2
                                2⤵
                                  PID:2328
                                • C:\Program Files\Google\Chrome\Application\chrome.exe
                                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=15 --field-trial-handle=4856,i,17874536680506315447,7095668711277652871,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=5224 /prefetch:1
                                  2⤵
                                    PID:2440
                                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=16 --field-trial-handle=4992,i,17874536680506315447,7095668711277652871,262144 --variations-seed-version=20241006-180150.222000 --mojo-platform-channel-handle=3404 /prefetch:1
                                    2⤵
                                      PID:4500
                                  • C:\Program Files\Google\Chrome\Application\123.0.6312.123\elevation_service.exe
                                    "C:\Program Files\Google\Chrome\Application\123.0.6312.123\elevation_service.exe"
                                    1⤵
                                      PID:2376
                                    • C:\Windows\system32\svchost.exe
                                      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
                                      1⤵
                                        PID:4612

                                      Network

                                      MITRE ATT&CK Enterprise v15

                                      Replay Monitor

                                      Loading Replay Monitor...

                                      Downloads

                                      • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\BrowsingTopicsState

                                        Filesize

                                        649B

                                        MD5

                                        774fc6d16bf737c6f6ff91c9d5935573

                                        SHA1

                                        f4d326d0e9e02b257729671843b0c706acf0ed3a

                                        SHA256

                                        4b039d6c7bf5bc716ffa4ee2caff67e3cfef9f7aea7f4c64ac6f07de264e7e9d

                                        SHA512

                                        6b5e69fc2b0c2f2715e01f5911522e7805ec9a00414e52678b9bd9bb03434536b2f5a528fd7dff5fe13ae28cfb6ac7486a29eea6200a2e3ac48d795846f27c50

                                      • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Cache\Cache_Data\f_000005

                                        Filesize

                                        215KB

                                        MD5

                                        d79b35ccf8e6af6714eb612714349097

                                        SHA1

                                        eb3ccc9ed29830df42f3fd129951cb8b791aaf98

                                        SHA256

                                        c8459799169b81fdab64d028a9ebb058ea2d0ad5feb33a11f6a45a54a5ccc365

                                        SHA512

                                        f4be1c1e192a700139d7cff5059af81c0234ed5f032796036a1a4879b032ce4eedd16a121bbf776f17bc84a0012846f467ad48b46db4008841c25b779c7d8f5a

                                      • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Code Cache\js\index-dir\the-real-index

                                        Filesize

                                        216B

                                        MD5

                                        65924fb52c9ef49d515b1c834dd959bb

                                        SHA1

                                        c40b4b809e99b2f2810e35ded3ed0740a52de561

                                        SHA256

                                        6c7c18438b97d3096f77b927a5e5b04ef2afa2dad00389e57b2115a3c9018ce1

                                        SHA512

                                        6b468188ea3c5d949ba4c02a11148b83ad3e56592f4dae437b720e673326c46ff04668e94950a4605768a2e3df815ff5892dc31daaceda05f90e853b79a1581b

                                      • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Extensions\ghbmnnjooekpmoecnnnilnnbdlolhkhi\1.85.1_0\_locales\en\messages.json

                                        Filesize

                                        851B

                                        MD5

                                        07ffbe5f24ca348723ff8c6c488abfb8

                                        SHA1

                                        6dc2851e39b2ee38f88cf5c35a90171dbea5b690

                                        SHA256

                                        6895648577286002f1dc9c3366f558484eb7020d52bbf64a296406e61d09599c

                                        SHA512

                                        7ed2c8db851a84f614d5daf1d5fe633bd70301fd7ff8a6723430f05f642ceb3b1ad0a40de65b224661c782ffcec69d996ebe3e5bb6b2f478181e9a07d8cd41f6

                                      • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Extensions\ghbmnnjooekpmoecnnnilnnbdlolhkhi\1.85.1_0\dasherSettingSchema.json

                                        Filesize

                                        854B

                                        MD5

                                        4ec1df2da46182103d2ffc3b92d20ca5

                                        SHA1

                                        fb9d1ba3710cf31a87165317c6edc110e98994ce

                                        SHA256

                                        6c69ce0fe6fab14f1990a320d704fee362c175c00eb6c9224aa6f41108918ca6

                                        SHA512

                                        939d81e6a82b10ff73a35c931052d8d53d42d915e526665079eeb4820df4d70f1c6aebab70b59519a0014a48514833fefd687d5a3ed1b06482223a168292105d

                                      • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\SCT Auditing Pending Reports

                                        Filesize

                                        2B

                                        MD5

                                        d751713988987e9331980363e24189ce

                                        SHA1

                                        97d170e1550eee4afc0af065b78cda302a97674c

                                        SHA256

                                        4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945

                                        SHA512

                                        b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

                                      • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity

                                        Filesize

                                        356B

                                        MD5

                                        bf00e6c38fb69ee70995343edef7029e

                                        SHA1

                                        8a7b41461fa856a88479f4ffd135fc5ef4c8de57

                                        SHA256

                                        b588bab17155229ec7c077b8dfbbfe4ffbba7ec46b490a993ddcc6111125cc61

                                        SHA512

                                        7e2080b864a436be52c2332e22ed81c12824e8ccdd077aadc24ba294f834ed0b7f91fde2210413a7f08e82689efdc3007e76c034a02b5ec6871e16ec7a42c4ce

                                      • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity

                                        Filesize

                                        356B

                                        MD5

                                        0328e40852d079e30cc42cb8b65ca7b0

                                        SHA1

                                        89d53394b7e4f1e7d4715739ae4b84db219d3a67

                                        SHA256

                                        26cf7759341596b9410daf35b82ae863850a8d2cf20fc5bb9b725002b8b3ab7b

                                        SHA512

                                        67161468c7d4b3913bccbea5268f343b269453219b723f4d1a29707eb4b8fc3b5253694c0f3c7c6ba1628fd32b12587938b98327f8f2cdc2958810f330299466

                                      • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences

                                        Filesize

                                        9KB

                                        MD5

                                        d03be249142b90c4a3caa9f85dddbe5f

                                        SHA1

                                        75eaec1b93dafbe0fbc3e1988866df128fba7df5

                                        SHA256

                                        fadb4119c32856987b684eca4270003e64887287623b82d7e0272b6700300a09

                                        SHA512

                                        841c8ec9e0975507a4b00dc38a625112ba20762e2f004193946e3bb3ad02adaefcba6910276c185331709dbc74953312977cfc9ce3100f4167468e7c7d26b8e1

                                      • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences

                                        Filesize

                                        9KB

                                        MD5

                                        aa1dbb85a2d3c914725b3a4447987dbe

                                        SHA1

                                        5cafcb32afc43def0709130a613eebe154a741ee

                                        SHA256

                                        c5338fc9c843a6012813bded5ca8011a8e676814f372c916c00c15af6d5b3122

                                        SHA512

                                        dc1fa65e844dbc60437cf0150996cc3b95f8ee43cbd6119c2ee421e799d7bec451ac789bd9876ddee39d893e366fe197588d2f589a2941d8c55e17d4cbe17091

                                      • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Secure Preferences

                                        Filesize

                                        15KB

                                        MD5

                                        379caea25c771e7842e3d56149bbedd7

                                        SHA1

                                        fb36c507411f5f9e211532a5c3f08f335e3efe9c

                                        SHA256

                                        e53ae6b0e37d96b564e61a74fbe3b2fd8f5b5e9586dfddda43a07c3ae388b67b

                                        SHA512

                                        635cac5f6ca1e233c3a9855b47d60233e28bd468e0d25031e548bf63e580a6d321868a1ae894091972b78cea961a68d8397a8f81824c4dc606a4c3a784b2d35b

                                      • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Service Worker\ScriptCache\index-dir\the-real-index

                                        Filesize

                                        72B

                                        MD5

                                        7e8f8fde01c4373b3886531ccc2ae90e

                                        SHA1

                                        5de62df35344ecf97770ba23e4ef57a5744bf15b

                                        SHA256

                                        4a7e2776e6a0666b707aa1811803f363b05794157e9dc14160b66d7aee7681ad

                                        SHA512

                                        4e7b28fa8511fa114ff4b328feba6897b6f7739f28d2a168d9ae8c11104bde456e2a1637a43a8c7891ffcb188379440a6da855a1d894f2174ee04178ba90f3f9

                                      • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State

                                        Filesize

                                        231KB

                                        MD5

                                        2f963b69b5628f3b171b12f8fddcbf61

                                        SHA1

                                        bb3a4d06a54e59fc1155b1653031e1756c87d625

                                        SHA256

                                        769234c1f7df44dc6bc33b2cef09253f0708c537c42402c9938e4d6b822e473b

                                        SHA512

                                        ef7a57b402737d21ad0a850cce2abc00e4b1181e3bc3780e33f1409686922a3d90d980db49be2d61e6d26e9f23ba44f4151152b6b26b5ec3a707ad82f2aa6072

                                      • C:\Users\Admin\AppData\Local\Temp\scoped_dir744_1184098264\467a8c24-aa4e-443c-9a27-b3b8c0d33517.tmp

                                        Filesize

                                        150KB

                                        MD5

                                        14937b985303ecce4196154a24fc369a

                                        SHA1

                                        ecfe89e11a8d08ce0c8745ff5735d5edad683730

                                        SHA256

                                        71006a5311819fef45c659428944897184880bcdb571bf68c52b3d6ee97682ff

                                        SHA512

                                        1d03c75e4d2cd57eee7b0e93e2de293b41f280c415fb2446ac234fc5afd11fe2f2fcc8ab9843db0847c2ce6bd7df7213fcf249ea71896fbf6c0696e3f5aee46c

                                      • C:\Users\Admin\AppData\Local\Temp\scoped_dir744_1184098264\CRX_INSTALL\_locales\en\messages.json

                                        Filesize

                                        711B

                                        MD5

                                        558659936250e03cc14b60ebf648aa09

                                        SHA1

                                        32f1ce0361bbfdff11e2ffd53d3ae88a8b81a825

                                        SHA256

                                        2445cad863be47bb1c15b57a4960b7b0d01864e63cdfde6395f3b2689dc1444b

                                        SHA512

                                        1632f5a3cd71887774bf3cb8a4d8b787ea6278271657b0f1d113dbe1a7fd42c4daa717cc449f157ce8972037572b882dc946a7dc2c0e549d71982dcdee89f727

                                      • memory/4924-8-0x0000000006BE0000-0x0000000006BF8000-memory.dmp

                                        Filesize

                                        96KB

                                      • memory/4924-11-0x0000000005EC0000-0x0000000005ECA000-memory.dmp

                                        Filesize

                                        40KB

                                      • memory/4924-10-0x0000000075000000-0x00000000757B0000-memory.dmp

                                        Filesize

                                        7.7MB

                                      • memory/4924-9-0x000000007500E000-0x000000007500F000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/4924-0-0x000000007500E000-0x000000007500F000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/4924-7-0x0000000005CD0000-0x0000000005D36000-memory.dmp

                                        Filesize

                                        408KB

                                      • memory/4924-6-0x0000000005A50000-0x0000000005A5A000-memory.dmp

                                        Filesize

                                        40KB

                                      • memory/4924-5-0x0000000005A60000-0x0000000005AF2000-memory.dmp

                                        Filesize

                                        584KB

                                      • memory/4924-4-0x0000000075000000-0x00000000757B0000-memory.dmp

                                        Filesize

                                        7.7MB

                                      • memory/4924-3-0x0000000005F30000-0x00000000064D4000-memory.dmp

                                        Filesize

                                        5.6MB

                                      • memory/4924-2-0x0000000005630000-0x00000000056CC000-memory.dmp

                                        Filesize

                                        624KB

                                      • memory/4924-1-0x0000000000C80000-0x0000000000C92000-memory.dmp

                                        Filesize

                                        72KB