Analysis

  • max time kernel
    94s
  • max time network
    119s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-12-2024 18:45

General

  • Target

    9858a04f24b6d7e8f3f7d1cba4539ca8212b90c0b2f2f3b94e8f99a9e1c4244eN.dll

  • Size

    1.8MB

  • MD5

    c1985e4179ef31d06a8ea3c05388b440

  • SHA1

    3d8639385b3cd73e108c5e4d333489793fb8bfda

  • SHA256

    9858a04f24b6d7e8f3f7d1cba4539ca8212b90c0b2f2f3b94e8f99a9e1c4244e

  • SHA512

    fe766e2f975aa30995c7495c3f64b7ce5869cdee3df4e4d8aba53c09477d9324a14ed9e3a8005b563a2ecfcdc296d8e8ddd2960e4afbfd854944bd0d1c845174

  • SSDEEP

    24576:o7IY7a9IRCRqRPkHQo411810cNScGKJydXTZDwmzRMo3DP7x5nbiQjBWI:oIY5RMHMf810Knor5zqo3zNJuQjBJ

Malware Config

Signatures

  • Ramnit

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

  • Ramnit family
  • Executes dropped EXE 2 IoCs
  • Drops file in System32 directory 1 IoCs
  • UPX packed file 11 IoCs

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

  • Drops file in Program Files directory 3 IoCs
  • Program crash 2 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 51 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

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\9858a04f24b6d7e8f3f7d1cba4539ca8212b90c0b2f2f3b94e8f99a9e1c4244eN.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3220
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\9858a04f24b6d7e8f3f7d1cba4539ca8212b90c0b2f2f3b94e8f99a9e1c4244eN.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:448
      • C:\Windows\SysWOW64\rundll32mgr.exe
        C:\Windows\SysWOW64\rundll32mgr.exe
        3⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of UnmapMainImage
        • Suspicious use of WriteProcessMemory
        PID:2332
        • 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:2948
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:708
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 708 -s 204
                6⤵
                • Program crash
                PID:972
            • 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:2416
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2416 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:3712
            • 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:2400
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2400 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:3824
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 448 -s 640
          3⤵
          • Program crash
          PID:1836
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 708 -ip 708
      1⤵
        PID:2972
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 448 -ip 448
        1⤵
          PID:4860

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          471B

          MD5

          ec237169ada59f1945749967a6d3d7f0

          SHA1

          e8fe32e8fa527409463d3fa0d63b6bdf709d7bd6

          SHA256

          b783f55456ca301f00aab79b6a0720bfb2450aefd094e6026231fab663152d70

          SHA512

          d5b5bff9f6afb36817c2c556e67c4ed7fc787a51bef623eb7150b596cc4cc88bee4b10b5eccae2c2ed0055653166f68bf75f2375ce4689666eb42330361de2d5

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

          Filesize

          404B

          MD5

          efbe3454b99df4837450b23e93e8bdff

          SHA1

          c51e8865aaea29fb2fd31122f86091cc25eb8071

          SHA256

          3148294f9dd89d8ecdbc728a3c63cc55fb3bee5b1786bc0ecf6a771baa08a7b6

          SHA512

          6c75dc7252b081c06726202bf4f014d46fbd6fc1f3a1db9d3fbfc6bda82289e3df474839cf115a12f407a5969c889305b9f7cf04494d3ad7c22ee78f41d7eaea

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

          Filesize

          404B

          MD5

          dc2758362797c97e29fffed88011aa49

          SHA1

          259a96fdcbfc5614e864f61190e33040bdae4c44

          SHA256

          5c5db698fa633a80a0e6903fe036332e8ef5883d29d97ed6be0e35d5167154df

          SHA512

          0990e621e90d58b5b289849f9a38d1abfee8452d29c05844df686313a4263162ac101f17c7c06a14aa937695703cf7a49f409688ed506d9266e79bbfe2d04b5f

        • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{FE998817-BBDD-11EF-9361-EE6C25FCE24B}.dat

          Filesize

          3KB

          MD5

          64bb43c0a6d77d344c9b36db6a74e36d

          SHA1

          eeda71eb730c99c2802c5528d14f540c8376c396

          SHA256

          ec6ff3013a835c8fcc20bb764196fa283a59aea3f3a0c31fecf50e9de13dfb18

          SHA512

          6f13ff40e400579e10ed93273f8b7ab929aebe194e9f7d09c0ffa3031d24a764895e7bbbb50f7f9f91c8264043600521b75773e586fbf70389850d88a465ccf9

        • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{FE9BE986-BBDD-11EF-9361-EE6C25FCE24B}.dat

          Filesize

          5KB

          MD5

          eee2651d8100a134dad113a38fbf88d3

          SHA1

          ca761aa2030d9ec9aa83474f6ee2de6b7487e1ce

          SHA256

          ec81db8e3055406525d2d2d6fe5a0599e7288d9a285f5e6c043508e81ffb3518

          SHA512

          e57dfd026bc860518ab5aafec2206633ad4307a72c329109236235bc9289721dd90917ff2a4ce46ff018f7ac818c78e45629d68156a1160c9944a9505981e48a

        • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver1AD6.tmp

          Filesize

          15KB

          MD5

          1a545d0052b581fbb2ab4c52133846bc

          SHA1

          62f3266a9b9925cd6d98658b92adec673cbe3dd3

          SHA256

          557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

          SHA512

          bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

        • 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

          60KB

          MD5

          94f2f6ffbba8e7644668b51b39983916

          SHA1

          63357bbdf90101969117983dbc0d4ed0e713c4d7

          SHA256

          ede7603855cb37082c241c720a6650988c684eb3bcb263e5dd7b457458940fed

          SHA512

          d04430ceac70c6fa71d07d9ee82ac2bb5e6c0641d5c9e7e5a3ed39d342e8b198f367676516a55f0653e0b88635a027b9ad220e223145b8be8df281bb6faf7156

        • memory/448-36-0x0000000010000000-0x0000000010359000-memory.dmp

          Filesize

          3.3MB

        • memory/448-3-0x0000000010000000-0x0000000010359000-memory.dmp

          Filesize

          3.3MB

        • memory/708-35-0x0000000001010000-0x0000000001011000-memory.dmp

          Filesize

          4KB

        • memory/708-34-0x0000000001030000-0x0000000001031000-memory.dmp

          Filesize

          4KB

        • memory/2332-15-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/2332-10-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/2332-9-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/2332-8-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/2332-7-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/2332-6-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/2332-12-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/2332-14-0x0000000000870000-0x0000000000871000-memory.dmp

          Filesize

          4KB

        • memory/2332-28-0x0000000000401000-0x0000000000404000-memory.dmp

          Filesize

          12KB

        • memory/2332-13-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/2332-5-0x0000000000401000-0x0000000000404000-memory.dmp

          Filesize

          12KB

        • memory/2948-31-0x00000000775F2000-0x00000000775F3000-memory.dmp

          Filesize

          4KB

        • memory/2948-42-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/2948-43-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/2948-39-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/2948-38-0x0000000000070000-0x0000000000071000-memory.dmp

          Filesize

          4KB

        • memory/2948-37-0x00000000775F2000-0x00000000775F3000-memory.dmp

          Filesize

          4KB

        • memory/2948-29-0x00000000029B0000-0x00000000029B1000-memory.dmp

          Filesize

          4KB

        • memory/2948-32-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB