Analysis

  • max time kernel
    141s
  • max time network
    133s
  • platform
    windows11_x64
  • resource
    win11
  • submitted
    18/08/2021, 18:52

General

  • Target

    a60c5212d52fe1488d2f82989a2947d2.dll

  • Size

    21KB

  • MD5

    a60c5212d52fe1488d2f82989a2947d2

  • SHA1

    0a744d6c76902d28eb6687d66c18b0a354f29b9d

  • SHA256

    10b9b1d8f6bafd9bb57ccfb1da4a658f10207d566781fa5fb3c4394d283e860e

  • SHA512

    afd14daa5bd9448e09f25d561e8be34e16f93a2825129d165e817a4a2a3ffc339efefd6f26e78c4853acfbce7f51c88b81601324b123d8c377d72da15dcf9327

Score
10/10

Malware Config

Extracted

Path

C:\Users\Admin\Documents\readme.txt

Family

magniber

Ransom Note
ALL YOUR DOCUMENTS PHOTOS DATABASES AND OTHER IMPORTANT FILES HAVE BEEN ENCRYPTED! ==================================================================================================== Your files are NOT damaged! Your files are modified only. This modification is reversible. The only 1 way to decrypt your files is to receive the private key and decryption program. Any attempts to restore your files with the third party software will be fatal for your files! ==================================================================================================== To receive the private key and decryption program follow the instructions below: 1. Download "Tor Browser" from https://www.torproject.org/ and install it. 2. In the "Tor Browser" open your personal page here: http://78702cc0041492a03edihlxbl.l5nmxg2syswnc6s3724evnip5uktj7msy3pgowkbcidbei3nbysi7ead.onion/dihlxbl Note! This page is available via "Tor Browser" only. ==================================================================================================== Also you can use temporary addresses on your personal page without using "Tor Browser": http://78702cc0041492a03edihlxbl.uponmix.xyz/dihlxbl http://78702cc0041492a03edihlxbl.flysex.space/dihlxbl http://78702cc0041492a03edihlxbl.partscs.site/dihlxbl http://78702cc0041492a03edihlxbl.codehes.uno/dihlxbl Note! These are temporary addresses! They will be available for a limited amount of time!
URLs

http://78702cc0041492a03edihlxbl.l5nmxg2syswnc6s3724evnip5uktj7msy3pgowkbcidbei3nbysi7ead.onion/dihlxbl

http://78702cc0041492a03edihlxbl.uponmix.xyz/dihlxbl

http://78702cc0041492a03edihlxbl.flysex.space/dihlxbl

http://78702cc0041492a03edihlxbl.partscs.site/dihlxbl

http://78702cc0041492a03edihlxbl.codehes.uno/dihlxbl

Signatures

  • Magniber Ransomware

    Ransomware family widely seen in Asia being distributed by the Magnitude exploit kit.

