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Analysis

  • max time kernel
    81s
  • max time network
    202s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    19-07-2021 22:53

General

  • Target

    8 (1).exe

  • Size

    3.0MB

  • MD5

    bb072cad921aa5ce8b97706ce01bc570

  • SHA1

    18bf034906c1341b7817e7361ad27a4425d820bd

  • SHA256

    817a50d00909383bbef41e6f4e61b527d55f0873bcf745b29dbba75f52fe2e97

  • SHA512

    d40e5f77d882ed29bd9de5a6848072e2f81cd02176955e2b1a4aedcdf4eb687d77bebe33cef0c7d702bc828181755f86e2564523d476adbb785f396a5ce1d474

Malware Config

Extracted

Family

vidar

Version

39.6

Botnet

933

C2

https://sslamlssa1.tumblr.com/

Attributes
  • profile_id

    933

Extracted

Family

smokeloader

Version

2020

C2

http://conceitosseg.com/upload/

http://integrasidata.com/upload/

http://ozentekstil.com/upload/

http://finbelportal.com/upload/

http://telanganadigital.com/upload/

rc4.i32
rc4.i32

Signatures

  • Modifies Windows Defender Real-time Protection settings 3 TTPs
  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Vidar Stealer 2 IoCs
  • ASPack v2.12-2.42 14 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Downloads MZ/PE file
  • Executes dropped EXE 26 IoCs
  • Loads dropped DLL 64 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory 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 1 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 2 IoCs

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

  • Modifies data under HKEY_USERS 5 IoCs
  • Modifies registry class 13 IoCs
  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\services.exe
    C:\Windows\system32\services.exe
    1⤵
      PID:464
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k netsvcs
        2⤵
        • Suspicious use of NtCreateUserProcessOtherParentProcess
        • Drops file in System32 directory
        • Suspicious use of SetThreadContext
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:872
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k SystemNetworkService
        2⤵
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        • Modifies registry class
        PID:1140
    • C:\Users\Admin\AppData\Local\Temp\8 (1).exe
      "C:\Users\Admin\AppData\Local\Temp\8 (1).exe"
      1⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1724
      • C:\Users\Admin\AppData\Local\Temp\setup_installer.exe
        "C:\Users\Admin\AppData\Local\Temp\setup_installer.exe"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1904
        • C:\Users\Admin\AppData\Local\Temp\7zS07781E35\setup_install.exe
          "C:\Users\Admin\AppData\Local\Temp\7zS07781E35\setup_install.exe"
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:1580
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c sonia_1.exe
            4⤵
            • Loads dropped DLL
            • Suspicious use of WriteProcessMemory
            PID:1400
            • C:\Users\Admin\AppData\Local\Temp\7zS07781E35\sonia_1.exe
              sonia_1.exe
              5⤵
              • Executes dropped EXE
              • Loads dropped DLL
              PID:1536
              • C:\Users\Admin\AppData\Local\Temp\7zS07781E35\sonia_1.exe
                "C:\Users\Admin\AppData\Local\Temp\7zS07781E35\sonia_1.exe" -a
                6⤵
                • Executes dropped EXE
                • Loads dropped DLL
                PID:1524
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c sonia_7.exe
            4⤵
              PID:1576
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c sonia_6.exe
              4⤵
              • Loads dropped DLL
              PID:1660
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c sonia_5.exe
              4⤵
              • Loads dropped DLL
              PID:1676
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c sonia_4.exe
              4⤵
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:1592
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c sonia_3.exe
              4⤵
              • Loads dropped DLL
              PID:1260
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c sonia_2.exe
              4⤵
              • Loads dropped DLL
              PID:920
      • C:\Users\Admin\AppData\Local\Temp\7zS07781E35\sonia_2.exe
        sonia_2.exe
        1⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Checks SCSI registry key(s)
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        PID:1232
      • C:\Users\Admin\AppData\Local\Temp\7zS07781E35\sonia_6.exe
        sonia_6.exe
        1⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        PID:1308
        • C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe
          C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe /scookiestxt C:\Users\Admin\AppData\Local\Temp\fj4ghga23_fsa.txt
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1904
      • C:\Users\Admin\AppData\Local\Temp\7zS07781E35\sonia_5.exe
        sonia_5.exe
        1⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Modifies system certificate store
        PID:924
        • C:\Users\Admin\Documents\kENzqr5Tb2j5RGDv6bYsLEsi.exe
          "C:\Users\Admin\Documents\kENzqr5Tb2j5RGDv6bYsLEsi.exe"
          2⤵
          • Executes dropped EXE
          PID:2212
        • C:\Users\Admin\Documents\gX0SSI9uEwEDBTVSzLVyFxe2.exe
          "C:\Users\Admin\Documents\gX0SSI9uEwEDBTVSzLVyFxe2.exe"
          2⤵
          • Executes dropped EXE
          PID:2236
        • C:\Users\Admin\Documents\b_k2YpztBvL30agy1FI_FRSy.exe
          "C:\Users\Admin\Documents\b_k2YpztBvL30agy1FI_FRSy.exe"
          2⤵
            PID:2228
          • C:\Users\Admin\Documents\a2z6Na6IY6vDuTAWbfwAl9Ry.exe
            "C:\Users\Admin\Documents\a2z6Na6IY6vDuTAWbfwAl9Ry.exe"
            2⤵
              PID:2260
            • C:\Users\Admin\Documents\b5EXQHcJnzZgega9QZUOqJ6W.exe
              "C:\Users\Admin\Documents\b5EXQHcJnzZgega9QZUOqJ6W.exe"
              2⤵
              • Executes dropped EXE
              PID:2268
            • C:\Users\Admin\Documents\U1F1DkwEaMPVyywHw67eoyMp.exe
              "C:\Users\Admin\Documents\U1F1DkwEaMPVyywHw67eoyMp.exe"
              2⤵
              • Executes dropped EXE
              PID:2324
            • C:\Users\Admin\Documents\ZWUj3TpFLKO9jlS3GqjGMGWa.exe
              "C:\Users\Admin\Documents\ZWUj3TpFLKO9jlS3GqjGMGWa.exe"
              2⤵
              • Executes dropped EXE
              PID:2316
            • C:\Users\Admin\Documents\W50IBCdjcBGH43o90ERooR6t.exe
              "C:\Users\Admin\Documents\W50IBCdjcBGH43o90ERooR6t.exe"
              2⤵
              • Executes dropped EXE
              PID:2308
            • C:\Users\Admin\Documents\8jHbVBGVWqpCXQkUoQFCsy1j.exe
              "C:\Users\Admin\Documents\8jHbVBGVWqpCXQkUoQFCsy1j.exe"
              2⤵
              • Executes dropped EXE
