blackmatter | 8561226f674aeb4abc1b9910ddc4855ac8ac2fcd4f5face1f84e34878ac98afc

Analysis

max time kernel
124s
max time network
168s
platform
windows10_x64
resource
win10-en-20211014
submitted
23-11-2021 10:31

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General

Target

7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
Size

67KB
MD5

d0512f2063cbd79fb0f770817cc81ab3
SHA1

e324a2c8fae0d26b12f00ac859340f8d9945a9c1
SHA256

7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984
SHA512

a62cecdf8887e426332d56914dfe03780402a34896ffe7a3a932986832db7080e599db32bb2113238443750227a50de84ae36c6811993c43b7eee8b1a018d641

Score

10^/10

blackmatter ransomware suricata

Malware Config

Extracted

Path

C:\WRLMMTHME.README.txt

Family

blackmatter

Ransom Note

~+ * + ' BLACK | () .-.,='``'=. - o - '=/_ \ | * | '=._ | \ `=./`, ' . '=.__.=' `=' * + Matter + O * ' . >>> What happens? Your network is encrypted, and currently not operational. We have downloaded 1TB from your fileserver. We need only money, after payment we will give you a decryptor for the entire network and you will restore all the data. >>> 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. >> Data leak includes 1. Full emloyeers personal data 2. Network information 3. Schemes of buildings, active project information, architect details and contracts, 4. Finance info >>> How to contact with us? 1. Download and install TOR Browser (https://www.torproject.org/). 2. Open http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/7NT6LXKC1XQHW5039BLOV. >>> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.

URLs

http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/7NT6LXKC1XQHW5039BLOV

Signatures

BlackMatter Ransomware
BlackMatter ransomware group claims to be Darkside and REvil succesor.
ransomware blackmatter
suricata: ET MALWARE BlackMatter CnC Activity
suricata: ET MALWARE BlackMatter CnC Activity
suricata
suricata: ET MALWARE BlackMatter CnC Domain in DNS Lookup (mojobiden .com)
suricata: ET MALWARE BlackMatter CnC Domain in DNS Lookup (mojobiden .com)
suricata
suricata: ET MALWARE BlackMatter CnC Domain in DNS Lookup (paymenthacks .com)
suricata: ET MALWARE BlackMatter CnC Domain in DNS Lookup (paymenthacks .com)
suricata

Modifies extensions of user files 18 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe

description	ioc	process
File opened for modification	C:\Users\Admin\Pictures\CompareComplete.png.WRLMMTHME	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
File renamed	C:\Users\Admin\Pictures\MergeSync.crw => C:\Users\Admin\Pictures\MergeSync.crw.WRLMMTHME	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
File opened for modification	C:\Users\Admin\Pictures\OutSwitch.tiff	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
File opened for modification	C:\Users\Admin\Pictures\PingOpen.png.WRLMMTHME	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
File opened for modification	C:\Users\Admin\Pictures\RenameWrite.tiff	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
File renamed	C:\Users\Admin\Pictures\ResumeDebug.tif => C:\Users\Admin\Pictures\ResumeDebug.tif.WRLMMTHME	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
File opened for modification	C:\Users\Admin\Pictures\StartResize.crw.WRLMMTHME	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
File opened for modification	C:\Users\Admin\Pictures\MergeSync.crw.WRLMMTHME	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
File opened for modification	C:\Users\Admin\Pictures\OutSwitch.tiff.WRLMMTHME	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
File renamed	C:\Users\Admin\Pictures\PingOpen.png => C:\Users\Admin\Pictures\PingOpen.png.WRLMMTHME	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
File renamed	C:\Users\Admin\Pictures\RedoDisconnect.raw => C:\Users\Admin\Pictures\RedoDisconnect.raw.WRLMMTHME	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
File opened for modification	C:\Users\Admin\Pictures\RedoDisconnect.raw.WRLMMTHME	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
File opened for modification	C:\Users\Admin\Pictures\RenameWrite.tiff.WRLMMTHME	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
File opened for modification	C:\Users\Admin\Pictures\ResumeDebug.tif.WRLMMTHME	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
File renamed	C:\Users\Admin\Pictures\StartResize.crw => C:\Users\Admin\Pictures\StartResize.crw.WRLMMTHME	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
File renamed	C:\Users\Admin\Pictures\CompareComplete.png => C:\Users\Admin\Pictures\CompareComplete.png.WRLMMTHME	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
File renamed	C:\Users\Admin\Pictures\OutSwitch.tiff => C:\Users\Admin\Pictures\OutSwitch.tiff.WRLMMTHME	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
File renamed	C:\Users\Admin\Pictures\RenameWrite.tiff => C:\Users\Admin\Pictures\RenameWrite.tiff.WRLMMTHME	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.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

Processes:

7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe

description ioc process

File opened (read-only) \??\Z: 7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe

description	ioc	process
File opened (read-only)	\??\Z:	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe

Sets desktop wallpaper using registry 2 TTPs 2 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

Processes:

7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\WRLMMTHME.bmp"	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\WRLMMTHME.bmp"	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs

Processes:

7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe

pid	process
3288	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
3288	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
3288	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
3288	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
3288	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
3288	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe

Modifies Control Panel 3 IoCs

evasion

Processes:

7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Control Panel\International	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
Key created	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Control Panel\Desktop	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Control Panel\Desktop\WallpaperStyle = "10"	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe

pid	process
3288	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
3288	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
3288	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
3288	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe

Suspicious use of AdjustPrivilegeToken 17 IoCs

Processes:

7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exevssvc.exe

description	pid	process
Token: SeBackupPrivilege	3288	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
Token: SeDebugPrivilege	3288	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
Token: 36	3288	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
Token: SeImpersonatePrivilege	3288	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
Token: SeIncBasePriorityPrivilege	3288	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
Token: SeIncreaseQuotaPrivilege	3288	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
Token: 33	3288	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
Token: SeManageVolumePrivilege	3288	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
Token: SeProfSingleProcessPrivilege	3288	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
Token: SeRestorePrivilege	3288	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
Token: SeSecurityPrivilege	3288	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
Token: SeSystemProfilePrivilege	3288	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
Token: SeTakeOwnershipPrivilege	3288	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
Token: SeShutdownPrivilege	3288	7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
Token: SeBackupPrivilege	1344	vssvc.exe
Token: SeRestorePrivilege	1344	vssvc.exe
Token: SeAuditPrivilege	1344	vssvc.exe

C:\Users\Admin\AppData\Local\Temp\7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.exe
"C:\Users\Admin\AppData\Local\Temp\7f6dd0ca03f04b64024e86a72a6d7cfab6abccc2173b85896fc4b431990a5984.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:3288

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1344

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Defacement

T1491

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Downloads

memory/3288-115-0x0000000002423000-0x0000000002425000-memory.dmp

Filesize
8KB

Download
memory/3288-116-0x0000000002420000-0x0000000002421000-memory.dmp

Filesize
4KB

Download