Analysis

  • max time kernel
    150s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/01/2023, 04:08

General

  • Target
    file.exe
  • Size 239KB
  • Sample230101-ep8hvaed2s
  • SHA256 8d28354bae911d7e3f23402ffeb9c3e7bd8d03342aa2696bcb733a246e8767a2
  • 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 3 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

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

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

  • Program crash 10 IoCs
  • Checks SCSI registry key(s) 3 TTPs 6 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
  • Modifies Internet Explorer settings 1 TTPs 4 IoCs
  • Modifies registry class 43 IoCs
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 5 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:2632
  • C:\Users\Admin\AppData\Local\Temp\D46C.exe
    C:\Users\Admin\AppData\Local\Temp\D46C.exe
    1⤵
    • Executes dropped EXE
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:3716
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3716 -s 1016
      2⤵
      • Program crash
      PID:2752
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3716 -s 1080
      2⤵
      • Program crash
      PID:3696
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3716 -s 1156
      2⤵
      • Program crash
      PID:3652
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3716 -s 1084
      2⤵
      • Program crash
      PID:3000
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3716 -s 1084
      2⤵
      • Program crash
      PID:2700
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3716 -s 1192
      2⤵
      • Program crash
      PID:2284
    • C:\Users\Admin\AppData\Local\Temp\Iqpoqhfidqa.exe
      "C:\Users\Admin\AppData\Local\Temp\Iqpoqhfidqa.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:852
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 852 -s 464
        3⤵
        • Program crash
        PID:2668
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3716 -s 1468
      2⤵
      • Program crash
      PID:3160
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\syswow64\rundll32.exe" "C:\Windows\syswow64\shell32.dll",#61
      2⤵
      • Suspicious use of SetThreadContext
      • Checks processor information in registry
      • Modifies registry class
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3032
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\system32\rundll32.exe" "C:\Windows\system32\shell32.dll",#61 30829
        3⤵
        • Modifies registry class
        • Suspicious use of FindShellTrayWindow
        PID:3820
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3716 -s 1476
      2⤵
      • Program crash
      PID:972
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 204 -p 3716 -ip 3716
    1⤵
      PID:220
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3716 -ip 3716
      1⤵
        PID:4004
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 3716 -ip 3716
        1⤵
          PID:3632
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 3716 -ip 3716
          1⤵
            PID:2724
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 3716 -ip 3716
            1⤵
              PID:5000
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 3716 -ip 3716
              1⤵
                PID:4184
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 600 -p 3716 -ip 3716
                1⤵
                  PID:3600
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 588 -p 852 -ip 852
                  1⤵
                    PID:1304
                  • 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:4496
                    • 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,0x100,0x104,0xd8,0x108,0x7fff2dbd4f50,0x7fff2dbd4f60,0x7fff2dbd4f70
                      2⤵
                        PID:3836
                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --field-trial-handle=1660,1622464205748093142,11745830548726543038,131072 --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1712 /prefetch:2
                        2⤵
                          PID:3060
                        • 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=1660,1622464205748093142,11745830548726543038,131072 --lang=en-US --service-sandbox-type=network --mojo-platform-channel-handle=1988 /prefetch:8
                          2⤵
                            PID:2600
                          • 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=1660,1622464205748093142,11745830548726543038,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2400 /prefetch:8
                            2⤵
                              PID:940
                            • 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=1660,1622464205748093142,11745830548726543038,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=3572 /prefetch:8
                              2⤵
                                PID:220
                              • C:\Windows\system32\WerFault.exe
                                C:\Windows\system32\WerFault.exe -u -p 4496 -s 3600
                                2⤵
                                • Program crash
                                PID:3688
                            • C:\Windows\System32\CompPkgSrv.exe
                              C:\Windows\System32\CompPkgSrv.exe -Embedding
                              1⤵
                                PID:5004
                              • C:\Windows\System32\rundll32.exe
                                C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                                1⤵
                                  PID:2996
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 3716 -ip 3716
                                  1⤵
                                    PID:5064
                                  • C:\Windows\system32\WerFault.exe
                                    C:\Windows\system32\WerFault.exe -pss -s 488 -p 4496 -ip 4496
                                    1⤵
                                      PID:884
                                    • C:\Users\Admin\AppData\Roaming\vdtfitg
                                      C:\Users\Admin\AppData\Roaming\vdtfitg
                                      1⤵
                                      • Executes dropped EXE
                                      • Checks SCSI registry key(s)
                                      • Suspicious behavior: MapViewOfSection
                                      PID:3888

                                    Network

                                          MITRE ATT&CK Enterprise v6

                                          Replay Monitor

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                                          Downloads

                                          D46C.exe

                                          • Path C:\Users\Admin\AppData\Local\Temp\D46C.exe
                                          • Size 6.6MB
                                          • SHA256 bdac77e525ed9c3349d65eceaa355430920505dc6bffcfb6c39e732a809ede48
                                          • MD5 SHA1 SHA512 SSDEEP

                                          D46C.exe

                                          • Path C:\Users\Admin\AppData\Local\Temp\D46C.exe
                                          • Size 6.6MB
                                          • SHA256 bdac77e525ed9c3349d65eceaa355430920505dc6bffcfb6c39e732a809ede48
                                          • MD5 SHA1 SHA512 SSDEEP

                                          Iqpoqhfidqa.exe

                                          • Path C:\Users\Admin\AppData\Local\Temp\Iqpoqhfidqa.exe
                                          • Size 1.4MB
                                          • SHA256 57c3c745da3abd3efb910c157bad430f5dc74a3aab48334e4f8f1a93c68d7d67
                                          • MD5 SHA1 SHA512 SSDEEP

                                          Iqpoqhfidqa.exe

                                          • Path C:\Users\Admin\AppData\Local\Temp\Iqpoqhfidqa.exe
                                          • Size 1.4MB
                                          • SHA256 57c3c745da3abd3efb910c157bad430f5dc74a3aab48334e4f8f1a93c68d7d67
                                          • MD5 SHA1 SHA512 SSDEEP

                                          Iqpoqhfidqa.tmp

                                          • Path C:\Users\Admin\AppData\Local\Temp\Iqpoqhfidqa.tmp
                                          • Size 3.5MB
                                          • SHA256 c34565954052e885c9978fc2b50cf32cc98a67ba9851689101ed5bfffa9bdce4
                                          • MD5 SHA1 SHA512 SSDEEP

                                          JavaDeployReg.log

                                          • Path C:\Users\Admin\AppData\Local\Temp\JavaDeployReg.log
                                          • Size 25KB
                                          • SHA256 abab5ac03fbe9880afee47c6a0e4877eb74528095a8a498d242da0f4966212b0
                                          • MD5 SHA1 SHA512 SSDEEP

                                          WIJBFSKT-20221111-1347a.log

                                          • Path C:\Users\Admin\AppData\Local\Temp\WIJBFSKT-20221111-1347a.log
                                          • Size 178KB
                                          • SHA256 5a9fd0a5d97085e8678b1bee6d515d860b60fabf0c9fbc131f95970687a09b64
                                          • MD5 SHA1 SHA512 SSDEEP

                                          aria-debug-1468.log

                                          • Path C:\Users\Admin\AppData\Local\Temp\aria-debug-1468.log
                                          • Size 470B
                                          • SHA256 b8ddf80a0a9645400fc5f03586c97f5e3e4a7357fe51477b84288f76a2378bce
                                          • MD5 SHA1 SHA512

                                          dd_vcredistUI1607.txt

                                          • Path C:\Users\Admin\AppData\Local\Temp\dd_vcredistUI1607.txt
                                          • Size 11KB
                                          • SHA256 16dde09b399ccd3f9aaaf850ac67e18a89ee3c1251e0cad963a2f43fbfb42e67
                                          • MD5 SHA1 SHA512 SSDEEP

                                          wct19BD.tmp

                                          • Path C:\Users\Admin\AppData\Local\Temp\wct19BD.tmp
                                          • Size 63KB
                                          • SHA256 543796a1b343b4ebc0285d89cb8eb70667ac7b513da37495e38003704e9d88d7
                                          • MD5 SHA1 SHA512 SSDEEP

                                          vdtfitg

                                          • Path C:\Users\Admin\AppData\Roaming\vdtfitg
                                          • Size 239KB
                                          • SHA256 8d28354bae911d7e3f23402ffeb9c3e7bd8d03342aa2696bcb733a246e8767a2
                                          • MD5 SHA1 SHA512 SSDEEP

                                          vdtfitg

                                          • Path C:\Users\Admin\AppData\Roaming\vdtfitg
                                          • Size 239KB
                                          • SHA256 8d28354bae911d7e3f23402ffeb9c3e7bd8d03342aa2696bcb733a246e8767a2
                                          • MD5 SHA1 SHA512 SSDEEP

                                          memory/852-182-0x0000000002790000-0x00000000028C4000-memory.dmp

                                          memory/852-186-0x0000000000400000-0x0000000000588000-memory.dmp

                                          memory/852-185-0x00000000023B0000-0x0000000002505000-memory.dmp

                                          memory/852-184-0x00000000021DE000-0x000000000231E000-memory.dmp

                                          memory/852-172-0x0000000002790000-0x00000000028C4000-memory.dmp

                                          memory/852-179-0x0000000002790000-0x00000000028C4000-memory.dmp

                                          memory/852-176-0x0000000002790000-0x00000000028C4000-memory.dmp

                                          memory/852-180-0x0000000002790000-0x00000000028C4000-memory.dmp

                                          memory/852-178-0x0000000002790000-0x00000000028C4000-memory.dmp

                                          memory/852-177-0x0000000002790000-0x00000000028C4000-memory.dmp

                                          memory/2632-135-0x0000000000400000-0x0000000000459000-memory.dmp

                                          memory/2632-132-0x000000000057D000-0x000000000058D000-memory.dmp

                                          memory/2632-134-0x0000000000400000-0x0000000000459000-memory.dmp

                                          memory/2632-133-0x0000000000520000-0x0000000000529000-memory.dmp

                                          memory/2732-183-0x0000000008620000-0x0000000008748000-memory.dmp

                                          memory/2732-203-0x0000000008620000-0x0000000008748000-memory.dmp

                                          memory/2732-192-0x0000000008620000-0x0000000008748000-memory.dmp

                                          memory/3032-189-0x00000000034F0000-0x0000000003630000-memory.dmp

                                          memory/3032-197-0x00000000028D0000-0x0000000003422000-memory.dmp

                                          memory/3032-160-0x00000000034F0000-0x0000000003630000-memory.dmp

                                          memory/3032-169-0x00000000028D0000-0x0000000003422000-memory.dmp

                                          memory/3032-159-0x00000000028D0000-0x0000000003422000-memory.dmp

                                          memory/3032-163-0x0000000000510000-0x0000000000F42000-memory.dmp

                                          memory/3032-170-0x00000000034F0000-0x0000000003630000-memory.dmp

                                          memory/3032-171-0x00000000034F0000-0x0000000003630000-memory.dmp

                                          memory/3032-161-0x00000000034F0000-0x0000000003630000-memory.dmp

                                          memory/3032-193-0x0000000003569000-0x000000000356B000-memory.dmp

                                          memory/3032-190-0x00000000034F0000-0x0000000003630000-memory.dmp

                                          memory/3032-188-0x00000000034F0000-0x0000000003630000-memory.dmp

                                          memory/3032-187-0x00000000034F0000-0x0000000003630000-memory.dmp

                                          memory/3716-201-0x0000000004AF0000-0x0000000005642000-memory.dmp

                                          memory/3716-141-0x0000000003130000-0x00000000039F3000-memory.dmp

                                          memory/3716-150-0x0000000005730000-0x0000000005870000-memory.dmp

                                          memory/3716-151-0x0000000005730000-0x0000000005870000-memory.dmp

                                          memory/3716-149-0x0000000005730000-0x0000000005870000-memory.dmp

                                          memory/3716-148-0x0000000004AF0000-0x0000000005642000-memory.dmp

                                          memory/3716-147-0x0000000004AF0000-0x0000000005642000-memory.dmp

                                          memory/3716-181-0x0000000000400000-0x0000000000CD0000-memory.dmp

                                          memory/3716-154-0x0000000005730000-0x0000000005870000-memory.dmp

                                          memory/3716-143-0x0000000000400000-0x0000000000CD0000-memory.dmp

                                          memory/3716-156-0x0000000005730000-0x0000000005870000-memory.dmp

                                          memory/3716-155-0x0000000004AF0000-0x0000000005642000-memory.dmp

                                          memory/3716-139-0x0000000000400000-0x0000000000CD0000-memory.dmp

                                          memory/3716-152-0x0000000005730000-0x0000000005870000-memory.dmp

                                          memory/3716-142-0x0000000000400000-0x0000000000CD0000-memory.dmp

                                          memory/3716-140-0x0000000002AB7000-0x000000000312E000-memory.dmp

                                          memory/3716-157-0x0000000005730000-0x0000000005870000-memory.dmp

                                          memory/3716-202-0x0000000000400000-0x0000000000CD0000-memory.dmp

                                          memory/3716-153-0x0000000005730000-0x0000000005870000-memory.dmp

                                          memory/3820-200-0x0000027DFAD40000-0x0000027DFAFF5000-memory.dmp

                                          memory/3820-194-0x0000027DFC7A0000-0x0000027DFC8E0000-memory.dmp

                                          memory/3820-198-0x0000000000A50000-0x0000000000CF3000-memory.dmp

                                          memory/3820-196-0x0000027DFC7A0000-0x0000027DFC8E0000-memory.dmp

                                          memory/3820-195-0x0000027DFAD40000-0x0000027DFAFF5000-memory.dmp

                                          memory/3888-206-0x000000000056D000-0x000000000057D000-memory.dmp

                                          memory/3888-207-0x0000000000400000-0x0000000000459000-memory.dmp

                                          memory/3888-208-0x0000000000400000-0x0000000000459000-memory.dmp