c09c691d40d8b935de4b60c92e1d4fc85f409fb546fd4a5e5b5483ae150fbf20

General

Target

revil-fixed.exe
Size

126KB
MD5

329b8aaea517a511908683b56446db99
SHA1

9abe20a9c460a3e530cb96658541c6d25700a529
SHA256

c09c691d40d8b935de4b60c92e1d4fc85f409fb546fd4a5e5b5483ae150fbf20
SHA512

172d290abe8fef35e8bea43319dc68092c61389257c73e94fcde68f67f97022c1bbda1fe50cd35775bda6e2473af1bad0e5cdb2ff7060e8365bbbe4765a3b3fa
SSDEEP

1536:oxOUyl20w8bVZQ40iMSO1fY+iUyQs2r8t5p1ySotICS4A6QdZls8XzUXiWr4X5Fg:oMhQNDEtb3A2ZHjUyWr4X5FTDUA

Score

10^/10

defense_evasion discovery persistence privilege_escalation ransomware

Malware Config

Extracted

Path

C:\Program Files (x86)\wt6c1-readme.txt

Ransom Note

---=== Welcome. Again. ===--- [-] Whats HapPen? [-] Your files are encrypted, and currently unavailable. You can check it: all files on your system has extension wt6c1. By the way, everything is possible to recover (restore), but you need to follow our instructions. Otherwise, you cant return your data (NEVER). [+] What guarantees? [+] 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 not cooperate with us. Its not in our interests. To check the ability of returning files, You should go to our website. There you can decrypt one file for free. That is our guarantee. If you will not cooperate with our service - for us, its does not matter. But you will lose your time and data, cause just we have the private key. In practice - time is much more valuable than money. [+] How to get access on website? [+] You have two ways: 1) [Recommended] Using a TOR browser! a) Download and install TOR browser from this site: https://torproject.org/ b) Open our website: http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/C12660539403CA53 2) If TOR blocked in your country, try to use VPN! But you can use our secondary website. For this: a) Open your any browser (Chrome, Firefox, Opera, IE, Edge) b) Open our secondary website: http://decoder.re/C12660539403CA53 Warning: secondary website can be blocked, thats why first variant much better and more available. When you open our website, put the following data in the input form: Key: WiMVuyGV+IxZ1OahWywq+bipKRHxIJ7DLyOrMayISI0alp+RUJze/jDHGMdGLev6 +e9fU0KNlGxfUJODMMoLSh4xoI7ZQ1PmN3sqkMBzrF2cumNl+k0vUzvmf5cELhzV 3PBg2Udj//rZGOYbKjJh9d45X0A0nZeXcrP4tE2VbbDouZgofBDRtVOPxShsaPmc tnPBeMcuhsqDGhIVVO+NTTrMLypmkRSM5LlJXMEXGjMxea0f74cJMSpFsE3NuTXv B1CqGr5RZq2M0vHuArZzfpZNGkyTalpnnnZkAwc39ZfxJc8UwWhnL/fkX1F/39z1 ZULz7bklqvyvvhJs8xam9jibTMAWx/5KBbkeEUn/TK65c2HRG7cz+IoIUh4Vr760 bCuywDl9WSOLHGrkx34QVOC7jLx8XXMqqNeqMSMPB5gK4xLStsiW/MJA4LkEWYCc MxK/IkRWw0cGJzyow/dUPpiTwtVqrT7RAx6rxE8j7Psi5Xjbg8PBjr/fiydxo19X KorfTwMM1i8suEWaO1/Xb+XbrS8c33ooamzfpzWZJpANxRZM7fGSutKI/ZeLsDiu L7h86WAxL1k7Wl/78Ch+IC65nUWTz5/DzPe/6tP0V+qd0cPK2FpLfwOAWRE8/RYS 9HizgvyPCXIx85YgWQ+0EtuXYMkgyLrbfaVvZxpm51cyjxhYfjVaqQxKilHqO5PU rENwH/2BAsWBzEmSJm+0mB1T+1mqiRhh/+7aNcgtwpULy66k4cpxsfyXfDcKK2Nn ZirCGlfvZJjKpyZyRBrOR37hoyNzT/NwP51uHg5WF5JfSsTeAqCb+5KnFU45lzv4 4YPP3mZBG+icVDF0SIJ8J6C+MRzeg4Zj4DkBUkR5k3Uxu6lRxduxiDKgqXCugI7h E4LJpOhPewcJ+NieIIRBuCaqebnuHS3w9Vx0I9S92C4mXofgkV8b6ZmQkk+VvbJo DajFAMPFic3eO3QUU6OUa0LI2rktmvDG/x/HSddHv2+bo3vfPeSf1GT5dNLoB9vB 7Ptc+q6Pl3pNik+NMmZncIHyNbeUuq9foqiP9les9OQ8CnDcKASdZnSuWlrNbHkf Ds4qgSY3WmaNCAFVslq31ins35FZ7azjY4GckH0uWoW2ExPqnqa/dMB8ABZCD6al RNaIkYlYyFgYqAp0u6S5/FqaZLMKNsaStOIiSUeOQkDAf0mZv9VgjFHY2kmj4XRs VL5X5HLipA0nT/gD5bRoVGr2MeteCCUiW3zGk6ylnKw3CpyQ9iN7PBRDwI10xdjy glEWGDFqKGRazl82qY4Yz7boh/W8otKg29pOcz7vpUJuwrMyxMMNDsw2I+O76haz LygpDwM/WRkmgVHyp0bwVs7bbCYE7kvFoqA= ----------------------------------------------------------------------------------------- !!! DANGER !!! DON'T try to change files by yourself, DON'T use any third party software for restoring your data or antivirus solutions - its may entail damage of the private key and, as result, The Loss all data. !!! !!! !!! ONE MORE TIME: Its in your interests to get your files back. From our side, we (the best specialists) make everything for restoring, but please should not interfere. !!! !!! !!!

