Analysis

  • max time kernel
    151s
  • max time network
    142s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    01/02/2022, 15:37

General

  • Target
    853f52243ffdb3d14c9657b923e8d6ef6accf14c43a758e47e0df33e775883a6.exe
  • Size 233KB
  • Sample220201-s2tr4shbf2
  • SHA256 853f52243ffdb3d14c9657b923e8d6ef6accf14c43a758e47e0df33e775883a6
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Extracted

Path
  • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\ako-readme.txt

  • ako

Ransom Note
  • Your network have been locked. All your files, documents, photos, databases and other important data are encrypted and have the extension: .c0A6vQ Backups and shadow copies also encrypted or removed. Any third-party software may damage encrypted data but not recover. From this moment, it will be impossible to use files until they are decrypted. The only method of recovering files is to purchase an unique private key. Only we can give you this key and only we can recovery your files. To get info (decrypt your files) follow this steps: 1) Download and install Tor Browser: https://www.torproject.org/download/ 2) Open our website in TOR: http://kwvhrdibgmmpkhkidrby4mccwqpds5za6uo2thcw5gz75qncv7rbhyad.onion/U0T9NR3RCU3PNABN 3) Paste your ID in form (you can find your ID below) !! ATTENTION !! !! Any third - party software may damage encrypted data but not recover. !! DO NOT MODIFY ENCRYPTED FILES !! DO NOT CHANGE YOUR ID !! DO NOT REMOVE YOUR ID.KEY FILE --- BEGIN PERSONAL ID --- eyJleHQiOiIuYzBBNnZRIiwgImtleSI6ImF6R2VzWXROWXpOWDFTOVBpZm5icG1 wRWNBTnZzQ2RuZjErTmNpa2p2cWVIcXRTTkp4b1hnZktCbTJJb2l3TEF3M21uQ 0FJVTlkb2s0eEZLZEh4WGFMSEdZNCtvd0syTkxuZy9Hc3Y1aXhYYzAvL0QvWWF YMzYvWk11MmEvTXd4SkxHaTFOcVQrcmtoMEZiVDZWL0kyLzVIWWFRTWE0NU9ma 1dNazhJV2prN3d5dFg3bFNEZG5LbTVRKzNvbHpOSHgwVUprS0krSVVNRmlNNC8 xRjF3ZFpKZm9xVXhUR2JWU2E0MVJTQm9IWUJuckNFZ2ZGT09HMDFJZzhDdm16Z XFZL1BYeG9KMUZyMlVmb1BDMUh1cDQ0MTU4aTVaWWMvc1IzRndMVjlQaVorOC9 IVnBTUVNoV21aMlBncWdqVDZYc1hzbU5BRDQzdTRsd09YRXRTTmVnUT09IiwgI m5ldHdvcmsiOiJmYWxzZSIsICJzdWJpZCI6IjAiLCAidmVyIjoiMC41In0= --- END PERSONAL ID ---
URLs
  • http://kwvhrdibgmmpkhkidrby4mccwqpds5za6uo2thcw5gz75qncv7rbhyad.onion/U0T9NR3RCU3PNABN

Signatures

  • Ako

    Ransomware strain discovered in early 2020.

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Enumerates connected drives 3 TTPs 24 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Interacts with shadow copies 2 TTPs 3 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 63 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\853f52243ffdb3d14c9657b923e8d6ef6accf14c43a758e47e0df33e775883a6.exe
    "C:\Users\Admin\AppData\Local\Temp\853f52243ffdb3d14c9657b923e8d6ef6accf14c43a758e47e0df33e775883a6.exe"
    1⤵
    • Enumerates connected drives
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:1848
    • C:\Windows\SysWOW64\vssadmin.exe
      vssadmin.exe Delete Shadows /All /Quiet
      2⤵
      • Interacts with shadow copies
      PID:1108
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      wmic.exe SHADOWCOPY /nointeractive
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:564
    • C:\Windows\SysWOW64\vssadmin.exe
      vssadmin.exe Delete Shadows /All /Quiet
      2⤵
      • Interacts with shadow copies
      PID:1092
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      wmic.exe SHADOWCOPY /nointeractive
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1996
    • C:\Windows\SysWOW64\vssadmin.exe
      vssadmin.exe Delete Shadows /All /Quiet
      2⤵
      • Interacts with shadow copies
      PID:1820
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      wmic.exe SHADOWCOPY /nointeractive
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1688
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:876

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1848-55-0x0000000075421000-0x0000000075423000-memory.dmp