Overview

overview

10

Static

static

4279015e25...53.exe

windows7_x64

10

4279015e25...53.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    158s
  • max time network
    180s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    11-02-2022 07:01

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General

  • Target

    4279015e25f5580e48828595f1ab960220bc74914c93b4114bf38c4906c3ac53.exe

  • Size

    53KB

  • MD5

    4fc879e06fcdb5fddc1f9b36e5ada85f

  • SHA1

    32d5b3b8fc2c477d1480b89c7ba3a531fdfd4c1f

  • SHA256

    4279015e25f5580e48828595f1ab960220bc74914c93b4114bf38c4906c3ac53

  • SHA512

    72666cc1ed9dbeabecddecde105980288b59df924f3ec3f03df37184ce6538a3cabe9197482e945a893ed7b53da5a2e77619f631dc9248fdbb820a2c3de7ff40

Score
10/10
globeimposterpersistenceransomware

Malware Config

Extracted

Path

C:\how_to_back_files.html

Ransom Note
<html> <style type="text/css"> body { background-color: #404040; } { margin: 0; padding: 0; } h1, h3{ text-align: center; text-transform: uppercase; font-weight: normal; } /*---*/ .tabs1{ width: 800px; display: block; margin: auto; position: relative; } .tabs1 .head{ text-align: center; float: top; text-transform: uppercase; font-weight: normal; display: block; padding: 15px; color: #000000; background: #ff0000; } .tabs1 .identi { text-align: center; float: top; display: block; padding: 15px; background: #303030; color: #DFDFDF; } /*---*/ .tabs{ width: 800px; display: block; margin: auto; position: relative; /*height: 30px;*/ background: red; } .tabs .tab{ /*float: left;*/ display: inline-block; } .tabs .tab>input[type="radio"] { position: absolute; top: -9999px; left: -9999px; } .tabs .tab>label { display: block; padding: 6px 15px; font-size: 18x; text-transform: uppercase; cursor: pointer; position: relative; color: #FFF; background: #ff0000; } .tabs .content { z-index: 0;/* or display: none; */ overflow: hidden; width: 800px; /*padding: 25px;*/ position: absolute; top: 100%; left: 0; background: #303030; color: #DFDFDF; opacity:0; transition: opacity 400ms ease-out; } .tabs .content .text{ width: 700px; padding: 25px; } .tabs>.tab>[id^="tab"]:checked + label { top: 0; background: #303030; color: #F5F5F5; outline: 1px solid red; } .tabs>.tab>[id^="tab"]:checked ~ [id^="tab-content"] { z-index: 1;/* or display: block; */ opacity: 1; transition: opacity 400ms ease-out; } </style> <head> <meta charset="utf-8"> <title>HOW TO DECRYPT YOUR FILES</title> </head> <body> <!-- --> <div class="tabs"> <!--tab--> <div class="tab"> <input type="radio" name="tabs" checked="on" id="tab1" /> <div id="tab-content1" class="content"> <h1>Your files are encrypted! </h1> <hr/> <div class="text"> <!--text data --> <center>Your documents, photos, databases and all the rest files encrypted cryptographically strong algoritm.<br> Without a secret key stored with us, the restoration of your files is impossible</center> <br> <center>----------------------------------------------------------</center> You will be able to restore files so: <ul><li>To contact us by e-mail: <strong> [email protected] </strong> & send your personal ID and 3 crypted files, up to 3 MB in size everyone.</li> <li>We will decipher them, as proof that we can do this. Also you receive the instruction where and how many it is necessary to pay.</li> <li>You pay and confirm payment.</li> <li> after payment you receive the DECRYPTOR program, which restored ALL YOUR FILES.</li></ul> <center>---------------------------------------------------------</center> <strong>Your personal ID:</strong> <pre>����������A4 B8 3A CD C2 C5 7D 9B 57 90 87 C9 0E 41 E0 4E 0C 59 C5 FD D2 4B 44 5F A3 FF 6C 83 36 B8 44 4B 26 C6 C0 16 1C 88 4A 45 81 75 45 60 32 91 C6 D2 D9 C5 A3 04 25 01 33 86 78 50 A2 D6 74 60 36 39 01 79 65 2B 8A 4F 69 D6 89 E1 93 C5 F3 BF AC 31 B7 E4 A6 99 23 D6 9A CA 32 21 C3 6E F9 B4 DF 89 A8 31 4C EC 14 9D 21 49 93 31 00 4F 60 AD 1E 90 A9 F2 71 D2 CC 3C A5 AA DE 2E D9 2B 12 15 B6 0E B3 0C A3 C8 4F BF 78 D6 9D 32 24 4E 83 C3 2C 04 5F 90 BF 9F 71 27 5E 0F C8 64 9D 1D A7 1D 5E E0 04 D4 2A 5B BF 85 36 5C 0E 53 72 B1 72 98 D0 20 5A 63 FD 51 C4 BF 84 A4 50 D0 2E 37 A4 2A 47 46 BB 5C AD CE 66 E2 E4 20 E9 8B B4 88 63 FF DE 2D 89 C0 34 F5 E4 AD B3 25 1A D5 DA 74 2B E0 62 1C 45 C7 5E 2E E0 CA D4 00 3A 04 4B 3B 98 EC 49 8D 55 64 3E 8B FD 79 14 EF 4D 65 01 92 F2 A0 52 3B </pre> <center>----------------------------- P.S. ----------------------------------</center> <ul><li>It is in your interest to respond as soon as possible to ensure the recovery of your files, because we will not store your decryption keys on our server for a long time.</li> <li>Be sure to add our email addresses to the trusted list, in your email client's settings. And also check the folder "Spam" when waiting for an email from us.</li> <li>If we do not respond to your message for more than 48 hours, write to the backup email : <strong> [email protected] </strong></li></ul> <!--text data --> </div> </div> </div> </body> </html>������

Signatures

  • GlobeImposter

    GlobeImposter is a ransomware first seen in 2017.

    ransomwareglobeimposter
  • Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
  • Modifies extensions of user files 2 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Drops desktop.ini file(s) 22 IoCs
  • Drops file in Windows directory 8 IoCs
  • Program crash 2 IoCs
  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies data under HKEY_USERS 1 IoCs
  • Modifies registry class 33 IoCs
  • Suspicious use of AdjustPrivilegeToken 45 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4279015e25f5580e48828595f1ab960220bc74914c93b4114bf38c4906c3ac53.exe
    "C:\Users\Admin\AppData\Local\Temp\4279015e25f5580e48828595f1ab960220bc74914c93b4114bf38c4906c3ac53.exe"
    1⤵
    • Modifies extensions of user files
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    PID:1160
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:4788
  • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
    "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
    1⤵
    • Enumerates system info in registry
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5040
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 5040 -s 4452
      2⤵
      • Program crash
      PID:3944
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 5040 -s 4452
      2⤵
      • Program crash
      PID:3908
  • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
    C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:360
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k netsvcs -p -s BITS
    1⤵
    • Modifies data under HKEY_USERS
    PID:1840
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k appmodel -p -s camsvc
    1⤵
      PID:1388
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -pss -s 428 -p 5040 -ip 5040
      1⤵
      • Suspicious use of NtCreateProcessExOtherParentProcess
      • Suspicious use of WriteProcessMemory
      PID:4804

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/1840-139-0x000001FAB7150000-0x000001FAB7154000-memory.dmp

      Filesize

      16KB

      Download

    • memory/4788-131-0x0000013F59FA0000-0x0000013F59FB0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4788-130-0x0000013F59F30000-0x0000013F59F40000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4788-132-0x0000013F5CCB0000-0x0000013F5CCB4000-memory.dmp

      Filesize

      16KB

      Download