Analysis

  • max time kernel
    150s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 13:46

General

  • Target

    87438b9c03188b2a968bb059d36c888849d2ee1811384c42975ee068eb7df4ce.exe

  • Size

    154KB

  • MD5

    9c7796ff737b2a894d41b2d17888b762

  • SHA1

    88fd00e03931ec0c6caceb15541ce77610472b8c

  • SHA256

    87438b9c03188b2a968bb059d36c888849d2ee1811384c42975ee068eb7df4ce

  • SHA512

    638526c820a2fb3555ccc479ea70f3b1cc6f9e1f92f03ccf5e8f9be8bed9e1d1148252634f550902af3e40b8f90c3ffc4ad16bbe90a9a853377c6f26494a79f6

  • SSDEEP

    3072:8YSxpPRGkYzL3PwIDJS7H29JWI3Wa3BaTAnaaPTZWout5S:8fRGkYHPwIwDg0rmB0zWFWoSw

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • UPX packed file 4 IoCs

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

  • Deletes itself 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 24 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1260
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1364
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1420
          • C:\Users\Admin\AppData\Local\Temp\87438b9c03188b2a968bb059d36c888849d2ee1811384c42975ee068eb7df4ce.exe
            "C:\Users\Admin\AppData\Local\Temp\87438b9c03188b2a968bb059d36c888849d2ee1811384c42975ee068eb7df4ce.exe"
            2⤵
            • Loads dropped DLL
            • Suspicious use of SetThreadContext
            • Modifies Internet Explorer settings
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:1572
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmpd70f7e9d.bat"
              3⤵
              • Suspicious use of WriteProcessMemory
              PID:1968
              • C:\Windows\SysWOW64\netsh.exe
                netsh advfirewall firewall add rule name="explore" dir=in action=allow program="C:\Users\Admin\AppData\Roaming\Ylmoni\moyfur.exe"
                4⤵
                • Modifies Windows Firewall
                PID:944
            • C:\Users\Admin\AppData\Roaming\Ylmoni\moyfur.exe
              "C:\Users\Admin\AppData\Roaming\Ylmoni\moyfur.exe"
              3⤵
              • Executes dropped EXE
              • Adds Run key to start application
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:1988
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmp9b31c1e4.bat"
              3⤵
              • Deletes itself
              • Suspicious use of AdjustPrivilegeToken
              PID:2028
        • C:\Program Files\Windows Mail\WinMail.exe
          "C:\Program Files\Windows Mail\WinMail.exe" -Embedding
          1⤵
          • NTFS ADS
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:1048
        • C:\Windows\system32\conhost.exe
          \??\C:\Windows\system32\conhost.exe "-16523771971296969567-52205361638635029-15944151421048875863-1787615734-1843480749"
          1⤵
            PID:556
          • C:\Windows\system32\DllHost.exe
            C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
            1⤵
              PID:1464
            • C:\Windows\system32\DllHost.exe
              C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
              1⤵
                PID:1716
              • C:\Windows\system32\DllHost.exe
                C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
                1⤵
                  PID:1652

                Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • C:\Users\Admin\AppData\Local\Temp\tmp9b31c1e4.bat

                  Filesize

                  307B

                  MD5

                  1773c9e0d678faeb4f4248efbcef228d

                  SHA1

                  14c558b5c09f49c745bb2759627534335f6481a8

                  SHA256

                  2ece7fe151d71fa33f1f43068dd363d133d1df0dd52d11e8dc434a17bce52245

                  SHA512

                  84aeb21dfd488ff33022238397f35d6d07333c5ad4ba066f6452da9a2d27a532dce38db2325d622d330b40425728d89e9e7e69bf3d70444ea86296b204bb9447

                • C:\Users\Admin\AppData\Local\Temp\tmpd70f7e9d.bat

                  Filesize

                  202B

                  MD5

                  1ce19ec848e472c0c628048b1b07fff0

                  SHA1

                  6b3f7b6d45d52ed533442617a8b1c263af963b72

                  SHA256

                  68f727db801a69ef3adf7e8fbe0f44ac22038e0916f038d1793e01ab3bc26844

                  SHA512

                  e18173ce5419e89789d74c60b04021eb7e15a6fc07b47a796c9d2ed8e2bac5752aefce53d390b801944544a5855c4c8b887d4b070174835228b50509b932b4c1

