Analysis
-
max time kernel
11s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
-
submitted
02-01-2024 09:11
General
-
Target
wikilab.exe
-
Size
55KB
-
MD5
88389a265bd9b1e9c59fb7053cf45b07
-
SHA1
900b980b7ef5bbbc6a255cffd66900fb68802c25
-
SHA256
f146915a0298daff26ffe85a42b9a9ef68e7a148e3dbe3bc43abb283d96facbd
-
SHA512
da2ebf446db76590834e3b8e828e3895e0febdfa0ee34627b5c6c18cc10ccb85b83dd0410789845c980984eb1021a6c7050ebf1cbfd04e1ce904e0e40113e932
-
SSDEEP
1536:ENeRBl5PT/rx1mzwRMSTdLpJMGl5dPZjlkWBFj:EQRrmzwR5J1VPZiW
Score
10/10
Malware Config
Extracted
Path
C:\info.hta
Ransom Note
<!DOCTYPE HTML PUBLIC '-//W3C//DTD HTML 4.01//EN' 'http://www.w3.org/TR/html4/strict.dtd'>
<html>
<head>
<meta charset='windows-1251'>
<title>encrypted</title>
<HTA:APPLICATION
ICON='msiexec.exe'
SINGLEINSTANCE='yes'
SysMenu="no">
<script language='JScript'>
window.moveTo(50, 50);
window.resizeTo(screen.width - 100, screen.height - 100);
</script>
<style type='text/css'>
body {
font: 15px Tahoma, sans-serif;
margin: 10px;
line-height: 25px;
background: #EDEDED;
}
img {
display:inline-block;
}
.bold {
font-weight: bold;
}
.mark {
background: #D0D0E8;
padding: 2px 5px;
}
.header {
text-align: center;
font-size: 30px;
line-height: 50px;
font-weight: bold;
margin-bottom:20px;
}
.info {
background: #D0D0E8;
border-left: 10px solid #00008B;
}
.alert {
background: #FFE4E4;
border-left: 10px solid #FF0000;
}
.private {
border: 1px dashed #000;
background: #FFFFEF;
}
.note {
height: auto;
padding-bottom: 1px;
margin: 15px 0;
}
.note .title {
font-weight: bold;
text-indent: 10px;
height: 30px;
line-height: 30px;
padding-top: 10px;
}
.note .mark {
background: #A2A2B5;
}
.note ul {
margin-top: 0;
}
.note pre {
margin-left: 15px;
line-height: 13px;
font-size: 13px;
}
.footer {
position:fixed;
bottom:0;
right:0;
text-align: right;
}
</style>
</head>
<body>
<div class='header'>
<img src='data:image/png;base64,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'>
<div>All your files have been encrypted!</div>
</div>
<div class='bold'>All your files have been encrypted due to a security problem with your PC. If you want to restore them, write us to the e-mail <span class='mark'>[email protected]</span></div> <div class='bold'>Write this ID in the title of your message <span class='mark'>FB25EC95-3232</span></div>
<div class='bold'>In case of no answer in 24 hours write us to this e-mail:<span class='mark'>[email protected]</span></div>
<div>
You have to pay for decryption in Bitcoins. The price depends on how fast you write to us. After payment we will send you the tool that will decrypt all your files.
</div>
<div class='note info'>
<div class='title'>Free decryption as guarantee</div>
<ul>Before paying you can send us up to 5 files for free decryption. The total size of files must be less than 4Mb (non archived), and files should not contain valuable information. (databases,backups, large excel sheets, etc.) </ul>
</div>
<div class='note info'>
<div class='title'>How to obtain Bitcoins</div>
<ul>
The easiest way to buy bitcoins is LocalBitcoins site. You have to register, click 'Buy bitcoins', and select the seller by payment method and price.
