Analysis

  • max time kernel
    151s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 11:02

General

  • Target

    2a8799bf52ffcd9cdab542ff527dabe68ba6fd50e57a5d86d74755f656e659f0.exe

  • Size

    257KB

  • MD5

    589591d5d3158f31a8bcca37bf48a22b

  • SHA1

    12e3c9117bfba267a7f58fc35d15a92e5900d7f0

  • SHA256

    2a8799bf52ffcd9cdab542ff527dabe68ba6fd50e57a5d86d74755f656e659f0

  • SHA512

    a5700594f9de303a37b313225c2800cd3c6e3ca846c420b6327779049e551b7da1ddec167cb106df8a149ce3c8996b51aed1abed784ec594d14a78036ca369e2

  • SSDEEP

    6144:8e34LSvo5Pk5R1hci6lriZd9iUxjwKJ1XJ+UaaoPkFH0s:jviSThSriZdcUJld+paoPkD

Score
7/10

Malware Config

Signatures

  • Loads dropped DLL 13 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Program Files directory 4 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 18 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2a8799bf52ffcd9cdab542ff527dabe68ba6fd50e57a5d86d74755f656e659f0.exe
    "C:\Users\Admin\AppData\Local\Temp\2a8799bf52ffcd9cdab542ff527dabe68ba6fd50e57a5d86d74755f656e659f0.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1952
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://k.deyiweixiu.cn/2a8799bf52ffcd9cdab542ff527dabe68ba6fd50e57a5d86d74755f656e659f0.exe/40.jpg
      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:2716
      • 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,0x100,0xd4,0x104,0x7ff991c246f8,0x7ff991c24708,0x7ff991c24718
        3⤵
          PID:4404
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2160,6313012904928206153,13387225817042367929,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2168 /prefetch:2
          3⤵
            PID:3000
          • 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=2160,6313012904928206153,13387225817042367929,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2244 /prefetch:3
            3⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:2644
          • 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=2160,6313012904928206153,13387225817042367929,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2760 /prefetch:8
            3⤵
              PID:1272
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2160,6313012904928206153,13387225817042367929,131072 --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=3328 /prefetch:1
              3⤵
                PID:3272
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2160,6313012904928206153,13387225817042367929,131072 --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=3340 /prefetch:1
                3⤵
                  PID:360
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2160,6313012904928206153,13387225817042367929,131072 --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=4912 /prefetch:1
                  3⤵
                    PID:1356
                  • 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=2160,6313012904928206153,13387225817042367929,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5016 /prefetch:8
                    3⤵
                      PID:3828
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2160,6313012904928206153,13387225817042367929,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5040 /prefetch:1
                      3⤵
                        PID:1420
                      • 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=2160,6313012904928206153,13387225817042367929,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5236 /prefetch:8
                        3⤵
                          PID:3452
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2160,6313012904928206153,13387225817042367929,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5680 /prefetch:1
                          3⤵
                            PID:1488
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2160,6313012904928206153,13387225817042367929,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5796 /prefetch:1
                            3⤵
                              PID:640
                            • 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=2160,6313012904928206153,13387225817042367929,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5172 /prefetch:8
                              3⤵
                                PID:2236
                              • 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:4656
                                • 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,0x7ff765a65460,0x7ff765a65470,0x7ff765a65480
                                  4⤵
                                    PID:4352
                                • 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=2160,6313012904928206153,13387225817042367929,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5172 /prefetch:8
                                  3⤵
                                  • Suspicious behavior: EnumeratesProcesses
                                  PID:452
                                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2160,6313012904928206153,13387225817042367929,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=14 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=6244 /prefetch:1
                                  3⤵
                                    PID:308
                              • C:\Windows\System32\CompPkgSrv.exe
                                C:\Windows\System32\CompPkgSrv.exe -Embedding
                                1⤵
                                  PID:3416

                                Network

                                MITRE ATT&CK Enterprise v6

                                Replay Monitor

                                Loading Replay Monitor...

                                Downloads

                                • C:\Users\Admin\AppData\Local\Temp\nsaEFA5.tmp\Inetc.dll

                                  Filesize

                                  20KB

                                  MD5

                                  50fdadda3e993688401f6f1108fabdb4

                                  SHA1

                                  04a9ae55d0fb726be49809582cea41d75bf22a9a

                                  SHA256

                                  6d6ddc0d2b7d59eb91be44939457858ced5eb23cf4aa93ef33bb600eb28de6f6

                                  SHA512

                                  e9628870feea8c3aaefe22a2af41cf34b1c1778c4a0e81d069f50553ce1a23f68a0ba74b296420b2be92425d4995a43e51c018c2e8197ec2ec39305e87c56be8

                                • C:\Users\Admin\AppData\Local\Temp\nsaEFA5.tmp\Inetc.dll

                                  Filesize

                                  20KB

                                  MD5

                                  50fdadda3e993688401f6f1108fabdb4

                                  SHA1

                                  04a9ae55d0fb726be49809582cea41d75bf22a9a

                                  SHA256

                                  6d6ddc0d2b7d59eb91be44939457858ced5eb23cf4aa93ef33bb600eb28de6f6

                                  SHA512

                                  e9628870feea8c3aaefe22a2af41cf34b1c1778c4a0e81d069f50553ce1a23f68a0ba74b296420b2be92425d4995a43e51c018c2e8197ec2ec39305e87c56be8

                                • C:\Users\Admin\AppData\Local\Temp\nsaEFA5.tmp\Inetc.dll

                                  Filesize

                                  20KB

                                  MD5

                                  50fdadda3e993688401f6f1108fabdb4

                                  SHA1

                                  04a9ae55d0fb726be49809582cea41d75bf22a9a

                                  SHA256

                                  6d6ddc0d2b7d59eb91be44939457858ced5eb23cf4aa93ef33bb600eb28de6f6

                                  SHA512

                                  e9628870feea8c3aaefe22a2af41cf34b1c1778c4a0e81d069f50553ce1a23f68a0ba74b296420b2be92425d4995a43e51c018c2e8197ec2ec39305e87c56be8

                                • C:\Users\Admin\AppData\Local\Temp\nsaEFA5.tmp\Inetc.dll

                                  Filesize

                                  20KB

                                  MD5

                                  50fdadda3e993688401f6f1108fabdb4

                                  SHA1

                                  04a9ae55d0fb726be49809582cea41d75bf22a9a

                                  SHA256

                                  6d6ddc0d2b7d59eb91be44939457858ced5eb23cf4aa93ef33bb600eb28de6f6

                                  SHA512

                                  e9628870feea8c3aaefe22a2af41cf34b1c1778c4a0e81d069f50553ce1a23f68a0ba74b296420b2be92425d4995a43e51c018c2e8197ec2ec39305e87c56be8

                                • C:\Users\Admin\AppData\Local\Temp\nsaEFA5.tmp\Inetc.dll

                                  Filesize

                                  20KB

                                  MD5

                                  50fdadda3e993688401f6f1108fabdb4

                                  SHA1

                                  04a9ae55d0fb726be49809582cea41d75bf22a9a

                                  SHA256

                                  6d6ddc0d2b7d59eb91be44939457858ced5eb23cf4aa93ef33bb600eb28de6f6

                                  SHA512

                                  e9628870feea8c3aaefe22a2af41cf34b1c1778c4a0e81d069f50553ce1a23f68a0ba74b296420b2be92425d4995a43e51c018c2e8197ec2ec39305e87c56be8

                                • C:\Users\Admin\AppData\Local\Temp\nsaEFA5.tmp\Inetc.dll

                                  Filesize

                                  20KB

                                  MD5

                                  50fdadda3e993688401f6f1108fabdb4

                                  SHA1

                                  04a9ae55d0fb726be49809582cea41d75bf22a9a

                                  SHA256

                                  6d6ddc0d2b7d59eb91be44939457858ced5eb23cf4aa93ef33bb600eb28de6f6

                                  SHA512

                                  e9628870feea8c3aaefe22a2af41cf34b1c1778c4a0e81d069f50553ce1a23f68a0ba74b296420b2be92425d4995a43e51c018c2e8197ec2ec39305e87c56be8

                                • C:\Users\Admin\AppData\Local\Temp\nsaEFA5.tmp\Inetc.dll

                                  Filesize

                                  20KB

                                  MD5

                                  50fdadda3e993688401f6f1108fabdb4

                                  SHA1

                                  04a9ae55d0fb726be49809582cea41d75bf22a9a

                                  SHA256

                                  6d6ddc0d2b7d59eb91be44939457858ced5eb23cf4aa93ef33bb600eb28de6f6

                                  SHA512

                                  e9628870feea8c3aaefe22a2af41cf34b1c1778c4a0e81d069f50553ce1a23f68a0ba74b296420b2be92425d4995a43e51c018c2e8197ec2ec39305e87c56be8

                                • C:\Users\Admin\AppData\Local\Temp\nsaEFA5.tmp\Inetc.dll

                                  Filesize

                                  20KB

                                  MD5

                                  50fdadda3e993688401f6f1108fabdb4

                                  SHA1

                                  04a9ae55d0fb726be49809582cea41d75bf22a9a

                                  SHA256

                                  6d6ddc0d2b7d59eb91be44939457858ced5eb23cf4aa93ef33bb600eb28de6f6

                                  SHA512

                                  e9628870feea8c3aaefe22a2af41cf34b1c1778c4a0e81d069f50553ce1a23f68a0ba74b296420b2be92425d4995a43e51c018c2e8197ec2ec39305e87c56be8

                                • C:\Users\Admin\AppData\Local\Temp\nsaEFA5.tmp\Inetc.dll

                                  Filesize

                                  20KB

                                  MD5

                                  50fdadda3e993688401f6f1108fabdb4

                                  SHA1

                                  04a9ae55d0fb726be49809582cea41d75bf22a9a

                                  SHA256

                                  6d6ddc0d2b7d59eb91be44939457858ced5eb23cf4aa93ef33bb600eb28de6f6

                                  SHA512

                                  e9628870feea8c3aaefe22a2af41cf34b1c1778c4a0e81d069f50553ce1a23f68a0ba74b296420b2be92425d4995a43e51c018c2e8197ec2ec39305e87c56be8

                                • C:\Users\Admin\AppData\Local\Temp\nsaEFA5.tmp\Inetc.dll

                                  Filesize

                                  20KB

                                  MD5

                                  50fdadda3e993688401f6f1108fabdb4

                                  SHA1

                                  04a9ae55d0fb726be49809582cea41d75bf22a9a

                                  SHA256

                                  6d6ddc0d2b7d59eb91be44939457858ced5eb23cf4aa93ef33bb600eb28de6f6

                                  SHA512

                                  e9628870feea8c3aaefe22a2af41cf34b1c1778c4a0e81d069f50553ce1a23f68a0ba74b296420b2be92425d4995a43e51c018c2e8197ec2ec39305e87c56be8

                                • C:\Users\Admin\AppData\Local\Temp\nsaEFA5.tmp\System.dll

                                  Filesize

                                  11KB

                                  MD5

                                  00a0194c20ee912257df53bfe258ee4a

                                  SHA1

                                  d7b4e319bc5119024690dc8230b9cc919b1b86b2

                                  SHA256

                                  dc4da2ccadb11099076926b02764b2b44ad8f97cd32337421a4cc21a3f5448f3

                                  SHA512

                                  3b38a2c17996c3b77ebf7b858a6c37415615e756792132878d8eddbd13cb06710b7da0e8b58104768f8e475fc93e8b44b3b1ab6f70ddf52edee111aaf5ef5667

                                • C:\Users\Admin\AppData\Local\Temp\nsaEFA5.tmp\nsProcess.dll

                                  Filesize

                                  4KB

                                  MD5

                                  05450face243b3a7472407b999b03a72

                                  SHA1

                                  ffd88af2e338ae606c444390f7eaaf5f4aef2cd9

                                  SHA256

                                  95fe9d92512ff2318cc2520311ef9145b2cee01209ab0e1b6e45c7ce1d4d0e89

                                  SHA512

                                  f4cbe30166aff20a226a7150d93a876873ba699d80d7e9f46f32a9b4753fa7966c3113a3124340b39ca67a13205463a413e740e541e742903e3f89af5a53ad3b

                                • C:\Users\Admin\AppData\Local\Temp\nsaEFA5.tmp\nsProcess.dll

                                  Filesize

                                  4KB

                                  MD5

                                  05450face243b3a7472407b999b03a72

                                  SHA1

                                  ffd88af2e338ae606c444390f7eaaf5f4aef2cd9

                                  SHA256

                                  95fe9d92512ff2318cc2520311ef9145b2cee01209ab0e1b6e45c7ce1d4d0e89

                                  SHA512

                                  f4cbe30166aff20a226a7150d93a876873ba699d80d7e9f46f32a9b4753fa7966c3113a3124340b39ca67a13205463a413e740e541e742903e3f89af5a53ad3b

                                • \??\pipe\LOCAL\crashpad_2716_AXTTURIRCRXTUWNW

                                  MD5

                                  d41d8cd98f00b204e9800998ecf8427e

                                  SHA1

                                  da39a3ee5e6b4b0d3255bfef95601890afd80709

                                  SHA256

                                  e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                                  SHA512

                                  cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                                • memory/308-178-0x0000000000000000-mapping.dmp

                                • memory/360-161-0x0000000000000000-mapping.dmp

                                • memory/452-176-0x0000000000000000-mapping.dmp

                                • memory/640-173-0x0000000000000000-mapping.dmp

                                • memory/1272-157-0x0000000000000000-mapping.dmp

                                • memory/1356-163-0x0000000000000000-mapping.dmp

                                • memory/1420-167-0x0000000000000000-mapping.dmp

                                • memory/1488-171-0x0000000000000000-mapping.dmp

                                • memory/1952-143-0x0000000000641000-0x0000000000644000-memory.dmp

                                  Filesize

                                  12KB

                                • memory/1952-137-0x0000000002E11000-0x0000000002E14000-memory.dmp

                                  Filesize

                                  12KB

                                • memory/2644-154-0x0000000000000000-mapping.dmp

                                • memory/2716-147-0x0000000000000000-mapping.dmp

                                • memory/3000-153-0x0000000000000000-mapping.dmp

                                • memory/3272-159-0x0000000000000000-mapping.dmp

                                • memory/3452-169-0x0000000000000000-mapping.dmp

                                • memory/3828-165-0x0000000000000000-mapping.dmp

                                • memory/4352-175-0x0000000000000000-mapping.dmp

                                • memory/4404-151-0x0000000000000000-mapping.dmp

                                • memory/4656-174-0x0000000000000000-mapping.dmp