Overview

overview

10

Static

static

10

f0c2c96632...a6.exe

windows7-x64

10

f0c2c96632...a6.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    141s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-08-2023 08:59

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General

  • Target

    f0c2c9663215a97b04f1f97cb34c99c2cf06ba502fd1f1ad4922ead45fa442a6.exe

  • Size

    666KB

  • MD5

    bb442cfc088a89e0c353ed20fb8cbf8b

  • SHA1

    1477ae595f2fb3cf7ffdee788b748db253236d0c

  • SHA256

    f0c2c9663215a97b04f1f97cb34c99c2cf06ba502fd1f1ad4922ead45fa442a6

  • SHA512

    ea2b42aa7e9aab775cf607ba0e5034edde3b07a1d913109337cd32bff4f45f6d054e434ccbccdc5a0dbf6901db7431d279c11f8dd8b1b56af1f84dfc3006f5e4

  • SSDEEP

    12288:ZYW1LNT35lDbK/LIVaN8+T7vwqyqhYMhWt918vulA2C9+m:dd35lDbKDIwWUDyqS5omTC9+

Score
10/10
medusalockerevasionransomwarespywarestealertrojan

Malware Config

Extracted

Path

\Device\HarddiskVolume1\Boot\!-Recovery_Instructions-!.html

Ransom Note
<!DOCTYPE html> <html lang="en"> <head> <meta charset='utf-8'> <meta name='viewport' content='width=device-width,initial-scale=1'> <title></title> <style> html, body { background-color: #1a1a1a; } body { padding-top: 1rem !important; font-size: 1.3rem; color: white; } #text h2 { font-size: 2rem; font-weight: 600; line-height: 1.125; } .container { max-width: 1152px; flex-grow: 1; margin: 0 auto; position: relative; width: auto; } .box { background-color: #242424; display: block; padding: 1.25rem; border: 1px solid #303030; } a { color: #00b4d8; text-decoration: none; } a:hover { text-decoration: underline; } li { margin-bottom: 10px; } </style> </head> <body> <div class='container'> <div class='box'> <div id='text'> <h2>If you get this message, your network was hacked!</h2> <p>After we gained full access to your servers, we first downloaded a large amount of sensitive data and then encrypted all the data stored on them.</p> <p>That includes personal information on your clients, partners, your personnel, accounting documents, and other crucial files that are necessary for your company to work normally.</p> <p>We used modern complicated algorithms, so you or any recovery service will not be able to decrypt files without our help, wasting time on these attempts instead of negotiations can be fatal for your company.</p> <p>Make sure to act within <span style='color:#f4a261;'>72</span> hours or the negotiations will be considered failed!</p> <p>Inform your superior management about what's going on.</p> <p> Contact us for pricing and decryption software.</p> <p> Contact us by email:<p> <h2>[email protected]</h2> </p>If you do not receive a response within 24 hours, please contact us at our additional contacts:</p> <p> 1) Download for TOX CHAT https://tox.chat/download.html</p> <p> 2) Open chat<p> <p>Add ID Chat: </p><h2>3C9D49B928FDC3C15F0314217623A71B865909B308576B4B0D10AEA62C98677B4A3F160D5C93</h2> <p>If we did not answer you, leave the chat enabled, the operator will contact you!<p> </p>To verify the possibility of the recovery of your files we can decrypted 1-3 file for free.</p> </p>Attach file to the letter (no more than 5Mb).</p> <h2>If you and us succeed the negotiations we will grant you:</h2> <ul> <li>complete confidentiality, we will keep in secret any information regarding to attack, your company will act as if nothing had happened.</li> <li>comprehensive information about vulnerabilities of your network and security report.</li> <li>software and instructions to decrypt all the data that was encrypted.</li> <li>all sensitive downloaded data will be permanently deleted from our cloud storage and we will provide an erasure log.</li> </ul> <h2>Our options if you act like nothing's happening, refuse to make a deal or fail the negotiations:</h2> <ul> <li>inform the media and independent journalists about what happened to your servers. To prove it we'll publish a chunk of private data that you should have ciphered if you care about potential breaches. Moreover, your company will inevitably take decent reputational loss which is hard to assess precisely.</li> <li>inform your clients, employees, partners by phone, e-mail, sms and social networks that you haven't prevent their data leakage. You will violate laws about private data protection.</li> <li>start DDOS attack on you website and infrastructures.</li> <li>personal data stored will be put on sale on the Darknet to find anyone interested to buy useful information regarding your company. It could be data mining agencies or your market competitors.</li> <li>publish all the discovered vulnerabilities found in your network, so anyone will do anything with it.</li> </ul> <h2>Why pay us?</h2> <p>We care about our reputation. You are welcome to google our cases up and be sure that we don't have a single case of failure to provide what we promissed.</p> <p>Turning this issue to a bug bounty will save your private information, reputation and will allow you to use the security report and avoid this kind of situations in future.</p> <h2>Your personal ID</p> Your ID: 2AFCAEA07886323DAAED7649AF2675088E247FFF843F986063431590D1E538B24354AA6E78A6322320437B9E1E1E31F0813F3B819C64D9EBCB3A49CE9169F5DA<br>AE4F9B9BB33B49F77FE5DFC5ABF6B78D58F743810B987AB3B6E51F72693AA10A2EA51E377080BEFE87B4F553BB7D6106DBDEB589F1CF41FF25994FD259D0<br>3BF8221D249263D95B912CA270B2EF621AF877AFDD065A6B437460AF833F7DDFE7ABF2ABCD93E5A51BC21544044E047FCD9B9BE192215B488C33F0C4B7EE<br>8D3885EA34559556A9B45430473429B0C198C96CAD22AA7201A2304A4E17663D44448399973EB1DFC45463F36240DCFFBACBC4556EF67D59AC0EBC3C53AF<br>D9ECF74DBE0475D8871A2B02F8FF58B9B3B1D398F53C6D7BA3AF34AD76B912ED179001F0B52C3755FF9CB5EC14EBBFE6D2EE2C4AA4094215A6D1981201A7<br>CEABFF5EBBD8546413A07FC91B24531A3FD6614759AE4B281C46FBF62BC4409287581BAB7A5919B50CAB55801D4F349DECC6AABD8221E115A990BBD91F9D<br>FD13C616EFED256439F04B859E0A2CE886826E88792C632C4345CB98FE4F6C098B8F20425B45E1EF76BDA676148232510C6EE8C84FA5C89583AA92CDB435<br>1217D71C4280D1832261F62724C357EA5CCB82EBFA952C63952AF546B28B3CE416549EFEF59867EC3CC9DECFED7D00EC564A79CD60B21B46DA5B743F0E19<br>37FCD544D479743DA66F86B98E9B
Emails
URLs