<br><a href='https://localbitcoins.com/buy_bitcoins'>https://localbitcoins.com/buy_bitcoins</a>
<br> Also you can find other places to buy Bitcoins and beginners guide here:
<br><a href='http://www.coindesk.com/information/how-can-i-buy-bitcoins/'>http://www.coindesk.com/information/how-can-i-buy-bitcoins/</a>
</ul>
</div>
<div class='note alert'>
<div class='title'>Attention!</div>
<ul>
<li>Do not rename encrypted files.</li>
<li>Do not try to decrypt your data using third party software, it may cause permanent data loss.</li>
<li>Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.</li>
</ul>
</div>
</body>
</html>
Emails
class='mark'>[email protected]</span></div>
class='mark'>[email protected]</span></div>
URLs
http://www.w3.org/TR/html4/strict.dtd'>
Signatures
-
Phobos
Phobos ransomware appeared at the beginning of 2019.
-
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
-
Modifies boot configuration data using bcdedit 1 TTPs 4 IoCs
-
Renames multiple (93) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
-
Deletes backup catalog 3 TTPs 2 IoCs
Uses wbadmin.exe to inhibit system recovery.
-
Modifies Windows Firewall 1 TTPs 2 IoCs
-
Drops startup file 1 IoCs
-
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Adds Run key to start application 2 TTPs 2 IoCs
-
Drops desktop.ini file(s) 4 IoCs
-
Drops file in Program Files directory 64 IoCs
-
Interacts with shadow copies 2 TTPs 2 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
-
Suspicious behavior: EnumeratesProcesses 12 IoCs
-
Suspicious use of AdjustPrivilegeToken 44 IoCs
-
Suspicious use of WriteProcessMemory 26 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\wikilab.exe"C:\Users\Admin\AppData\Local\Temp\wikilab.exe"1⤵
- Drops startup file
- Adds Run key to start application
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\wikilab.exe"C:\Users\Admin\AppData\Local\Temp\wikilab.exe"2⤵
-
C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\netsh.exenetsh firewall set opmode mode=disable3⤵
- Modifies Windows Firewall
-
C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete3⤵
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures3⤵
- Modifies boot configuration data using bcdedit
-
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet3⤵
- Deletes backup catalog
-
C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no3⤵
- Modifies boot configuration data using bcdedit
-
C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\info.hta"2⤵
-
C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
-
C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "F:\info.hta"2⤵
-
C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\info.hta"2⤵
-
C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\users\public\desktop\info.hta"2⤵
-
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet1⤵
- Interacts with shadow copies
-
C:\Windows\system32\netsh.exenetsh advfirewall set currentprofile state off1⤵
- Modifies Windows Firewall
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
-
C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵
-
C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
-
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet1⤵
- Interacts with shadow copies
-
C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete1⤵
-
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet1⤵
- Deletes backup catalog
-
C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no1⤵
- Modifies boot configuration data using bcdedit
-
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures1⤵
- Modifies boot configuration data using bcdedit
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\ProPsWW2.cab.id[FB25EC95-3232].[[email protected]].ekingFilesize
347KB
MD5fc5d8333a39fc6d9acdd5a544ecfe153
SHA12ff675fa79fa5590d975273ef28d292d40d58774
SHA2565e3752d59658c42a687517a747bf3a53882a08a038bcb7a2a8289f761e6af2aa
SHA5126cb3a1990c5a26f13253d76a3977335930c742562cfcd59ce9774aa5b9406bf2802f3e26c0fd8369f9b6b50190ee6345f9e07fc3cf303c1c705338c74bf03b69
-
C:\info.htaFilesize
5KB
MD537bfb4ea41a0b506a0c42d7d43cad36d
SHA152cf32b0ea707dc6ef05d0bf75226900b0bc7f23
SHA256cd369cfa47f61a478d4afae9ef89cc911fd8042c0a62c1a635097bc0c4e5bec8
SHA5126247f38e133d7aaf5a8aa8a3ce0a7bd2a48934ff4665ae2a75500ba400ba649de077ebad9367b25a2e73d2c6d01ca6ae1769b073eff4ce4e85aaa62d6c85ca6a