Analysis

  • max time kernel
    94s
  • max time network
    115s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-01-2025 02:13

General

  • Target

    f282ef8cc13990f6473713a2fa5d7c52f76997047b4cf8e5a283f593c844859b.dll

  • Size

    212KB

  • MD5

    a9c29fdae85b6b1fee5ac89362ee18f5

  • SHA1

    7c6bf73e1cd74a84ae225ffd95c29073b4cad80c

  • SHA256

    f282ef8cc13990f6473713a2fa5d7c52f76997047b4cf8e5a283f593c844859b

  • SHA512

    4ab43237b43934e8aef92f1602501e1738715fac8e98c7af4653f0ab30bf356f40f99b22d2e0a62ffe4fe5371e3d5d62ab1939ca54e5ab85008625212e99b579

  • SSDEEP

    3072:YZ2hdMrfxwGT9y7ehRZUSerb5YpBN+5pC8JWLdOOKXR2lmc8uZm6mdP0w8uCoiMO:Y8hddGKYbN+u8JWLUOKXR2+6qcLN3

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 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

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\f282ef8cc13990f6473713a2fa5d7c52f76997047b4cf8e5a283f593c844859b.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2356
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\f282ef8cc13990f6473713a2fa5d7c52f76997047b4cf8e5a283f593c844859b.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1084
      • 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:3424
        • 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:3528
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:3948
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 3948 -s 204
                6⤵
                • Program crash
                PID:4772
            • 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:3336
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3336 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:1196
            • 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:348
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:348 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:4732
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1084 -s 596
          3⤵
          • Program crash
          PID:2692
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1084 -ip 1084
      1⤵
        PID:2660
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3948 -ip 3948
        1⤵
          PID:628

        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

          eec6845b257a7c8f95b25485b3666ae4

          SHA1

          79e6f675b80bc885bda844e766088a62d84ded75

          SHA256

          70a3cfb8ce21db27ecfb8143c459eda8218c5f7a0db0945c3117cbf5c180eb6d

          SHA512

          b6ceaabb99fb2011f9dd6ae4b59e3435c397204fcd4b3168e65d6616a85d49d13f80cd11a191e223609538d4f144103757f730c61acd21f4053bb5ecb6fb4f1f

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

          Filesize

          404B

          MD5

          4120f512bc5e6e57be6c809c801e5dc7

          SHA1

          e526a3c20dc8cb200a34aec0d9945590bf3697b5

          SHA256

          88f1e3cbbe40969b0d4443b9e78a9352c651bdc28242ef7f34362357760f4a56

          SHA512

          6f8815ccb3212023f703a51a35a664d7c668172202da6ed257d2667be419060e12aa2b88c6f4b0b7b0376a9e4349653c140d012731cca265703d371788c1e0a8

        • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{D2108AED-D478-11EF-B9D5-FA89EA07D49F}.dat

          Filesize

          5KB

          MD5

          d2fc56f8b266aebe5df25aedaee1c48c

          SHA1

          79cc1afaaaaa676e7612b9af2894ccdeafb94dd4

          SHA256

          c93bd117e06f2ba8bb217e248b6dd683200932f1439621a1f4f0544c9dbecee1

          SHA512

          74dcaede8867fa2811fd4764a2931426b105555e9b63b4f37e4a756aaa81130b7e6a630db2a8693b4dfb96fb49e6b44949e17c6af6e7f2c9bb42e1af091253da

        • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{D21550DF-D478-11EF-B9D5-FA89EA07D49F}.dat

          Filesize

          3KB

          MD5

          2de3a5fbcd9d8735e187007e67c2122e

          SHA1

          37543dfeba921e921b3e7e0824f7052b69605ccd

          SHA256

          87e6c9c5c707bbb8ed5478d4c326474fcfc839816479c8a5e8c18c63499611fc

          SHA512

          c810b35ca89458221a283e907bb45f124215d45f8e625ce6d8e08bdbc85394c27ded43612e92c411007f8ef0d64ed8c553d182f1791a11ecc0666547e52cc7e8

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\FQRZN8O7\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/1084-35-0x0000000075400000-0x0000000075438000-memory.dmp

          Filesize

          224KB

        • memory/1084-0-0x0000000075400000-0x0000000075438000-memory.dmp

          Filesize

          224KB

        • memory/3424-12-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3424-14-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3424-10-0x00000000008A0000-0x00000000008A1000-memory.dmp

          Filesize

          4KB

        • memory/3424-27-0x0000000000401000-0x0000000000404000-memory.dmp

          Filesize

          12KB

        • memory/3424-13-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3424-11-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3424-9-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3424-8-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3424-7-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3424-6-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3424-5-0x0000000000401000-0x0000000000404000-memory.dmp

          Filesize

          12KB

        • memory/3528-29-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3528-37-0x00000000779D2000-0x00000000779D3000-memory.dmp

          Filesize

          4KB

        • memory/3528-36-0x0000000000070000-0x0000000000071000-memory.dmp

          Filesize

          4KB

        • memory/3528-38-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3528-41-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3528-28-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3528-30-0x0000000000A10000-0x0000000000A11000-memory.dmp

          Filesize

          4KB

        • memory/3528-31-0x00000000779D2000-0x00000000779D3000-memory.dmp

          Filesize

          4KB

        • memory/3948-33-0x0000000000FF0000-0x0000000000FF1000-memory.dmp

          Filesize

          4KB

        • memory/3948-34-0x0000000000FD0000-0x0000000000FD1000-memory.dmp

          Filesize

          4KB