Resubmissions
12-11-2021 18:04
211112-wnzb8aahhm 1019-11-2020 10:08
201119-rhwlt38jrx 1018-11-2020 17:26
201118-htd4fq29va 10Analysis
-
max time kernel
1801s -
max time network
1820s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
19-11-2020 10:08
General
-
Target
___ _ _____ __ ___/전산 및 비전산자료 보존 요청서/전산 및 비전산자료 보존 요.exe
Score
10/10
Malware Config
Extracted
Path
C:\readme-warning.txt
Family
makop
Ransom Note
::: Greetings :::
Little FAQ:
.1.
Q: Whats Happen?
A: Your files have been encrypted and now have the "makop" extension. The file structure was not damaged, we did everything possible so that this could not happen.
.2.
Q: How to recover files?
A: If you wish to decrypt your files you will need to pay in bitcoins.
.3.
Q: What about guarantees?
A: Its just a business. We absolutely do not care about you and your deals, except getting benefits. If we do not do our work and liabilities - nobody will cooperate with us. Its not in our interests.
To check the ability of returning files, you can send to us any 2 files with SIMPLE extensions(jpg,xls,doc, etc... not databases!) and low sizes(max 1 mb), we will decrypt them and send back to you. That is our guarantee.
.4.
Q: How to contact with you?
A: You can write us to our mailbox: [email protected] or [email protected]
.5.
Q: How will the decryption process proceed after payment?
A: After payment we will send to you our scanner-decoder program and detailed instructions for use. With this program you will be able to decrypt all your encrypted files.
.6.
Q: If I don�t want to pay bad people like you?
A: If you will not cooperate with our service - for us, its does not matter. But you will lose your time and data, cause only we have the private key. In practice - time is much more valuable than money.
:::BEWARE:::
DON'T try to change encrypted files by yourself!
If you will try to use any third party software for restoring your data or antivirus solutions - please make a backup for all encrypted files!
Any changes in encrypted files may entail damage of the private key and, as result, the loss all data.
Signatures
-
Makop
Ransomware family discovered by @VK_Intel in early 2020.
-
Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
-
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
-
Deletes backup catalog 3 TTPs 1 IoCs
Uses wbadmin.exe to inhibit system recovery.
-
Modifies Installed Components in the registry 2 TTPs
-
Modifies extensions of user files 2 IoCs
Ransomware generally changes the extension on encrypted files.
-
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 1 IoCs
-
Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
-
Legitimate hosting services abused for malware hosting/C2 1 TTPs
-
Drops file in Program Files directory 64 IoCs
-
Program crash 1 IoCs
-
Checks SCSI registry key(s) 3 TTPs 16 IoCs
SCSI information is often read in order to detect sandboxing environments.
-
Enumerates system info in registry 2 TTPs 2 IoCs
-
Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
-
Modifies registry class 33 IoCs
-
Suspicious behavior: EnumeratesProcesses 17 IoCs
-
Suspicious use of AdjustPrivilegeToken 64 IoCs
-
Suspicious use of FindShellTrayWindow 44 IoCs
-
Suspicious use of SendNotifyMessage 23 IoCs
-
Suspicious use of SetWindowsHookEx 3 IoCs
-
Suspicious use of WriteProcessMemory 15 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\___ _ _____ __ ___\전산 및 비전산자료 보존 요청서\전산 및 비전산자료 보존 요.exe"C:\Users\Admin\AppData\Local\Temp\___ _ _____ __ ___\전산 및 비전산자료 보존 요청서\전산 및 비전산자료 보존 요.exe"1⤵
- Modifies extensions of user files
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\___ _ _____ __ ___\전산 및 비전산자료 보존 요청서\전산 및 비전산자료 보존 요.exe"C:\Users\Admin\AppData\Local\Temp\___ _ _____ __ ___\전산 및 비전산자료 보존 요청서\전산 및 비전산자료 보존 요.exe" n14042⤵
-
C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet3⤵
- Interacts with shadow copies
-
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet3⤵
- Deletes backup catalog
-
C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete3⤵
- Suspicious use of AdjustPrivilegeToken
-
\??\c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k netsvcs -s seclogon1⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵
-
C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
-
C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 3024 -s 24521⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\explorer.exeexplorer.exe1⤵
- Enumerates connected drives
- Checks SCSI registry key(s)
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
-
C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe"C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe" -ServerName:App.AppXtk181tbxbce2qsex02s8tw7hfxa9xb3t.mca1⤵
- Suspicious use of SetWindowsHookEx
-
C:\Windows\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy\SearchUI.exe"C:\Windows\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy\SearchUI.exe" -ServerName:CortanaUI.AppXa50dqqa5gqv4a428c9y1jjw7m3btvepj.mca1⤵
- Enumerates system info in registry
- Modifies registry class
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Filesize
4KB
-
Filesize
4KB
-
Filesize
4KB
-
-
Filesize
8KB
-
-
Filesize
4KB
-
Filesize
4KB
-
Filesize
4KB
-
Filesize
4KB
-
Filesize
4KB
-
Filesize
4KB
