Resubmissions

05/04/2024, 22:37

240405-2jwy7aec7w 8

Analysis

  • max time kernel
    7s
  • max time network
    8s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/04/2024, 22:37

General

  • Target

    https://es.sempra-infra.splunkcloud.com/en-US/app/SplunkEnterpriseSecuritySuite/search?q=search%20index%3Dglobal_proofpoint%20sourcetype%3Dproofpoint_tap_siem%20eventType%3DmessagesDelivered%20completelyRewritten%3Dfalse%20threatsInfoMap%7B%7D.threatStatus!%3DfalsePositive%20NOT%20%0A%20%20%20%20%5B%20inputlookup%20soc_whitelist.csv%20%0A%20%20%20%20%7C%20search%20rule%3D%22Sempra%20-%20Phishing%20Attack%20Against%20Off-Prem%20Mailbox%22%20%0A%20%20%20%20%7C%20rename%20src_user%20as%20headerFrom%20%0A%20%20%20%20%7C%20table%20headerFrom%5D%0A%7C%20spath%20%22fromAddress%7B%7D%22%0A%7C%20search%20fromAddress%7B%7D%3Dnoreply%40wetransfer.com&earliest=1712354400&latest=1712355300&sid=1712356533.887428&display.page.search.mode=verbose&dispatch.sample_ratio=1#

Score
1/10

Malware Config

Signatures

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 5 IoCs
  • Suspicious use of FindShellTrayWindow 25 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://es.sempra-infra.splunkcloud.com/en-US/app/SplunkEnterpriseSecuritySuite/search?q=search%20index%3Dglobal_proofpoint%20sourcetype%3Dproofpoint_tap_siem%20eventType%3DmessagesDelivered%20completelyRewritten%3Dfalse%20threatsInfoMap%7B%7D.threatStatus!%3DfalsePositive%20NOT%20%0A%20%20%20%20%5B%20inputlookup%20soc_whitelist.csv%20%0A%20%20%20%20%7C%20search%20rule%3D%22Sempra%20-%20Phishing%20Attack%20Against%20Off-Prem%20Mailbox%22%20%0A%20%20%20%20%7C%20rename%20src_user%20as%20headerFrom%20%0A%20%20%20%20%7C%20table%20headerFrom%5D%0A%7C%20spath%20%22fromAddress%7B%7D%22%0A%7C%20search%20fromAddress%7B%7D%3Dnoreply%40wetransfer.com&earliest=1712354400&latest=1712355300&sid=1712356533.887428&display.page.search.mode=verbose&dispatch.sample_ratio=1#
    1⤵
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:4560
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0xfc,0x100,0x104,0xd8,0x108,0x7ffabd6946f8,0x7ffabd694708,0x7ffabd694718
      2⤵
        PID:4508
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2140,17227480648252786702,8028798233871161017,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2148 /prefetch:2
        2⤵
          PID:400
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=2140,17227480648252786702,8028798233871161017,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2240 /prefetch:3
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:3476
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=2140,17227480648252786702,8028798233871161017,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2800 /prefetch:8
          2⤵
            PID:4272
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2140,17227480648252786702,8028798233871161017,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3304 /prefetch:1
            2⤵
              PID:4680
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2140,17227480648252786702,8028798233871161017,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3320 /prefetch:1
              2⤵
                PID:4780
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2140,17227480648252786702,8028798233871161017,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5036 /prefetch:1
                2⤵
                  PID:4000
                • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2140,17227480648252786702,8028798233871161017,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5328 /prefetch:8
                  2⤵
                    PID:4412
                  • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2140,17227480648252786702,8028798233871161017,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5328 /prefetch:8
                    2⤵
                    • Suspicious behavior: EnumeratesProcesses
                    PID:1448
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2140,17227480648252786702,8028798233871161017,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5324 /prefetch:1
                    2⤵
                      PID:3848
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2140,17227480648252786702,8028798233871161017,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5468 /prefetch:1
                      2⤵
                        PID:4028
                    • C:\Windows\System32\CompPkgSrv.exe
                      C:\Windows\System32\CompPkgSrv.exe -Embedding
                      1⤵
                        PID:4552
                      • C:\Windows\System32\CompPkgSrv.exe
                        C:\Windows\System32\CompPkgSrv.exe -Embedding
                        1⤵
                          PID:4872

                        Network

                              MITRE ATT&CK Enterprise v15

                              Replay Monitor

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                              Downloads

                              • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

                                Filesize

                                152B

                                MD5

                                f35bb0615bb9816f562b83304e456294

                                SHA1

                                1049e2bd3e1bbb4cea572467d7c4a96648659cb4

                                SHA256

                                05e80abd624454e5b860a08f40ddf33d672c3fed319aac180b7de5754bc07b71

                                SHA512

                                db9100f3e324e74a9c58c7d9f50c25eaa4c6c4553c93bab9b80c6f7bef777db04111ebcd679f94015203b240fe9f4f371cae0d4290ec891a4173c746ff4b11c1

                              • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

                                Filesize

                                152B

                                MD5

                                1eb86108cb8f5a956fdf48efbd5d06fe

                                SHA1

                                7b2b299f753798e4891df2d9cbf30f94b39ef924

                                SHA256

                                1b53367e0041d54af89e7dd59733231f5da1393c551ed2b943c89166c0baca40

                                SHA512

                                e2a661437688a4a01a6eb3b2bd7979ecf96b806f5a487d39354a7f0d44cb693a3b1c2cf6b1247b04e4106cc816105e982569572042bdddb3cd5bec23b4fce29d

                              • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

                                Filesize

                                6KB

                                MD5

                                de30f9acabf4678ed57881a1d848b1de

                                SHA1

                                ecaf20806b36171ce62b6b8d52541845648eb364

                                SHA256

                                97319aafbedbfe1e29845f01aa732c760a257d5629160a6c8538a31f3f034f27

                                SHA512

                                2939174f6d0b0948348801753dd3c5ed7c9413a87771afdf2a2d7365a9936c896c3e8fab21a3a393982441bc10938388735be973f7e36df604ec3e33ff139fd6

                              • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT

                                Filesize

                                16B

                                MD5

                                6752a1d65b201c13b62ea44016eb221f

                                SHA1

                                58ecf154d01a62233ed7fb494ace3c3d4ffce08b

                                SHA256

                                0861415cada612ea5834d56e2cf1055d3e63979b69eb71d32ae9ae394d8306cd

                                SHA512

                                9cfd838d3fb570b44fc3461623ab2296123404c6c8f576b0de0aabd9a6020840d4c9125eb679ed384170dbcaac2fa30dc7fa9ee5b77d6df7c344a0aa030e0389