blackmatter | 668a4a2300f36c9df0f7307cc614be3297f036fa312a424765cdb2c169187fe6

General

Target

bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
Size

34KB
MD5

6f5c77478795ff7fb9700ed50b334429
SHA1

6803d62254edf3bdd3bc523422ff98e6120b6e5b
SHA256

668a4a2300f36c9df0f7307cc614be3297f036fa312a424765cdb2c169187fe6
SHA512

40e4ffd227443003e0506f8d1fbfbacde54f9bfb5fa6908f05e134ee25217d3c3907d7c981107d642c071063b57253b4727fb6a211d7698a7a9bae2d8beede5f

Score

10^/10

blackmatter ransomware upx

Malware Config

Extracted

Path

C:\OEXO29vOR.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/GDBJS76DH3D4IKQD2QO7R. >>> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.

URLs

http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/GDBJS76DH3D4IKQD2QO7R

Extracted

Family

blackmatter

Version

1.2

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 renamed	C:\Users\Admin\Pictures\PingSave.tiff => C:\Users\Admin\Pictures\PingSave.tiff.OEXO29vOR	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
File opened for modification	C:\Users\Admin\Pictures\DismountRequest.crw.OEXO29vOR	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
File opened for modification	C:\Users\Admin\Pictures\ExportUse.raw.OEXO29vOR	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
File opened for modification	C:\Users\Admin\Pictures\PingSave.tiff	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
File renamed	C:\Users\Admin\Pictures\ExportUse.raw => C:\Users\Admin\Pictures\ExportUse.raw.OEXO29vOR	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
File renamed	C:\Users\Admin\Pictures\UnlockInstall.png => C:\Users\Admin\Pictures\UnlockInstall.png.OEXO29vOR	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
File opened for modification	C:\Users\Admin\Pictures\UnlockInstall.png.OEXO29vOR	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
File opened for modification	C:\Users\Admin\Pictures\MoveInvoke.png.OEXO29vOR	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
File renamed	C:\Users\Admin\Pictures\PopResolve.tiff => C:\Users\Admin\Pictures\PopResolve.tiff.OEXO29vOR	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
File opened for modification	C:\Users\Admin\Pictures\PopResolve.tiff.OEXO29vOR	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
File opened for modification	C:\Users\Admin\Pictures\PopResolve.tiff	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
File renamed	C:\Users\Admin\Pictures\DismountRequest.crw => C:\Users\Admin\Pictures\DismountRequest.crw.OEXO29vOR	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
File renamed	C:\Users\Admin\Pictures\MoveInvoke.png => C:\Users\Admin\Pictures\MoveInvoke.png.OEXO29vOR	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
File opened for modification	C:\Users\Admin\Pictures\PingSave.tiff.OEXO29vOR	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3360-130-0x0000000000340000-0x0000000000357000-memory.dmp	upx
behavioral2/memory/3360-131-0x0000000000340000-0x0000000000357000-memory.dmp	upx

Sets desktop wallpaper using registry 2 TTPs 2 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\OEXO29vOR.bmp"	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\OEXO29vOR.bmp"	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs

pid	Process
3360	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
3360	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
3360	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
3360	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
3360	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
3360	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe

Modifies Control Panel 3 IoCs

evasion

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Control Panel\International	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
Key created	\REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Control Panel\Desktop	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Control Panel\Desktop\WallpaperStyle = "10"	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3360	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
3360	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
3360	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
3360	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe

Suspicious use of AdjustPrivilegeToken 17 IoCs

description	pid	Process
Token: SeBackupPrivilege	3360	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
Token: SeDebugPrivilege	3360	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
Token: 36	3360	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
Token: SeImpersonatePrivilege	3360	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
Token: SeIncBasePriorityPrivilege	3360	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
Token: SeIncreaseQuotaPrivilege	3360	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
Token: 33	3360	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
Token: SeManageVolumePrivilege	3360	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
Token: SeProfSingleProcessPrivilege	3360	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
Token: SeRestorePrivilege	3360	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
Token: SeSecurityPrivilege	3360	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
Token: SeSystemProfilePrivilege	3360	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
Token: SeTakeOwnershipPrivilege	3360	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
Token: SeShutdownPrivilege	3360	bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
Token: SeBackupPrivilege	4576	vssvc.exe
Token: SeRestorePrivilege	4576	vssvc.exe
Token: SeAuditPrivilege	4576	vssvc.exe

C:\Users\Admin\AppData\Local\Temp\bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe
"C:\Users\Admin\AppData\Local\Temp\bcef5de9b1667dcdded82596b3a2b4b11c8546659f49662bb352d754d869c641.exe"
1⤵
- Modifies extensions of user files
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies Control Panel
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3360

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4576

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

1

T1491

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Downloads

memory/3360-130-0x0000000000340000-0x0000000000357000-memory.dmp

Filesize
92KB

Download
memory/3360-131-0x0000000000340000-0x0000000000357000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads