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Analysis

  • max time kernel
    94s
  • max time network
    116s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/12/2024, 01:03

General

  • Target

    19a84d0c990f027f9af77a60ae4203a3c969838c8c69012cbce938894b133cc9.dll

  • Size

    108KB

  • MD5

    b61e75d963a6954b38f1f7d29eef6445

  • SHA1

    8dc70b25153d95b5c162c23400515f434f974d8d

  • SHA256

    19a84d0c990f027f9af77a60ae4203a3c969838c8c69012cbce938894b133cc9

  • SHA512

    c94c6601016bd50eb6b164dcc017184aac56b9b5502377a491e5e37437ddd78bdeb9c040bec61a228f163f4bf4fa7c1eb5dbb8ee1832513a8f5802fceb98c22e

  • SSDEEP

    3072:0D09MaWLOdfPQdYeW23376WrKMJg1oRuB1yFWgALVfZQg4JfM+tg:0aqOdHQnbKMJg1aAgUMfM+y

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 55 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\19a84d0c990f027f9af77a60ae4203a3c969838c8c69012cbce938894b133cc9.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:556
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\19a84d0c990f027f9af77a60ae4203a3c969838c8c69012cbce938894b133cc9.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1196
      • 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:1520
        • 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:3740
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:2080
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 2080 -s 204
                6⤵
                • Program crash
                PID:4332
            • 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:4252
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4252 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:3048
            • 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:4364
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4364 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:3328
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1196 -s 608
          3⤵
          • Program crash
          PID:1660
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1196 -ip 1196
      1⤵
        PID:1344
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 2080 -ip 2080
        1⤵
          PID:4212

        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

          87f8376b71b1fd35da4b511eff055888

          SHA1

          0c55fba0aa699282bbe4d129dd0ba16d4e377ce9

          SHA256

          a1383ed3b4f8967fb19f5b16bfe41eb3242b296ffc06c1098fbe1d1a04a7003f

          SHA512

          8556ed20a3d9daf8f74b2eceaab6a3773b69d5c9524ba8dbb8af1ad64b2235165e487c41646e357be5906aaa7f0f4c57ff8dc9ea2acc0c87f443d3ad083c9031

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

          Filesize

          404B

          MD5

          697150dafd04c7ceac576309e8019554

          SHA1

          eee8deb68400bdd5861e13654956eebec0391399

          SHA256

          c3b14f8a7df3cc5132184d9d65bf01e2263ee49a395545da7a157894093e0f13

          SHA512

          f44be7aeecc70b9c77b43162dae88da8b084f830b5bc37761c34e89a09210957d1501a9f78d4eb82ce35f4585f2d19b36915490d795937cd43376fd8c1f792a3

        • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{D179700D-B75B-11EF-B9B6-C67090DD1599}.dat

          Filesize

          5KB

          MD5

          d3759d405e051652948fc000410fc36a

          SHA1

          ecdf8d24e34f3e07caaad01b2982504e46e85662

          SHA256

          4ff80b413b0f12b331ccbcdd61cf4f6db5f30256486817f3e2e2f754660e9807

          SHA512

          1dab6dc8d9d6df2bf2cc9afdab9fa24a179f27089693516c008039e4699d34389d66c75b19b6ec76ecb8454c3b118d7cea778d254556039a8787cd360fd86c0d

        • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{D17BD224-B75B-11EF-B9B6-C67090DD1599}.dat

          Filesize

          3KB

          MD5

          af54b93f5ab23faefa2882a0bc0420e3

          SHA1

          61c9582e9020b09737ce0dc3358f1b8b060bdb07

          SHA256

          0cb9663b57c33c89583f1baea8f09425f2929d92c83cb0b42ef0867049b64448

          SHA512

          09c0996761b593c96d6377d87bd4735666202abb333371157ac9dc3a64df69907a8b93fd2a231c66bee55c4b77e92f4ad7759fa73771b512cd4dff3efec9d26a

        • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver73E.tmp

          Filesize

          15KB

          MD5

          1a545d0052b581fbb2ab4c52133846bc

          SHA1

          62f3266a9b9925cd6d98658b92adec673cbe3dd3

          SHA256

          557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

          SHA512

          bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\9MFSIIMR\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/1196-34-0x000000006D240000-0x000000006D25B000-memory.dmp

          Filesize

          108KB

        • memory/1196-1-0x000000006D240000-0x000000006D25B000-memory.dmp

          Filesize

          108KB

        • memory/1520-8-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/1520-12-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/1520-5-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/1520-6-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/1520-7-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/1520-13-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/1520-9-0x00000000008A0000-0x00000000008A1000-memory.dmp

          Filesize

          4KB

        • memory/1520-11-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/2080-33-0x0000000000650000-0x0000000000651000-memory.dmp

          Filesize

          4KB

        • memory/2080-32-0x0000000000670000-0x0000000000671000-memory.dmp

          Filesize

          4KB

        • memory/3740-37-0x0000000077292000-0x0000000077293000-memory.dmp

          Filesize

          4KB

        • memory/3740-27-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3740-20-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3740-40-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3740-41-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3740-36-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3740-35-0x0000000000070000-0x0000000000071000-memory.dmp

          Filesize

          4KB

        • memory/3740-30-0x0000000077292000-0x0000000077293000-memory.dmp

          Filesize

          4KB

        • memory/3740-29-0x0000000000060000-0x0000000000061000-memory.dmp

          Filesize

          4KB