URLs

http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/C12660539403CA53

http://decoder.re/C12660539403CA53

Signatures

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
3376	netsh.exe

Enumerates connected drives 3 TTPs 25 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\Q:	revil-fixed.exe
File opened (read-only)	\??\G:	revil-fixed.exe
File opened (read-only)	\??\H:	revil-fixed.exe
File opened (read-only)	\??\M:	revil-fixed.exe
File opened (read-only)	\??\P:	revil-fixed.exe
File opened (read-only)	\??\S:	revil-fixed.exe
File opened (read-only)	\??\X:	revil-fixed.exe
File opened (read-only)	\??\Y:	revil-fixed.exe
File opened (read-only)	\??\B:	revil-fixed.exe
File opened (read-only)	\??\J:	revil-fixed.exe
File opened (read-only)	\??\R:	revil-fixed.exe
File opened (read-only)	\??\T:	revil-fixed.exe
File opened (read-only)	\??\V:	revil-fixed.exe
File opened (read-only)	\??\Z:	revil-fixed.exe
File opened (read-only)	\??\F:	revil-fixed.exe
File opened (read-only)	\??\D:	revil-fixed.exe
File opened (read-only)	\??\A:	revil-fixed.exe
File opened (read-only)	\??\I:	revil-fixed.exe
File opened (read-only)	\??\N:	revil-fixed.exe
File opened (read-only)	\??\O:	revil-fixed.exe
File opened (read-only)	\??\U:	revil-fixed.exe
File opened (read-only)	\??\W:	revil-fixed.exe
File opened (read-only)	\??\E:	revil-fixed.exe
File opened (read-only)	\??\K:	revil-fixed.exe
File opened (read-only)	\??\L:	revil-fixed.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-446031748-3036493239-2009529691-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\153rrt7639.bmp"	revil-fixed.exe

