blackmatter | 2e50eb85f6e271001e69c5733af95c34728893145766066c5ff8708dcc0e43b2

General

Target

RIJXROV.exe
Size

79KB
MD5

18c7c940bc6a4e778fbdf4a3e28151a8
SHA1

f3589918d71b87c7e764479b79c4a7b485cb746a
SHA256

2e50eb85f6e271001e69c5733af95c34728893145766066c5ff8708dcc0e43b2
SHA512

6e808fe882640a517c2054fdece73059c7ea3e27a946e55f41b91fd0f757dcd8c76be8f381f60f3e45449edebaa4f620b903337727607f7768543b1acec40d18

Score

10^/10

blackmatter ransomware

Malware Config

Extracted

Path

C:\YvGHBQWH8.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 data stolen? From your network was stolen 250 GB of data. If you do not contact us we will publish all your data in our blog and will send it to the biggest mass media. Blog post link: http://blackmax7su6mbwtcyo3xwtpfxpm356jjqrs34y4crcytpw7mifuedyd.onion/YdWh7oMKjT/13f1a8efc53e2fa712813f4c39147a79 >>> 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/5AZHJFLKJNPOJ4F5O5T >> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.

URLs

http://blackmax7su6mbwtcyo3xwtpfxpm356jjqrs34y4crcytpw7mifuedyd.onion/YdWh7oMKjT/13f1a8efc53e2fa712813f4c39147a79

http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/5AZHJFLKJNPOJ4F5O5T

Signatures

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

Modifies extensions of user files 10 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\DisableDebug.tiff.YvGHBQWH8	RIJXROV.exe
File renamed	C:\Users\Admin\Pictures\RepairSet.crw => C:\Users\Admin\Pictures\RepairSet.crw.YvGHBQWH8	RIJXROV.exe
File renamed	C:\Users\Admin\Pictures\AssertCopy.tiff => C:\Users\Admin\Pictures\AssertCopy.tiff.YvGHBQWH8	RIJXROV.exe
File renamed	C:\Users\Admin\Pictures\ConvertToUpdate.raw => C:\Users\Admin\Pictures\ConvertToUpdate.raw.YvGHBQWH8	RIJXROV.exe
File opened for modification	C:\Users\Admin\Pictures\ConvertToUpdate.raw.YvGHBQWH8	RIJXROV.exe
File opened for modification	C:\Users\Admin\Pictures\DisableDebug.tiff	RIJXROV.exe
File renamed	C:\Users\Admin\Pictures\DisableDebug.tiff => C:\Users\Admin\Pictures\DisableDebug.tiff.YvGHBQWH8	RIJXROV.exe
File opened for modification	C:\Users\Admin\Pictures\RepairSet.crw.YvGHBQWH8	RIJXROV.exe
File opened for modification	C:\Users\Admin\Pictures\AssertCopy.tiff	RIJXROV.exe
File opened for modification	C:\Users\Admin\Pictures\AssertCopy.tiff.YvGHBQWH8	RIJXROV.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-1-5-21-1669990088-476967504-438132596-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\YvGHBQWH8.bmp"	RIJXROV.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\YvGHBQWH8.bmp"	RIJXROV.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs

pid	Process
1960	RIJXROV.exe
1960	RIJXROV.exe
1960	RIJXROV.exe
1960	RIJXROV.exe
1960	RIJXROV.exe
1960	RIJXROV.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies Control Panel 3 IoCs

evasion

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000\Control Panel\International	RIJXROV.exe
Key created	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000\Control Panel\Desktop	RIJXROV.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000\Control Panel\Desktop\WallpaperStyle = "10"	RIJXROV.exe

Modifies registry class 20 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0	splwow64.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff	splwow64.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02	splwow64.exe
Key created	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg	splwow64.exe
Key created	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags	splwow64.exe
Key created	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell	splwow64.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f4225481e03947bc34db131e946b44c8dd50000	splwow64.exe
Key created	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0	splwow64.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff	splwow64.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 9e0000001a00eebbfe23000010007db10d7bd29c934a973346cc89022e7c00002a0000000000efbe000000200000000000000000000000000000000000000000000000000100000020002a0000000000efbe7e47b3fbe4c93b4ba2bad3f5d3cd46f98207ba827a5b6945b5d7ec83085f08cc20002a0000000000efbe000000200000000000000000000000000000000000000000000000000100000020000000	splwow64.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\NodeSlot = "1"	splwow64.exe
Key created	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1	splwow64.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\TV_TopViewVersion = "0"	splwow64.exe
Key created	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	splwow64.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = ffffffff	splwow64.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\TV_FolderType = "{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}"	splwow64.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\TV_TopViewID = "{82BA0782-5B7A-4569-B5D7-EC83085F08CC}"	splwow64.exe
Key created	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000_Classes\Local Settings	splwow64.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	splwow64.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	splwow64.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
1728	NOTEPAD.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1960	RIJXROV.exe
1960	RIJXROV.exe
1960	RIJXROV.exe
1960	RIJXROV.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
692	splwow64.exe

Suspicious use of AdjustPrivilegeToken 17 IoCs

description	pid	Process
Token: SeBackupPrivilege	1960	RIJXROV.exe
Token: SeDebugPrivilege	1960	RIJXROV.exe
Token: 36	1960	RIJXROV.exe
Token: SeImpersonatePrivilege	1960	RIJXROV.exe
Token: SeIncBasePriorityPrivilege	1960	RIJXROV.exe
Token: SeIncreaseQuotaPrivilege	1960	RIJXROV.exe
Token: 33	1960	RIJXROV.exe
Token: SeManageVolumePrivilege	1960	RIJXROV.exe
Token: SeProfSingleProcessPrivilege	1960	RIJXROV.exe
Token: SeRestorePrivilege	1960	RIJXROV.exe
Token: SeSecurityPrivilege	1960	RIJXROV.exe
Token: SeSystemProfilePrivilege	1960	RIJXROV.exe
Token: SeTakeOwnershipPrivilege	1960	RIJXROV.exe
Token: SeShutdownPrivilege	1960	RIJXROV.exe
Token: SeBackupPrivilege	1320	vssvc.exe
Token: SeRestorePrivilege	1320	vssvc.exe
Token: SeAuditPrivilege	1320	vssvc.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
692	splwow64.exe
692	splwow64.exe
692	splwow64.exe
692	splwow64.exe
692	splwow64.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1960 wrote to memory of 1728	1960	RIJXROV.exe	37
PID 1960 wrote to memory of 1728	1960	RIJXROV.exe	37
PID 1960 wrote to memory of 1728	1960	RIJXROV.exe	37
PID 1960 wrote to memory of 1728	1960	RIJXROV.exe	37
PID 1728 wrote to memory of 692	1728	NOTEPAD.EXE	38
PID 1728 wrote to memory of 692	1728	NOTEPAD.EXE	38
PID 1728 wrote to memory of 692	1728	NOTEPAD.EXE	38
PID 1728 wrote to memory of 692	1728	NOTEPAD.EXE	38

C:\Users\Admin\AppData\Local\Temp\RIJXROV.exe
"C:\Users\Admin\AppData\Local\Temp\RIJXROV.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
- Suspicious use of WriteProcessMemory
PID:1960
- C:\Windows\SysWOW64\NOTEPAD.EXE
  "C:\Windows\system32\NOTEPAD.EXE" /p C:\YvGHBQWH8.README.txt
  2⤵
  - Opens file in notepad (likely ransom note)
  - Suspicious use of WriteProcessMemory
  PID:1728
- - C:\Windows\splwow64.exe
    C:\Windows\splwow64.exe 12288
    3⤵
    - Modifies registry class
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:692

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1320

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

1

T1491

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Downloads

memory/692-60-0x000007FEFBEF1000-0x000007FEFBEF3000-memory.dmp

Filesize
8KB

Download
memory/692-61-0x00000000040C0000-0x00000000040C1000-memory.dmp

Filesize
4KB

Download
memory/1960-52-0x00000000754C1000-0x00000000754C3000-memory.dmp

Filesize
8KB

Download
memory/1960-53-0x0000000000A65000-0x0000000000A76000-memory.dmp

Filesize
68KB

Download
memory/1960-54-0x0000000000A60000-0x0000000000A61000-memory.dmp

Filesize
4KB

Download
memory/1960-55-0x0000000000A76000-0x0000000000A77000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads