Analysis

  • max time kernel
    93s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/12/2024, 03:10

General

  • Target
    5ce23b2a954a3803aa90be4fec60be105e09d15fd24bfca1420db12d65f8e0e9.dll
  • Size 276KB
  • Sample241217-dpe1vszlap
  • SHA256 5ce23b2a954a3803aa90be4fec60be105e09d15fd24bfca1420db12d65f8e0e9
  • MD5 SHA1 SHA512 SSDEEP

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 12 IoCs

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

  • Drops file in Program Files directory 3 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 50 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\5ce23b2a954a3803aa90be4fec60be105e09d15fd24bfca1420db12d65f8e0e9.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4552
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\5ce23b2a954a3803aa90be4fec60be105e09d15fd24bfca1420db12d65f8e0e9.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1376
      • 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:788
        • 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:1672
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:3344
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 3344 -s 204
                6⤵
                • Program crash
                PID:4752
            • 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:2524
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2524 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:2272
            • 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:4072
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4072 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:1252
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3344 -ip 3344
      1⤵
        PID:4916

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

            • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
            • Size 471B
            • SHA256 b783f55456ca301f00aab79b6a0720bfb2450aefd094e6026231fab663152d70
            • MD5 SHA1 SHA512

            7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

            • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
            • Size 404B
            • SHA256 6a68162fd906fe8402b696cf40c0dab9a9e596ee5b0e6a550660434914cc8cca
            • MD5 SHA1 SHA512

            7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

            • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
            • Size 404B
            • SHA256 d9ce11104ecc1163ae961536f814484172c076ecb7a7217cbcf680d464e82592
            • MD5 SHA1 SHA512

            RecoveryStore.{84F778DC-BC24-11EF-B319-622000771059}.dat

            • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{84F778DC-BC24-11EF-B319-622000771059}.dat
            • Size 4KB
            • SHA256 5aeccc7bb42cc989794e68ac287415794863f834ad005872e7f4a154d1d291fe
            • MD5 SHA1 SHA512 SSDEEP

            RecoveryStore.{84F9DB27-BC24-11EF-B319-622000771059}.dat

            • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{84F9DB27-BC24-11EF-B319-622000771059}.dat
            • Size 5KB
            • SHA256 1b5b4480b1bd1b2939fe59d4db801f3a74022c81f7f958f423019bd3e761268b
            • MD5 SHA1 SHA512 SSDEEP

            verF9E1.tmp

            • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verF9E1.tmp
            • Size 15KB
            • SHA256 557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1
            • MD5 SHA1 SHA512 SSDEEP

            suggestions[1].en-US

            • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\8R55UT9S\suggestions[1].en-US
            • Size 17KB
            • SHA256 c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
            • MD5 SHA1 SHA512 SSDEEP

            rundll32mgr.exe

            • Path C:\Windows\SysWOW64\rundll32mgr.exe
            • Size 124KB
            • SHA256 aeb89b034661d5bee4aeb61382abd56affce7f6410100f01cdf4c806a7638825
            • MD5 SHA1 SHA512 SSDEEP

            memory/788-8-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/788-10-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/788-7-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/788-11-0x00000000008B0000-0x00000000008B1000-memory.dmp

            memory/788-12-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/788-15-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/788-13-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/788-6-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/788-4-0x0000000000400000-0x0000000000429000-memory.dmp

            memory/1376-0-0x0000000010000000-0x0000000010047000-memory.dmp

            memory/1672-31-0x00000000772B2000-0x00000000772B3000-memory.dmp

            memory/1672-36-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/1672-37-0x00000000772B2000-0x00000000772B3000-memory.dmp

            memory/1672-38-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/1672-35-0x0000000000070000-0x0000000000071000-memory.dmp

            memory/1672-32-0x0000000020010000-0x0000000020022000-memory.dmp

            memory/1672-41-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/1672-30-0x0000000000060000-0x0000000000061000-memory.dmp

            memory/1672-29-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/1672-25-0x0000000000400000-0x0000000000429000-memory.dmp

            memory/3344-34-0x0000000000D00000-0x0000000000D01000-memory.dmp

            memory/3344-33-0x0000000000D20000-0x0000000000D21000-memory.dmp