Drops file in Program Files directory 26 IoCs

description	ioc	Process
File created	\??\c:\program files (x86)\wt6c1-readme.txt	revil-fixed.exe
File opened for modification	\??\c:\program files\BlockOptimize.odt	revil-fixed.exe
File opened for modification	\??\c:\program files\chrome_installer.log	revil-fixed.exe
File opened for modification	\??\c:\program files\DenySearch.ttf	revil-fixed.exe
File opened for modification	\??\c:\program files\DenyStart.kix	revil-fixed.exe
File opened for modification	\??\c:\program files\EnterDebug.wmf	revil-fixed.exe
File opened for modification	\??\c:\program files\MoveImport.vbs	revil-fixed.exe
File opened for modification	\??\c:\program files\RestartResume.ADT	revil-fixed.exe
File created	\??\c:\program files\tmp	revil-fixed.exe
File opened for modification	\??\c:\program files\CopyRegister.kix	revil-fixed.exe
File opened for modification	\??\c:\program files\LockUnprotect.3g2	revil-fixed.exe
File opened for modification	\??\c:\program files\RequestPop.xltm	revil-fixed.exe
File opened for modification	\??\c:\program files\ResumeUnlock.TS	revil-fixed.exe
File opened for modification	\??\c:\program files\SearchMove.midi	revil-fixed.exe
File opened for modification	\??\c:\program files\ShowCompare.wvx	revil-fixed.exe
File opened for modification	\??\c:\program files\WaitDisconnect.asp	revil-fixed.exe
File created	\??\c:\program files\wt6c1-readme.txt	revil-fixed.exe
File opened for modification	\??\c:\program files\ExportUnlock.xla	revil-fixed.exe
File opened for modification	\??\c:\program files\msedge_installer.log	revil-fixed.exe
File created	\??\c:\program files (x86)\tmp	revil-fixed.exe
File opened for modification	\??\c:\program files\BackupGet.vsd	revil-fixed.exe
File opened for modification	\??\c:\program files\ClearPublish.ttf	revil-fixed.exe
File opened for modification	\??\c:\program files\NewMerge.MTS	revil-fixed.exe
File opened for modification	\??\c:\program files\RequestUpdate.temp	revil-fixed.exe
File opened for modification	\??\c:\program files\ShowTrace.mht	revil-fixed.exe
File opened for modification	\??\c:\program files\UseOptimize.jpe	revil-fixed.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	revil-fixed.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
6004	revil-fixed.exe
6004	revil-fixed.exe
6004	revil-fixed.exe
6004	revil-fixed.exe
6004	revil-fixed.exe
6004	revil-fixed.exe
6004	revil-fixed.exe
6004	revil-fixed.exe
6004	revil-fixed.exe
6004	revil-fixed.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	6004	revil-fixed.exe
Token: SeTakeOwnershipPrivilege	6004	revil-fixed.exe
Token: SeBackupPrivilege	4856	vssvc.exe
Token: SeRestorePrivilege	4856	vssvc.exe
Token: SeAuditPrivilege	4856	vssvc.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 6004 wrote to memory of 3376	6004	revil-fixed.exe	94
PID 6004 wrote to memory of 3376	6004	revil-fixed.exe	94
PID 6004 wrote to memory of 3376	6004	revil-fixed.exe	94

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\revil-fixed.exe
"C:\Users\Admin\AppData\Local\Temp\revil-fixed.exe"
1⤵
- Enumerates connected drives
- Sets desktop wallpaper using registry
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:6004
- C:\Windows\SysWOW64\netsh.exe
  netsh advfirewall firewall set rule group="Network Discovery" new enable=Yes
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:3376

C:\Windows\system32\wbem\unsecapp.exe
C:\Windows\system32\wbem\unsecapp.exe -Embedding
1⤵
PID:4756

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4856

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

1

T1491

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Downloads

C:\Program Files (x86)\wt6c1-readme.txt

Filesize
6KB

MD5
a9d9aadf5097773f0576f72febdd2d2d

SHA1
c4cf4ad69c48c6cdd5058a3b1fd6c1af8d469b37

SHA256
c9bfb5c0034f5bfc0d9d6b6f1db27c20e69a88ae05602e4f429261a857fd2667

SHA512
4192c7b50912fc862316b3d9018ff00a18218bedc1909b67f02f9d73d528d8ce9e6b8e7b7fa498739f7f71acae566820464556c94d8c8e833db2483e230f0056

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads