Analysis

  • max time kernel
    150s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/11/2022, 19:26

General

  • Target
    0ea81dcef3cc904eed9a70eac27437df.exe
  • Size 303KB
  • Sample221104-x5hapsacd8
  • SHA256 8bb0c3620d088547fecab128c97aa368caeebb99a6e6055ef6b67970cf59110f
  • 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 1 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 4 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 46 IoCs

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

  • 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 22 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0ea81dcef3cc904eed9a70eac27437df.exe
    "C:\Users\Admin\AppData\Local\Temp\0ea81dcef3cc904eed9a70eac27437df.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:4692
  • C:\Users\Admin\AppData\Local\Temp\714.exe
    C:\Users\Admin\AppData\Local\Temp\714.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:1348
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1348 -s 816
      2⤵
      • Program crash
      PID:2180
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1348 -s 880
      2⤵
      • Program crash
      PID:5112
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1348 -s 840
      2⤵
      • Program crash
      PID:4616
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1348 -s 844
      2⤵
      • Program crash
      PID:3412
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\syswow64\rundll32.exe" "C:\Windows\syswow64\shell32.dll",#61
      2⤵
      • Checks processor information in registry
      • Modifies registry class
      • Suspicious use of FindShellTrayWindow
      PID:2296
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1348 -ip 1348
    1⤵
      PID:1508
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1348 -ip 1348
      1⤵
        PID:5104
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1348 -ip 1348
        1⤵
          PID:5052
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 1348 -ip 1348
          1⤵
            PID:1492

          Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                0d502779-c529-4ae0-a0cb-e70926e21349.tmp

                • Path C:\Users\Admin\AppData\Local\Temp\0d502779-c529-4ae0-a0cb-e70926e21349.tmp
                • Size 22KB
                • SHA256 d6f11c606729d553e9c9b3d0db9e5d51567ea969bedd98008cce7b9415a17490
                • MD5 SHA1 SHA512 SSDEEP

                714.exe

                • Path C:\Users\Admin\AppData\Local\Temp\714.exe
                • Size 4.9MB
                • SHA256 a89e9d77c3da116fa19821acf9e6ac4f78f9e8ec0a57f67f407aa29cc334eabf
                • MD5 SHA1 SHA512 SSDEEP

                714.exe

                • Path C:\Users\Admin\AppData\Local\Temp\714.exe
                • Size 4.9MB
                • SHA256 a89e9d77c3da116fa19821acf9e6ac4f78f9e8ec0a57f67f407aa29cc334eabf
                • MD5 SHA1 SHA512 SSDEEP

                GBQHURCC-20220812-1921.log

                • Path C:\Users\Admin\AppData\Local\Temp\GBQHURCC-20220812-1921.log
                • Size 60KB
                • SHA256 8c1d6e5d024f1fa3f60323e3d7b2d76c4090f73aab9aca557b74edf58cb68a19
                • MD5 SHA1 SHA512 SSDEEP

                JavaDeployReg.log

                • Path C:\Users\Admin\AppData\Local\Temp\JavaDeployReg.log
                • Size 25KB
                • SHA256 fae1c05269e8dd5949302a1ec38625e70e8167a0cfe0734bb0aaf8533ce6bf1e
                • MD5 SHA1 SHA512 SSDEEP

                Microsoft .NET Framework 4.7.2 Setup_20220812_191538705.html

                • Path C:\Users\Admin\AppData\Local\Temp\Microsoft .NET Framework 4.7.2 Setup_20220812_191538705.html
                • Size 94KB
                • SHA256 0be98a2f88b59cc8a14e48b604678303a0855a629751c2a31940a7b4073fa5a3
                • MD5 SHA1 SHA512 SSDEEP

                Rpiidpytrto.tmp

                • Path C:\Users\Admin\AppData\Local\Temp\Rpiidpytrto.tmp
                • Size 3.5MB
                • SHA256 8c67a70fe070595fda6ec977af7da0085d40df299f04cdd5669156752fee3f31
                • MD5 SHA1 SHA512 SSDEEP

                adc52f94-c82e-434e-9f30-9b348375f053.tmp

                • Path C:\Users\Admin\AppData\Local\Temp\adc52f94-c82e-434e-9f30-9b348375f053.tmp
                • Size 23KB
                • SHA256 3884df97009ac7e97143743660ed8e010d5f77edcf611bf85276e876fc70754b
                • MD5 SHA1 SHA512 SSDEEP

                dd_vcredistUI4F4B.txt

                • Path C:\Users\Admin\AppData\Local\Temp\dd_vcredistUI4F4B.txt
                • Size 11KB
                • SHA256 8cfe7d0b442bc501af66e76f6690929059f589e89d1eb8420c47b2ac40d4dd1c
                • MD5 SHA1 SHA512 SSDEEP

                msedge_installer.log

                • Path C:\Users\Admin\AppData\Local\Temp\msedge_installer.log
                • Size 3KB
                • SHA256 7bc05c175a0201ec193933f45c3a16ae8f4b9d959ef9f8253ebd6d0d7579d569
                • MD5 SHA1 SHA512

                memory/1348-142-0x0000000006060000-0x0000000006BC9000-memory.dmp

                memory/1348-151-0x0000000006D10000-0x0000000006E50000-memory.dmp

                memory/1348-144-0x0000000006060000-0x0000000006BC9000-memory.dmp

                memory/1348-145-0x0000000006060000-0x0000000006BC9000-memory.dmp

                memory/1348-146-0x0000000006D10000-0x0000000006E50000-memory.dmp

                memory/1348-147-0x0000000006D10000-0x0000000006E50000-memory.dmp

                memory/1348-148-0x0000000006D10000-0x0000000006E50000-memory.dmp

                memory/1348-149-0x0000000006D10000-0x0000000006E50000-memory.dmp

                memory/1348-150-0x0000000006D10000-0x0000000006E50000-memory.dmp

                memory/1348-140-0x0000000005300000-0x0000000005955000-memory.dmp

                memory/1348-152-0x0000000006D10000-0x0000000006E50000-memory.dmp

                memory/1348-153-0x0000000006D10000-0x0000000006E50000-memory.dmp

                memory/1348-171-0x0000000006060000-0x0000000006BC9000-memory.dmp

                memory/1348-170-0x0000000000400000-0x00000000030CE000-memory.dmp

                memory/1348-143-0x0000000000400000-0x00000000030CE000-memory.dmp

                memory/1348-139-0x0000000004E55000-0x00000000052FF000-memory.dmp

                memory/1348-141-0x0000000000400000-0x00000000030CE000-memory.dmp

                memory/2296-157-0x0000000003950000-0x0000000003A90000-memory.dmp

                memory/2296-156-0x0000000003950000-0x0000000003A90000-memory.dmp

                memory/2296-166-0x0000000000800000-0x000000000124A000-memory.dmp

                memory/2296-167-0x0000000003950000-0x0000000003A90000-memory.dmp

                memory/2296-168-0x0000000003950000-0x0000000003A90000-memory.dmp

                memory/2296-169-0x0000000002C20000-0x0000000003789000-memory.dmp

                memory/2296-155-0x0000000002C20000-0x0000000003789000-memory.dmp

                memory/2296-172-0x0000000002C20000-0x0000000003789000-memory.dmp

                memory/4692-132-0x0000000002F68000-0x0000000002F7E000-memory.dmp

                memory/4692-135-0x0000000000400000-0x0000000002C39000-memory.dmp

                memory/4692-134-0x0000000000400000-0x0000000002C39000-memory.dmp

                memory/4692-133-0x0000000002E90000-0x0000000002E99000-memory.dmp