Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-05-2024 17:04

General

  • Target

    http://151.139.43.40/c/msdownload/update/software/defu/2024/01/mpsigstub_6103d9f6bf95c772c8b7ee89aee370cdca4642f8.exe?cacheHostOrigin=au.download.windowsupdate.com

Score
8/10

Malware Config

Signatures

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 34 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --disable-background-networking --disable-component-update --simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT' --single-argument http://151.139.43.40/c/msdownload/update/software/defu/2024/01/mpsigstub_6103d9f6bf95c772c8b7ee89aee370cdca4642f8.exe?cacheHostOrigin=au.download.windowsupdate.com
    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:4620
    • 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=110.0.5481.104 --initial-client-data=0xfc,0x100,0x104,0xd8,0x108,0x7ffa0ec0ab58,0x7ffa0ec0ab68,0x7ffa0ec0ab78
      2⤵
        PID:1652
      • 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=1680 --field-trial-handle=1936,i,15578207017302304795,9462739598783462767,131072 /prefetch:2
        2⤵
          PID:4848
        • 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=2160 --field-trial-handle=1936,i,15578207017302304795,9462739598783462767,131072 /prefetch:8
          2⤵
            PID:3716
          • 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 --mojo-platform-channel-handle=2224 --field-trial-handle=1936,i,15578207017302304795,9462739598783462767,131072 /prefetch:8
            2⤵
              PID:1932
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --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=2996 --field-trial-handle=1936,i,15578207017302304795,9462739598783462767,131072 /prefetch:1
              2⤵
                PID:4628
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=3024 --field-trial-handle=1936,i,15578207017302304795,9462739598783462767,131072 /prefetch:1
                2⤵
                  PID:1556
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=4720 --field-trial-handle=1936,i,15578207017302304795,9462739598783462767,131072 /prefetch:8
                  2⤵
                    PID:4368
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=4744 --field-trial-handle=1936,i,15578207017302304795,9462739598783462767,131072 /prefetch:8
                    2⤵
                      PID:2664
                    • 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 --mojo-platform-channel-handle=5080 --field-trial-handle=1936,i,15578207017302304795,9462739598783462767,131072 /prefetch:8
                      2⤵
                        PID:3812
                      • 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=4084 --field-trial-handle=1936,i,15578207017302304795,9462739598783462767,131072 /prefetch:8
                        2⤵
                          PID:2964
                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=quarantine.mojom.Quarantine --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4712 --field-trial-handle=1936,i,15578207017302304795,9462739598783462767,131072 /prefetch:8
                          2⤵
                            PID:4000
                          • C:\Program Files\Google\Chrome\Application\chrome.exe
                            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=4584 --field-trial-handle=1936,i,15578207017302304795,9462739598783462767,131072 /prefetch:8
                            2⤵
                              PID:4396
                            • C:\Program Files\Google\Chrome\Application\chrome.exe
                              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=5044 --field-trial-handle=1936,i,15578207017302304795,9462739598783462767,131072 /prefetch:8
                              2⤵
                                PID:5024
                              • C:\Users\Admin\Downloads\mpsigstub_6103d9f6bf95c772c8b7ee89aee370cdca4642f8.exe
                                "C:\Users\Admin\Downloads\mpsigstub_6103d9f6bf95c772c8b7ee89aee370cdca4642f8.exe"
                                2⤵
                                • Executes dropped EXE
                                PID:1856
                              • 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=5252 --field-trial-handle=1936,i,15578207017302304795,9462739598783462767,131072 /prefetch:8
                                2⤵
                                  PID:1620
                                • 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=5200 --field-trial-handle=1936,i,15578207017302304795,9462739598783462767,131072 /prefetch:8
                                  2⤵
                                    PID:3252
                                  • 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=5328 --field-trial-handle=1936,i,15578207017302304795,9462739598783462767,131072 /prefetch:8
                                    2⤵
                                      PID:2712
                                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=4318 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.19041.546 --gpu-preferences=UAAAAAAAAADoAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAACQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1544 --field-trial-handle=1936,i,15578207017302304795,9462739598783462767,131072 /prefetch:2
                                      2⤵
                                      • Suspicious behavior: EnumeratesProcesses
                                      PID:5068
                                  • C:\Program Files\Google\Chrome\Application\110.0.5481.104\elevation_service.exe
                                    "C:\Program Files\Google\Chrome\Application\110.0.5481.104\elevation_service.exe"
                                    1⤵
                                      PID:3340

                                    Network

                                    MITRE ATT&CK Enterprise v15

                                    Replay Monitor

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                                    Downloads

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

                                      Filesize

                                      1KB

                                      MD5

                                      5af64df77398db8661ea301795be0c40

                                      SHA1

                                      c2227b864050c2c25c9ac33a4f33856504a95cab

                                      SHA256

                                      397692c544246d2970492b0960731be032b2ca5e8dd9c774e9cc75c2fdaf55ad

                                      SHA512

                                      5558b35273d9866cbf7e8902b8fa5b9aa036cfdd1ffed997bfb3d70625f27df6fede74b46e5f3f4b5e02fb08578c38360ed0f517e4e55ad136a4b83ae8f410b3

                                    • 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\Preferences

                                      Filesize

                                      7KB

                                      MD5

                                      f4f8c0011ca973a93cab5aeb5e185738

                                      SHA1

                                      980d8cc5511a2d9dd6385ac0827198aaef52780a

                                      SHA256

                                      0a8e2924f8332cdb460b243a45f5eadc578d59bf3426b8f5d349c1d95572365f

                                      SHA512

                                      0322ea1810c1be125f01c30892fdb24f5b24d16059e7b725747d4e0f7a674fc7dd349af81f36c0cab5b5db4528145ff9e33f05d3696028015e0a46edcc0bd539

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

                                      Filesize

                                      257KB

                                      MD5

                                      5b77e936831c6c46bc0e7e80ef40410e

                                      SHA1

                                      f4bb19531d3ed917533c2bd7e92a58e721f5271c

                                      SHA256

                                      e83d8288fbdd4af0ca747ab7f97123d934ac9bf2e84fef91f4a692f678f6e4d5

                                      SHA512

                                      6d50c19982bea2325c2d470b916ccd475bae7546e57af406c84ae93fa6669fe3e3cf0866f19085fb3cf0cc6563fde69d133aa48add48ad61faec1cc68bd2af74

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

                                      Filesize

                                      277KB

                                      MD5

                                      462b25da412629c39e29f48ee4969d88

                                      SHA1

                                      7cc2d1fd497e070f192650ea379723ab63c047a1

                                      SHA256

                                      86186c6b537ce38073f73eb8051cf4cc8eb1612c1dd8ccbb9e7ba8944b0d25f6

                                      SHA512

                                      7463942c0a5d0f5e9c46282f78023c56c45518ab0c36f197db8ec511f92fe6d33d3a6cdd186b2833d2c4711d02b1949203a2950ac4aee1cf9f624fbaf5ef26ff

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

                                      Filesize

                                      257KB

                                      MD5

                                      7b3315e3a0ab0de980d3b2a73969e6e8

                                      SHA1

                                      d175b58daa251a8f0ad5a0a37bc3b101b83e9e4f

                                      SHA256

                                      0d9f560dba03a10d0d24e615e1ce1f828ed974253e78eb919995b01a1d2dda43

                                      SHA512

                                      3e623848ccce2946ed966a01d631426bc82a6fb140438093b15df950d7e4ae1a73e6365ef7b5da21590319c4c65b01d779ea52ccd33d7257882b58e107ae36a1

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

                                      Filesize

                                      257KB

                                      MD5

                                      ef9cabfbdfd28056f9e094cf0991cba1

                                      SHA1

                                      111143a75516c7cdc8065d0d9627abacdb3252d9

                                      SHA256

                                      bab5874bd4afdea61bfae85528e2906d1e598e899f031a321ac09cfcd4e6dba8

                                      SHA512

                                      59f44f8a4e15d98cba632752e81dbbd996e437709798241d6f7e7ad568bc6113189c83fce9e1d2610748f96929faf10b903cd0ee1277ff818c717f355c8d8931

                                    • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Module Info Cache

                                      Filesize

                                      104KB

                                      MD5

                                      1af25c72cd4d4753b974ff0d765c21eb

                                      SHA1

                                      6da054dacfaba8b3c6eac368daae0d748fca2c96

                                      SHA256

                                      c3396c17ac2907c8b2b6b6a4bf57c5bf9946ce584d94eb0bb0ebc51dce1fa092

                                      SHA512

                                      e63501eb63cec2e3aff56eb32e2fbfcac829a76cd0ba53d4f5a36876838c4620142a101495a1b260fb70d78254191fa9b456d8c13f2ec317d79ada480dc40d4a

                                    • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Module Info Cache~RFe580d0b.TMP

                                      Filesize

                                      100KB

                                      MD5

                                      ec31b85cfbb9ed19e46b9022a352f9af

                                      SHA1

                                      724781395b6f62dc134a67637f52b44128388762

                                      SHA256

                                      ab1d850529a0ee8b4b6880a42104370f6e52905485fe12da36e7b452cde06ced

                                      SHA512

                                      a4acf237d6885e9436aea8539d60406ec7d8af6859bce2ffa9ab200a74c29034f6f10eaee513b89ab1a579787245f67d8ea0624e480fa43dadfbafc8bd191555

                                    • C:\Users\Admin\Downloads\Unconfirmed 905582.crdownload

                                      Filesize

                                      897KB

                                      MD5

                                      71cf589293424c4389202c7f1752fb2d

                                      SHA1

                                      6103d9f6bf95c772c8b7ee89aee370cdca4642f8

                                      SHA256

                                      071b0d3a08503a8b88aeeda1d20f371a563377028f6e252dc66cce60ab8f823e

                                      SHA512

                                      893ad57ffa14912ce51e33461f9786d6976ea6d57ef66cf74b6e1fcc97ce9aa5a49632d73c84bf575256234b6ac3df2451976846dafa2fe34668bea7295bdd17