Analysis

  • max time kernel
    154s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/10/2022, 17:32

General

  • Target
    60d892e4fda31831cdc587860523dbfa.exe
  • Size 302KB
  • Sample221012-v39wtsdegm
  • SHA256 cbe2946dea885c2b7cbfa40dd2575c7620004a9a261082e0bd691922cdca2050
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Detects Smokeloader packer 3 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Downloads MZ/PE file
  • Executes dropped EXE 8 IoCs
  • Checks computer location settings 2 TTPs 2 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 cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

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

  • 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.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 19 IoCs
  • Suspicious use of AdjustPrivilegeToken 21 IoCs
  • Suspicious use of WriteProcessMemory 57 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\60d892e4fda31831cdc587860523dbfa.exe
    "C:\Users\Admin\AppData\Local\Temp\60d892e4fda31831cdc587860523dbfa.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:952
  • C:\Users\Admin\AppData\Local\Temp\61B7.exe
    C:\Users\Admin\AppData\Local\Temp\61B7.exe
    1⤵
    • Executes dropped EXE
    PID:2312
  • C:\Users\Admin\AppData\Local\Temp\63BC.exe
    C:\Users\Admin\AppData\Local\Temp\63BC.exe
    1⤵
    • Executes dropped EXE
    PID:4560
  • C:\Users\Admin\AppData\Local\Temp\688F.exe
    C:\Users\Admin\AppData\Local\Temp\688F.exe
    1⤵
    • Executes dropped EXE
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3596
    • C:\Users\Admin\AppData\Local\Temp\0fd408e638\wfyoot.exe
      "C:\Users\Admin\AppData\Local\Temp\0fd408e638\wfyoot.exe"
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:3676
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN wfyoot.exe /TR "C:\Users\Admin\AppData\Local\Temp\0fd408e638\wfyoot.exe" /F
        3⤵
        • Creates scheduled task(s)
        PID:1084
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3596 -s 1136
      2⤵
      • Program crash
      PID:3540
  • C:\Users\Admin\AppData\Local\Temp\739D.exe
    C:\Users\Admin\AppData\Local\Temp\739D.exe
    1⤵
    • Executes dropped EXE
    PID:1352
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 3596 -ip 3596
    1⤵
      PID:560
    • C:\Users\Admin\AppData\Local\Temp\7DEE.exe
      C:\Users\Admin\AppData\Local\Temp\7DEE.exe
      1⤵
      • Executes dropped EXE
      PID:1976
    • C:\Users\Admin\AppData\Local\Temp\8310.exe
      C:\Users\Admin\AppData\Local\Temp\8310.exe
      1⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:4868
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4868 -s 1604
        2⤵
        • Program crash
        PID:4176
    • C:\Windows\SysWOW64\explorer.exe
      C:\Windows\SysWOW64\explorer.exe
      1⤵
        PID:4648
      • C:\Windows\explorer.exe
        C:\Windows\explorer.exe
        1⤵
          PID:4984
        • C:\Windows\SysWOW64\explorer.exe
          C:\Windows\SysWOW64\explorer.exe
          1⤵
            PID:4140
          • C:\Windows\explorer.exe
            C:\Windows\explorer.exe
            1⤵
              PID:3136
            • C:\Windows\SysWOW64\explorer.exe
              C:\Windows\SysWOW64\explorer.exe
              1⤵
                PID:4812
              • C:\Windows\SysWOW64\explorer.exe
                C:\Windows\SysWOW64\explorer.exe
                1⤵
                  PID:4040
                • C:\Windows\SysWOW64\explorer.exe
                  C:\Windows\SysWOW64\explorer.exe
                  1⤵
                    PID:864
                  • C:\Windows\explorer.exe
                    C:\Windows\explorer.exe
                    1⤵
                      PID:3508
                    • C:\Windows\SysWOW64\explorer.exe
                      C:\Windows\SysWOW64\explorer.exe
                      1⤵
                        PID:3916
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 4868 -ip 4868
                        1⤵
                          PID:1596
                        • C:\Users\Admin\AppData\Local\Temp\0fd408e638\wfyoot.exe
                          C:\Users\Admin\AppData\Local\Temp\0fd408e638\wfyoot.exe
                          1⤵
                          • Executes dropped EXE
                          PID:1088
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 1088 -s 432
                            2⤵
                            • Program crash
                            PID:2112
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1088 -ip 1088
                          1⤵
                            PID:2276

                          Network

                                MITRE ATT&CK Enterprise v6

                                Replay Monitor

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                                Downloads

