Analysis

  • max time kernel
    150s
  • 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
    01/01/2023, 03:32

General

  • Target
    file.exe
  • Size 239KB
  • Sample230101-d3l2bsbb52
  • SHA256 cef0a97ab84a4b4239d22008c571317702775eb85799e544bc1cb13f2aa5ea73
  • 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.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 4 IoCs
  • 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 10 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 42 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 19 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 51 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 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:1420
  • C:\Users\Admin\AppData\Local\Temp\F10C.exe
    C:\Users\Admin\AppData\Local\Temp\F10C.exe
    1⤵
    • Executes dropped EXE
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:4248
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4248 -s 1016
      2⤵
      • Program crash
      PID:4228
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4248 -s 1068
      2⤵
      • Program crash
      PID:3264
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4248 -s 1088
      2⤵
      • Program crash
      PID:3692
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4248 -s 1188
      2⤵
      • Program crash
      PID:3860
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4248 -s 1188
      2⤵
      • Program crash
      PID:3416
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4248 -s 1212
      2⤵
      • Program crash
      PID:5008
    • 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:4568
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4568 -s 456
        3⤵
        • Program crash
        PID:1668
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4248 -s 1468
      2⤵
      • Program crash
      PID:448
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\syswow64\rundll32.exe" "C:\Windows\syswow64\shell32.dll",#61
      2⤵
      • Accesses Microsoft Outlook accounts
      • Accesses Microsoft Outlook profiles
      • Checks processor information in registry
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • outlook_office_path
      • outlook_win_path
      PID:2304
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4248 -s 1232
      2⤵
      • Program crash
      PID:5020
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 384 -p 4248 -ip 4248
    1⤵
      PID:5076
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 124 -p 4248 -ip 4248
      1⤵
        PID:808
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 4248 -ip 4248
        1⤵
          PID:940
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4248 -ip 4248
          1⤵
            PID:4184
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 4248 -ip 4248
            1⤵
              PID:4636
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 584 -p 4248 -ip 4248
              1⤵
                PID:3112
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4248 -ip 4248
                1⤵
                  PID:4808
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 612 -p 4248 -ip 4248
                  1⤵
                    PID:5116
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 620 -p 4568 -ip 4568
                    1⤵
                      PID:1968
                    • 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:4492
                      • 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,0x100,0x104,0xd8,0x108,0x7ffec8d44f50,0x7ffec8d44f60,0x7ffec8d44f70
                        2⤵
                          PID:628
                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --field-trial-handle=1632,5052116532225585238,3658711054046441868,131072 --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1640 /prefetch:2
                          2⤵
                            PID:1936
                          • 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=1632,5052116532225585238,3658711054046441868,131072 --lang=en-US --service-sandbox-type=network --mojo-platform-channel-handle=1776 /prefetch:8
                            2⤵
                              PID:1868
                            • 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=1632,5052116532225585238,3658711054046441868,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2400 /prefetch:8
                              2⤵
                                PID:3744
                              • C:\Windows\system32\WerFault.exe
                                C:\Windows\system32\WerFault.exe -u -p 4492 -s 3588
                                2⤵
                                • Program crash
                                PID:3480
                            • C:\Windows\System32\CompPkgSrv.exe
                              C:\Windows\System32\CompPkgSrv.exe -Embedding
                              1⤵
                                PID:4772
                              • C:\Windows\system32\WerFault.exe
                                C:\Windows\system32\WerFault.exe -pss -s 596 -p 4492 -ip 4492
                                1⤵
                                  PID:4584

                                Network

                                      MITRE ATT&CK Enterprise v6

                                      Replay Monitor

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                                      Downloads

                                      F10C.exe

                                      • Path C:\Users\Admin\AppData\Local\Temp\F10C.exe
                                      • Size 6.6MB
                                      • SHA256 bdac77e525ed9c3349d65eceaa355430920505dc6bffcfb6c39e732a809ede48
                                      • MD5 SHA1 SHA512 SSDEEP

                                      F10C.exe

                                      • Path C:\Users\Admin\AppData\Local\Temp\F10C.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

                                      Microsoft .NET Framework 4.7.2 Setup_20221111_134153107.html

                                      • Path C:\Users\Admin\AppData\Local\Temp\Microsoft .NET Framework 4.7.2 Setup_20221111_134153107.html
                                      • Size 94KB
                                      • SHA256 1e2d279a106876dda26975523b530451fed7eec20095afbd03ea6cc2feec59e7
                                      • MD5 SHA1 SHA512 SSDEEP

                                      WIJBFSKT-20221111-1347.log

                                      • Path C:\Users\Admin\AppData\Local\Temp\WIJBFSKT-20221111-1347.log
                                      • Size 59KB
                                      • SHA256 dc8a5fec5a396174fd6e894b1e6703f20901ef48b71682d3904c4ee4db141d2e
                                      • 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

                                      chrome_installer.log

                                      • Path C:\Users\Admin\AppData\Local\Temp\chrome_installer.log
                                      • Size 3KB
                                      • SHA256 3e1be5d84bdf2dc4e2a97a158549c12a993f16cf7509e7aa1ae76c685523be0a
                                      • MD5 SHA1 SHA512

                                      dd_vcredistMSI1607.txt

                                      • Path C:\Users\Admin\AppData\Local\Temp\dd_vcredistMSI1607.txt
                                      • Size 415KB
                                      • SHA256 2d9f48daaffacf62cbeb71876333b480b8409de619c9aeb46f644abceb043649
                                      • MD5 SHA1 SHA512 SSDEEP

                                      dd_vcredistUI1607.txt

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

                                      jawshtml.html

                                      • Path C:\Users\Admin\AppData\Local\Temp\jawshtml.html
                                      • Size 13B
                                      • SHA256 7b4f72a40bd21934680f085afe8a30bf85acff1a8365af43102025c4ccf52b73
                                      • MD5 SHA1 SHA512

                                      jusched.log

                                      • Path C:\Users\Admin\AppData\Local\Temp\jusched.log
                                      • Size 266KB
                                      • SHA256 d35d5de8996335a6386483f86849b1bd93ad06120b0bf3423e7e7ef25672672e
                                      • MD5 SHA1 SHA512 SSDEEP

                                      msedge_installer.log

                                      • Path C:\Users\Admin\AppData\Local\Temp\msedge_installer.log
                                      • Size 3KB
                                      • SHA256 c1b76f0eb716d4dc7b5f00e0af7a8060902099a873d38bff01a6038b66519280
                                      • MD5 SHA1 SHA512

                                      wct66BA.tmp

                                      • Path C:\Users\Admin\AppData\Local\Temp\wct66BA.tmp
                                      • Size 63KB
                                      • SHA256 543796a1b343b4ebc0285d89cb8eb70667ac7b513da37495e38003704e9d88d7
                                      • MD5 SHA1 SHA512 SSDEEP

                                      wctB774.tmp

                                      • Path C:\Users\Admin\AppData\Local\Temp\wctB774.tmp
                                      • Size 63KB
                                      • SHA256 543796a1b343b4ebc0285d89cb8eb70667ac7b513da37495e38003704e9d88d7
                                      • MD5 SHA1 SHA512 SSDEEP

                                      wmsetup.log

                                      • Path C:\Users\Admin\AppData\Local\Temp\wmsetup.log
                                      • Size 697B
                                      • SHA256 2d172360c1246fed0a3ce8e0c1fffee953ddebe96484f0e8f3667e59bead2027
                                      • MD5 SHA1 SHA512

