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Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/12/2022, 09:10

General

  • Target

    c586d1deea211fcbdcfc54634cbd8b473ac0d42975872d858b22b300031aa3b1.exe

  • Size

    14KB

  • MD5

    37f4d7b41c89ae41feb357a4cfbcd110

  • SHA1

    681aae8925ae73d648dd6db2fae3c8bf5c61a114

  • SHA256

    c586d1deea211fcbdcfc54634cbd8b473ac0d42975872d858b22b300031aa3b1

  • SHA512

    305392e65fa34c10ec58b91deaa7a665adbffc660a8b063542c549177733fe59d5df0f12f59158250685db2e8df8bad30dcbfbef12ec9c8367c558d3b84e6c96

  • SSDEEP

    384:AQinGlV5lRwaM9IV3wag7YjIRV4mn29xMyj:Ad2gab2V4mnA2u

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 3 IoCs
  • Enumerates connected drives 3 TTPs 22 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 6 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c586d1deea211fcbdcfc54634cbd8b473ac0d42975872d858b22b300031aa3b1.exe
    "C:\Users\Admin\AppData\Local\Temp\c586d1deea211fcbdcfc54634cbd8b473ac0d42975872d858b22b300031aa3b1.exe"
    1⤵
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in System32 directory
    • Suspicious use of WriteProcessMemory
    PID:3016
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://www.cnn.com/
      2⤵
      • Adds Run key to start application
      • Enumerates system info in registry
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4976
      • 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=0xf8,0xfc,0x100,0xd8,0x104,0x7ffb63c246f8,0x7ffb63c24708,0x7ffb63c24718
        3⤵
          PID:3516
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2144,2744807727883474475,130569965291482177,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2172 /prefetch:2
          3⤵
            PID:3468
          • 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=2144,2744807727883474475,130569965291482177,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2344 /prefetch:3
            3⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:4176
          • 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=2144,2744807727883474475,130569965291482177,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2760 /prefetch:8
            3⤵
              PID:800
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2144,2744807727883474475,130569965291482177,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3776 /prefetch:1
              3⤵
                PID:4472
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2144,2744807727883474475,130569965291482177,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3792 /prefetch:1
                3⤵
                  PID:3384
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2144,2744807727883474475,130569965291482177,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=7 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5380 /prefetch:1
                  3⤵
                    PID:4572
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2144,2744807727883474475,130569965291482177,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5860 /prefetch:1
                    3⤵
                      PID:444
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=2144,2744807727883474475,130569965291482177,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5408 /prefetch:8
                      3⤵
                        PID:4676
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2144,2744807727883474475,130569965291482177,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5456 /prefetch:1
                        3⤵
                          PID:680
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2144,2744807727883474475,130569965291482177,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5488 /prefetch:1
                          3⤵
                            PID:1892
                          • 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=2144,2744807727883474475,130569965291482177,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=6844 /prefetch:8
                            3⤵
                              PID:5052
                            • 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=2144,2744807727883474475,130569965291482177,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=6844 /prefetch:8
                              3⤵
                              • Suspicious behavior: EnumeratesProcesses
                              PID:2692
                            • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe
                              "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe" --configure-user-settings --verbose-logging --system-level --msedge --force-configure-user-settings
                              3⤵
                              • Drops file in Program Files directory
                              PID:2188
                              • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe" --type=crashpad-handler /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Windows\TEMP\MsEdgeCrashpad --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0x220,0x224,0x228,0x1fc,0x22c,0x7ff6da065460,0x7ff6da065470,0x7ff6da065480
                                4⤵
                                  PID:4092
                              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --field-trial-handle=2144,2744807727883474475,130569965291482177,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=6404 /prefetch:8
                                3⤵
                                  PID:4272
                              • C:\Users\Admin\AppData\Local\Temp\fL0a6jX.exe
                                fL0a6jX.exe
                                2⤵
                                • Executes dropped EXE
                                PID:636
                            • C:\Windows\System32\CompPkgSrv.exe
                              C:\Windows\System32\CompPkgSrv.exe -Embedding
                              1⤵
                                PID:2300

                              Network

                              MITRE ATT&CK Enterprise v6

                              Replay Monitor

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                              Downloads

                              • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B039FEA45CB4CC4BBACFC013C7C55604_A373FEC5204D779A8604E28CC627A508

                                Filesize

                                1KB

                                MD5

                                811f81dcc1ed1b28f1b942e319aaa1e6

                                SHA1

                                6e22e6f7db2857ab9197ff0101870d37cb0f90d9

                                SHA256

                                3efef31b1775ae0e5ad835da3dd2eed0d36298d56f189b4e869ba202f803b4cf

                                SHA512

                                f9d4acdafdbeba1b00d28707cad059ff0dc32578d78eca895942f6c088dfda53cd548fdd8de7e41b5a903687363dfffddd1e4eb6eb42edf3ff04c552f02b59c8

                              • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B039FEA45CB4CC4BBACFC013C7C55604_A373FEC5204D779A8604E28CC627A508

                                Filesize

                                518B

                                MD5

                                0515583c18625babe6c9ad0cdedac4dd

                                SHA1

                                e3f4e4af9874317430f0dd4f72e56b074ae8a8ca

                                SHA256

                                0eb4c083c55fcb8f47af12ed04bc24c14d5b803c0c747dca93482a3b36f3281f

                                SHA512

                                104ee48ec97035a7909030e3ce25cfa520ae1c9da5c835897b9770931e2c4ed67a108de8e85a37014e0428f612b706c2b15af25fa182ddf988934649e0229f84

                              • C:\Users\Admin\AppData\Local\Temp\fL0a6jX.exe

                                Filesize

                                5KB

                                MD5

                                9da57bda8b9aa4990197efddad6b3f10

                                SHA1

                                c5d88013b330c2e56397c450a14c09e406e273a1

                                SHA256

                                9b653059ae82c751862f133d97024bb2a5f23bd50f6ad02338aab5fd6bcfc407

                                SHA512

                                2a8e749cbf0fc1db03b7299f8f10be995f4aed1d54c20e8cd5028a8c2997fa6a9f1f24d188bdc5392b24baf292bfa1ec6f5a0ad25da6e06eb48f0811c6046880

                              • C:\Users\Admin\AppData\Local\Temp\fL0a6jX.exe

                                Filesize

                                5KB

                                MD5

                                9da57bda8b9aa4990197efddad6b3f10

                                SHA1

                                c5d88013b330c2e56397c450a14c09e406e273a1

                                SHA256

                                9b653059ae82c751862f133d97024bb2a5f23bd50f6ad02338aab5fd6bcfc407

                                SHA512

                                2a8e749cbf0fc1db03b7299f8f10be995f4aed1d54c20e8cd5028a8c2997fa6a9f1f24d188bdc5392b24baf292bfa1ec6f5a0ad25da6e06eb48f0811c6046880

                              • memory/636-139-0x0000000000400000-0x0000000000408000-memory.dmp

                                Filesize

                                32KB

                              • memory/3016-135-0x0000000000400000-0x000000000040D000-memory.dmp

                                Filesize

                                52KB

                              • memory/3016-132-0x0000000000400000-0x000000000040D000-memory.dmp

                                Filesize

                                52KB