Analysis

  • max time kernel
    96s
  • max time network
    115s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/10/2024, 05:44

General

  • Target

    3260d05b6d860de1a73ce95f42e152e1b996846497a9ce8324f202b286bda6eeN.dll

  • Size

    132KB

  • MD5

    fda2c471d0bc34c63db2090e1b186cc0

  • SHA1

    953a62993aa97fed0b4e474a50ee9adf06689707

  • SHA256

    3260d05b6d860de1a73ce95f42e152e1b996846497a9ce8324f202b286bda6ee

  • SHA512

    b94b736c13a414b18f25d86a81276ea57b8485a953d07a208b297e77f9226a6b2748c296fc72be32975e77f9f2e2ddbcf28a2b2e03875789547a62b61e5a4318

  • SSDEEP

    1536:R2o6nwzfqmUSa4Ndg+VCrbDdJF5mepY1ur6EMmNNmY4JDzwm:Mo6nwLqrSa4I+VCPt8qY1w6MQY0Dzz

Malware Config

Signatures

  • Ramnit

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

  • Executes dropped EXE 2 IoCs
  • Drops file in System32 directory 1 IoCs
  • UPX packed file 13 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 51 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\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\3260d05b6d860de1a73ce95f42e152e1b996846497a9ce8324f202b286bda6eeN.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2340
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\3260d05b6d860de1a73ce95f42e152e1b996846497a9ce8324f202b286bda6eeN.dll
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2488
      • C:\Windows\SysWOW64\regsvr32mgr.exe
        C:\Windows\SysWOW64\regsvr32mgr.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:2840
        • 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:4172
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:4300
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 4300 -s 204
                6⤵
                • Program crash
                PID:4416
            • 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:2704
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2704 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:2764
            • 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:2100
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2100 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:3528
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4300 -ip 4300
      1⤵
        PID:3428

      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

              db7c83e09ebc4317f2bf2df7f66b8513

              SHA1

              29d58ef43f72ce7cf79ce6109d038a6c9b4873f0

              SHA256

              1ae4c8aa37bf433bc5b3b45e017c95bf843c7dbbe348c78c7ab6f3cad0fda4b8

              SHA512

              6eb46ae0c3e091ba13b1c0e3fb6de568882940df7968d0e1297568ea5356a4691f2a869c7c9ac9e9642bcc2e4e1388d00b15c663276143e8cb5015ab89c27867

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

              Filesize

              404B

              MD5

              b5950576ba581278c8635d9b859f7513

              SHA1

              bcee3aba53530cba630aa2d7ef3ec6e28d33faa6

              SHA256

              2c98079a1662596d983e108fb1b6487ad08de97667c4a93ca59067a2fdf7a072

              SHA512

              6537abe26cc6ee5e1dd29fb0bc944499f1f33176310edd07841998df05c7bd6a8aec72b97b8a433e35bdcb1bdf24278ad29ce99e6f4407bee0b0a59d4b5d2144

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

              Filesize

              404B

              MD5

              d12f8b4aa9093dbfefb759a65236ef2f

              SHA1

              bc3bfb5a2957a161f27db0bdc6430c117079f8fd

              SHA256

              a9f162d86b9f5035da3a98e6124b37cefcaa1c9ec6bd6e740e50b9b612f23ebf

              SHA512

              54856c16ab61bc900633822535983e7bd5745de89e1ea7e85301eb9ee02c3aa0b0a22e6c1606fe06ad83230a29a15431d5610cb7ec23afa6c90861a956f3368c

            • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{F6B74C5B-82DC-11EF-BB4F-4A4A300BA5D9}.dat

              Filesize

              5KB

              MD5

              25b9ac026ef665ccb85f41138175b4fe

              SHA1

              2fd59685affea80881615ea8bec54b908e42c2a4

              SHA256

              74c33a4f1033e19146c8526049971f87da159f4472599870c5a0504c68d2f4eb

              SHA512

              1ad94df20250200ba146a789bbd22627b89425441dac5d6675cf95fad657593ffdce48b27043ea37b04c169a5b5ca914b338f115f97210e068dc1a3a38230a5d

            • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{F6B9AEAC-82DC-11EF-BB4F-4A4A300BA5D9}.dat

              Filesize

              3KB

              MD5

              018e7163e9043455bc3e9b81ff6d25ae

              SHA1

              9c685146be45b4cd1911e7691b54f79fccc51524

              SHA256

              fe53d70e702343db8b2c3ff4a653b771574b11523c9fcf92edcbbfa432165bf4

              SHA512

              5769480622b75b8bf2b9edc9e9a8b55a49ac2ce8f3be902debf75dacbb7daa760930b3aa8349af5370f910487b59c9737fa4e3cb8debc5b3f3c0ddc475f36f54

            • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver2371.tmp

              Filesize

              15KB

              MD5

              1a545d0052b581fbb2ab4c52133846bc

              SHA1

              62f3266a9b9925cd6d98658b92adec673cbe3dd3

              SHA256

              557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

              SHA512

              bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

            • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\O8WYVOD7\suggestions[1].en-US

              Filesize

              17KB

              MD5

              5a34cb996293fde2cb7a4ac89587393a

              SHA1

              3c96c993500690d1a77873cd62bc639b3a10653f

              SHA256

              c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

              SHA512

              e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

            • C:\Windows\SysWOW64\regsvr32mgr.exe

              Filesize

              96KB

              MD5

              8c51fd9d6daa7b6137634de19a49452c

              SHA1

              db2a11cca434bacad2bf42adeecae38e99cf64f8

              SHA256

              528d190fc376cff62a83391a5ba10ae4ef0c02bedabd0360274ddc2784e11da3

              SHA512

              b93dd6c86d0618798a11dbaa2ded7dac659f6516ca4a87da7297601c27f340fffa4126a852c257654d562529273d8a3f639ec020ab54b879c68226deae549837

            • memory/2488-3-0x0000000000E80000-0x0000000000EA4000-memory.dmp

              Filesize

              144KB

            • memory/2488-2-0x0000000000E80000-0x0000000000EA4000-memory.dmp

              Filesize

              144KB

            • memory/2488-0-0x0000000000E80000-0x0000000000EA4000-memory.dmp

              Filesize

              144KB

            • memory/2840-29-0x0000000000401000-0x0000000000405000-memory.dmp

              Filesize

              16KB

            • memory/2840-18-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/2840-13-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/2840-14-0x00000000008F0000-0x00000000008F1000-memory.dmp

              Filesize

              4KB

            • memory/2840-12-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/2840-11-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/2840-10-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/2840-8-0x0000000000401000-0x0000000000405000-memory.dmp

              Filesize

              16KB

            • memory/2840-6-0x0000000000400000-0x0000000000435000-memory.dmp

              Filesize

              212KB

            • memory/2840-9-0x0000000000400000-0x0000000000435000-memory.dmp

              Filesize

              212KB

            • memory/2840-15-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/2840-16-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/4172-39-0x0000000077732000-0x0000000077733000-memory.dmp

              Filesize

              4KB

            • memory/4172-28-0x0000000000400000-0x0000000000435000-memory.dmp

              Filesize

              212KB

            • memory/4172-40-0x0000000000070000-0x0000000000071000-memory.dmp

              Filesize

              4KB

            • memory/4172-41-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/4172-33-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/4172-32-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/4172-44-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/4172-45-0x0000000000400000-0x0000000000421000-memory.dmp

              Filesize

              132KB

            • memory/4172-36-0x0000000020010000-0x0000000020022000-memory.dmp

              Filesize

              72KB

            • memory/4172-35-0x0000000077732000-0x0000000077733000-memory.dmp

              Filesize

              4KB

            • memory/4172-34-0x0000000000060000-0x0000000000061000-memory.dmp

              Filesize

              4KB

            • memory/4300-38-0x00000000006B0000-0x00000000006B1000-memory.dmp

              Filesize

              4KB

            • memory/4300-37-0x00000000006D0000-0x00000000006D1000-memory.dmp

              Filesize

              4KB