9b11711efed24b3c6723521a7d7eb4a52e4914db7420e278aa36e727459d59dd

General

Target

revil_kasaya.exe
Size

136KB
MD5

94d087166651c0020a9e6cc2fdacdc0c
SHA1

99be22569ba9b1e49d3fd36f65faa6795672fcc0
SHA256

9b11711efed24b3c6723521a7d7eb4a52e4914db7420e278aa36e727459d59dd
SHA512

0f5a413e57e4cedf0a8df3b33cda3c2c0732ded58c367633e8677bf88786eb786b85c97420fda150fecb68db74dc00f77064c3ea77d00f53904413c9ea3a93ba

Score

10^/10

evasion ransomware

Malware Config

Extracted

Path

C:\p2jj8p-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 p2jj8p. 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/38D1830A820632A8 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/38D1830A820632A8 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: 9kbZRD9fUOIzgbB6ITsUG474VrcdoyWPXel8unFAp56YtZ41iDSMruAYQhz/MeKe M+iBRrT8U8AnGGkkSQk34R+TXxuQQS/jsnkNaO+ZZF24d5mIm1zis0scU6w6ngtr PRmfUFACyylmoza+4VpHAfEtWIYBVRGl8n/+P/ujd7vu6VvSVgLXQeVCdrpxSofr drQP/4E6wFBFiUQ5h08Vj/xiRarTEtk/0C+jI/tkfUW29ibF4cUMz4TA26h1iF2f V4b5sS103aNuyE944WVL+8a4P87t/CLlN2TqmD+CdzpuPXK4rP5nm1SCftSuRDzb PWikjGEZHUrJ4trICiE/esoOcB7DXTLyANMYvFtAW4BKFb+5tqwKVSKjmpK4+rKU fdDmea5Sh48F4H7H7By42DE0X1/T6exDHK8vHjPDTczyVlgQd5poVMZ0JjIAiA6d Xxbtl+qfoCyFD+Lwfz6zRmn2uJqRsBsX6fJiVwRpFyZ/Ra6jHA8uv3F85QfaA85H 3hCPZOzUk9uupzLln4Y9wHh4kGQ+amiZFiNnzA1j7rSnBzPLguos1c4ls+1SP7ca LJi29ekofhYOjxTK9j/RHLqttpKxuUNPnmJWrFjKwTpQnyg99D9Hfb5qLmfrftOF S616JZX4+oZocz1Bh+Z0FyqjOrCgSPMGaclL9bEubA5bbFlkoaV+Ccp/6QG6Chu7 1coJF6gS6t54RbenuqWx+iXoi6n0coI5W8zVgdmhA4U5Ua4QlEHJ63ZzyO2IL4eo ASr8c6/6tcmt4ByPXyttowImSYAR0iBLoXLEYSH28vVQZB0w4w38VXhGMMhVv4rT BQy92G4eUOXgg8bC7XUYLEI6ITjtV+5wXUMtshLDrydQ3X5cJP+efX1WG6Od1Xqb 4F2nkihlnFhWT7cZ7A/tz9c6e+YnvXVP6zXpPzc22Km88uV7/ivc2u+2UTgvP8tv obLEmAnBzuAcFu2DxRa22TVafG9hQd8x1VuDb2TN9iP7rc3wurXUlzN4Bi/wrQLs uNOIIZzYzUFW4Wz3wBF6bB4yOqN9FvrS/yMkQrnsTklEAGbnrcKwvjdkCQFn/PlC 8PC9GgbE8+5aqUF7yNGEVWKG8StQLfVPy1A3Tgu/T68Xsw4BOiC3KpyB46UJs9OP Lr1dgfZlJX8SdAOX3UVInIxOg+yO24wcHz8wwbot1OPGiVx11GcONfYi8w+0nPZ/ OjCQVkJDvHYCWsf+FjrDj6OQYtflt9Pm6X/Xio+CdTDFPKdJnf35o5WXg+ssB3ig P7pFfWU4 ----------------------------------------------------------------------------------------- !!! 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/38D1830A820632A8

http://decoder.re/38D1830A820632A8

Signatures

Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

Modifies extensions of user files 2 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

revil_kasaya.exe

description	ioc	process
File renamed	C:\Users\Admin\Pictures\SelectExport.crw => \??\c:\users\admin\pictures\SelectExport.crw.p2jj8p	revil_kasaya.exe
File renamed	C:\Users\Admin\Pictures\SkipStop.raw => \??\c:\users\admin\pictures\SkipStop.raw.p2jj8p	revil_kasaya.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

Processes:

revil_kasaya.exe

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

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

Processes:

revil_kasaya.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\fg1t1moy34.bmp"	revil_kasaya.exe

Drops file in Program Files directory 23 IoCs

Processes:

revil_kasaya.exe

description	ioc	process
File opened for modification	\??\c:\program files\ExportClear.emz	revil_kasaya.exe
File opened for modification	\??\c:\program files\MergeSync.csv	revil_kasaya.exe
File opened for modification	\??\c:\program files\SwitchReceive.mov	revil_kasaya.exe
File opened for modification	\??\c:\program files\TestUse.avi	revil_kasaya.exe
File created	\??\c:\program files (x86)\tmp	revil_kasaya.exe
File opened for modification	\??\c:\program files\ExportSend.bmp	revil_kasaya.exe
File opened for modification	\??\c:\program files\JoinDisconnect.fon	revil_kasaya.exe
File opened for modification	\??\c:\program files\ReceiveConvertTo.contact	revil_kasaya.exe
File opened for modification	\??\c:\program files\ReceiveDebug.rtf	revil_kasaya.exe
File opened for modification	\??\c:\program files\RepairComplete.mp3	revil_kasaya.exe
File opened for modification	\??\c:\program files\ExportPing.3gp2	revil_kasaya.exe
File created	\??\c:\program files\p2jj8p-readme.txt	revil_kasaya.exe
File opened for modification	\??\c:\program files\BlockDebug.AAC	revil_kasaya.exe
File opened for modification	\??\c:\program files\ExportSkip.rtf	revil_kasaya.exe
File opened for modification	\??\c:\program files\HideExpand.mp2v	revil_kasaya.exe
File opened for modification	\??\c:\program files\RenameConvertFrom.DVR	revil_kasaya.exe
File opened for modification	\??\c:\program files\UnregisterExit.odt	revil_kasaya.exe
File created	\??\c:\program files\tmp	revil_kasaya.exe
File opened for modification	\??\c:\program files\DebugTest.wvx	revil_kasaya.exe
File opened for modification	\??\c:\program files\EnableOptimize.odt	revil_kasaya.exe
File opened for modification	\??\c:\program files\MeasureUnregister.pcx	revil_kasaya.exe
File opened for modification	\??\c:\program files\TestSearch.rm	revil_kasaya.exe
File created	\??\c:\program files (x86)\p2jj8p-readme.txt	revil_kasaya.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes:

revil_kasaya.exe

pid	process
776	revil_kasaya.exe
776	revil_kasaya.exe
776	revil_kasaya.exe
776	revil_kasaya.exe
776	revil_kasaya.exe
776	revil_kasaya.exe
776	revil_kasaya.exe
776	revil_kasaya.exe
776	revil_kasaya.exe
776	revil_kasaya.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

revil_kasaya.exevssvc.exe

description	pid	process
Token: SeDebugPrivilege	776	revil_kasaya.exe
Token: SeTakeOwnershipPrivilege	776	revil_kasaya.exe
Token: SeBackupPrivilege	3108	vssvc.exe
Token: SeRestorePrivilege	3108	vssvc.exe
Token: SeAuditPrivilege	3108	vssvc.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

revil_kasaya.exe

description	pid	process	target process
PID 776 wrote to memory of 204	776	revil_kasaya.exe	netsh.exe
PID 776 wrote to memory of 204	776	revil_kasaya.exe	netsh.exe
PID 776 wrote to memory of 204	776	revil_kasaya.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\revil_kasaya.exe
"C:\Users\Admin\AppData\Local\Temp\revil_kasaya.exe"
1⤵
- Modifies extensions of user files
- Enumerates connected drives
- Sets desktop wallpaper using registry
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:776
- C:\Windows\SysWOW64\netsh.exe
  netsh advfirewall firewall set rule group="Network Discovery" new enable=Yes
  2⤵
  PID:204