  • Process spawned unexpected child process 4 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Drops file in System32 directory 6 IoCs
  • Drops file in Windows directory 6 IoCs
  • Interacts with shadow copies 2 TTPs 2 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Modifies data under HKEY_USERS 64 IoCs
  • Modifies registry class 7 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\a60c5212d52fe1488d2f82989a2947d2.dll,#1
    1⤵
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:3180
    • C:\Windows\system32\cmd.exe
      cmd.exe /c "%SystemRoot%\system32\wbem\wmic process call create "cmd /c computerdefaults.exe""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4220
      • C:\Windows\system32\wbem\WMIC.exe
        C:\Windows\system32\wbem\wmic process call create "cmd /c computerdefaults.exe"
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4592
    • C:\Windows\system32\cmd.exe
      cmd.exe /c "%SystemRoot%\system32\wbem\wmic process call create "cmd /c computerdefaults.exe""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4216
      • C:\Windows\system32\wbem\WMIC.exe
        C:\Windows\system32\wbem\wmic process call create "cmd /c computerdefaults.exe"
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4588
  • C:\Windows\system32\cmd.exe
    cmd /c computerdefaults.exe
    1⤵
    • Process spawned unexpected child process
    • Suspicious use of WriteProcessMemory
    PID:3032
    • C:\Windows\system32\ComputerDefaults.exe
      computerdefaults.exe
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4972
      • C:\Windows\system32\wbem\wmic.exe
        "C:\Windows\system32\wbem\wmic.exe" process call create "vssadmin.exe Delete Shadows /all /quiet"
        3⤵
          PID:3652
    • C:\Windows\system32\cmd.exe
      cmd /c computerdefaults.exe
      1⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:3020
      • C:\Windows\system32\ComputerDefaults.exe
        computerdefaults.exe
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4932
        • C:\Windows\system32\wbem\wmic.exe
          "C:\Windows\system32\wbem\wmic.exe" process call create "vssadmin.exe Delete Shadows /all /quiet"
          3⤵
            PID:4484
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe Delete Shadows /all /quiet
        1⤵
        • Process spawned unexpected child process
        • Interacts with shadow copies
        PID:476
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe Delete Shadows /all /quiet
        1⤵
        • Process spawned unexpected child process
        • Interacts with shadow copies
        PID:4216
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
          PID:4636
        • C:\Windows\System32\svchost.exe
          C:\Windows\System32\svchost.exe -k netsvcs -p -s BITS
          1⤵
          • Drops file in Windows directory
          • Modifies data under HKEY_USERS
          PID:4124
        • C:\Windows\system32\svchost.exe
          C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p -s SSDPSRV
          1⤵
            PID:4620
          • C:\Windows\System32\sihclient.exe
            C:\Windows\System32\sihclient.exe /cv sjuMneG/lkSK2C7c/HduvQ.0.2
            1⤵
            • Drops file in System32 directory
            • Drops file in Windows directory
            • Modifies data under HKEY_USERS
            PID:3132
          • C:\Windows\System32\WaaSMedicAgent.exe
            C:\Windows\System32\WaaSMedicAgent.exe f3a62cb651cc7b970e2dca730e260b2e sjuMneG/lkSK2C7c/HduvQ.0.1.0.3.0
            1⤵
            • Drops file in System32 directory
            • Modifies data under HKEY_USERS
            PID:772
          • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.22000.100_none_04da31ff4c67c24a\TiWorker.exe
            C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.22000.100_none_04da31ff4c67c24a\TiWorker.exe -Embedding
            1⤵
            • Drops file in Windows directory
            PID:1304
          • C:\Windows\System32\WaaSMedicAgent.exe
            C:\Windows\System32\WaaSMedicAgent.exe f3a62cb651cc7b970e2dca730e260b2e sjuMneG/lkSK2C7c/HduvQ.0.1.0.3.0
            1⤵
            • Drops file in System32 directory
            • Modifies data under HKEY_USERS
            PID:2044
          • C:\Windows\System32\WaaSMedicAgent.exe
            C:\Windows\System32\WaaSMedicAgent.exe f3a62cb651cc7b970e2dca730e260b2e sjuMneG/lkSK2C7c/HduvQ.0.1.0.3.0
            1⤵
            • Modifies data under HKEY_USERS
            PID:2504

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • memory/3180-151-0x0000028A88F50000-0x0000028A88F51000-memory.dmp

            Filesize

            4KB

          • memory/3180-150-0x0000028A88F40000-0x0000028A88F41000-memory.dmp

            Filesize

            4KB

          • memory/3180-152-0x0000028A88F80000-0x0000028A88F81000-memory.dmp

            Filesize

            4KB

          • memory/3180-153-0x0000028A88FA0000-0x0000028A88FA1000-memory.dmp

            Filesize

            4KB

          • memory/3180-154-0x0000028A88FB0000-0x0000028A88FB1000-memory.dmp

            Filesize

            4KB

          • memory/3180-155-0x0000028A89A10000-0x0000028A89A11000-memory.dmp

            Filesize

            4KB

          • memory/3180-156-0x0000028A89A20000-0x0000028A89A24000-memory.dmp

            Filesize

            16KB

          • memory/3180-163-0x0000028A8B530000-0x0000028A8B531000-memory.dmp

            Filesize

            4KB

          • memory/3180-146-0x0000028A88B70000-0x0000028A88B71000-memory.dmp

            Filesize

            4KB

          • memory/3180-149-0x0000028A88F30000-0x0000028A88F31000-memory.dmp

            Filesize

            4KB

          • memory/3180-148-0x0000028A88F20000-0x0000028A88F21000-memory.dmp

            Filesize

            4KB

          • memory/3180-147-0x0000028A88B80000-0x0000028A88B81000-memory.dmp

            Filesize

            4KB

          • memory/4124-168-0x000002AEEB3A0000-0x000002AEEB3A4000-memory.dmp

            Filesize

            16KB

          • memory/4124-166-0x000002AEEAF60000-0x000002AEEAF70000-memory.dmp

            Filesize

            64KB

          • memory/4124-167-0x000002AEEAFE0000-0x000002AEEAFF0000-memory.dmp

            Filesize

            64KB