darkylock | 393a7a313548a4edc025fb47c6c8e614ecc2b41db880ecb59f20cf238e9a864c

General

Target

E_WIN.exe
Size

92KB
MD5

7cdc8057b3fe13b069b8db93fdde1764
SHA1

8ddd3c69fe3935e4903a2b397bc6f0de772a1bcb
SHA256

393a7a313548a4edc025fb47c6c8e614ecc2b41db880ecb59f20cf238e9a864c
SHA512

7a7778b03a681bad08722019d27c2ca56609cbe6ec6e976b2d08e402b7ec5f2c7ad7d935632c0958b15b42d3dd066b1bd03707a778d77592a29b92adae684801
SSDEEP

1536:y8JknEUnj2zfGN2/PEiTsrQLOJgY8ZZP8LHD4XWaNH71dLdG1iiFM2iG2XsfzK7g:ynlnj2S+hTsrQLOJgY8Zp8LHD4XWaNHY

Score

10^/10

darkylock ransomware

Malware Config

Extracted

Path

C:\Restore-My-Files.txt

Family

darkylock

Ransom Note

---------- Hello ----------- ***WELCOME TO DARKY LOCK *** Your computers and servers are encrypted, and backups are deleted. We use strong encryption algorithms, so no one has yet been able to decrypt their files without our participation. The only way to decrypt your files is to purchase a universal decoder from us, which will restore all the encrypted data and your network. Follow our instructions below, and you will recover all your data: 1) Pay 0.005 bitcoin to 1E6cvG6iEbufvYspsDa3XQ3WJgEMvRTm9i 2) Send us message with transaction id to [email protected] 3) Launch decrypt_bit.exe, which our support will send you through email What guarantees? ------------------ We value our reputation. If we will not do our work and liabilities, nobody will pay us. This is not in our interests. All our decryption software is tested by time and will decrypt all your data. ------------------ !!! DO NOT TRY TO RECOVER ANY FILES YOURSELF. WE WILL NOT BE ABLE TO RESTORE THEM!!!

Emails

[email protected]

Wallets

1E6cvG6iEbufvYspsDa3XQ3WJgEMvRTm9i

Signatures

DarkyLock
Ransomware family first seen in July 2022.
ransomware darkylock
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 6 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

E_WIN.exe

description	ioc	process
File opened for modification	C:\Users\Admin\Pictures\CompareCopy.tiff	E_WIN.exe
File renamed	C:\Users\Admin\Pictures\CompareCopy.tiff => C:\Users\Admin\Pictures\CompareCopy.tiff.darky	E_WIN.exe
File opened for modification	C:\Users\Admin\Pictures\CompareCopy.tiff.darky	E_WIN.exe
File opened for modification	C:\Users\Admin\Pictures\OpenAssert.tiff	E_WIN.exe
File renamed	C:\Users\Admin\Pictures\OpenAssert.tiff => C:\Users\Admin\Pictures\OpenAssert.tiff.darky	E_WIN.exe
File opened for modification	C:\Users\Admin\Pictures\OpenAssert.tiff.darky	E_WIN.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:

E_WIN.exe

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

460 vssadmin.exe
1704 vssadmin.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

E_WIN.exe

pid process

968 E_WIN.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 1752 vssvc.exe
Token: SeRestorePrivilege 1752 vssvc.exe
Token: SeAuditPrivilege 1752 vssvc.exe

pid	process
460	vssadmin.exe
1704	vssadmin.exe

pid	process
968	E_WIN.exe

description	pid	process
Token: SeBackupPrivilege	1752	vssvc.exe
Token: SeRestorePrivilege	1752	vssvc.exe
Token: SeAuditPrivilege	1752	vssvc.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

E_WIN.execmd.execmd.exe

description	pid	process	target process
PID 968 wrote to memory of 996	968	E_WIN.exe	cmd.exe
PID 968 wrote to memory of 996	968	E_WIN.exe	cmd.exe
PID 968 wrote to memory of 996	968	E_WIN.exe	cmd.exe
PID 968 wrote to memory of 996	968	E_WIN.exe	cmd.exe
PID 996 wrote to memory of 1704	996	cmd.exe	vssadmin.exe
PID 996 wrote to memory of 1704	996	cmd.exe	vssadmin.exe
PID 996 wrote to memory of 1704	996	cmd.exe	vssadmin.exe
PID 968 wrote to memory of 1920	968	E_WIN.exe	cmd.exe
PID 968 wrote to memory of 1920	968	E_WIN.exe	cmd.exe
PID 968 wrote to memory of 1920	968	E_WIN.exe	cmd.exe
PID 968 wrote to memory of 1920	968	E_WIN.exe	cmd.exe
PID 1920 wrote to memory of 460	1920	cmd.exe	vssadmin.exe
PID 1920 wrote to memory of 460	1920	cmd.exe	vssadmin.exe
PID 1920 wrote to memory of 460	1920	cmd.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\E_WIN.exe
"C:\Users\Admin\AppData\Local\Temp\E_WIN.exe"
1⤵
- Modifies extensions of user files
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:968
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:996
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:1704
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1920
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:460

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1752

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File Deletion

2

T1107

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

2

T1490

Replay Monitor

Loading Replay Monitor...

Downloads

memory/460-59-0x0000000000000000-mapping.dmp

Download
memory/968-54-0x0000000075921000-0x0000000075923000-memory.dmp

Filesize
8KB

Download
memory/968-55-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/996-56-0x0000000000000000-mapping.dmp

Download
memory/1704-57-0x0000000000000000-mapping.dmp

Download
memory/1920-58-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads