d55f983c994caa160ec63a59f6b4250fe67fb3e8c43a388aec60a4a6978e9f1e

General

Target

revil.exe
Size

890KB
MD5

561cffbaba71a6e8cc1cdceda990ead4
SHA1

5162f14d75e96edb914d1756349d6e11583db0b0
SHA256

d55f983c994caa160ec63a59f6b4250fe67fb3e8c43a388aec60a4a6978e9f1e
SHA512

09149b9825db2c9e6d2ec6665abc64b0b7aaafaa47c921c5bf0062cd7bedd1fc64cf54646a098f45fc4b930f5fbecee586fe839950c9135f64ea722b00baa50e

Score

10^/10

evasion ransomware

Malware Config

Extracted

Path

C:\32t36728x-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 32t36728x. 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/7083B8410E4779EC 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/7083B8410E4779EC 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: VHtcjzNG03l1OPdIlrWlwOYCeMi0IGbl9aCGI31dHUbBODtZuKPEV+fqFy6Qwqbt f6+THyHGTtj0TkO6aXtDAsMx1ryd5vmy6A1tgFUoJysB7zDuSZB2MamSyDn7gC8f 3VzHYPrVdlWvlvsNqnGE4pRJXw78B2A2swNnllF44C0AAXcqSm7gmhilM6zmZVdO b9JqwRJecTvPVkufLeDlUx3GAI8q20fOVezwhdjsjSjVnrmO4UlJbJPgiG8BfLw5 i+6BH1pocLT56uJj4NidPptnEoFs8N9UcBduBfSFaWeNyYGYT3PCekC3t0MoDXr6 deIxSYXQp6b7KmFNwSOLMrTTBvl+hooMHmRJ6bQAwzllt8JlXuBHpav5Ww97XPfO geNiawNzB7KYgbaDCW2S1EVyd9N0AcnkCcqebqkBoHZaJH/0kcvE2mZBM1XtlbGc pgSoICQbbDKbMMsae1JH1hEQN9xveVLjwoKEypeC3Ir19hMrvDPAEvC4g6poLhjn ZsUv/DLfAbETu7Uk174UBeB3VZPD3S4NutQQL55YDd7+5KNrgxgijpuwmJrP399U HhPeiK++1+fgIfNonRAdwcuIBZ57dwPH8zZbdPNkfbnNWOvdBEhVDYnXBe7iopj1 S9hFEQzcGWyiQYS/zXuW/+UMdoBlb8oEg10JMlHKOetE9WJgngpyVRNscKvGZHBf 85YSfiD3V6E/8YMmO+dI4SYaQLAWQHH/U/Tf2H+G7XZ/u6imu7PSM56IIavtSmnK jTeAJc8N6sw6AK9wnQJw2BqcUY8oxJOAhUb3J2OOdo9Kyl3pD4iy5nPiaCt+o5/m aCm5V5eTMtHuG6ijN+xSIoTRu1Of0m1Xco3QTgZB9+UdZtMBIRRgBkPq2/OKnmFB Fioo4xCBVHRU4j6zmd4VLatmtq5KKUdpPezk5/lE3nJOvZzwpn1XRAf6aHsEXO5f cDHPymqy5695xiqtJ48gZSkQnOZ78GAkgOLqAoFM4a7HOZFNkPIXnjsBd++wlItC IY+CSAC2NxLgrsUnWjy4TNslFIZX1MWBlw43Q+sTtJGHC4ikam8u1F6B9pVswScb le8UrzoHIoIs+KUplX8wDeq2B+oIO9fRfW7g11rMvEK5hoLFb2/h1gPDmu8NHcie X6oaPDuvUpxhTH60Yn8QyNnUxrzdybgFYkbH0iu3ZIZKrVnD9DreNz4A8AmX+HJF /BnRCDCpp12XQ/BM0+Pi8ktKP6JVzwUmOwBv2QBzrGYuqVr2/kaoFdgiv0Cm3qo2 d3nZjvQhKHUfsVbi ----------------------------------------------------------------------------------------- !!! 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/7083B8410E4779EC

http://decoder.re/7083B8410E4779EC

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2692	MsMpEng.exe

Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

Modifies extensions of user files 16 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File renamed	C:\Users\Admin\Pictures\OpenResume.png => \??\c:\users\admin\pictures\OpenResume.png.32t36728x	MsMpEng.exe
File renamed	C:\Users\Admin\Pictures\RegisterSplit.png => \??\c:\users\admin\pictures\RegisterSplit.png.32t36728x	MsMpEng.exe
File renamed	C:\Users\Admin\Pictures\DisableEnable.tiff => \??\c:\users\admin\pictures\DisableEnable.tiff.32t36728x	MsMpEng.exe
File opened for modification	\??\c:\users\admin\pictures\EditSet.tiff	MsMpEng.exe
File opened for modification	\??\c:\users\admin\pictures\EnterComplete.tiff	MsMpEng.exe
File renamed	C:\Users\Admin\Pictures\EnterComplete.tiff => \??\c:\users\admin\pictures\EnterComplete.tiff.32t36728x	MsMpEng.exe
File opened for modification	\??\c:\users\admin\pictures\OpenProtect.tiff	MsMpEng.exe
File renamed	C:\Users\Admin\Pictures\AssertStop.raw => \??\c:\users\admin\pictures\AssertStop.raw.32t36728x	MsMpEng.exe
File renamed	C:\Users\Admin\Pictures\EditSet.tiff => \??\c:\users\admin\pictures\EditSet.tiff.32t36728x	MsMpEng.exe
File renamed	C:\Users\Admin\Pictures\InstallCompress.png => \??\c:\users\admin\pictures\InstallCompress.png.32t36728x	MsMpEng.exe
File renamed	C:\Users\Admin\Pictures\UseDebug.crw => \??\c:\users\admin\pictures\UseDebug.crw.32t36728x	MsMpEng.exe
File opened for modification	\??\c:\users\admin\pictures\WatchUninstall.tiff	MsMpEng.exe
File opened for modification	\??\c:\users\admin\pictures\DisableEnable.tiff	MsMpEng.exe
File renamed	C:\Users\Admin\Pictures\OpenProtect.tiff => \??\c:\users\admin\pictures\OpenProtect.tiff.32t36728x	MsMpEng.exe
File renamed	C:\Users\Admin\Pictures\WatchUninstall.tiff => \??\c:\users\admin\pictures\WatchUninstall.tiff.32t36728x	MsMpEng.exe
File renamed	C:\Users\Admin\Pictures\GetSubmit.crw => \??\c:\users\admin\pictures\GetSubmit.crw.32t36728x	MsMpEng.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)	\??\I:	MsMpEng.exe
File opened (read-only)	\??\N:	MsMpEng.exe
File opened (read-only)	\??\P:	MsMpEng.exe
File opened (read-only)	\??\S:	MsMpEng.exe
File opened (read-only)	\??\Y:	MsMpEng.exe
File opened (read-only)	\??\J:	MsMpEng.exe
File opened (read-only)	\??\M:	MsMpEng.exe
File opened (read-only)	\??\Q:	MsMpEng.exe
File opened (read-only)	\??\W:	MsMpEng.exe
File opened (read-only)	\??\O:	MsMpEng.exe
File opened (read-only)	\??\U:	MsMpEng.exe
File opened (read-only)	\??\X:	MsMpEng.exe
File opened (read-only)	\??\A:	MsMpEng.exe
File opened (read-only)	\??\B:	MsMpEng.exe
File opened (read-only)	\??\E:	MsMpEng.exe
File opened (read-only)	\??\G:	MsMpEng.exe
File opened (read-only)	\??\H:	MsMpEng.exe
File opened (read-only)	\??\D:	MsMpEng.exe
File opened (read-only)	\??\V:	MsMpEng.exe
File opened (read-only)	\??\Z:	MsMpEng.exe
File opened (read-only)	\??\F:	MsMpEng.exe
File opened (read-only)	\??\K:	MsMpEng.exe
File opened (read-only)	\??\L:	MsMpEng.exe
File opened (read-only)	\??\R:	MsMpEng.exe
File opened (read-only)	\??\T:	MsMpEng.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-1-5-21-1594587808-2047097707-2163810515-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\nlp7lsrm7k.bmp"	MsMpEng.exe

