blackmatter | 8561226f674aeb4abc1b9910ddc4855ac8ac2fcd4f5face1f84e34878ac98afc

Analysis

max time kernel
125s
max time network
164s
platform
windows10_x64
resource
win10-en-20211104
submitted
23-11-2021 10:31

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General

Target

5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
Size

78KB
MD5

38035325b785329e3f618b2a0b90eb75
SHA1

33294a6c609b6ced2acef3964d7ec34dc0101a9a
SHA256

5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa
SHA512

675a0defdfa3de5f54ece0297d955372480f25e8b9f27fa700d5cdc2c6ecedadc7b68cac2f8e2e452bdbab6a958593f45d3eab14d6e7bbfee472383879bd7b17

Score

10^/10

blackmatter ransomware suricata

Malware Config

Extracted

Path

C:\eeWDzMyD5.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 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/O3KTUJZRE6CB4Q1OBR >>> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.

URLs

http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/O3KTUJZRE6CB4Q1OBR

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 (nowautomation .com)
suricata: ET MALWARE BlackMatter CnC Domain in DNS Lookup (nowautomation .com)
suricata

Modifies extensions of user files 12 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\ImportShow.tiff	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
File renamed	C:\Users\Admin\Pictures\ImportShow.tiff => C:\Users\Admin\Pictures\ImportShow.tiff.eeWDzMyD5	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
File opened for modification	C:\Users\Admin\Pictures\ProtectReset.tiff.eeWDzMyD5	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
File renamed	C:\Users\Admin\Pictures\ResetSend.tif => C:\Users\Admin\Pictures\ResetSend.tif.eeWDzMyD5	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
File opened for modification	C:\Users\Admin\Pictures\ResetSend.tif.eeWDzMyD5	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
File renamed	C:\Users\Admin\Pictures\SendInitialize.raw => C:\Users\Admin\Pictures\SendInitialize.raw.eeWDzMyD5	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
File opened for modification	C:\Users\Admin\Pictures\SendInitialize.raw.eeWDzMyD5	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
File opened for modification	C:\Users\Admin\Pictures\TestConfirm.png.eeWDzMyD5	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
File opened for modification	C:\Users\Admin\Pictures\ImportShow.tiff.eeWDzMyD5	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
File opened for modification	C:\Users\Admin\Pictures\ProtectReset.tiff	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
File renamed	C:\Users\Admin\Pictures\ProtectReset.tiff => C:\Users\Admin\Pictures\ProtectReset.tiff.eeWDzMyD5	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
File renamed	C:\Users\Admin\Pictures\TestConfirm.png => C:\Users\Admin\Pictures\TestConfirm.png.eeWDzMyD5	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.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:	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.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-1-5-21-1042495040-510797905-2613508344-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\eeWDzMyD5.bmp"	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\eeWDzMyD5.bmp"	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs

pid	Process
3960	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
3960	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
3960	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
3960	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
3960	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
3960	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe

Modifies Control Panel 3 IoCs

evasion

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Control Panel\International	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
Key created	\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Control Panel\Desktop	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Control Panel\Desktop\WallpaperStyle = "10"	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3960	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
3960	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
3960	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
3960	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe

Suspicious use of AdjustPrivilegeToken 17 IoCs

description	pid	Process
Token: SeBackupPrivilege	3960	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
Token: SeDebugPrivilege	3960	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
Token: 36	3960	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
Token: SeImpersonatePrivilege	3960	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
Token: SeIncBasePriorityPrivilege	3960	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
Token: SeIncreaseQuotaPrivilege	3960	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
Token: 33	3960	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
Token: SeManageVolumePrivilege	3960	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
Token: SeProfSingleProcessPrivilege	3960	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
Token: SeRestorePrivilege	3960	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
Token: SeSecurityPrivilege	3960	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
Token: SeSystemProfilePrivilege	3960	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
Token: SeTakeOwnershipPrivilege	3960	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
Token: SeShutdownPrivilege	3960	5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
Token: SeBackupPrivilege	2756	vssvc.exe
Token: SeRestorePrivilege	2756	vssvc.exe
Token: SeAuditPrivilege	2756	vssvc.exe

C:\Users\Admin\AppData\Local\Temp\5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.exe
"C:\Users\Admin\AppData\Local\Temp\5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa.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:3960

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2756

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

T1491

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Downloads

memory/3960-119-0x00000000011C0000-0x00000000011C1000-memory.dmp

Filesize
4KB

Download
memory/3960-118-0x00000000011C3000-0x00000000011C5000-memory.dmp

Filesize
8KB

Download