blackmatter | bf9511517f610387d714553bed6ff59d55c21cd0aa18ae00714585e699a332a3

Analysis

max time kernel
120s
max time network
132s
platform
windows7_x64
resource
win7-en-20211014
submitted
22-11-2021 13:14

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General

Target

1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
Size

79KB
MD5

f019a40b28dd58603fa3c5194dae6cba
SHA1

08e09a6ef7650f5e7d4bf3fa8850ac4ca762da7d
SHA256

1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849
SHA512

22fba76bbeb356ba97412938ab882768f831273251e25b1078c8a31d720dd14c73e8977054bf24cf40952f143635b205917cc905f371499cbbc639388c3df487

Score

10^/10

blackmatter ransomware

Malware Config

Extracted

Path

C:\6amPnJyPq.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://supp24maprinktc7uizgfyqhisx7lkszb6ogh6lwdzpac23w3mh4tvyd.onion/IRCWUUXN0Y4BIFFZW >>> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.

URLs

http://supp24maprinktc7uizgfyqhisx7lkszb6ogh6lwdzpac23w3mh4tvyd.onion/IRCWUUXN0Y4BIFFZW

Signatures

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

Modifies extensions of user files 18 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\UninstallSuspend.tiff	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
File renamed	C:\Users\Admin\Pictures\UnprotectEnable.tif => C:\Users\Admin\Pictures\UnprotectEnable.tif.6amPnJyPq	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
File renamed	C:\Users\Admin\Pictures\WatchReceive.tiff => C:\Users\Admin\Pictures\WatchReceive.tiff.6amPnJyPq	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
File renamed	C:\Users\Admin\Pictures\PingCompress.tiff => C:\Users\Admin\Pictures\PingCompress.tiff.6amPnJyPq	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
File renamed	C:\Users\Admin\Pictures\SearchNew.tiff => C:\Users\Admin\Pictures\SearchNew.tiff.6amPnJyPq	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
File opened for modification	C:\Users\Admin\Pictures\WatchReceive.tiff	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
File opened for modification	C:\Users\Admin\Pictures\SearchNew.tiff	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
File opened for modification	C:\Users\Admin\Pictures\SearchNew.tiff.6amPnJyPq	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
File renamed	C:\Users\Admin\Pictures\UnprotectEnable.png => C:\Users\Admin\Pictures\UnprotectEnable.png.6amPnJyPq	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
File opened for modification	C:\Users\Admin\Pictures\UnprotectEnable.tif.6amPnJyPq	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
File opened for modification	C:\Users\Admin\Pictures\DisconnectResolve.tif.6amPnJyPq	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
File opened for modification	C:\Users\Admin\Pictures\PingCompress.tiff	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
File renamed	C:\Users\Admin\Pictures\UninstallSuspend.tiff => C:\Users\Admin\Pictures\UninstallSuspend.tiff.6amPnJyPq	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
File opened for modification	C:\Users\Admin\Pictures\UninstallSuspend.tiff.6amPnJyPq	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
File opened for modification	C:\Users\Admin\Pictures\UnprotectEnable.png.6amPnJyPq	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
File opened for modification	C:\Users\Admin\Pictures\WatchReceive.tiff.6amPnJyPq	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
File renamed	C:\Users\Admin\Pictures\DisconnectResolve.tif => C:\Users\Admin\Pictures\DisconnectResolve.tif.6amPnJyPq	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
File opened for modification	C:\Users\Admin\Pictures\PingCompress.tiff.6amPnJyPq	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.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-1-5-21-2955169046-2371869340-1800780948-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\6amPnJyPq.bmp"	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\6amPnJyPq.bmp"	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs

pid	Process
528	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
528	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
528	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
528	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
528	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
528	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe

Modifies Control Panel 2 IoCs

evasion

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Control Panel\Desktop	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Control Panel\Desktop\WallpaperStyle = "10"	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
528	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
528	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
528	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
528	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe

Suspicious use of AdjustPrivilegeToken 17 IoCs

description	pid	Process
Token: SeBackupPrivilege	528	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
Token: SeDebugPrivilege	528	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
Token: 36	528	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
Token: SeImpersonatePrivilege	528	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
Token: SeIncBasePriorityPrivilege	528	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
Token: SeIncreaseQuotaPrivilege	528	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
Token: 33	528	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
Token: SeManageVolumePrivilege	528	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
Token: SeProfSingleProcessPrivilege	528	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
Token: SeRestorePrivilege	528	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
Token: SeSecurityPrivilege	528	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
Token: SeSystemProfilePrivilege	528	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
Token: SeTakeOwnershipPrivilege	528	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
Token: SeShutdownPrivilege	528	1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
Token: SeBackupPrivilege	1180	vssvc.exe
Token: SeRestorePrivilege	1180	vssvc.exe
Token: SeAuditPrivilege	1180	vssvc.exe

C:\Users\Admin\AppData\Local\Temp\1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.exe
"C:\Users\Admin\AppData\Local\Temp\1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.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:528

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1180

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

T1491

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Downloads

memory/528-55-0x00000000757A1000-0x00000000757A3000-memory.dmp

Filesize
8KB

Download
memory/528-56-0x0000000000285000-0x0000000000296000-memory.dmp

Filesize
68KB

Download
memory/528-57-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/528-58-0x0000000000296000-0x0000000000297000-memory.dmp

Filesize
4KB

Download