              PID:2284
            • C:\Users\Admin\Documents\P0cNz6RfVFwUWtOZJvcuF3y0.exe
              "C:\Users\Admin\Documents\P0cNz6RfVFwUWtOZJvcuF3y0.exe"
              2⤵
              • Executes dropped EXE
              PID:2276
            • C:\Users\Admin\Documents\uQLHGRy3xMjnxDWlImx8gDBc.exe
              "C:\Users\Admin\Documents\uQLHGRy3xMjnxDWlImx8gDBc.exe"
              2⤵
              • Executes dropped EXE
              PID:2388
            • C:\Users\Admin\Documents\t3M8oZKTaMf4dba7d7Q_N_pL.exe
              "C:\Users\Admin\Documents\t3M8oZKTaMf4dba7d7Q_N_pL.exe"
              2⤵
              • Executes dropped EXE
              PID:2376
            • C:\Users\Admin\Documents\oi3UT41tFIpkobsB21XnydqZ.exe
              "C:\Users\Admin\Documents\oi3UT41tFIpkobsB21XnydqZ.exe"
              2⤵
                PID:2760
              • C:\Users\Admin\Documents\P4ZOkff5b3OQw5iznydAdWG1.exe
                "C:\Users\Admin\Documents\P4ZOkff5b3OQw5iznydAdWG1.exe"
                2⤵
                  PID:2744
                • C:\Users\Admin\Documents\WDbiBAsj3iiIWUOBA8GBR8fP.exe
                  "C:\Users\Admin\Documents\WDbiBAsj3iiIWUOBA8GBR8fP.exe"
                  2⤵
                    PID:2724
                  • C:\Users\Admin\Documents\nmMkMbvl1objotP3LYnuF4g7.exe
                    "C:\Users\Admin\Documents\nmMkMbvl1objotP3LYnuF4g7.exe"
                    2⤵
                      PID:2712
                      • C:\Users\Admin\Documents\nmMkMbvl1objotP3LYnuF4g7.exe
                        "C:\Users\Admin\Documents\nmMkMbvl1objotP3LYnuF4g7.exe" -a
                        3⤵
                          PID:3044
                      • C:\Users\Admin\Documents\5LO1GcDnDzi5TmiBgF1Wt0xI.exe
                        "C:\Users\Admin\Documents\5LO1GcDnDzi5TmiBgF1Wt0xI.exe"
                        2⤵
                          PID:2700
                      • C:\Users\Admin\AppData\Local\Temp\7zS07781E35\sonia_3.exe
                        sonia_3.exe
                        1⤵
                        • Executes dropped EXE
                        • Loads dropped DLL
                        PID:1136
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 1136 -s 948
                          2⤵
                          • Program crash
                          PID:2980
                      • C:\Users\Admin\AppData\Local\Temp\7zS07781E35\sonia_4.exe
                        sonia_4.exe
                        1⤵
                        • Executes dropped EXE
                        • Modifies system certificate store
                        • Suspicious use of AdjustPrivilegeToken
                        PID:976
                        • C:\Users\Admin\AppData\Local\Temp\LzmwAqmV.exe
                          "C:\Users\Admin\AppData\Local\Temp\LzmwAqmV.exe"
                          2⤵
                          • Executes dropped EXE
                          • Loads dropped DLL
                          PID:2004
                          • C:\Users\Admin\AppData\Local\Temp\jhuuee.exe
                            "C:\Users\Admin\AppData\Local\Temp\jhuuee.exe"
                            3⤵
                            • Executes dropped EXE
                            • Loads dropped DLL
                            PID:2104
                            • C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe
                              C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe /scookiestxt C:\Users\Admin\AppData\Local\Temp\fj4ghga23_fsa.txt
                              4⤵
                              • Executes dropped EXE
                              PID:2144
                          • C:\Users\Admin\AppData\Local\Temp\OLKbrowser.exe
                            "C:\Users\Admin\AppData\Local\Temp\OLKbrowser.exe"
                            3⤵
                            • Executes dropped EXE
                            PID:2172
                          • C:\Users\Admin\AppData\Local\Temp\setup 326.exe
                            "C:\Users\Admin\AppData\Local\Temp\setup 326.exe"
                            3⤵
                            • Executes dropped EXE
                            PID:2344
                          • C:\Users\Admin\AppData\Local\Temp\setup.exe
                            "C:\Users\Admin\AppData\Local\Temp\setup.exe"
                            3⤵
                            • Executes dropped EXE
                            PID:2480
                          • C:\Users\Admin\AppData\Local\Temp\zhangd.exe
                            "C:\Users\Admin\AppData\Local\Temp\zhangd.exe"
                            3⤵
                              PID:2668
                        • C:\Windows\system32\rUNdlL32.eXe
                          rUNdlL32.eXe "C:\Users\Admin\AppData\Local\Temp\axhub.dll",main
                          1⤵
                          • Process spawned unexpected child process
                          PID:1808
                          • C:\Windows\SysWOW64\rundll32.exe
                            rUNdlL32.eXe "C:\Users\Admin\AppData\Local\Temp\axhub.dll",main
                            2⤵
                            • Loads dropped DLL
                            • Modifies registry class
                            • Suspicious behavior: EnumeratesProcesses
                            • Suspicious use of AdjustPrivilegeToken
                            PID:1016

                        Network

                        MITRE ATT&CK Enterprise v6

                        Replay Monitor

                        Loading Replay Monitor...

                        Downloads

                        • memory/872-180-0x0000000000A20000-0x0000000000A6C000-memory.dmp

                          Filesize

                          304KB

                        • memory/872-181-0x0000000001EE0000-0x0000000001F51000-memory.dmp

                          Filesize

                          452KB

                        • memory/976-139-0x00000000012E0000-0x00000000012E1000-memory.dmp

                          Filesize

                          4KB

                        • memory/976-165-0x000000001AF80000-0x000000001AF82000-memory.dmp

                          Filesize

                          8KB

                        • memory/1016-178-0x0000000000970000-0x0000000000A71000-memory.dmp

                          Filesize

                          1.0MB

                        • memory/1016-179-0x0000000000300000-0x000000000035D000-memory.dmp

                          Filesize

                          372KB

                        • memory/1136-169-0x0000000000CB0000-0x0000000000D4D000-memory.dmp

                          Filesize

                          628KB

                        • memory/1136-177-0x0000000000400000-0x00000000008F2000-memory.dmp

                          Filesize

                          4.9MB

                        • memory/1140-182-0x00000000004A0000-0x0000000000511000-memory.dmp

                          Filesize

                          452KB

                        • memory/1140-227-0x0000000000370000-0x000000000038B000-memory.dmp

                          Filesize

                          108KB

                        • memory/1192-187-0x0000000002C40000-0x0000000002C55000-memory.dmp

                          Filesize

                          84KB

                        • memory/1232-168-0x0000000000400000-0x0000000000896000-memory.dmp

                          Filesize

                          4.6MB

                        • memory/1232-167-0x00000000001D0000-0x00000000001D9000-memory.dmp

                          Filesize

                          36KB

                        • memory/1580-105-0x0000000064940000-0x0000000064959000-memory.dmp

                          Filesize

                          100KB

                        • memory/1580-115-0x000000006B280000-0x000000006B2A6000-memory.dmp

                          Filesize

                          152KB

                        • memory/1580-89-0x000000006B440000-0x000000006B4CF000-memory.dmp

                          Filesize

                          572KB

                        • memory/1580-91-0x000000006B280000-0x000000006B2A6000-memory.dmp

                          Filesize

                          152KB

                        • memory/1580-92-0x0000000064940000-0x0000000064959000-memory.dmp

                          Filesize

                          100KB

                        • memory/1580-95-0x0000000064940000-0x0000000064959000-memory.dmp

                          Filesize

                          100KB

                        • memory/1580-90-0x000000006FE40000-0x000000006FFC6000-memory.dmp

                          Filesize

                          1.5MB

                        • memory/1580-94-0x0000000000400000-0x000000000051D000-memory.dmp

                          Filesize

                          1.1MB

                        • memory/1580-93-0x0000000000400000-0x000000000051D000-memory.dmp

                          Filesize

                          1.1MB

                        • memory/1580-103-0x0000000064940000-0x0000000064959000-memory.dmp

                          Filesize

                          100KB

                        • memory/1580-112-0x000000006FE40000-0x000000006FFC6000-memory.dmp

                          Filesize

                          1.5MB

                        • memory/1580-107-0x000000006B440000-0x000000006B4CF000-memory.dmp

                          Filesize

                          572KB

                        • memory/1724-60-0x00000000769B1000-0x00000000769B3000-memory.dmp

                          Filesize

                          8KB

                        • memory/2004-188-0x0000000001280000-0x0000000001281000-memory.dmp

                          Filesize

                          4KB

                        • memory/2276-217-0x0000000000140000-0x0000000000141000-memory.dmp

                          Filesize

                          4KB

                        • memory/2284-234-0x000007FEFC0C1000-0x000007FEFC0C3000-memory.dmp

                          Filesize

                          8KB

                        • memory/2316-228-0x0000000001290000-0x0000000001291000-memory.dmp

                          Filesize

                          4KB

                        • memory/2744-232-0x0000000000FA0000-0x0000000000FA1000-memory.dmp

                          Filesize

                          4KB