blackmatter | eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1

General

Target

eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
Size

36KB
MD5

7c02bc2ee956639ffdfa4eac62305708
SHA1

9e745e222ba198dd9fc29264ffeff189d13e9b51
SHA256

eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1
SHA512

47a49b46aa6e514b97e863968d6b921a1ee0a65eb27812506e30e0ba7e5e32e64b6a62662e7cec32c4febfce9371a56b64e0ed272dc54176427f7b0f9ab8d821

Score

10^/10

blackmatter ransomware

Malware Config

Extracted

Path

\??\Z:\WRLMMTHME.README.txt

Family

blackmatter

Ransom Note

~+ * + ' BLACK | () .-.,='``'=. - o - '=/_ \ | * | '=._ | \ `=./`, ' . '=.__.=' `=' * + Matter + O * ' . >>> What happens? Your network is encrypted, and currently not operational. We need only money, after payment we will give you a decryptor for the entire network and you will restore all the data. >>> What data stolen? From your network was stolen sensitive data. If you do not contact us we will publish all your data in our blog and will send it to the biggest mass media. >>> What guarantees? We are not a politically motivated group and we do not need anything other than your money. If you pay, we will provide you the programs for decryption and we will delete your data. If we do not give you decrypters or we do not delete your data, no one will pay us in the future, this does not comply with our goals. We always keep our promises. >> How to contact with us? 1. Download and install TOR Browser (https://www.torproject.org/). 2. Open http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/D4MX4VGFCMO7MFQ6P >> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.

URLs

http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/D4MX4VGFCMO7MFQ6P

Signatures

BlackMatter Ransomware
BlackMatter ransomware group claims to be Darkside and REvil succesor.
ransomware blackmatter

Modifies extensions of user files 14 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\WaitUse.tif.WRLMMTHME	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
File renamed	C:\Users\Admin\Pictures\ClearGroup.tif => C:\Users\Admin\Pictures\ClearGroup.tif.WRLMMTHME	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
File renamed	C:\Users\Admin\Pictures\ConvertFromReset.tif => C:\Users\Admin\Pictures\ConvertFromReset.tif.WRLMMTHME	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
File renamed	C:\Users\Admin\Pictures\ExpandOpen.raw => C:\Users\Admin\Pictures\ExpandOpen.raw.WRLMMTHME	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
File renamed	C:\Users\Admin\Pictures\MeasureRequest.crw => C:\Users\Admin\Pictures\MeasureRequest.crw.WRLMMTHME	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
File opened for modification	C:\Users\Admin\Pictures\ClearGroup.tif.WRLMMTHME	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
File opened for modification	C:\Users\Admin\Pictures\ConvertFromReset.tif.WRLMMTHME	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
File opened for modification	C:\Users\Admin\Pictures\MeasureRequest.crw.WRLMMTHME	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
File opened for modification	C:\Users\Admin\Pictures\ExpandOpen.raw.WRLMMTHME	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
File renamed	C:\Users\Admin\Pictures\OpenWrite.png => C:\Users\Admin\Pictures\OpenWrite.png.WRLMMTHME	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
File renamed	C:\Users\Admin\Pictures\TestExport.crw => C:\Users\Admin\Pictures\TestExport.crw.WRLMMTHME	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
File renamed	C:\Users\Admin\Pictures\WaitUse.tif => C:\Users\Admin\Pictures\WaitUse.tif.WRLMMTHME	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
File opened for modification	C:\Users\Admin\Pictures\OpenWrite.png.WRLMMTHME	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
File opened for modification	C:\Users\Admin\Pictures\TestExport.crw.WRLMMTHME	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe

Enumerates connected drives 3 TTPs 1 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)	\??\Z:	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe

Sets desktop wallpaper using registry 2 TTPs 2 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\WRLMMTHME.bmp"	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\WRLMMTHME.bmp"	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs

pid	Process
4036	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
4036	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
4036	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
4036	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
4036	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
4036	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe

Modifies Control Panel 3 IoCs

evasion

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Control Panel\International	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
Key created	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Control Panel\Desktop	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Control Panel\Desktop\WallpaperStyle = "10"	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4036	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
4036	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
4036	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
4036	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe

Suspicious use of AdjustPrivilegeToken 17 IoCs

description	pid	Process
Token: SeBackupPrivilege	4036	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
Token: SeDebugPrivilege	4036	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
Token: 36	4036	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
Token: SeImpersonatePrivilege	4036	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
Token: SeIncBasePriorityPrivilege	4036	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
Token: SeIncreaseQuotaPrivilege	4036	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
Token: 33	4036	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
Token: SeManageVolumePrivilege	4036	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
Token: SeProfSingleProcessPrivilege	4036	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
Token: SeRestorePrivilege	4036	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
Token: SeSecurityPrivilege	4036	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
Token: SeSystemProfilePrivilege	4036	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
Token: SeTakeOwnershipPrivilege	4036	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
Token: SeShutdownPrivilege	4036	eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
Token: SeBackupPrivilege	3284	vssvc.exe
Token: SeRestorePrivilege	3284	vssvc.exe
Token: SeAuditPrivilege	3284	vssvc.exe

C:\Users\Admin\AppData\Local\Temp\eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe
"C:\Users\Admin\AppData\Local\Temp\eafce6e79a087b26475260afe43f337e7168056616b3e073832891bf18c299c1.exe"
1⤵
- Modifies extensions of user files
- Enumerates connected drives
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies Control Panel
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4036

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3284

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

1

T1491

Replay Monitor

Loading Replay Monitor...

Downloads

memory/4036-115-0x0000000002A83000-0x0000000002A85000-memory.dmp

Filesize
8KB

Download
memory/4036-116-0x0000000002A80000-0x0000000002A81000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing