Analysis

  • max time kernel
    96s
  • max time network
    97s
  • 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 05:46

General

  • Target

    0f50d970d712f542762c8c94b8ea5f8b6bb8e5fdf65072cae0ba0e919bb1577dN.exe

  • Size

    100KB

  • MD5

    f11bf26c16e24ef0e8f7d1d5706d38f0

  • SHA1

    592499371eed136a9dbd524d9b3216ed917b6887

  • SHA256

    0f50d970d712f542762c8c94b8ea5f8b6bb8e5fdf65072cae0ba0e919bb1577d

  • SHA512

    6d574e80c1886a5b6efbe35514b09f9c41b6efdd57a9fbddf1ef9256dbac88257b472ca2882158e3b7f2d157328dbe979824b4c0ce6fe7f8db56c2f1faada57e

  • SSDEEP

    3072:y/BI4QbZiKLq6RObXUKk6Ztd2/v0PFk8jwaaHw7Koj4reP:eOXYKeqoE/v0

Malware Config

Signatures

  • Ramnit

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

  • Ramnit family
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 6 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 38 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0f50d970d712f542762c8c94b8ea5f8b6bb8e5fdf65072cae0ba0e919bb1577dN.exe
    "C:\Users\Admin\AppData\Local\Temp\0f50d970d712f542762c8c94b8ea5f8b6bb8e5fdf65072cae0ba0e919bb1577dN.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4452
    • C:\Windows\SysWOW64\svchost.exe
      C:\Windows\system32\svchost.exe
      2⤵
        PID:3700
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3700 -s 204
          3⤵
          • Program crash
          PID:2260
      • C:\Program Files (x86)\Internet Explorer\iexplore.exe
        "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:5104
        • C:\Program Files\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
          3⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:724
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:724 CREDAT:17410 /prefetch:2
            4⤵
            • System Location Discovery: System Language Discovery
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:4936
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:724 CREDAT:17416 /prefetch:2
            4⤵
            • System Location Discovery: System Language Discovery
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:4116
      • C:\Windows\SysWOW64\svchost.exe
        C:\Windows\system32\svchost.exe
        2⤵
          PID:4644
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 4644 -s 212
            3⤵
            • Program crash
            PID:4572
        • C:\Program Files (x86)\Internet Explorer\iexplore.exe
          "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
          2⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:4436
          • C:\Program Files\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
            3⤵
            • Modifies Internet Explorer settings
            PID:4704
        • C:\Users\Admin\AppData\Local\Temp\yjkknpcouuxbauqd.exe
          "C:\Users\Admin\AppData\Local\Temp\yjkknpcouuxbauqd.exe"
          2⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:4240
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3700 -ip 3700
        1⤵
          PID:1420
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4644 -ip 4644
          1⤵
            PID:2896

          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

            c07a6cfe11e15bc1916af2154918be22

            SHA1

            c540631f30a0bdb373ebc0ef89f551a1555be1e7

            SHA256

            89e735c5112e862a8620a7f0535ab6c6f0899f40bdbfa677b87472b663c10bf3

            SHA512

            4b35cb396e92ebfd17a174be1f8e0b189a2f3c74b88b1c78a16299890ddc665dc51dd22655b7f13bb60ddfbcec9d65741e6791b95d080aaeb91cb192074a7696

          • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver4A91.tmp

            Filesize

            15KB

            MD5

            1a545d0052b581fbb2ab4c52133846bc

            SHA1

            62f3266a9b9925cd6d98658b92adec673cbe3dd3

            SHA256

            557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

            SHA512

            bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

          • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\DQ67RYHS\suggestions[1].en-US

            Filesize

            17KB

            MD5

            5a34cb996293fde2cb7a4ac89587393a

            SHA1

            3c96c993500690d1a77873cd62bc639b3a10653f

            SHA256

            c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

            SHA512

            e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

          • C:\Users\Admin\AppData\Local\Temp\yjkknpcouuxbauqd.exe

            Filesize

            100KB

            MD5

            f11bf26c16e24ef0e8f7d1d5706d38f0

            SHA1

            592499371eed136a9dbd524d9b3216ed917b6887

            SHA256

            0f50d970d712f542762c8c94b8ea5f8b6bb8e5fdf65072cae0ba0e919bb1577d

            SHA512

            6d574e80c1886a5b6efbe35514b09f9c41b6efdd57a9fbddf1ef9256dbac88257b472ca2882158e3b7f2d157328dbe979824b4c0ce6fe7f8db56c2f1faada57e

          • memory/3700-9-0x0000000000F80000-0x0000000000F81000-memory.dmp

            Filesize

            4KB

          • memory/3700-8-0x0000000000FA0000-0x0000000000FA1000-memory.dmp

            Filesize

            4KB

          • memory/4240-45-0x0000000000400000-0x0000000000439F88-memory.dmp

            Filesize

            231KB

          • memory/4240-47-0x0000000000400000-0x000000000043A000-memory.dmp

            Filesize

            232KB

          • memory/4240-48-0x0000000000400000-0x0000000000439F88-memory.dmp

            Filesize

            231KB

          • memory/4452-19-0x0000000000400000-0x0000000000439F88-memory.dmp

            Filesize

            231KB

          • memory/4452-5-0x0000000000A10000-0x0000000000A11000-memory.dmp

            Filesize

            4KB

          • memory/4452-18-0x0000000000400000-0x0000000000439F88-memory.dmp

            Filesize

            231KB

          • memory/4452-20-0x0000000077342000-0x0000000077343000-memory.dmp

            Filesize

            4KB

          • memory/4452-0-0x0000000000400000-0x0000000000439F88-memory.dmp

            Filesize

            231KB

          • memory/4452-6-0x0000000000400000-0x0000000000439F88-memory.dmp

            Filesize

            231KB

          • memory/4452-4-0x0000000000A00000-0x0000000000A01000-memory.dmp

            Filesize

            4KB

          • memory/4452-13-0x0000000000400000-0x0000000000439F88-memory.dmp

            Filesize

            231KB

          • memory/4452-2-0x0000000000400000-0x0000000000439F88-memory.dmp

            Filesize

            231KB

          • memory/4452-42-0x0000000000400000-0x000000000043A000-memory.dmp

            Filesize

            232KB

          • memory/4452-17-0x0000000077342000-0x0000000077343000-memory.dmp

            Filesize

            4KB

          • memory/4452-11-0x0000000000400000-0x0000000000439F88-memory.dmp

            Filesize

            231KB

          • memory/4452-10-0x0000000000400000-0x000000000043A000-memory.dmp

            Filesize

            232KB

          • memory/4452-1-0x0000000000400000-0x000000000043A000-memory.dmp

            Filesize

            232KB