Resubmissions

18/03/2025, 11:53

250318-n2h86avrz9 10

17/03/2025, 21:12

250317-z2dt8asjw2 10

17/03/2025, 20:53

250317-zpn5esx1hz 10

28/03/2024, 00:31

240328-at3qyabh8s 10

19/02/2024, 18:20

240219-wy9wpsad3y 10

Analysis

  • max time kernel
    31s
  • max time network
    58s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    28/03/2024, 00:31

General

  • Target

    CryptoLocker.exe

  • Size

    338KB

  • MD5

    04fb36199787f2e3e2135611a38321eb

  • SHA1

    65559245709fe98052eb284577f1fd61c01ad20d

  • SHA256

    d765e722e295969c0a5c2d90f549db8b89ab617900bf4698db41c7cdad993bb9

  • SHA512

    533d6603f6e2a77bd1b2c6591a135c4717753d53317c1be06e43774e896d9543bcd0ea6904a0688aa84b2d8424641d68994b1e7dc4aa46d66c36feecb6145444

  • SSDEEP

    6144:sWmw0EuCN0pLWgTO3x5N22vWvLRKKAX5l++SybIvC:sWkEuCaNT85I2vCMX5l+ZRv

Malware Config

Signatures

  • CryptoLocker

    Ransomware family with multiple variants.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of FindShellTrayWindow 34 IoCs
  • Suspicious use of SendNotifyMessage 32 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\CryptoLocker.exe
    "C:\Users\Admin\AppData\Local\Temp\CryptoLocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1356
    • C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe
      "C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe" "/rC:\Users\Admin\AppData\Local\Temp\CryptoLocker.exe"
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:2340
      • C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe
        "C:\Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe" /w000000C8
        3⤵
        • Executes dropped EXE
        PID:2204
  • C:\Windows\explorer.exe
    "C:\Windows\explorer.exe"
    1⤵
      PID:2520
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe"
      1⤵
      • Enumerates system info in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:2532
      • 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:7 --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=106.0.5249.119 --initial-client-data=0xc0,0xc4,0xc8,0x94,0xcc,0x7fef5c09758,0x7fef5c09768,0x7fef5c09778
        2⤵
          PID:2884
        • C:\Program Files\Google\Chrome\Application\chrome.exe
          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1124 --field-trial-handle=1328,i,5806527106322016557,9946243832333650796,131072 /prefetch:2
          2⤵
            PID:2012
          • 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 --mojo-platform-channel-handle=1540 --field-trial-handle=1328,i,5806527106322016557,9946243832333650796,131072 /prefetch:8
            2⤵
              PID:2140
            • 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=utility --mojo-platform-channel-handle=1664 --field-trial-handle=1328,i,5806527106322016557,9946243832333650796,131072 /prefetch:8
              2⤵
                PID:1860
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --first-renderer-process --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=2176 --field-trial-handle=1328,i,5806527106322016557,9946243832333650796,131072 /prefetch:1
                2⤵
                  PID:904
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=2184 --field-trial-handle=1328,i,5806527106322016557,9946243832333650796,131072 /prefetch:1
                  2⤵
                    PID:1488
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --use-gl=angle --use-angle=swiftshader-webgl --mojo-platform-channel-handle=1504 --field-trial-handle=1328,i,5806527106322016557,9946243832333650796,131072 /prefetch:2
                    2⤵
                      PID:2312
                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --mojo-platform-channel-handle=3236 --field-trial-handle=1328,i,5806527106322016557,9946243832333650796,131072 /prefetch:1
                      2⤵
                        PID:1624
                      • 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 --mojo-platform-channel-handle=3868 --field-trial-handle=1328,i,5806527106322016557,9946243832333650796,131072 /prefetch:8
                        2⤵
                          PID:2948
                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=10 --mojo-platform-channel-handle=3908 --field-trial-handle=1328,i,5806527106322016557,9946243832333650796,131072 /prefetch:1
                          2⤵
                            PID:2084
                          • 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 --mojo-platform-channel-handle=3872 --field-trial-handle=1328,i,5806527106322016557,9946243832333650796,131072 /prefetch:8
                            2⤵
                              PID:1496
                            • 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 --mojo-platform-channel-handle=3948 --field-trial-handle=1328,i,5806527106322016557,9946243832333650796,131072 /prefetch:8
                              2⤵
                                PID:2716
                            • C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe
                              "C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe"
                              1⤵
                                PID:1704

                              Network

                              MITRE ATT&CK Enterprise v15

                              Replay Monitor

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                              Downloads

                              • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\1c02fbd3-9f9b-48b0-8960-cfa4dd6e478c.tmp

                                Filesize

                                263KB

                                MD5

                                9746283d3864e6af40aae1774cc1cb6c

                                SHA1

                                f2722eb12e99c5f69c1e16d346924fbe1898cc82

                                SHA256

                                6a213aa52203f8edaae8df95a2c96c050173e49f1f051e03156157b1195a0795

                                SHA512

                                b8f49a4b4fdfb4157825ee36a229fb9136f9476b78927fe41932c31efb53f3dbc80a728731bee4c859728327097529df1619f6f14b24cc18310899383dfe0dc9

                              • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Cache\Cache_Data\f_000001

                                Filesize

                                197KB

                                MD5

                                5e28e72b443ded036a4cf369d0dda3bf

                                SHA1

                                0500de4480a54243b12d096745c6ba04c9479e66

                                SHA256

                                15fc7a054efbb9f76d937448fbb4814d7b3f25a6d137e24c1a69e32947eae71e

                                SHA512

                                7d17a5248e54e4dda8fd17a4d662edbb274629161a1e25b3b7f7f5112541663a5040788177268c53b2c78bc7e6d2204ccfb342d93c2ceec0a12d8a41788c088b

                              • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GPUCache\data_1

                                Filesize

                                264KB

                                MD5

                                f50f89a0a91564d0b8a211f8921aa7de

                                SHA1

                                112403a17dd69d5b9018b8cede023cb3b54eab7d

                                SHA256

                                b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec

                                SHA512

                                bf8cda48cf1ec4e73f0dd1d4fa5562af1836120214edb74957430cd3e4a2783e801fa3f4ed2afb375257caeed4abe958265237d6e0aacf35a9ede7a2e8898d58

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

                                Filesize

                                359B

                                MD5

                                23d318bf7db1c93ad2de25ad9739940a

                                SHA1

                                9a82ac56b0194edc1c6321f66fc66afa5919a6f8

                                SHA256

                                3f96018b55f3f8f268ec321386880b1eacee40990ae228418019e2c21fdff712

                                SHA512

                                eba41f43b5d831ee1b5952eb247607519fa30e33fc9fa5bc131dfbad32bdd071af286f0352958676a1bde2d5b25f509d0f7f936d900682d6c2b430ead8704d13

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

                                Filesize

                                4KB

                                MD5

                                df03a61ee98160af9386803b27d6aee9

                                SHA1

                                e3d0803888d6cb40325310c2a0a27387fb56c01f

                                SHA256

                                cc4a93f82e042c1088f4fddfe380cf8940c7ff72d987070ddc6d00024abcddb5

                                SHA512

                                6c2717b7244dc7d51136eb9ffbae66ca96c2782e211865606e96addafca34878a08d8b43d9deb92aaac688118761fd37060af8811fbe92e01657ad04d95bd2bd

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

                                Filesize

                                5KB

                                MD5

                                c5a3d884a8471514516f419a20bc1dcc

                                SHA1

                                191a10e910ca4e46f9f397651a17acd77a575b34

                                SHA256

                                0a15007a3d1925be8d949af37bdfb711509e635edb8009cf264f6ef76f5c3625

                                SHA512

                                6d33e6e655b2989b9aad9243d2a0bd335e287627ee1055f6ff9a2ca808bf0abbbecf99a85de5ff8f8a6aa4452e02e79834ad160faf56227ddf7846e0d6aaf17d

                              • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Sync Data\LevelDB\000007.dbtmp

                                Filesize

                                16B

                                MD5

                                18e723571b00fb1694a3bad6c78e4054

                                SHA1

                                afcc0ef32d46fe59e0483f9a3c891d3034d12f32

                                SHA256

                                8af72f43857550b01eab1019335772b367a17a9884a7a759fdf4fe6f272b90aa

                                SHA512

                                43bb0af7d3984012d2d67ca6b71f0201e5b948e6fe26a899641c4c6f066c59906d468ddf7f1df5ea5fa33c2bc5ea8219c0f2c82e0a5c365ad7581b898a8859e2

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

                                Filesize

                                263KB

                                MD5

                                44c12e09b352049cc59fd97c7f2123a9

                                SHA1

                                befe5f04fe1027d139a6e9d2fc72b6f1b2ff0d7e

                                SHA256

                                ca2be785622a22bae98baac61fe6416866df0ff793dcc48250e2ebd7ac44479e

                                SHA512

                                6ab66df4a5af2ad808990a99f0a8d0b898825333ce6fd1172a8b29f3325577164023dd3d7a8091d96a77cd58dccb392800f3e44eb7d168bb5873c442b738bee2

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

                                Filesize

                                257KB

                                MD5

                                c21d1d6198c02c3491954e3ed97b251f

                                SHA1

                                b7b8dd842f0d9f6ef4dcfa0a04e5a1609ef25aca

                                SHA256

                                c2993b55e8262558accb702ccd75c826fa9d518b2d2505810e4c3fb091870bda

                                SHA512

                                6a2881e1ccdbe56fbd6d78fb9c5adbac2235ff026ce785dae1c0b472fb9658f42b8111b670740baf85a0cf18b9f3010301954885cfa0a7e306eadfb18900a22e

                              • \Users\Admin\AppData\Roaming\{34184A33-0407-212E-3320-09040709E2C2}.exe

                                Filesize

                                338KB

                                MD5

                                04fb36199787f2e3e2135611a38321eb

                                SHA1

                                65559245709fe98052eb284577f1fd61c01ad20d

                                SHA256

                                d765e722e295969c0a5c2d90f549db8b89ab617900bf4698db41c7cdad993bb9

                                SHA512

                                533d6603f6e2a77bd1b2c6591a135c4717753d53317c1be06e43774e896d9543bcd0ea6904a0688aa84b2d8424641d68994b1e7dc4aa46d66c36feecb6145444