blackmatter | 51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f

General

Target

51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
Size

34KB
MD5

76c242bdf600d151aceb5c09b81ed447
SHA1

f45d598dc49acc4271d38895363fe3cf1d390a54
SHA256

51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f
SHA512

35eb33b57f5ef16976b39c6dc5c7868495693f43cd7758cb7070d9dc3fdc9ac65d6fe0d828c6c974f5caf8f908b289e0b1ba8a0f58d176f9ae83356915934183
SSDEEP

768:EegeEbf2rriFVI1kggGVtSMC2F7QGIFFBMterI6ywBuO1NJ:uE+VYVYMC2F7AoterI6yR2r

Score

10^/10

blackmatter ransomware upx

Malware Config

Extracted

Path

C:\rgCpenqpA.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 17 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File renamed	C:\Users\Admin\Pictures\ImportEnter.tiff => C:\Users\Admin\Pictures\ImportEnter.tiff.rgCpenqpA	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
File renamed	C:\Users\Admin\Pictures\RepairWatch.tiff => C:\Users\Admin\Pictures\RepairWatch.tiff.rgCpenqpA	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
File opened for modification	C:\Users\Admin\Pictures\StopConnect.tif.rgCpenqpA	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
File renamed	C:\Users\Admin\Pictures\WaitClose.raw => C:\Users\Admin\Pictures\WaitClose.raw.rgCpenqpA	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
File renamed	C:\Users\Admin\Pictures\ExpandSuspend.raw => C:\Users\Admin\Pictures\ExpandSuspend.raw.rgCpenqpA	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
File opened for modification	C:\Users\Admin\Pictures\GroupCopy.tiff	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
File renamed	C:\Users\Admin\Pictures\GroupCopy.tiff => C:\Users\Admin\Pictures\GroupCopy.tiff.rgCpenqpA	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
File opened for modification	C:\Users\Admin\Pictures\GroupCopy.tiff.rgCpenqpA	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
File renamed	C:\Users\Admin\Pictures\ResizeConnect.crw => C:\Users\Admin\Pictures\ResizeConnect.crw.rgCpenqpA	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
File opened for modification	C:\Users\Admin\Pictures\ImportEnter.tiff	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
File opened for modification	C:\Users\Admin\Pictures\RepairWatch.tiff	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
File opened for modification	C:\Users\Admin\Pictures\ResizeConnect.crw.rgCpenqpA	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
File renamed	C:\Users\Admin\Pictures\StopConnect.tif => C:\Users\Admin\Pictures\StopConnect.tif.rgCpenqpA	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
File opened for modification	C:\Users\Admin\Pictures\ExpandSuspend.raw.rgCpenqpA	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
File opened for modification	C:\Users\Admin\Pictures\ImportEnter.tiff.rgCpenqpA	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
File opened for modification	C:\Users\Admin\Pictures\RepairWatch.tiff.rgCpenqpA	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
File opened for modification	C:\Users\Admin\Pictures\WaitClose.raw.rgCpenqpA	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/956-132-0x0000000000ED0000-0x0000000000EE7000-memory.dmp	upx
behavioral2/memory/956-133-0x0000000000ED0000-0x0000000000EE7000-memory.dmp	upx
behavioral2/memory/956-134-0x0000000000ED0000-0x0000000000EE7000-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-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\rgCpenqpA.bmp"	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\rgCpenqpA.bmp"	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs

pid	Process
956	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
956	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
956	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
956	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
956	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
956	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe

Modifies Control Panel 3 IoCs

evasion

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\Desktop	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\Desktop\WallpaperStyle = "10"	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
956	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
956	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
956	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
956	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe

Suspicious use of AdjustPrivilegeToken 17 IoCs

description	pid	Process
Token: SeBackupPrivilege	956	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
Token: SeDebugPrivilege	956	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
Token: 36	956	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
Token: SeImpersonatePrivilege	956	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
Token: SeIncBasePriorityPrivilege	956	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
Token: SeIncreaseQuotaPrivilege	956	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
Token: 33	956	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
Token: SeManageVolumePrivilege	956	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
Token: SeProfSingleProcessPrivilege	956	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
Token: SeRestorePrivilege	956	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
Token: SeSecurityPrivilege	956	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
Token: SeSystemProfilePrivilege	956	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
Token: SeTakeOwnershipPrivilege	956	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
Token: SeShutdownPrivilege	956	51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
Token: SeBackupPrivilege	400	vssvc.exe
Token: SeRestorePrivilege	400	vssvc.exe
Token: SeAuditPrivilege	400	vssvc.exe

C:\Users\Admin\AppData\Local\Temp\51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.exe
"C:\Users\Admin\AppData\Local\Temp\51cb81ec805a5fe9f67ab14cee4703ca83840285cc81d50761b18092bed8745f.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:956

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:400

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/956-132-0x0000000000ED0000-0x0000000000EE7000-memory.dmp

Filesize
92KB

Download
memory/956-133-0x0000000000ED0000-0x0000000000EE7000-memory.dmp

Filesize
92KB

Download
memory/956-134-0x0000000000ED0000-0x0000000000EE7000-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