                                      memory/372-190-0x000000000AFD0000-0x000000000B0F8000-memory.dmp

                                      memory/372-195-0x0000000007867000-0x0000000007869000-memory.dmp

                                      memory/372-199-0x0000000007867000-0x0000000007869000-memory.dmp

                                      memory/372-200-0x000000000AFD0000-0x000000000B0F8000-memory.dmp

                                      memory/372-202-0x000000000AFD0000-0x000000000B0F8000-memory.dmp

                                      memory/1420-133-0x0000000002190000-0x0000000002199000-memory.dmp

                                      memory/1420-135-0x0000000000400000-0x0000000000459000-memory.dmp

                                      memory/1420-134-0x0000000000400000-0x0000000000459000-memory.dmp

                                      memory/1420-132-0x00000000006FD000-0x000000000070D000-memory.dmp

                                      memory/2304-178-0x00000000043F0000-0x0000000004530000-memory.dmp

                                      memory/2304-161-0x00000000036D0000-0x0000000004222000-memory.dmp

                                      memory/2304-162-0x00000000043F0000-0x0000000004530000-memory.dmp

                                      memory/2304-163-0x00000000043F0000-0x0000000004530000-memory.dmp

                                      memory/2304-160-0x00000000036D0000-0x0000000004222000-memory.dmp

                                      memory/2304-159-0x0000000001200000-0x0000000001C32000-memory.dmp

                                      memory/2304-179-0x00000000043F0000-0x0000000004530000-memory.dmp

                                      memory/2304-196-0x00000000036D0000-0x0000000004222000-memory.dmp

                                      memory/4248-149-0x0000000005740000-0x0000000005880000-memory.dmp

                                      memory/4248-148-0x0000000004B00000-0x0000000005652000-memory.dmp

                                      memory/4248-156-0x0000000005740000-0x0000000005880000-memory.dmp

                                      memory/4248-155-0x0000000005740000-0x0000000005880000-memory.dmp

                                      memory/4248-154-0x0000000005740000-0x0000000005880000-memory.dmp

                                      memory/4248-153-0x0000000005740000-0x0000000005880000-memory.dmp

                                      memory/4248-151-0x0000000005740000-0x0000000005880000-memory.dmp

                                      memory/4248-152-0x0000000005740000-0x0000000005880000-memory.dmp

                                      memory/4248-150-0x0000000005740000-0x0000000005880000-memory.dmp

                                      memory/4248-143-0x0000000000400000-0x0000000000CD0000-memory.dmp

                                      memory/4248-147-0x0000000004B00000-0x0000000005652000-memory.dmp

                                      memory/4248-139-0x0000000000400000-0x0000000000CD0000-memory.dmp

                                      memory/4248-140-0x00000000029BE000-0x0000000003035000-memory.dmp

                                      memory/4248-141-0x0000000003040000-0x0000000003903000-memory.dmp

                                      memory/4248-158-0x0000000004B00000-0x0000000005652000-memory.dmp

                                      memory/4248-198-0x0000000000400000-0x0000000000CD0000-memory.dmp

                                      memory/4248-197-0x0000000004B00000-0x0000000005652000-memory.dmp

                                      memory/4248-142-0x0000000000400000-0x0000000000CD0000-memory.dmp

                                      memory/4248-191-0x0000000000400000-0x0000000000CD0000-memory.dmp

                                      memory/4568-187-0x0000000002970000-0x0000000002AA4000-memory.dmp

                                      memory/4568-192-0x000000000235A000-0x000000000249A000-memory.dmp

                                      memory/4568-194-0x0000000000400000-0x0000000000588000-memory.dmp

                                      memory/4568-193-0x00000000024A0000-0x00000000025F5000-memory.dmp

                                      memory/4568-189-0x0000000002970000-0x0000000002AA4000-memory.dmp

                                      memory/4568-188-0x0000000002970000-0x0000000002AA4000-memory.dmp

                                      memory/4568-186-0x0000000002970000-0x0000000002AA4000-memory.dmp

                                      memory/4568-185-0x0000000002970000-0x0000000002AA4000-memory.dmp

                                      memory/4568-184-0x0000000002970000-0x0000000002AA4000-memory.dmp

                                      memory/4568-180-0x0000000002970000-0x0000000002AA4000-memory.dmp