Analysis

  • max time kernel
    76s
  • max time network
    89s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    02/03/2024, 16:35

General

  • Target
    [email protected]
  • Size 775KB
  • Sample240302-t345xafd49
  • SHA256 1501affdcf557a9dcb73ae34d43365d5301532a48328564160fdc1f3acb01e2e
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Modifies security service 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 4 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 2 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 8 IoCs
  • Suspicious use of SetThreadContext 49 IoCs
  • Modifies Internet Explorer settings 1 TTPs 62 IoCs
  • Modifies data under HKEY_USERS 30 IoCs
  • Modifies registry class 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 17 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of SetWindowsHookEx 14 IoCs
  • Suspicious use of UnmapMainImage 3 IoCs
  • Suspicious use of WriteProcessMemory 51 IoCs

Processes

  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k NetworkService
    1⤵
      PID:328
    • C:\Users\Admin\AppData\Local\Temp\[email protected]
      "C:\Users\Admin\AppData\Local\Temp\[email protected]"
      1⤵
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2612
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Deletes itself
        PID:2068
      • \??\globalroot\systemroot\system32\usеrinit.exe
        /install
        2⤵
        • Sets service image path in registry
        • Executes dropped EXE
        • Drops file in System32 directory
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2484
        • C:\Windows\system32\svchost.exe
          "C:\Windows\system32\svchost.exe"
          3⤵
          • Modifies security service
          • Windows security bypass
          • Modifies system executable filetype association
          • Enumerates connected drives
          • Suspicious use of NtCreateThreadExHideFromDebugger
          • Suspicious use of SetThreadContext
          • Modifies data under HKEY_USERS
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          • Suspicious use of WriteProcessMemory
          PID:2680
          • C:\Program Files\Internet Explorer\iexplore.exe
            "C:\Program Files\Internet Explorer\iexplore.exe" https://secure.2010billing.com/purchase/get.php?i=antvir&advert=3&extern=4&lang=EN
            4⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:1688
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1688 CREDAT:275457 /prefetch:2
              5⤵
              • Modifies Internet Explorer settings
              • Suspicious use of SetWindowsHookEx
              PID:912
          • C:\Program Files\Internet Explorer\iexplore.exe
            "C:\Program Files\Internet Explorer\iexplore.exe" https://secure.2010billing.com/purchase/get.php?i=antvir&advert=3&extern=4&lang=EN
            4⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:1180
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1180 CREDAT:275457 /prefetch:2
              5⤵
              • Modifies Internet Explorer settings
              • Suspicious use of SetWindowsHookEx
              PID:552
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1180 CREDAT:275464 /prefetch:2
              5⤵
              • Modifies Internet Explorer settings
              • Suspicious use of SetWindowsHookEx
              PID:1896
          • C:\Program Files\Internet Explorer\iexplore.exe
            "C:\Program Files\Internet Explorer\iexplore.exe" https://secure.2010billing.com/purchase/get.php?i=antvir&advert=3&extern=4&lang=EN
            4⤵
              PID:1928
            • C:\Program Files\Internet Explorer\iexplore.exe
              "C:\Program Files\Internet Explorer\iexplore.exe" https://secure.2010billing.com/purchase/get.php?i=antvir&advert=3&extern=4&lang=EN
              4⤵
                PID:1656
                • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1656 CREDAT:275457 /prefetch:2
                  5⤵
                    PID:1960
          • C:\Windows\system32\wbem\WMIADAP.EXE
            wmiadap.exe /F /T /R
            1⤵
              PID:1452
            • C:\Windows\system32\wbem\wmiprvse.exe
              C:\Windows\system32\wbem\wmiprvse.exe -Embedding
              1⤵
                PID:2184
              • C:\Windows\system32\DllHost.exe
                C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                1⤵
                  PID:528
                • C:\Windows\system32\DllHost.exe
                  C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
                  1⤵
                    PID:1940
                  • C:\Windows\system32\DllHost.exe
                    C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
                    1⤵
                      PID:2896

                    Network

                          MITRE ATT&CK Enterprise v15

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          94308059B57B3142E455B38A6EB92015

                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
                          • Size 67KB
                          • SHA256 b42dc237e44cbc9a43400e7d3f9cbd406dbdefd62bfe87328f8663897d69df78
                          • MD5 SHA1 SHA512 SSDEEP

                          94308059B57B3142E455B38A6EB92015

                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
                          • Size 344B
                          • SHA256 a41d68f1beee07844693bfe948b6305c071926797485c3818a4c90b7d67bb9b5
                          • MD5 SHA1 SHA512

                          94308059B57B3142E455B38A6EB92015

                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
                          • Size 344B
                          • SHA256 f986af75bfbf3f992ef0003969beb15aa6ca965e3441aa49076a306b7d45b0ef
                          • MD5 SHA1 SHA512

                          94308059B57B3142E455B38A6EB92015

                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
                          • Size 344B
                          • SHA256 968480269438b691099e36c23596293b6d6bfa0cde0cc866612544f4a2974146
                          • MD5 SHA1 SHA512