Drops file in Program Files directory 22 IoCs

description	ioc	Process
File created	\??\c:\program files (x86)\32t36728x-readme.txt	MsMpEng.exe
File opened for modification	\??\c:\program files\BackupUnblock.ttc	MsMpEng.exe
File opened for modification	\??\c:\program files\ConnectInitialize.jfif	MsMpEng.exe
File opened for modification	\??\c:\program files\PushBackup.3g2	MsMpEng.exe
File opened for modification	\??\c:\program files\UnlockBackup.xht	MsMpEng.exe
File opened for modification	\??\c:\program files\UseExpand.cr2	MsMpEng.exe
File created	\??\c:\program files\32t36728x-readme.txt	MsMpEng.exe
File created	\??\c:\program files (x86)\tmp	MsMpEng.exe
File opened for modification	\??\c:\program files\FormatTest.DVR-MS	MsMpEng.exe
File opened for modification	\??\c:\program files\GrantMove.jfif	MsMpEng.exe
File opened for modification	\??\c:\program files\GroupAssert.iso	MsMpEng.exe
File opened for modification	\??\c:\program files\MountWrite.emf	MsMpEng.exe
File opened for modification	\??\c:\program files\ResumeStop.dib	MsMpEng.exe
File created	\??\c:\program files\tmp	MsMpEng.exe
File opened for modification	\??\c:\program files\DisableCopy.3gp2	MsMpEng.exe
File opened for modification	\??\c:\program files\SendRemove.cfg	MsMpEng.exe
File opened for modification	\??\c:\program files\ConnectStep.xlt	MsMpEng.exe
File opened for modification	\??\c:\program files\RegisterSearch.7z	MsMpEng.exe
File opened for modification	\??\c:\program files\SwitchSplit.wmv	MsMpEng.exe
File opened for modification	\??\c:\program files\UnlockGroup.mov	MsMpEng.exe
File opened for modification	\??\c:\program files\DismountSet.dib	MsMpEng.exe
File opened for modification	\??\c:\program files\SearchStart.001	MsMpEng.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\mpsvc.dll	revil.exe
File created	C:\Windows\MsMpEng.exe	revil.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

pid	Process
2692	MsMpEng.exe
2692	MsMpEng.exe
2692	MsMpEng.exe
2692	MsMpEng.exe
2692	MsMpEng.exe
2692	MsMpEng.exe
2692	MsMpEng.exe
2692	MsMpEng.exe
2692	MsMpEng.exe
2692	MsMpEng.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2692	MsMpEng.exe
Token: SeTakeOwnershipPrivilege	2692	MsMpEng.exe
Token: SeBackupPrivilege	3308	vssvc.exe
Token: SeRestorePrivilege	3308	vssvc.exe
Token: SeAuditPrivilege	3308	vssvc.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 528 wrote to memory of 2692	528	revil.exe	74
PID 528 wrote to memory of 2692	528	revil.exe	74
PID 528 wrote to memory of 2692	528	revil.exe	74
PID 2692 wrote to memory of 204	2692	MsMpEng.exe	78
PID 2692 wrote to memory of 204	2692	MsMpEng.exe	78
PID 2692 wrote to memory of 204	2692	MsMpEng.exe	78

C:\Users\Admin\AppData\Local\Temp\revil.exe
"C:\Users\Admin\AppData\Local\Temp\revil.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:528
- C:\Windows\MsMpEng.exe
  "C:\Windows\MsMpEng.exe"
  2⤵
  - Executes dropped EXE
  - 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:2692
- - C:\Windows\SysWOW64\netsh.exe
    netsh advfirewall firewall set rule group="Network Discovery" new enable=Yes
    3⤵
    PID:204