rook | f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789

General

Target

f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe
Size

170KB
MD5

bec9b3480934ce3d30c25e1272f60d02
SHA1

104d9e31e34ba8517f701552594f1fc167550964
SHA256

f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789
SHA512

99ebdaf100af272678b92cdb0743cdb6a1b4a8ecc83a1fb3127dfc53bf609a655715bf9ee3a4a7dbee7ae21cb5ff98283772d9bf5641e394b7e3c21a1010cdbc

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:

f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe

description	ioc	process
File renamed	C:\Users\Admin\Pictures\InstallResize.tif => C:\Users\Admin\Pictures\InstallResize.tif.Rook	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe
File opened for modification	C:\Users\Admin\Pictures\InstallResize.tif.Rook	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe
File renamed	C:\Users\Admin\Pictures\RepairStep.tiff => C:\Users\Admin\Pictures\RepairStep.tiff.Rook	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe
File opened for modification	C:\Users\Admin\Pictures\RepairStep.tiff.Rook	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe
File renamed	C:\Users\Admin\Pictures\RegisterImport.png => C:\Users\Admin\Pictures\RegisterImport.png.Rook	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe
File opened for modification	C:\Users\Admin\Pictures\RegisterImport.png.Rook	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe
File opened for modification	C:\Users\Admin\Pictures\UnlockStop.raw.Rook	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe
File opened for modification	C:\Users\Admin\Pictures\RepairStep.tiff	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe
File renamed	C:\Users\Admin\Pictures\UnlockStop.raw => C:\Users\Admin\Pictures\UnlockStop.raw.Rook	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe

Deletes itself 1 IoCs

Processes:

f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe

pid process

1384 f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.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:

f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe

description	ioc	process
File opened (read-only)	\??\P:	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe
File opened (read-only)	\??\B:	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe
File opened (read-only)	\??\M:	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe
File opened (read-only)	\??\N:	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe
File opened (read-only)	\??\R:	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe
File opened (read-only)	\??\U:	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe
File opened (read-only)	\??\A:	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe
File opened (read-only)	\??\G:	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe
File opened (read-only)	\??\H:	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe
File opened (read-only)	\??\Z:	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe
File opened (read-only)	\??\K:	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe
File opened (read-only)	\??\V:	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe
File opened (read-only)	\??\Q:	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe
File opened (read-only)	\??\T:	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe
File opened (read-only)	\??\I:	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe
File opened (read-only)	\??\O:	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe
File opened (read-only)	\??\S:	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe
File opened (read-only)	\??\F:	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe
File opened (read-only)	\??\W:	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe
File opened (read-only)	\??\E:	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe
File opened (read-only)	\??\Y:	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe
File opened (read-only)	\??\J:	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe
File opened (read-only)	\??\L:	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe
File opened (read-only)	\??\X:	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.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

2820 vssadmin.exe
2792 vssadmin.exe

pid	process
2820	vssadmin.exe
2792	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe

pid	process
1384	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe
1384	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe

Suspicious behavior: RenamesItself 1 IoCs

Processes:

f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe

pid process

1384 f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 3088 vssvc.exe
Token: SeRestorePrivilege 3088 vssvc.exe
Token: SeAuditPrivilege 3088 vssvc.exe

description	pid	process
Token: SeBackupPrivilege	3088	vssvc.exe
Token: SeRestorePrivilege	3088	vssvc.exe
Token: SeAuditPrivilege	3088	vssvc.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.execmd.execmd.exe

description	pid	process	target process
PID 1384 wrote to memory of 3644	1384	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe	cmd.exe
PID 1384 wrote to memory of 3644	1384	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe	cmd.exe
PID 3644 wrote to memory of 2820	3644	cmd.exe	vssadmin.exe
PID 3644 wrote to memory of 2820	3644	cmd.exe	vssadmin.exe
PID 1384 wrote to memory of 2084	1384	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe	cmd.exe
PID 1384 wrote to memory of 2084	1384	f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe	cmd.exe
PID 2084 wrote to memory of 2792	2084	cmd.exe	vssadmin.exe
PID 2084 wrote to memory of 2792	2084	cmd.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe
"C:\Users\Admin\AppData\Local\Temp\f87be226e26e873275bde549539f70210ffe5e3a129448ae807a319cbdcf7789.exe"
1⤵
- Modifies extensions of user files
- Checks computer location settings
- Deletes itself
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:1384

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
2⤵
- Suspicious use of WriteProcessMemory
PID:3644

C:\Windows\system32\vssadmin.exe
vssadmin.exe delete shadows /all /quiet
3⤵
- Interacts with shadow copies
PID:2820

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
2⤵
- Suspicious use of WriteProcessMemory
PID:2084