                          94308059B57B3142E455B38A6EB92015

                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
                          • Size 344B
                          • SHA256 5b5bacfced416c5927b1f5daa817b2b577610832b83df23c7191a7b6d22a1c8b
                          • MD5 SHA1 SHA512

                          94308059B57B3142E455B38A6EB92015

                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
                          • Size 344B
                          • SHA256 e508e11f97836b1c1125c8f130fe09dd407dc4773860f883a852c70783471d50
                          • MD5 SHA1 SHA512

                          94308059B57B3142E455B38A6EB92015

                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
                          • Size 344B
                          • SHA256 a0df2d01909381dba22c6a2774267aed6de21f244992702b52ddb9029c4ea0f1
                          • MD5 SHA1 SHA512

                          94308059B57B3142E455B38A6EB92015

                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
                          • Size 344B
                          • SHA256 cd4b0ed1f0c8d2fea70bfa177c11cba304022178612964fd51bc755a215a083b
                          • MD5 SHA1 SHA512

                          94308059B57B3142E455B38A6EB92015

                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
                          • Size 344B
                          • SHA256 aa677512c7eba52eacf127ee6099101027d1d6045dfad7eb3e707cc719f61693
                          • MD5 SHA1 SHA512

                          94308059B57B3142E455B38A6EB92015

                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
                          • Size 344B
                          • SHA256 9d18d1a16270a66022cf4b79c277b569ac7f9ec4cc289d0aaf977f69030c8d14
                          • MD5 SHA1 SHA512

                          94308059B57B3142E455B38A6EB92015

                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
                          • Size 344B
                          • SHA256 9857c2d654eaf673ac92abd85b5cdd07ed019f506f13cd2530184fb05f17bc5c
                          • MD5 SHA1 SHA512

                          94308059B57B3142E455B38A6EB92015

                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
                          • Size 344B
                          • SHA256 4a41e86e6cb191941ddc59a71f84e1fc43394eaf7b7ae01fad291b6ed8faf028
                          • MD5 SHA1 SHA512

                          94308059B57B3142E455B38A6EB92015

                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
                          • Size 344B
                          • SHA256 131868f188cf0c9072348e22ceab919e470a8853dfa2918d02a9a58f0bb7505e
                          • MD5 SHA1 SHA512

                          94308059B57B3142E455B38A6EB92015

                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
                          • Size 344B
                          • SHA256 39a4e5e572a005067ca631f9a96bc59e5ae9d3b60ef5793be557426013329e6f
                          • MD5 SHA1 SHA512

                          94308059B57B3142E455B38A6EB92015

                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
                          • Size 344B
                          • SHA256 897bc4fe5e6bccfda5e86507edfd88f1501be61810ccfcab96a7d4943b06d526
                          • MD5 SHA1 SHA512

                          94308059B57B3142E455B38A6EB92015

                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
                          • Size 344B
                          • SHA256 cd7d10d365c89b0902c21b7c6fa290832e32033f6eb633250fa26084a49c2fe0
                          • MD5 SHA1 SHA512

                          94308059B57B3142E455B38A6EB92015

                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
                          • Size 344B
                          • SHA256 4ffa0278b6d40ed1d88c8070df804fdf91e0790e3f678fe818db84252cd4f9be
                          • MD5 SHA1 SHA512

                          94308059B57B3142E455B38A6EB92015

                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
                          • Size 344B
                          • SHA256 f885469cef80fbc3ec9658881f8ab82860b43f1ac898a420acd623e8c3719be3
                          • MD5 SHA1 SHA512

                          94308059B57B3142E455B38A6EB92015

                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
                          • Size 344B
                          • SHA256 d21dee8bc3ae5f967fe77eacb283cea1fa1743056e3a21d1802e8e677e9505cf
                          • MD5 SHA1 SHA512

                          94308059B57B3142E455B38A6EB92015

                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
                          • Size 344B
                          • SHA256 ac0d415e494c5297a5103263f31bbc0d867d8d07384f01f972ddf4e617b44a55
                          • MD5 SHA1 SHA512

                          94308059B57B3142E455B38A6EB92015

                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
                          • Size 344B
                          • SHA256 32784e3dd8bb3cdbf723d9151ae19b511c83b75d443720cb79b82db92600e8bd
                          • MD5 SHA1 SHA512

                          RecoveryStore.{12D37E61-D8B3-11EE-B671-4AE872E97954}.dat

                          • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{12D37E61-D8B3-11EE-B671-4AE872E97954}.dat
                          • Size 5KB
                          • SHA256 436ef25d4247f02fce299ef9b60b7b1a908b795c5385c66565449870aedeb88c
                          • MD5 SHA1 SHA512 SSDEEP

                          RecoveryStore.{1CEA3241-D8B3-11EE-B671-4AE872E97954}.dat

                          • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{1CEA3241-D8B3-11EE-B671-4AE872E97954}.dat
                          • Size 5KB
                          • SHA256 56ac709270958c98de1793b7db0fffea535ed3799d0fafcba00c358b73408a64
                          • MD5 SHA1 SHA512 SSDEEP

                          RecoveryStore.{BA76E2A0-D0CB-11EE-AB17-C695CBC44580}.dat

                          • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Last Active\RecoveryStore.{BA76E2A0-D0CB-11EE-AB17-C695CBC44580}.dat
                          • Size 5KB
                          • SHA256 bfa419ade4b7b9f1c5df73d8baefd06b9adca183df79fa3cca1134ad998e5112
                          • MD5 SHA1 SHA512 SSDEEP

                          {12D37E64-D8B3-11EE-B671-4AE872E97954}.dat

                          • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Last Active\{12D37E64-D8B3-11EE-B671-4AE872E97954}.dat
                          • Size 4KB
                          • SHA256 919aeb875e9d7a47a5b6c1439f24b9cca9cb4434337c353c9f14aae5eda90d9c
                          • MD5 SHA1 SHA512 SSDEEP

                          Cab7497.tmp

                          • Path C:\Users\Admin\AppData\Local\Temp\Cab7497.tmp
                          • Size 65KB
                          • SHA256 c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d
                          • MD5 SHA1 SHA512 SSDEEP

                          Tar75D6.tmp

                          • Path C:\Users\Admin\AppData\Local\Temp\Tar75D6.tmp
                          • Size 175KB
                          • SHA256 a6752b7851b591550e4625b832a393aabcc428de18d83e8593cd540f7d7cae22
                          • MD5 SHA1 SHA512 SSDEEP

                          {E9C1E0AC-C9B1-4c85-94DE-9C1518918D02}.tlb

                          • Path C:\Users\Admin\AppData\Local\Temp\{E9C1E0AC-C9B1-4c85-94DE-9C1518918D02}.tlb
                          • Size 2KB
                          • SHA256 50d712b007a3339855619a4ad283661c07e13ec0a74465ea3d121439005cd1e5
                          • MD5 SHA1 SHA512

                          ~DFAA18BF052BDAA972.TMP

                          • Path C:\Users\Admin\AppData\Local\Temp\~DFAA18BF052BDAA972.TMP
                          • Size 16KB
                          • SHA256 6909c25c91407cee861748a84d582473fb8ff34140044c80880799ab642809a1
                          • MD5 SHA1 SHA512 SSDEEP

                          exefile.exe

                          • Path C:\Windows\System32\exefile.exe
                          • Size 115KB
                          • SHA256 09cd3c864182b703a1384a15e60424c0ee8c82c3fd19f197c391a0e3ec5bd16e
                          • MD5 SHA1 SHA512 SSDEEP

                          Microsoft-Windows-Kernel-EventTracing%4Admin.evtx

                          • Path C:\Windows\System32\winevt\Logs\Microsoft-Windows-Kernel-EventTracing%4Admin.evtx
                          • Size 68KB
                          • SHA256 2c5af935a6aa5a84ccf281b70fc33696e17f514433bbfcb5f99001a654a35730
                          • MD5 SHA1 SHA512 SSDEEP

                          usеrinit.exe

                          • Path \Windows\System32\usеrinit.exe
                          • Size 139KB
                          • SHA256 29b5b65a1cdf119ac7c6c9df76c6843b25a81bd00aa5a5e995ec675e34bf1acb
                          • MD5 SHA1 SHA512 SSDEEP

                          msiavjyv.dll

                          • Path \systemroot\system32\msiavjyv.dll
                          • Size 718KB
                          • SHA256 be8dbcb59c3181ec518a6934931efc725a128310956fd076f0f0bd537b96a9eb
                          • MD5 SHA1 SHA512 SSDEEP

                          memory/328-58-0x0000000001360000-0x0000000001366000-memory.dmp

                          memory/328-54-0x0000000001360000-0x0000000001366000-memory.dmp

                          memory/328-66-0x0000000001360000-0x0000000001366000-memory.dmp

                          memory/328-52-0x0000000001340000-0x0000000001343000-memory.dmp

                          memory/2612-9-0x0000000000400000-0x00000000004C4400-memory.dmp

                          memory/2612-1-0x0000000000400000-0x00000000004C4400-memory.dmp

                          memory/2612-2-0x0000000000580000-0x0000000000780000-memory.dmp

                          memory/2680-43-0x000007FFFFF80000-0x000007FFFFF90000-memory.dmp

                          memory/2680-25-0x0000000000190000-0x00000000001AA000-memory.dmp

                          memory/2680-20-0x0000000000190000-0x00000000001AA000-memory.dmp

                          memory/2680-14-0x0000000000060000-0x0000000000077000-memory.dmp

                          memory/2680-15-0x0000000000190000-0x00000000001AA000-memory.dmp

                          memory/2680-53-0x0000000000190000-0x00000000001AA000-memory.dmp

                          memory/2680-50-0x0000000000190000-0x00000000001AA000-memory.dmp

                          memory/2680-51-0x0000000000190000-0x00000000001AA000-memory.dmp

                          memory/2680-718-0x0000000000190000-0x00000000001AA000-memory.dmp