                                wfyoot.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\0fd408e638\wfyoot.exe
                                • Size 342KB
                                • SHA256 ad1195a0d6ba108b68f30c3cece596edbee351a36407a9b4fbd0b1f6cc61726b
                                • MD5 SHA1 SHA512 SSDEEP

                                wfyoot.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\0fd408e638\wfyoot.exe
                                • Size 342KB
                                • SHA256 ad1195a0d6ba108b68f30c3cece596edbee351a36407a9b4fbd0b1f6cc61726b
                                • MD5 SHA1 SHA512 SSDEEP

                                wfyoot.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\0fd408e638\wfyoot.exe
                                • Size 342KB
                                • SHA256 ad1195a0d6ba108b68f30c3cece596edbee351a36407a9b4fbd0b1f6cc61726b
                                • MD5 SHA1 SHA512 SSDEEP

                                61B7.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\61B7.exe
                                • Size 766KB
                                • SHA256 adfcc3d526381c7c2fe99e2db561fa91de1591188aea020b08a90e6733209f05
                                • MD5 SHA1 SHA512 SSDEEP

                                61B7.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\61B7.exe
                                • Size 766KB
                                • SHA256 adfcc3d526381c7c2fe99e2db561fa91de1591188aea020b08a90e6733209f05
                                • MD5 SHA1 SHA512 SSDEEP

                                63BC.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\63BC.exe
                                • Size 703KB
                                • SHA256 208ab84f20b1cb00245df65d3a8873fa14f75a567053777c8413e3e10c335ca2
                                • MD5 SHA1 SHA512 SSDEEP

                                63BC.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\63BC.exe
                                • Size 703KB
                                • SHA256 208ab84f20b1cb00245df65d3a8873fa14f75a567053777c8413e3e10c335ca2
                                • MD5 SHA1 SHA512 SSDEEP

                                688F.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\688F.exe
                                • Size 342KB
                                • SHA256 ad1195a0d6ba108b68f30c3cece596edbee351a36407a9b4fbd0b1f6cc61726b
                                • MD5 SHA1 SHA512 SSDEEP

                                688F.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\688F.exe
                                • Size 342KB
                                • SHA256 ad1195a0d6ba108b68f30c3cece596edbee351a36407a9b4fbd0b1f6cc61726b
                                • MD5 SHA1 SHA512 SSDEEP

                                739D.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\739D.exe
                                • Size 897KB
                                • SHA256 11bf3f81d56649e1b8a404ac593cb8d699c3dc47def68703629dcebaf7752967
                                • MD5 SHA1 SHA512 SSDEEP

                                739D.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\739D.exe
                                • Size 897KB
                                • SHA256 11bf3f81d56649e1b8a404ac593cb8d699c3dc47def68703629dcebaf7752967
                                • MD5 SHA1 SHA512 SSDEEP

                                7DEE.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\7DEE.exe
                                • Size 720KB
                                • SHA256 0103856c001d654207c4496b55b06921f5ed3818450a624464c5062b7668abb5
                                • MD5 SHA1 SHA512 SSDEEP

                                7DEE.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\7DEE.exe
                                • Size 720KB
                                • SHA256 0103856c001d654207c4496b55b06921f5ed3818450a624464c5062b7668abb5
                                • MD5 SHA1 SHA512 SSDEEP

                                8310.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\8310.exe
                                • Size 447KB
                                • SHA256 4b7f5a3df8170c4ea12a0ff058abb3cab8978063f551f32174ec63fa0d39071d
                                • MD5 SHA1 SHA512 SSDEEP

                                8310.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\8310.exe
                                • Size 447KB
                                • SHA256 4b7f5a3df8170c4ea12a0ff058abb3cab8978063f551f32174ec63fa0d39071d
                                • MD5 SHA1 SHA512 SSDEEP

                                memory/864-216-0x0000000001090000-0x0000000001096000-memory.dmp

                                memory/864-195-0x0000000001080000-0x000000000108B000-memory.dmp

                                memory/864-194-0x0000000001090000-0x0000000001096000-memory.dmp

                                memory/952-135-0x0000000000400000-0x0000000000451000-memory.dmp

                                memory/952-134-0x0000000000400000-0x0000000000451000-memory.dmp

                                memory/952-132-0x00000000006BE000-0x00000000006CE000-memory.dmp

                                memory/952-133-0x00000000004D0000-0x00000000004D9000-memory.dmp

                                memory/1088-221-0x0000000000400000-0x000000000045A000-memory.dmp

                                memory/1088-220-0x0000000000623000-0x000000000063F000-memory.dmp

                                memory/3136-211-0x0000000000750000-0x0000000000756000-memory.dmp

                                memory/3136-182-0x0000000000740000-0x000000000074C000-memory.dmp

                                memory/3136-181-0x0000000000750000-0x0000000000756000-memory.dmp

                                memory/3508-198-0x0000000000A90000-0x0000000000A97000-memory.dmp

                                memory/3508-217-0x0000000000A90000-0x0000000000A97000-memory.dmp

                                memory/3508-199-0x0000000000A80000-0x0000000000A8D000-memory.dmp

                                memory/3596-154-0x000000000049E000-0x00000000004BB000-memory.dmp

                                memory/3596-155-0x0000000000400000-0x000000000045A000-memory.dmp

                                memory/3596-150-0x0000000000400000-0x000000000045A000-memory.dmp

                                memory/3596-149-0x0000000002080000-0x00000000020B7000-memory.dmp

                                memory/3596-148-0x000000000049E000-0x00000000004BB000-memory.dmp

                                memory/3676-167-0x000000000066E000-0x000000000068A000-memory.dmp

                                memory/3676-168-0x0000000000400000-0x000000000045A000-memory.dmp

                                memory/3916-203-0x0000000000880000-0x000000000088B000-memory.dmp

                                memory/3916-218-0x0000000000890000-0x0000000000898000-memory.dmp

                                memory/3916-201-0x0000000000890000-0x0000000000898000-memory.dmp

                                memory/4040-190-0x0000000000CD0000-0x0000000000CD9000-memory.dmp

                                memory/4040-215-0x0000000000CE0000-0x0000000000CE5000-memory.dmp

                                memory/4040-189-0x0000000000CE0000-0x0000000000CE5000-memory.dmp

                                memory/4140-172-0x0000000000890000-0x0000000000895000-memory.dmp

                                memory/4140-208-0x0000000000890000-0x0000000000895000-memory.dmp

                                memory/4140-173-0x0000000000880000-0x0000000000889000-memory.dmp

                                memory/4648-206-0x00000000009E0000-0x00000000009E7000-memory.dmp

                                memory/4648-163-0x00000000009E0000-0x00000000009E7000-memory.dmp

                                memory/4648-164-0x00000000009D0000-0x00000000009DB000-memory.dmp

                                memory/4812-214-0x0000000000D60000-0x0000000000D82000-memory.dmp

                                memory/4812-186-0x0000000000D60000-0x0000000000D82000-memory.dmp

                                memory/4812-187-0x0000000000D30000-0x0000000000D57000-memory.dmp

                                memory/4868-209-0x000000000064E000-0x0000000000685000-memory.dmp

                                memory/4868-183-0x0000000005880000-0x000000000598A000-memory.dmp

                                memory/4868-202-0x0000000007500000-0x0000000007A2C000-memory.dmp

                                memory/4868-174-0x000000000064E000-0x0000000000685000-memory.dmp

                                memory/4868-204-0x0000000007C10000-0x0000000007C86000-memory.dmp

                                memory/4868-205-0x0000000007CB0000-0x0000000007CCE000-memory.dmp

                                memory/4868-175-0x00000000005D0000-0x0000000000629000-memory.dmp

                                memory/4868-210-0x0000000006680000-0x00000000066D0000-memory.dmp

                                memory/4868-178-0x0000000004BC0000-0x0000000005164000-memory.dmp

                                memory/4868-191-0x0000000005CA0000-0x0000000005D32000-memory.dmp

                                memory/4868-192-0x0000000005D40000-0x0000000005DA6000-memory.dmp

                                memory/4868-185-0x0000000005990000-0x00000000059CC000-memory.dmp

                                memory/4868-212-0x000000000064E000-0x0000000000685000-memory.dmp

                                memory/4868-213-0x0000000000400000-0x0000000000475000-memory.dmp

                                memory/4868-196-0x0000000007330000-0x00000000074F2000-memory.dmp

                                memory/4868-176-0x0000000000400000-0x0000000000475000-memory.dmp

                                memory/4868-180-0x0000000005860000-0x0000000005872000-memory.dmp

                                memory/4868-179-0x00000000051C0000-0x00000000057D8000-memory.dmp

                                memory/4984-207-0x00000000007F0000-0x00000000007F9000-memory.dmp

                                memory/4984-169-0x00000000007F0000-0x00000000007F9000-memory.dmp

                                memory/4984-170-0x00000000007E0000-0x00000000007EF000-memory.dmp