Analysis

  • max time kernel
    184s
  • max time network
    170s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    01/02/2022, 15:37

General

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

Malware Config

Extracted

Path
  • 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: .l0h2oh 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 --- eyJleHQiOiIubDBoMm9oIiwgImtleSI6IlB1RE9LTzZQejhWVHFhVFBCY1hBQm5 YT3d6VUZXcjFoeVJ1WjNHVmYxaTBKVWsyOVFXTjlrZmhoTi8rbjFyZzFOcE9JZ FNlaFpnWWNsbSs3ODdZY2J0UENOS2N6TVdRMXkzZEtsVUYwTFRSR2ZzOFNlaGZ xZ0pqNURRMWsxR0lsZ0JtRW1qNnk3Z2pGRytWb0NpR1dEQU45WEtqRWR3ZEE2b EFlbXIvVlViRzhINjdKTE5lUUhnM0lBem8rUDZveVI0NUNYekJUZlFPNmZLQXg 0Ulh6dm9sQUtnUEVPUVhPV3B1b3RPcVVCV2hkZEMxaEpKbkdHN2NhZCtqYXFLY XNlRGhwV1k4U1lpRm5zelptTjAvTVVPTHp5dzJwUVgreVFYN3ZPYU9HWFNraVM 3SjZ0ei9zYzNMU3hvbTh6anZCUkRrN1FldUFSL25PVEZHUDN2cE91dz09IiwgI m5ldHdvcmsiOiJmYWxzZSIsICJzdWJpZCI6IjAiLCAidmVyIjoiMC41In0= --- END PERSONAL ID ---
URLs
  • http://kwvhrdibgmmpkhkidrby4mccwqpds5za6uo2thcw5gz75qncv7rbhyad.onion/U0T9NR3RCU3PNABN

Signatures

  • Ako

    Ransomware strain discovered in early 2020.

  • Sets service image path in registry 2 TTPs
  • Enumerates connected drives 3 TTPs 24 IoCs

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

  • Drops file in Windows directory 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies data under HKEY_USERS 41 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 9 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:2848
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      wmic.exe SHADOWCOPY /nointeractive
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1556
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      wmic.exe SHADOWCOPY /nointeractive
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3564
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      wmic.exe SHADOWCOPY /nointeractive
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3108
  • C:\Windows\System32\WaaSMedicAgent.exe
    C:\Windows\System32\WaaSMedicAgent.exe b4a887ab5ef6e1ffd04f3c1bf96c0f1a LDYsgnA3jkCrwiQahBABGA.0.1.0.0.0
    1⤵
    • Modifies data under HKEY_USERS
    PID:5056
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:2516

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/2516-130-0x000001CE22390000-0x000001CE223A0000-memory.dmp

        memory/2516-137-0x000001CE25770000-0x000001CE25774000-memory.dmp