https://tox.chat/download.html</p>

Signatures

  • MedusaLocker

    Ransomware with several variants first seen in September 2019.

    ransomwaremedusalocker
  • MedusaLocker payload 2 IoCs
  • UAC bypass 3 TTPs 2 IoCs
    evasiontrojan
  • Renames multiple (212) files with added filename extension

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

    ransomware
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Drops desktop.ini file(s) 1 IoCs
  • Enumerates connected drives 3 TTPs 24 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 63 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • System policy modification 1 TTPs 3 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\f0c2c9663215a97b04f1f97cb34c99c2cf06ba502fd1f1ad4922ead45fa442a6.exe
    "C:\Users\Admin\AppData\Local\Temp\f0c2c9663215a97b04f1f97cb34c99c2cf06ba502fd1f1ad4922ead45fa442a6.exe"
    1⤵
    • UAC bypass
    • Drops desktop.ini file(s)
    • Enumerates connected drives
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:4080
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      wmic.exe SHADOWCOPY /nointeractive
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2060
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      wmic.exe SHADOWCOPY /nointeractive
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3540
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      wmic.exe SHADOWCOPY /nointeractive
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3796
  • C:\Users\Admin\AppData\Roaming\svhost.exe
    C:\Users\Admin\AppData\Roaming\svhost.exe
    1⤵
    • Executes dropped EXE
    PID:2388

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\svhost.exe
    Filesize

    666KB

    MD5

    bb442cfc088a89e0c353ed20fb8cbf8b

    SHA1

    1477ae595f2fb3cf7ffdee788b748db253236d0c

    SHA256

    f0c2c9663215a97b04f1f97cb34c99c2cf06ba502fd1f1ad4922ead45fa442a6

    SHA512

    ea2b42aa7e9aab775cf607ba0e5034edde3b07a1d913109337cd32bff4f45f6d054e434ccbccdc5a0dbf6901db7431d279c11f8dd8b1b56af1f84dfc3006f5e4

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  • C:\Users\Admin\AppData\Roaming\svhost.exe
    Filesize

    666KB

    MD5

    bb442cfc088a89e0c353ed20fb8cbf8b

    SHA1

    1477ae595f2fb3cf7ffdee788b748db253236d0c

    SHA256

    f0c2c9663215a97b04f1f97cb34c99c2cf06ba502fd1f1ad4922ead45fa442a6

    SHA512

    ea2b42aa7e9aab775cf607ba0e5034edde3b07a1d913109337cd32bff4f45f6d054e434ccbccdc5a0dbf6901db7431d279c11f8dd8b1b56af1f84dfc3006f5e4

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  • C:\Users\Default\ntuser.dat.LOG2
    Filesize

    536B

    MD5

    3ce3caec9f015e6bbc450d82983101e9

    SHA1

    da80ff8f91b1a3d9e39ccef3313b5243845872af

    SHA256

    a40f589d7365cead930f8176b30ef34aab8879a3ecd38b5ce7d3e017ea74736b

    SHA512

    da71741b1793086fc83413ae8e90176bc0ea52bc9bf65d79eb37043872b59c59119cee22fa1090ddad69b4fafce75417b0f571fb6251b8f9c76b2de4d5be29f2

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  • \Device\HarddiskVolume1\Boot\!-Recovery_Instructions-!.html
    Filesize

    5KB

    MD5

    02eca0ee7c4020c9f5ea9cf83b7b2497

    SHA1

    c7ef78a88b7fb08b98cce40737a16c602c4518b2

    SHA256

    72a1ceb5411c3c0f7c508f3c48442f899e5ada65166207ba79cfbb9bb121c217

    SHA512

    deda04a62c1b473a0ab99ecbc7ba1a3d99e3dd3df6ceadfab8ee939b982a489f7cd3fec915b99c3227f0411c3ac2d71339c2100aa946c0077d751872495eacab

    Download Submit