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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
    150s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    17/03/2025, 20:53

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.

  • Cryptolocker family
  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • System Location Discovery: System Language Discovery 1 TTPs 4 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 4 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 20 IoCs
  • Suspicious use of FindShellTrayWindow 35 IoCs
  • Suspicious use of SendNotifyMessage 32 IoCs
  • Suspicious use of SetWindowsHookEx 4 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
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2736
    • 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
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2684
      • 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
        • System Location Discovery: System Language Discovery
        PID:2476
  • 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:2648
    • 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,0x7fef8169758,0x7fef8169768,0x7fef8169778
      2⤵
        PID:3068
      • 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=1144 --field-trial-handle=1276,i,17548773727116102297,6696479322688173161,131072 /prefetch:2
        2⤵
          PID:768
        • 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=1492 --field-trial-handle=1276,i,17548773727116102297,6696479322688173161,131072 /prefetch:8
          2⤵
            PID:2276
          • 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=1556 --field-trial-handle=1276,i,17548773727116102297,6696479322688173161,131072 /prefetch:8
            2⤵
              PID:1092
            • 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=2296 --field-trial-handle=1276,i,17548773727116102297,6696479322688173161,131072 /prefetch:1
              2⤵
                PID:2392
              • 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=2304 --field-trial-handle=1276,i,17548773727116102297,6696479322688173161,131072 /prefetch:1
                2⤵
                  PID:2216
                • 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=1360 --field-trial-handle=1276,i,17548773727116102297,6696479322688173161,131072 /prefetch:2
                  2⤵
                    PID:1476
                  • 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=1428 --field-trial-handle=1276,i,17548773727116102297,6696479322688173161,131072 /prefetch:1
                    2⤵
                      PID:2932
                    • 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 --mojo-platform-channel-handle=3400 --field-trial-handle=1276,i,17548773727116102297,6696479322688173161,131072 /prefetch:8
                      2⤵
                        PID:2872
                      • 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 --mojo-platform-channel-handle=3624 --field-trial-handle=1276,i,17548773727116102297,6696479322688173161,131072 /prefetch:8
                        2⤵
                          PID:540
                        • 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 --mojo-platform-channel-handle=3744 --field-trial-handle=1276,i,17548773727116102297,6696479322688173161,131072 /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=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=3856 --field-trial-handle=1276,i,17548773727116102297,6696479322688173161,131072 /prefetch:8
                            2⤵
                              PID:1424
                            • 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=3576 --field-trial-handle=1276,i,17548773727116102297,6696479322688173161,131072 /prefetch:8
                              2⤵
                                PID:2576
                              • 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=14 --mojo-platform-channel-handle=3928 --field-trial-handle=1276,i,17548773727116102297,6696479322688173161,131072 /prefetch:1
                                2⤵
                                  PID:2564
                              • 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:1128
                                • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
                                  "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde /n
                                  1⤵
                                  • System Location Discovery: System Language Discovery
                                  • Enumerates system info in registry
                                  • Suspicious behavior: AddClipboardFormatListener
                                  • Suspicious behavior: GetForegroundWindowSpam
                                  • Suspicious use of SetWindowsHookEx
                                  PID:336

                                Network

                                MITRE ATT&CK Enterprise v15

                                Replay Monitor

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                                Downloads

                                • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\383de55d-bb90-4ba4-837a-6c2d722600ba.tmp

                                  Filesize

                                  350KB

                                  MD5

                                  2e46571e02cf0ddb90ce1b93ee2d259b

                                  SHA1

                                  b8909bb54a284fc7dc793a726f17a51137fe23c6

                                  SHA256

                                  19dad4cab8bd21c175aaaf6f1faf5e65c263ef15d63787559074917e1650bc2b

                                  SHA512

                                  d2235b7806ecbe270d30e2968838f47b0d0d9b85309e6846ddffa0fd58f0283c0ad3d7bf96a3eca9e7a10705e7913f4865d39bf2be20da69aa461d9a1aff9518

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

                                  Filesize

                                  215KB

                                  MD5

                                  d8899b1c0aa7c8e5836708fa76dfb119

                                  SHA1

                                  3ac6fbb49e7350221da7ee4d658efa239f2985eb

                                  SHA256

                                  106b6d9e8fab32613ec95b387848efc1a8b411ae4609237004009bd330e1a67f

                                  SHA512

                                  9f97e9187e145377992ecce519189fac8a3d13ee1c8fcef31b7aa1b2e5d1aacf0275fa031fddd40ab1bdfc855d549053f4dc43b65e6baf985924cad146d2bd2d

                                • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GCM Store\Encryption\000006.dbtmp

                                  Filesize

                                  16B

                                  MD5

                                  aefd77f47fb84fae5ea194496b44c67a

                                  SHA1

                                  dcfbb6a5b8d05662c4858664f81693bb7f803b82

                                  SHA256

                                  4166bf17b2da789b0d0cc5c74203041d98005f5d4ef88c27e8281e00148cd611

                                  SHA512

                                  b733d502138821948267a8b27401d7c0751e590e1298fda1428e663ccd02f55d0d2446ff4bc265bdcdc61f952d13c01524a5341bc86afc3c2cde1d8589b2e1c3

                                • 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\Preferences

                                  Filesize

                                  5KB

                                  MD5

                                  b1db234438c2fc52d52f6c7e27f8e063

                                  SHA1

                                  9cedbf4ad9bb6da13cd9ed3d45522ce50969e5f3

                                  SHA256

                                  fdc39d6811054e89597264411078d66430841aa27deaef3425dc845ced44a90a

                                  SHA512

                                  ea8fc4f4380f334341385f1605c731929405da1f9f9dce97c60e85051ed276e62799cc22d87ba6b277cf2cb99c5be12d30134d4a191d33ef5f444f4c3efa56aa

                                • 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

                                  350KB

                                  MD5

                                  a33d5682b1bd22f6384b47fb4d454b5b

                                  SHA1

                                  6d6fbc94111eb8846793fb5b04e7d8360aa8712a

                                  SHA256

                                  6fc9627ee752d95865ac9bdd10cebdf25c760941e58198d1f58490095041654d

                                  SHA512

                                  fa5b6ca2b13a556642a8209e24e7b45eb0266f5c18e404c2ddbcb41a85f6b61efdb72114a0c1b9667d2e88e9d29566af50fcc10c3cd6fba06c02c0bf158aa50f

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

                                  Filesize

                                  338KB

                                  MD5

                                  04fb36199787f2e3e2135611a38321eb

                                  SHA1

                                  65559245709fe98052eb284577f1fd61c01ad20d

                                  SHA256

                                  d765e722e295969c0a5c2d90f549db8b89ab617900bf4698db41c7cdad993bb9

                                  SHA512

                                  533d6603f6e2a77bd1b2c6591a135c4717753d53317c1be06e43774e896d9543bcd0ea6904a0688aa84b2d8424641d68994b1e7dc4aa46d66c36feecb6145444

                                • memory/336-224-0x000000005FFF0000-0x0000000060000000-memory.dmp

                                  Filesize

                                  64KB