rook | 925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb

General

Target

925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe
Size

345KB
MD5

5d40a2c6b936453af9895f17a78eee4f
SHA1

8df94028ed5b475b401489211d6757bdf545fbd4
SHA256

925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb
SHA512

5a803d4dca63df0f92a142480fa5fc64e7569fe081f4a7caec9c9bedb435886ed712cb483b12126c3f1733707cd569f3a1c7cbeffa20aa1de547dda2426092d9

Score

10^/10

rook ransomware

Malware Config

Extracted

Path

C:\HowToRestoreYourFiles.txt

Family

rook

Ransom Note

-----------Welcome. Again. -------------------- [+]Whats Happen?[+] Your files are encrypted,and currently unavailable. You can check it: all files on you computer has expansion robet. 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 file capacity, please send 3 files not larger than 1M to us, and we will prove that we are capable of restoring. 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 practise - time is much more valuable than money. If we find that a security vendor or law enforcement agency pretends to be you to negotiate with us, we will directly destroy the private key and no longer provide you with decryption services. You have 3 days to contact us for negotiation. Within 3 days, we will provide a 50% discount. If the discount service is not provided for more than 3 days, the files will be leaked to our onion network. Every more than 3 days will increase the number of leaked files. Please use the company email to contact us, otherwise we will not reply. [+] 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:gamol6n6p2p4c3ad7gxmx3ur7wwdwlywebo2azv3vv5qlmjmole2zbyd.onion 2) Our mail box: a)[email protected] b)[email protected] c)If the mailbox fails or is taken over, please open Onion Network to check the new mailbox ------------------------------------------------------------------------------------------------ !!!DANGER!!! DONT try to change files by yourself, DONT use any third party software for restoring your data or antivirus solutions - its may entail damge of the private key and, as result, The Loss all data. !!!!!!! AGAIN: Its in your interests to get your files back. From our side, we (the best specialists) make everything for restoring, please should not interfere. !!!!!!! ONE MORE TIME: Security vendors and law enforcement agencies, please be aware that attacks on us will make us even stronger. !!!!!!!

Emails

a)[email protected]

b)[email protected]

Signatures

Rook
Rook is a ransomware which copies from NightSky ransomware.
ransomware rook
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Modifies extensions of user files 9 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe

description	ioc	process
File renamed	C:\Users\Admin\Pictures\CloseDebug.tif => C:\Users\Admin\Pictures\CloseDebug.tif.Rook	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe
File opened for modification	C:\Users\Admin\Pictures\CloseDebug.tif.Rook	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe
File opened for modification	C:\Users\Admin\Pictures\MoveUnprotect.crw.Rook	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe
File opened for modification	C:\Users\Admin\Pictures\SubmitLimit.tiff.Rook	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe
File renamed	C:\Users\Admin\Pictures\MoveUnprotect.crw => C:\Users\Admin\Pictures\MoveUnprotect.crw.Rook	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe
File renamed	C:\Users\Admin\Pictures\RedoCopy.raw => C:\Users\Admin\Pictures\RedoCopy.raw.Rook	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe
File opened for modification	C:\Users\Admin\Pictures\SubmitLimit.tiff	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe
File opened for modification	C:\Users\Admin\Pictures\RedoCopy.raw.Rook	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe
File renamed	C:\Users\Admin\Pictures\SubmitLimit.tiff => C:\Users\Admin\Pictures\SubmitLimit.tiff.Rook	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe

Deletes itself 1 IoCs

Processes:

925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe

pid process

2416 925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe

Enumerates connected drives 3 TTPs 24 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:

925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe

description	ioc	process
File opened (read-only)	\??\H:	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe
File opened (read-only)	\??\K:	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe
File opened (read-only)	\??\X:	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe
File opened (read-only)	\??\N:	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe
File opened (read-only)	\??\T:	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe
File opened (read-only)	\??\Y:	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe
File opened (read-only)	\??\O:	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe
File opened (read-only)	\??\F:	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe
File opened (read-only)	\??\W:	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe
File opened (read-only)	\??\R:	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe
File opened (read-only)	\??\I:	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe
File opened (read-only)	\??\S:	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe
File opened (read-only)	\??\B:	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe
File opened (read-only)	\??\Q:	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe
File opened (read-only)	\??\E:	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe
File opened (read-only)	\??\U:	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe
File opened (read-only)	\??\A:	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe
File opened (read-only)	\??\Z:	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe
File opened (read-only)	\??\V:	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe
File opened (read-only)	\??\M:	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe
File opened (read-only)	\??\P:	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe
File opened (read-only)	\??\G:	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe
File opened (read-only)	\??\J:	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe
File opened (read-only)	\??\L:	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe

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

System Information Discovery
T1082
Interacts with shadow copies 2 TTPs 2 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Processes:

vssadmin.exevssadmin.exe

pid process

3712 vssadmin.exe
3588 vssadmin.exe

pid	process
3712	vssadmin.exe
3588	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe

pid	process
2416	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe
2416	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe

Suspicious behavior: RenamesItself 1 IoCs

Processes:

925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe

pid process

2416 925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 3924 vssvc.exe
Token: SeRestorePrivilege 3924 vssvc.exe
Token: SeAuditPrivilege 3924 vssvc.exe

description	pid	process
Token: SeBackupPrivilege	3924	vssvc.exe
Token: SeRestorePrivilege	3924	vssvc.exe
Token: SeAuditPrivilege	3924	vssvc.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.execmd.execmd.exe

description	pid	process	target process
PID 2416 wrote to memory of 3504	2416	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe	cmd.exe
PID 2416 wrote to memory of 3504	2416	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe	cmd.exe
PID 3504 wrote to memory of 3712	3504	cmd.exe	vssadmin.exe
PID 3504 wrote to memory of 3712	3504	cmd.exe	vssadmin.exe
PID 2416 wrote to memory of 672	2416	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe	cmd.exe
PID 2416 wrote to memory of 672	2416	925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe	cmd.exe
PID 672 wrote to memory of 3588	672	cmd.exe	vssadmin.exe
PID 672 wrote to memory of 3588	672	cmd.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe
"C:\Users\Admin\AppData\Local\Temp\925e2f58599cfb91a03f516986676a206fc9af42000de106de6af32e9ba558bb.exe"
1⤵
- Modifies extensions of user files
- Deletes itself
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:2416

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
2⤵
- Suspicious use of WriteProcessMemory
PID:3504

C:\Windows\system32\vssadmin.exe
vssadmin.exe delete shadows /all /quiet
3⤵
- Interacts with shadow copies
PID:3712

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
2⤵
- Suspicious use of WriteProcessMemory
PID:672