                • C:\Users\Admin\AppData\Roaming\Hiobyfx\vocofoa.ecg

                  Filesize

                  398B

                  MD5

                  866de627077725eae918ec95407388ee

                  SHA1

                  4e0ba1d46c94568344292def950e720c7fc70bbf

                  SHA256

                  246890ec5518573c08fbdac812580eee0337cbcdf2864bb2371b316554a3a87c

                  SHA512

                  ca6cf89c7575c3d85e037113f733bafafb1454132323b052702319715512ed9352ba369d09ed0b72b759dd165608822e74aca92952a30ab079168d3d81b4d85c

                • C:\Users\Admin\AppData\Roaming\Ylmoni\moyfur.exe

                  Filesize

                  154KB

                  MD5

                  350a19461b0709136b5b885323b86691

                  SHA1

                  582a4e9e888e1827458bad51424bfcbbf67a7523

                  SHA256

                  1f3471eb32210fca35c58d8a36b5b3da86b12a23c47c7e869e19286f48524f1b

                  SHA512

                  8993d60c391266d522a8a4d07b48c56e3f20b7bf6dc00944c9dc498d40273f0196669102c3395cf1405548889b06abcd71bb44c36b5439b6cc80fa956fe1e8b3

                • C:\Users\Admin\AppData\Roaming\Ylmoni\moyfur.exe

                  Filesize

                  154KB

                  MD5

                  350a19461b0709136b5b885323b86691

                  SHA1

                  582a4e9e888e1827458bad51424bfcbbf67a7523

                  SHA256

                  1f3471eb32210fca35c58d8a36b5b3da86b12a23c47c7e869e19286f48524f1b

                  SHA512

                  8993d60c391266d522a8a4d07b48c56e3f20b7bf6dc00944c9dc498d40273f0196669102c3395cf1405548889b06abcd71bb44c36b5439b6cc80fa956fe1e8b3

                • \Users\Admin\AppData\Roaming\Ylmoni\moyfur.exe

                  Filesize

                  154KB

                  MD5

                  350a19461b0709136b5b885323b86691

                  SHA1

                  582a4e9e888e1827458bad51424bfcbbf67a7523

                  SHA256

                  1f3471eb32210fca35c58d8a36b5b3da86b12a23c47c7e869e19286f48524f1b

                  SHA512

                  8993d60c391266d522a8a4d07b48c56e3f20b7bf6dc00944c9dc498d40273f0196669102c3395cf1405548889b06abcd71bb44c36b5439b6cc80fa956fe1e8b3

                • \Users\Admin\AppData\Roaming\Ylmoni\moyfur.exe

                  Filesize

                  154KB

                  MD5

                  350a19461b0709136b5b885323b86691

                  SHA1

                  582a4e9e888e1827458bad51424bfcbbf67a7523

                  SHA256

                  1f3471eb32210fca35c58d8a36b5b3da86b12a23c47c7e869e19286f48524f1b

                  SHA512

                  8993d60c391266d522a8a4d07b48c56e3f20b7bf6dc00944c9dc498d40273f0196669102c3395cf1405548889b06abcd71bb44c36b5439b6cc80fa956fe1e8b3

                • memory/556-132-0x0000000000160000-0x0000000000187000-memory.dmp

                  Filesize

                  156KB

                • memory/556-133-0x0000000000160000-0x0000000000187000-memory.dmp

                  Filesize

                  156KB

                • memory/556-134-0x0000000000160000-0x0000000000187000-memory.dmp

                  Filesize

                  156KB

                • memory/556-135-0x0000000000160000-0x0000000000187000-memory.dmp

                  Filesize

                  156KB

                • memory/944-65-0x0000000000000000-mapping.dmp

                • memory/1048-98-0x000007FEFBD81000-0x000007FEFBD83000-memory.dmp

                  Filesize

                  8KB

                • memory/1048-117-0x0000000003D10000-0x0000000003D37000-memory.dmp

                  Filesize

                  156KB

                • memory/1048-116-0x0000000003D10000-0x0000000003D37000-memory.dmp

                  Filesize

                  156KB

                • memory/1048-115-0x0000000003D10000-0x0000000003D37000-memory.dmp

                  Filesize

                  156KB

                • memory/1048-114-0x0000000003D10000-0x0000000003D37000-memory.dmp

                  Filesize

                  156KB

                • memory/1048-106-0x0000000002410000-0x0000000002420000-memory.dmp

                  Filesize

                  64KB

                • memory/1048-100-0x00000000020E0000-0x00000000020F0000-memory.dmp

                  Filesize

                  64KB

                • memory/1048-99-0x000007FEF67A1000-0x000007FEF67A3000-memory.dmp

                  Filesize

                  8KB

                • memory/1260-72-0x0000000001D30000-0x0000000001D57000-memory.dmp

                  Filesize

                  156KB

                • memory/1260-69-0x0000000001D30000-0x0000000001D57000-memory.dmp

                  Filesize

                  156KB

                • memory/1260-73-0x0000000001D30000-0x0000000001D57000-memory.dmp

                  Filesize

                  156KB

                • memory/1260-71-0x0000000001D30000-0x0000000001D57000-memory.dmp

                  Filesize

                  156KB

                • memory/1260-74-0x0000000001D30000-0x0000000001D57000-memory.dmp

                  Filesize

                  156KB

                • memory/1364-79-0x0000000001AE0000-0x0000000001B07000-memory.dmp

                  Filesize

                  156KB

                • memory/1364-77-0x0000000001AE0000-0x0000000001B07000-memory.dmp

                  Filesize

                  156KB

                • memory/1364-78-0x0000000001AE0000-0x0000000001B07000-memory.dmp

                  Filesize

                  156KB

                • memory/1364-80-0x0000000001AE0000-0x0000000001B07000-memory.dmp

                  Filesize

                  156KB

                • memory/1420-84-0x0000000002270000-0x0000000002297000-memory.dmp

                  Filesize

                  156KB

                • memory/1420-83-0x0000000002270000-0x0000000002297000-memory.dmp

                  Filesize

                  156KB

                • memory/1420-85-0x0000000002270000-0x0000000002297000-memory.dmp

                  Filesize

                  156KB

                • memory/1420-86-0x0000000002270000-0x0000000002297000-memory.dmp

                  Filesize

                  156KB

                • memory/1572-92-0x00000000003D0000-0x00000000003F7000-memory.dmp

                  Filesize

                  156KB

                • memory/1572-56-0x0000000000400000-0x0000000000454000-memory.dmp

                  Filesize

                  336KB

                • memory/1572-58-0x0000000000400000-0x0000000000454000-memory.dmp

                  Filesize

                  336KB

                • memory/1572-94-0x0000000000560000-0x00000000005B4000-memory.dmp

                  Filesize

                  336KB

                • memory/1572-93-0x0000000000560000-0x00000000005B4000-memory.dmp

                  Filesize

                  336KB

                • memory/1572-90-0x00000000003D0000-0x00000000003F7000-memory.dmp

                  Filesize

                  156KB

                • memory/1572-91-0x00000000003D0000-0x00000000003F7000-memory.dmp

                  Filesize

                  156KB

                • memory/1572-54-0x0000000076121000-0x0000000076123000-memory.dmp

                  Filesize

                  8KB

                • memory/1572-89-0x00000000003D0000-0x00000000003F7000-memory.dmp

                  Filesize

                  156KB

                • memory/1572-128-0x0000000000400000-0x0000000000454000-memory.dmp

                  Filesize

                  336KB

                • memory/1572-55-0x0000000000400000-0x0000000000454000-memory.dmp

                  Filesize

                  336KB

                • memory/1572-96-0x00000000003D0000-0x00000000003F7000-memory.dmp

                  Filesize

                  156KB

                • memory/1572-57-0x0000000000220000-0x0000000000234000-memory.dmp

                  Filesize

                  80KB

                • memory/1968-59-0x0000000000000000-mapping.dmp

                • memory/1988-142-0x0000000000400000-0x0000000000454000-memory.dmp

                  Filesize

                  336KB

                • memory/1988-62-0x0000000000000000-mapping.dmp

                • memory/1988-95-0x0000000000400000-0x0000000000454000-memory.dmp

                  Filesize

                  336KB

                • memory/2028-123-0x0000000000050000-0x0000000000077000-memory.dmp

                  Filesize

                  156KB

                • memory/2028-129-0x0000000000050000-0x0000000000077000-memory.dmp

                  Filesize

                  156KB

                • memory/2028-126-0x000000000005DD63-mapping.dmp

                • memory/2028-125-0x0000000000050000-0x0000000000077000-memory.dmp

                  Filesize

                  156KB

                • memory/2028-124-0x0000000000050000-0x0000000000077000-memory.dmp

                  Filesize

                  156KB

                • memory/2028-121-0x0000000000050000-0x0000000000077000-memory.dmp

                  Filesize

                  156KB