Analysis

  • max time kernel
    151s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/12/2022, 17:37

General

  • Target
    file.exe
  • Size 288KB
  • Sample221230-v65fhsbc8y
  • SHA256 1d3c27912c2e71fe2c9c353abdbe8a4a9c76711f775dd7e5ff8e3badc2710247
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Detects Smokeloader packer 1 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 3 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Checks processor information in registry 2 TTPs 43 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 39 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:4264
  • C:\Users\Admin\AppData\Local\Temp\D9F9.exe
    C:\Users\Admin\AppData\Local\Temp\D9F9.exe
    1⤵
    • Executes dropped EXE
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:4216
    • C:\Users\Admin\AppData\Local\Temp\Sppyteaet.exe
      "C:\Users\Admin\AppData\Local\Temp\Sppyteaet.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:220
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\syswow64\rundll32.exe" "C:\Windows\syswow64\shell32.dll",#61
      2⤵
      • Checks processor information in registry
      • Suspicious use of AdjustPrivilegeToken
      PID:3640
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3640 -s 1324
        3⤵
        • Program crash
        PID:3212
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4216 -s 1444
      2⤵
      • Program crash
      PID:1084
  • 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=0xfc,0x100,0x104,0xd8,0x108,0x7ffd9d5b4f50,0x7ffd9d5b4f60,0x7ffd9d5b4f70
    1⤵
      PID:3688
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe" --no-first-run --no-default-browser-check --silent-launch --disable-backgrounding-occluded-windows --disable-background-timer-throttling --ran-launcher --profile-directory="Default"
      1⤵
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Enumerates system info in registry
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3616
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --field-trial-handle=1668,11407513532528346108,8227552092810883122,131072 --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1676 /prefetch:2
        2⤵
          PID:4940
        • 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=1668,11407513532528346108,8227552092810883122,131072 --lang=en-US --service-sandbox-type=network --mojo-platform-channel-handle=2016 /prefetch:8
          2⤵
            PID:3172
          • 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=1668,11407513532528346108,8227552092810883122,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2376 /prefetch:8
            2⤵
              PID:4816
            • 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=1668,11407513532528346108,8227552092810883122,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=3552 /prefetch:8
              2⤵
                PID:4920
              • 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=1668,11407513532528346108,8227552092810883122,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3852 /prefetch:8
                2⤵
                  PID:5028
                • C:\Windows\system32\WerFault.exe
                  C:\Windows\system32\WerFault.exe -u -p 3616 -s 3944
                  2⤵
                  • Program crash
                  PID:3096
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3640 -ip 3640
                1⤵
                  PID:876
                • C:\Windows\System32\CompPkgSrv.exe
                  C:\Windows\System32\CompPkgSrv.exe -Embedding
                  1⤵
                    PID:4896
                  • C:\Windows\system32\WerFault.exe
                    C:\Windows\system32\WerFault.exe -pss -s 512 -p 3616 -ip 3616
                    1⤵
                      PID:4400
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 4216 -ip 4216
                      1⤵
                        PID:2080

                      Network

                            MITRE ATT&CK Enterprise v6

                            Replay Monitor

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                            Downloads

                            D9F9.exe

                            • Path C:\Users\Admin\AppData\Local\Temp\D9F9.exe
                            • Size 5.6MB
                            • SHA256 4b732278b4b10b0c63641a767966c0e9e869283a8336bf5007b666065b2cf9a4
                            • MD5 SHA1 SHA512 SSDEEP

                            D9F9.exe

                            • Path C:\Users\Admin\AppData\Local\Temp\D9F9.exe
                            • Size 5.6MB
                            • SHA256 4b732278b4b10b0c63641a767966c0e9e869283a8336bf5007b666065b2cf9a4
                            • MD5 SHA1 SHA512 SSDEEP

                            Sppyteaet.exe

                            • Path C:\Users\Admin\AppData\Local\Temp\Sppyteaet.exe
                            • Size 1.3MB
                            • SHA256 366ee3319c995b995fcfcc3f2228a18a09d0461a94964b4b4ad9a89dcbf669f4
                            • MD5 SHA1 SHA512 SSDEEP

                            Sppyteaet.exe

                            • Path C:\Users\Admin\AppData\Local\Temp\Sppyteaet.exe
                            • Size 1.3MB
                            • SHA256 366ee3319c995b995fcfcc3f2228a18a09d0461a94964b4b4ad9a89dcbf669f4
                            • MD5 SHA1 SHA512 SSDEEP

                            memory/220-177-0x0000000000400000-0x0000000000534000-memory.dmp

                            memory/220-174-0x0000000000400000-0x0000000000534000-memory.dmp

                            memory/220-173-0x0000000000400000-0x0000000000534000-memory.dmp

                            memory/220-169-0x0000000000400000-0x0000000000534000-memory.dmp

                            memory/220-175-0x0000000000400000-0x0000000000534000-memory.dmp

                            memory/220-176-0x0000000000400000-0x0000000000534000-memory.dmp

                            memory/220-178-0x0000000000400000-0x0000000000534000-memory.dmp

                            memory/2764-217-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-214-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-147-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-148-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-149-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-150-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-151-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-152-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-153-0x00000000029B0000-0x00000000029C0000-memory.dmp

                            memory/2764-154-0x0000000007380000-0x0000000007390000-memory.dmp

                            memory/2764-155-0x00000000008C0000-0x00000000008D0000-memory.dmp

                            memory/2764-156-0x00000000008C0000-0x00000000008D0000-memory.dmp

                            memory/2764-247-0x00000000029D0000-0x00000000029E0000-memory.dmp

                            memory/2764-145-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-144-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-160-0x0000000007380000-0x0000000007390000-memory.dmp

                            memory/2764-161-0x00000000008C0000-0x00000000008D0000-memory.dmp

                            memory/2764-162-0x00000000008C0000-0x00000000008D0000-memory.dmp

                            memory/2764-246-0x0000000000950000-0x0000000000960000-memory.dmp

                            memory/2764-245-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-239-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-143-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-142-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-141-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-140-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-139-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-138-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-137-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-136-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-238-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-237-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-179-0x0000000008720000-0x0000000008848000-memory.dmp

                            memory/2764-236-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-235-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-234-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-233-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-232-0x0000000007480000-0x0000000007490000-memory.dmp

                            memory/2764-231-0x00000000029D0000-0x00000000029E0000-memory.dmp

                            memory/2764-230-0x0000000007480000-0x0000000007490000-memory.dmp

                            memory/2764-229-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-188-0x0000000008720000-0x0000000008848000-memory.dmp

                            memory/2764-228-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-227-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-226-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-225-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-224-0x0000000007480000-0x0000000007490000-memory.dmp

                            memory/2764-223-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-222-0x0000000007480000-0x0000000007490000-memory.dmp

                            memory/2764-221-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-220-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-213-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-146-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-219-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-215-0x00000000029D0000-0x00000000029E0000-memory.dmp

                            memory/2764-203-0x0000000008720000-0x0000000008848000-memory.dmp

                            memory/2764-212-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-205-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-206-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-207-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-208-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-209-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-210-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/2764-211-0x00000000029A0000-0x00000000029B0000-memory.dmp

                            memory/3640-196-0x0000000004100000-0x0000000004240000-memory.dmp

                            memory/3640-192-0x0000000001200000-0x0000000001C25000-memory.dmp

                            memory/3640-195-0x0000000004100000-0x0000000004240000-memory.dmp

                            memory/3640-200-0x00000000034F0000-0x0000000004034000-memory.dmp

                            memory/3640-194-0x00000000034F0000-0x0000000004034000-memory.dmp

                            memory/3640-198-0x0000000004100000-0x0000000004240000-memory.dmp

                            memory/3640-197-0x0000000004100000-0x0000000004240000-memory.dmp

                            memory/4216-189-0x0000000007EE0000-0x0000000008020000-memory.dmp

                            memory/4216-183-0x0000000007EE0000-0x0000000008020000-memory.dmp

                            memory/4216-201-0x0000000000400000-0x00000000009B4000-memory.dmp

                            memory/4216-202-0x0000000007000000-0x0000000007B44000-memory.dmp

                            memory/4216-190-0x0000000007EE0000-0x0000000008020000-memory.dmp

                            memory/4216-204-0x0000000000400000-0x00000000009B4000-memory.dmp

                            memory/4216-186-0x0000000007000000-0x0000000007B44000-memory.dmp

                            memory/4216-187-0x0000000007EE0000-0x0000000008020000-memory.dmp

                            memory/4216-185-0x0000000007EE0000-0x0000000008020000-memory.dmp

                            memory/4216-184-0x0000000007EE0000-0x0000000008020000-memory.dmp

                            memory/4216-163-0x00000000026C4000-0x0000000002C25000-memory.dmp

                            memory/4216-182-0x0000000007EE0000-0x0000000008020000-memory.dmp

                            memory/4216-181-0x0000000007EE0000-0x0000000008020000-memory.dmp

                            memory/4216-180-0x0000000007000000-0x0000000007B44000-memory.dmp

                            memory/4216-164-0x0000000002C30000-0x00000000031E3000-memory.dmp

                            memory/4216-165-0x0000000000400000-0x00000000009B4000-memory.dmp

                            memory/4264-135-0x0000000000400000-0x0000000000465000-memory.dmp

                            memory/4264-134-0x0000000000400000-0x0000000000465000-memory.dmp

                            memory/4264-133-0x00000000005E0000-0x00000000005E9000-memory.dmp

                            memory/4264-132-0x00000000004E9000-0x00000000004FA000-memory.dmp