Analysis

  • max time kernel
    93s
  • max time network
    118s
  • 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 15:08

General

  • Target

    bcfd2b3be3c8da90f3bc95c0609b8f2c79faf9d81b97d969ef780794b2cab201.dll

  • Size

    564KB

  • MD5

    baac05579deaa1fe7d3851eb76ddfb6d

  • SHA1

    7dfc4e240284ad9cd792982471bb4f5610578117

  • SHA256

    bcfd2b3be3c8da90f3bc95c0609b8f2c79faf9d81b97d969ef780794b2cab201

  • SHA512

    436fa3fe4b9c6793531f5cb4f9c65a8fe2ce38c9c6f52bb119182b3f498f5c61f20d975d6c4a261de534fbff3f05e970d739da09b7ea3277c3413ed7ea084675

  • SSDEEP

    12288:tehnaNPpSVZmNxRCwnwm3W3OHIIf5m9RhWFVj:teh0PpS6NxNnwYeOHXAhWTj

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 15 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\bcfd2b3be3c8da90f3bc95c0609b8f2c79faf9d81b97d969ef780794b2cab201.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4928
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\bcfd2b3be3c8da90f3bc95c0609b8f2c79faf9d81b97d969ef780794b2cab201.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3184
      • 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:2752
        • 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:1844
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:524
            • 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:2304
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2304 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:4920
            • 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:1528
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1528 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:3960
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3184 -s 608
          3⤵
          • Program crash
          PID:3892
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 3184 -ip 3184
      1⤵
        PID:1852

      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

        c4e84cb3e78c25c9435dc974ff7414b3

        SHA1

        7f8f86d984aff8f1d3c8e172df2591200a2567ad

        SHA256

        de2c46b1fed2579b4632a1f4aefa957209c25a709684f453ce20e003762d49f9

        SHA512

        81c2e067ed3437b18916443614d510e2ce54184349935ebca936358fb5f283653c9985f1c796eac79fbd38f0569b83adbfa6d32a6790e5fc87f617b0d1bc8474

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

        Filesize

        404B

        MD5

        516770f3d10e9398203fcc470a0aeda9

        SHA1

        caae68950fe929aa61cef4b73e3804da7b69633c

        SHA256

        8ec19916218c15a1ee5d0a430ba67e3685908403144b386ef778da5556410f78

        SHA512

        16e0e87b1c3074a9a59279de7674ad1bf15e6cc84e55d6277eddfcf850fc814ec050b5a4ee64167e01db29124569d8e27b0a4389cceee19e2fabdf5025040f6d

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{82A29FBA-D740-11EF-9361-CAF61997B0B0}.dat

        Filesize

        3KB

        MD5

        22997bf831f5f1e449167aaed6c0f9e2

        SHA1

        5083ae47b4bc2b0acb810d585488797bd27f8855

        SHA256

        1b331bfa91166d3a8f4076fa3d7299c5c656ff7540dedb1e3b641f0f935f1e86

        SHA512

        fd5750f100139e6c036bcae6450a80f14717695bbdb800df2bcec291f3439103f168a47cbfb725191d7024008ee5bf2e0b2c611ef1fed3bebccb6b570848cf75

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{82A50244-D740-11EF-9361-CAF61997B0B0}.dat

        Filesize

        5KB

        MD5

        51da59a85b34de7d0bc8c521c071e09f

        SHA1

        f393da92bd13b400b6323b7f3d888a2263260f42

        SHA256

        6b4cdb42cbc1915f9e82d9cd57f90f93d5fc6de80f0ed2cf0460499ecf02ab17

        SHA512

        ee60e1492e926f88bf121515097b6ce10426d43e50ea1b1000ab98674261afdb8034378aaf9efb07319594cd5ca08900806491e498ed90bcf7c7dc741c7eb1c6

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\0BHOTC3C\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/1844-44-0x0000000000070000-0x0000000000071000-memory.dmp

        Filesize

        4KB

      • memory/1844-45-0x00000000777B2000-0x00000000777B3000-memory.dmp

        Filesize

        4KB

      • memory/1844-41-0x00000000777B2000-0x00000000777B3000-memory.dmp

        Filesize

        4KB

      • memory/1844-40-0x0000000000060000-0x0000000000061000-memory.dmp

        Filesize

        4KB

      • memory/1844-35-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/1844-46-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1844-34-0x0000000000910000-0x0000000000911000-memory.dmp

        Filesize

        4KB

      • memory/1844-39-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2752-28-0x0000000000416000-0x0000000000420000-memory.dmp

        Filesize

        40KB

      • memory/2752-29-0x0000000000401000-0x0000000000416000-memory.dmp

        Filesize

        84KB

      • memory/2752-20-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2752-16-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2752-15-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2752-11-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2752-10-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2752-9-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2752-4-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2752-6-0x0000000003240000-0x00000000042CE000-memory.dmp

        Filesize

        16.6MB

      • memory/2752-27-0x0000000000401000-0x0000000000405000-memory.dmp

        Filesize

        16KB

      • memory/2752-25-0x0000000003240000-0x00000000042CE000-memory.dmp

        Filesize

        16.6MB

      • memory/2752-21-0x0000000003240000-0x00000000042CE000-memory.dmp

        Filesize

        16.6MB

      • memory/2752-14-0x0000000003240000-0x00000000042CE000-memory.dmp

        Filesize

        16.6MB

      • memory/2752-8-0x0000000003240000-0x00000000042CE000-memory.dmp

        Filesize

        16.6MB

      • memory/2752-12-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3184-1-0x0000000010000000-0x000000001008B000-memory.dmp

        Filesize

        556KB

      • memory/3184-43-0x0000000010000000-0x000000001008B000-memory.dmp

        Filesize

        556KB