Analysis

  • max time kernel
    149s
  • max time network
    157s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    02/10/2021, 01:57

General

  • Target
    f04df7f852cac1d70c7e8a5b746c2d81.exe
  • Size 613KB
  • Sample211002-cdbnmaddhp
  • SHA256 30afeeb95ae261026f5e0a300b4fa3b7a08a920cd7b0372cbc25cfb1abee4c04
  • MD5 SHA1 SHA512
Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • 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.

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Kills process with taskkill 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f04df7f852cac1d70c7e8a5b746c2d81.exe
    "C:\Users\Admin\AppData\Local\Temp\f04df7f852cac1d70c7e8a5b746c2d81.exe"
    1⤵
    • Drops file in Drivers directory
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:664
    • C:\Program Files\Mozilla Firefox\firefox.exe
      "C:\Program Files\Mozilla Firefox\firefox.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1164
      • C:\Program Files\Mozilla Firefox\firefox.exe
        "C:\Program Files\Mozilla Firefox\firefox.exe"
        3⤵
        • Checks processor information in registry
        PID:1200
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe"
      2⤵
      • Enumerates system info in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:424
      • 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=89.0.4389.114 --initial-client-data=0xc8,0xcc,0xd0,0xa4,0xd4,0x7ffac9744f50,0x7ffac9744f60,0x7ffac9744f70
        3⤵
          PID:3164
        • C:\Program Files\Google\Chrome\Application\chrome.exe
          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --field-trial-handle=1412,11799311287149693412,8615743151824545400,131072 --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1592 /prefetch:2
          3⤵
            PID:1176
          • C:\Program Files\Google\Chrome\Application\chrome.exe
            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=1412,11799311287149693412,8615743151824545400,131072 --lang=en-US --service-sandbox-type=network --mojo-platform-channel-handle=1712 /prefetch:8
            3⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:3460
          • C:\Program Files\Google\Chrome\Application\chrome.exe
            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=1412,11799311287149693412,8615743151824545400,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2064 /prefetch:8
            3⤵
              PID:1820
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1412,11799311287149693412,8615743151824545400,131072 --lang=en-US --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=7 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=2532 /prefetch:1
              3⤵
                PID:2388
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1412,11799311287149693412,8615743151824545400,131072 --lang=en-US --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=2540 /prefetch:1
                3⤵
                  PID:3848
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1412,11799311287149693412,8615743151824545400,131072 --lang=en-US --extension-process --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=4 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3372 /prefetch:1
                  3⤵
                    PID:1484
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1412,11799311287149693412,8615743151824545400,131072 --lang=en-US --extension-process --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3416 /prefetch:1
                    3⤵
                      PID:2304
                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1412,11799311287149693412,8615743151824545400,131072 --lang=en-US --extension-process --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3496 /prefetch:1
                      3⤵
                        PID:3868
                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1412,11799311287149693412,8615743151824545400,131072 --lang=en-US --extension-process --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3572 /prefetch:1
                        3⤵
                          PID:2488
                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --field-trial-handle=1412,11799311287149693412,8615743151824545400,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5248 /prefetch:8
                          3⤵
                          • Suspicious behavior: EnumeratesProcesses
                          PID:4644
                        • C:\Program Files\Google\Chrome\Application\89.0.4389.114\Installer\chrmstp.exe
                          "C:\Program Files\Google\Chrome\Application\89.0.4389.114\Installer\chrmstp.exe" --configure-user-settings --verbose-logging --system-level --channel --force-configure-user-settings
                          3⤵
                            PID:4964
                            • C:\Program Files\Google\Chrome\Application\89.0.4389.114\Installer\chrmstp.exe
                              "C:\Program Files\Google\Chrome\Application\89.0.4389.114\Installer\chrmstp.exe" --type=crashpad-handler /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Windows\TEMP\Crashpad --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=89.0.4389.114 --initial-client-data=0x23c,0x240,0x244,0x218,0x248,0x7ff6710ca890,0x7ff6710ca8a0,0x7ff6710ca8b0
                              4⤵
                                PID:5028
                            • C:\Program Files\Google\Chrome\Application\chrome.exe
                              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --field-trial-handle=1412,11799311287149693412,8615743151824545400,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5852 /prefetch:8
                              3⤵
                              • Suspicious behavior: EnumeratesProcesses
                              PID:2900
                            • C:\Program Files\Google\Chrome\Application\chrome.exe
                              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --field-trial-handle=1412,11799311287149693412,8615743151824545400,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5712 /prefetch:8
                              3⤵
                              • Suspicious behavior: EnumeratesProcesses
                              PID:4104
                            • 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 --field-trial-handle=1412,11799311287149693412,8615743151824545400,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=1940 /prefetch:8
                              3⤵
                                PID:964
                            • C:\Windows\SysWOW64\cmd.exe
                              "cmd.exe" /C taskkill /F /PID 664 && choice /C Y /N /D Y /T 3 & Del "C:\Users\Admin\AppData\Local\Temp\f04df7f852cac1d70c7e8a5b746c2d81.exe"
                              2⤵
                                PID:1408
                                • C:\Windows\SysWOW64\taskkill.exe
                                  taskkill /F /PID 664
                                  3⤵
                                  • Kills process with taskkill
                                  • Suspicious use of AdjustPrivilegeToken
                                  PID:1860
                              • C:\Windows\SysWOW64\cmd.exe
                                "cmd.exe" /C taskkill /F /PID 664 && choice /C Y /N /D Y /T 3 & Del "C:\Users\Admin\AppData\Local\Temp\f04df7f852cac1d70c7e8a5b746c2d81.exe"
                                2⤵
                                  PID:1160
                                  • C:\Windows\SysWOW64\taskkill.exe
                                    taskkill /F /PID 664
                                    3⤵
                                    • Kills process with taskkill
                                    • Suspicious use of AdjustPrivilegeToken
                                    PID:3012

                              Network

                                    MITRE ATT&CK Enterprise v6

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                                    Downloads

                                    memory/664-118-0x0000000005400000-0x00000000054CD000-memory.dmp

                                    memory/664-122-0x0000000002513000-0x0000000002514000-memory.dmp

                                    memory/664-123-0x0000000002514000-0x0000000002516000-memory.dmp

                                    memory/664-120-0x0000000002510000-0x0000000002511000-memory.dmp

                                    memory/664-121-0x0000000002512000-0x0000000002513000-memory.dmp

                                    memory/664-119-0x00000000028F0000-0x00000000028FB000-memory.dmp

                                    memory/664-117-0x0000000004F00000-0x0000000004F01000-memory.dmp

                                    memory/664-114-0x0000000002230000-0x00000000022BE000-memory.dmp

                                    memory/664-116-0x0000000004E30000-0x0000000004EFF000-memory.dmp

                                    memory/664-115-0x0000000000400000-0x000000000051E000-memory.dmp

                                    memory/1176-207-0x00007FFAEA460000-0x00007FFAEA461000-memory.dmp