Analysis

  • max time kernel
    93s
  • max time network
    121s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-01-2025 16:09

General

  • Target

    3764c7397066d51b063f1de675c839475bf014747f77a1eef05fc23b363c7d90N.dll

  • Size

    564KB

  • MD5

    bf517c1ac6f37ed04db555d6f5795470

  • SHA1

    ef20150fd170f7d26a592b4837e1d012a06d3351

  • SHA256

    3764c7397066d51b063f1de675c839475bf014747f77a1eef05fc23b363c7d90

  • SHA512

    4fc2f985df465af1869cf04f369e2c06f925603c81da19385552aff6fde4940ee3e1a5817226b556e7368257c261a76d8bbdcaa542662a65c0456c4535736232

  • SSDEEP

    12288:tehnaNPpSVZmNxRCwnwm3W3OHIIf5m9RhWFVC:teh0PpS6NxNnwYeOHXAhWTC

Malware Config

Extracted

Family

sality

C2

http://89.119.67.154/testo5/

http://kukutrustnet777.info/home.gif

http://kukutrustnet888.info/home.gif

http://kukutrustnet987.info/home.gif

http://www.klkjwre9fqwieluoi.info/

http://kukutrustnet777888.info/

Signatures

  • Modifies firewall policy service 3 TTPs 3 IoCs
  • Ramnit

    Ramnit is a versatile family that holds viruses, worms, and Trojans.

  • Ramnit family
  • Sality

    Sality is backdoor written in C++, first discovered in 2003.

  • Sality family
  • UAC bypass 3 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 6 IoCs
  • Executes dropped EXE 2 IoCs
  • Windows security modification 2 TTPs 7 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • UPX packed file 13 IoCs

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

  • Drops file in Program Files directory 3 IoCs
  • Drops file in Windows directory 1 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies Internet Explorer settings 1 TTPs 45 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\3764c7397066d51b063f1de675c839475bf014747f77a1eef05fc23b363c7d90N.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2148
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\3764c7397066d51b063f1de675c839475bf014747f77a1eef05fc23b363c7d90N.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4848
      • C:\Windows\SysWOW64\rundll32mgr.exe
        C:\Windows\SysWOW64\rundll32mgr.exe
        3⤵
        • Modifies firewall policy service
        • UAC bypass
        • Windows security bypass
        • Executes dropped EXE
        • Windows security modification
        • Checks whether UAC is enabled
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of UnmapMainImage
        • Suspicious use of WriteProcessMemory
        • System policy modification
        PID:4056
        • C:\Program Files (x86)\Microsoft\WaterMark.exe
          "C:\Program Files (x86)\Microsoft\WaterMark.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of UnmapMainImage
          • Suspicious use of WriteProcessMemory
          PID:2612
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:4228
            • C:\Program Files\Internet Explorer\iexplore.exe
              "C:\Program Files\Internet Explorer\iexplore.exe"
              5⤵
              • Modifies Internet Explorer settings
              • Suspicious use of FindShellTrayWindow
              • Suspicious use of SetWindowsHookEx
              • Suspicious use of WriteProcessMemory
              PID:4248
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4248 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:2776
            • C:\Program Files\Internet Explorer\iexplore.exe
              "C:\Program Files\Internet Explorer\iexplore.exe"
              5⤵
              • Modifies Internet Explorer settings
              • Suspicious use of FindShellTrayWindow
              • Suspicious use of SetWindowsHookEx
              • Suspicious use of WriteProcessMemory
              PID:3148
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3148 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:3176
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4848 -s 608
          3⤵
          • Program crash
          PID:4876
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 4848 -ip 4848
      1⤵
        PID:3240

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

        Filesize

        471B

        MD5

        0ada2095c461df5a751955aa41dd491e

        SHA1

        8366c54b31e1ddc8016aa22aab8c83f73c690810

        SHA256

        80cd542688ed3a45669b53243c3f4922d6eb21a34d8dfeebc6c101484d3bac09

        SHA512

        135991affe343d4358bb15a693effa7a6813d6715e555729d2aa04a98555e13fded55d3100a41a92a5beb57c68fbdacb199a3e66407944e37880b28d42d79e7c

      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

        Filesize

        404B

        MD5

        d0afc0193525e64c56286d9e276020bc

        SHA1

        1993c4d30f2529dac07b2afaeaec676219773f9f

        SHA256

        c5b8fd896a3116d6f435214a5ca2052f5fc247f0a2cb67b65e84d9fd840d2b04

        SHA512

        3ff0fe515df0e827de8948496459a05098ed1d91c4ea4146c577ca9dd106d47ef7bff4875041f3a82b9baccfcb7215b5715191d25ced00e9c4117e6dd3244394

      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

        Filesize

        404B

        MD5

        2a1491cd8514d588156cfa29bf49ce0a

        SHA1

        1a91b5025bc3359a75b0461d899e77f336047e56

        SHA256

        79fe5385e946ca74d52741e7404a99f7ebbefc0cd84b5f409875adbaf5769d52

        SHA512

        a9ec6945b502651798abf2dfc5fede0f20487463ac5b92046e3813a46158c51f802b8914a91e5f6e76be8555aba6e6d8f4600abaa486929e8791242e413db4a6

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{F9C1D8BD-D748-11EF-AF2A-4A034D48373C}.dat

        Filesize

        5KB

        MD5

        ef932d622848e0a74f668ca56badc3bc

        SHA1

        0f61a448270e8c244a44476d3b595cf68f03b8d7

        SHA256

        a2183d9b1c59633184acbafd8edc5c6460b44929a5202ddec2e888d8ff75878a

        SHA512

        4c5ada86002f28edcbe9bbbb0fe1357fb0f1f6ac8c7906d79ab456edeccc787bea61d729826778379e62d14d0d6beaadbd7596a740ea5beb2dffa3d05b585ef9

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{F9C69CB8-D748-11EF-AF2A-4A034D48373C}.dat

        Filesize

        5KB

        MD5

        42a37a726c1831234a428fe9032daccf

        SHA1

        6d8d8d0ae323c90f8281e9d13b0ebd71b620bec9

        SHA256

        0c06643d2838b6109c85298a742ca798d2ce655388ba36752e4c599159a03093

        SHA512

        fd72c4ace1454e1efc4230f5cc4a3c0dd0ea28bc0573dcab7c19b0bc50d4acf938554e9ac0ab0217f0a1de4c44a7439374e8a50d16d1829de57e2eed4c41c35a

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\DQ67RYHS\suggestions[1].en-US

        Filesize

        17KB

        MD5

        5a34cb996293fde2cb7a4ac89587393a

        SHA1

        3c96c993500690d1a77873cd62bc639b3a10653f

        SHA256

        c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

        SHA512

        e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

      • C:\Windows\SysWOW64\rundll32mgr.exe

        Filesize

        164KB

        MD5

        a3b1f1c4cd75bea10095e054f990bf1d

        SHA1

        15bf037b2166d2533e12bbec9f1d5f9a3ad8c81b

        SHA256

        a4c51942f696650a7ce0530a88c3742380ac82bc1ddc75c24d1417f0958caaee

        SHA512

        7457591c9676baa6043e4c3ae6ede364f19964c4e4e6a91a06e148221402791cabf9d5ab2bfcb629120ab136fee0a2994c0830f7cbfb112c5c6b07109b6a1a94

      • memory/2612-45-0x0000000000070000-0x0000000000071000-memory.dmp

        Filesize

        4KB

      • memory/2612-47-0x0000000077692000-0x0000000077693000-memory.dmp

        Filesize

        4KB

      • memory/2612-42-0x0000000077692000-0x0000000077693000-memory.dmp

        Filesize

        4KB

      • memory/2612-41-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2612-37-0x00000000008A0000-0x00000000008A1000-memory.dmp

        Filesize

        4KB

      • memory/2612-40-0x0000000000060000-0x0000000000061000-memory.dmp

        Filesize

        4KB

      • memory/2612-50-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2612-30-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2612-31-0x0000000000401000-0x0000000000402000-memory.dmp

        Filesize

        4KB

      • memory/2612-46-0x0000000000401000-0x0000000000402000-memory.dmp

        Filesize

        4KB

      • memory/4056-27-0x0000000000416000-0x0000000000420000-memory.dmp

        Filesize

        40KB

      • memory/4056-14-0x0000000003310000-0x000000000439E000-memory.dmp

        Filesize

        16.6MB

      • memory/4056-9-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4056-8-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4056-7-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4056-12-0x0000000003310000-0x000000000439E000-memory.dmp

        Filesize

        16.6MB

      • memory/4056-5-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/4056-17-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4056-20-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4056-10-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4056-26-0x0000000000401000-0x0000000000405000-memory.dmp

        Filesize

        16KB

      • memory/4056-21-0x0000000003310000-0x000000000439E000-memory.dmp

        Filesize

        16.6MB

      • memory/4056-29-0x0000000003310000-0x000000000439E000-memory.dmp

        Filesize

        16.6MB

      • memory/4056-28-0x0000000000401000-0x0000000000416000-memory.dmp

        Filesize

        84KB

      • memory/4056-16-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4848-1-0x0000000010000000-0x000000001008B000-memory.dmp

        Filesize

        556KB

      • memory/4848-44-0x0000000010000000-0x000000001008B000-memory.dmp

        Filesize

        556KB