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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
    16/01/2025, 23:57

General

  • Target

    51a686be3706e9b20b574706403dd537b90ba73327fd21c6732977c15710557b.dll

  • Size

    504KB

  • MD5

    fa65ea94638f2ca3d0186509d1c6715e

  • SHA1

    edefec8a0f3b71c0fed784b5435462eec8b8578a

  • SHA256

    51a686be3706e9b20b574706403dd537b90ba73327fd21c6732977c15710557b

  • SHA512

    e3eedf70cab653e721580f2d5b77216afbf3ba8ad13feb5158c597c420c99d9185f501c1b27c55b6fd40391682c4e43e0be2ae232fb27e8abbe7fe16c8f72b10

  • SSDEEP

    12288:/h8fZLyb9PzVMBC/HVMOp4PkxHLCYwZckMQMNM3I9zjD:/8F+Pzr/Hfp4MIYwZckMQmMsXD

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 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\51a686be3706e9b20b574706403dd537b90ba73327fd21c6732977c15710557b.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4416
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\51a686be3706e9b20b574706403dd537b90ba73327fd21c6732977c15710557b.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:348
      • 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:4064
        • 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:4004
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:1088
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 1088 -s 204
                6⤵
                • Program crash
                PID:3864
            • 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:3908
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3908 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:1200
            • 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:2324
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2324 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:1080
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1088 -ip 1088
      1⤵
        PID:1140

      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

        c92fce1eb0d9908801ff3b873ec61bf4

        SHA1

        e6b6e3121e4cff4b16aa8bbe2fbb085fed869f57

        SHA256

        bd7bcec12a3c7e865a9ce9ea55c0bc1373d6bb21ae3265ca53714225f4ab5015

        SHA512

        c9f17160fd77fcedab7ee361a865286cf5cb6646a5f1a162bc92936f484701d1edc0ee0796e34786bd7de420574a37972b10e583d3e1ecd6f9cdecb3d77897c4

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

        Filesize

        404B

        MD5

        e07f8e4625a59b336518f022aac89218

        SHA1

        1c9df9170cd5a9a636811b5f50f5ab600cf39b67

        SHA256

        3f35ac8c3d9c92c1647740ba1afbcb7718a01001bc3df58a52be962f601a55e9

        SHA512

        2421753f14f79803fdf8c188a4acfa1d51d76bf30038e05fbe2b721b772b660820699e47d84d171b31a84cd51fb172cc7efb751d21e1e608557af5adc2aeb017

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{9FA07D9F-D465-11EF-9361-520873AEBE93}.dat

        Filesize

        5KB

        MD5

        b2b21fb1cbe58e1525116c15b77700e2

        SHA1

        49be3212c39652bcf3683f198cd6c7e540c39349

        SHA256

        dcd67ffc65955a305e875e6d0d97b4fb43b538ea685ad8bd703e35cdc3f4be1d

        SHA512

        76389e6aa7ce03388a6cdd28cc16c5b833c8fb8c644e5c5f7f058856713b2836af50e8a02919a2064a02d551e7142bf2634f45ad41087c1049368ef360a5fd55

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{9FA2DFE1-D465-11EF-9361-520873AEBE93}.dat

        Filesize

        5KB

        MD5

        b11375f75f726f53ae6cf23e66fbf593

        SHA1

        9982185d34aeec78350f4291f15730837a28951c

        SHA256

        20fe4be253337042f3c0df28154781b08c57fd4c98d356fcfd8f9650a2d0a62f

        SHA512

        1d79760595022b0f98a7bcdce6d53eaaf748181474b98d81cbca879ff8490b7355dd0f253ae985fec36d515c5bc2c85fb8b1164dba90e0a185b9284e794aae66

      • 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

        69KB

        MD5

        03a048104272c7aabc167e893cc6d3cd

        SHA1

        304fdf6a45f2e4e422365f836ae526af3cd72af6

        SHA256

        cc3aa2d0788746f8e848b6e59142502ca61afe72c380c6f44b353064567b33d5

        SHA512

        0989ecced26ca343f2924b6407299886fe47b59e00ac9e9f51c0e4145d06f64d6aa0db1c2e28a0fcba343609aef39682916a809b786139c45bcc4adb28ec5df1

      • memory/348-0-0x0000000010000000-0x0000000010083000-memory.dmp

        Filesize

        524KB

      • memory/1088-32-0x0000000000FE0000-0x0000000000FE1000-memory.dmp

        Filesize

        4KB

      • memory/1088-33-0x0000000000FC0000-0x0000000000FC1000-memory.dmp

        Filesize

        4KB

      • memory/4004-34-0x0000000077DB2000-0x0000000077DB3000-memory.dmp

        Filesize

        4KB

      • memory/4004-37-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4004-29-0x0000000000060000-0x0000000000061000-memory.dmp

        Filesize

        4KB

      • memory/4004-30-0x0000000077DB2000-0x0000000077DB3000-memory.dmp

        Filesize

        4KB

      • memory/4004-27-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4004-26-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4004-35-0x0000000000070000-0x0000000000071000-memory.dmp

        Filesize

        4KB

      • memory/4004-36-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4004-40-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4064-5-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4064-12-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4064-13-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4064-9-0x0000000002C50000-0x0000000002C51000-memory.dmp

        Filesize

        4KB

      • memory/4064-14-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4064-10-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4064-7-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4064-6-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB