blackmatter | bf9511517f610387d714553bed6ff59d55c21cd0aa18ae00714585e699a332a3

Analysis

max time kernel
158s
max time network
134s
platform
windows7_x64
resource
win7-en-20211014
submitted
22-11-2021 13:14

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General

Target

2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
Size

79KB
MD5

f1c260c31b9d3f9ff54a142d508ec602
SHA1

6b25c80e8b2dca94ea6b6a95745a496ec0bcabd3
SHA256

2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c
SHA512

9412a185d008ded02e2061cd4e998222071923f6260ecdcc9a3f1969ea2aa89a9493866e13450d82b8ab390ec78b24d7ba82a6e2618d11cf27d67f43a7d39d6a

Score

10^/10

blackmatter ransomware suricata

Malware Config

Extracted

Path

C:\6amPnJyPq.README.txt

Family

blackmatter

Ransom Note

~+ * + ' BLACK | () .-.,='``'=. - o - '=/_ \ | * | '=._ | \ `=./`, ' . '=.__.=' `=' * + Matter + O * ' . >>> What happens? Your security perimeter was BREACHED and all files on your critically important servers and hosts were completely ENCRYPTED. Also we has DOWNLOADED your most SENSITIVE Data We have collected the most important info such as: -Accounting files, Financial documents, Banking and Billing statements, HR documents, Payrolls, Credit Cards -We have your Backups, Legal Documents, Personal IDs, Investigations Reports, Audit Reports, Revenues reports -Confidential Agreements, NDA, Corporate Contracts, WorkFiles, Drawings, Clients and Employees contacts and other personal information -Also we have your Private Correspondence .msg files and a lot of other Sensitive info. https://prnt.sc/1o6e5a2 https://prnt.sc/1o6ei7g https://prnt.sc/1o6exr8 https://prnt.sc/1o6fbxu https://prnt.sc/1o6fvkn >>> What data stolen? From your network was stolen 80 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: %BLOG_URL% >>> 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/EBVCVJNCPM6A3NKJ >> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.

URLs

https://prnt.sc/1o6e5a2

https://prnt.sc/1o6ei7g

https://prnt.sc/1o6exr8

https://prnt.sc/1o6fbxu

https://prnt.sc/1o6fvkn

http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/EBVCVJNCPM6A3NKJ

Signatures

BlackMatter Ransomware
BlackMatter ransomware group claims to be Darkside and REvil succesor.
ransomware blackmatter
suricata: ET MALWARE BlackMatter CnC Domain in DNS Lookup (mojobiden .com)
suricata: ET MALWARE BlackMatter CnC Domain in DNS Lookup (mojobiden .com)
suricata

Modifies extensions of user files 18 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe

description	ioc	process
File opened for modification	C:\Users\Admin\Pictures\CompareRestart.tif.6amPnJyPq	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
File opened for modification	C:\Users\Admin\Pictures\UnpublishResume.png.6amPnJyPq	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
File opened for modification	C:\Users\Admin\Pictures\GrantOpen.raw.6amPnJyPq	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
File opened for modification	C:\Users\Admin\Pictures\PopUnpublish.tif.6amPnJyPq	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
File opened for modification	C:\Users\Admin\Pictures\SuspendClose.raw.6amPnJyPq	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
File renamed	C:\Users\Admin\Pictures\UseDismount.tif => C:\Users\Admin\Pictures\UseDismount.tif.6amPnJyPq	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
File opened for modification	C:\Users\Admin\Pictures\UseDismount.tif.6amPnJyPq	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
File renamed	C:\Users\Admin\Pictures\DisconnectRegister.crw => C:\Users\Admin\Pictures\DisconnectRegister.crw.6amPnJyPq	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
File opened for modification	C:\Users\Admin\Pictures\DisconnectRegister.crw.6amPnJyPq	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
File renamed	C:\Users\Admin\Pictures\GrantOpen.raw => C:\Users\Admin\Pictures\GrantOpen.raw.6amPnJyPq	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
File renamed	C:\Users\Admin\Pictures\CompareRestart.tif => C:\Users\Admin\Pictures\CompareRestart.tif.6amPnJyPq	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
File renamed	C:\Users\Admin\Pictures\MeasureStop.raw => C:\Users\Admin\Pictures\MeasureStop.raw.6amPnJyPq	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
File renamed	C:\Users\Admin\Pictures\PopUnpublish.tif => C:\Users\Admin\Pictures\PopUnpublish.tif.6amPnJyPq	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
File renamed	C:\Users\Admin\Pictures\SuspendClose.raw => C:\Users\Admin\Pictures\SuspendClose.raw.6amPnJyPq	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
File renamed	C:\Users\Admin\Pictures\UnpublishResume.png => C:\Users\Admin\Pictures\UnpublishResume.png.6amPnJyPq	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
File renamed	C:\Users\Admin\Pictures\FindUnregister.png => C:\Users\Admin\Pictures\FindUnregister.png.6amPnJyPq	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
File opened for modification	C:\Users\Admin\Pictures\FindUnregister.png.6amPnJyPq	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
File opened for modification	C:\Users\Admin\Pictures\MeasureStop.raw.6amPnJyPq	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe

Sets desktop wallpaper using registry 2 TTPs 2 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

Processes:

2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\6amPnJyPq.bmp"	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\6amPnJyPq.bmp"	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs

Processes:

2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe

pid	process
556	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
556	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
556	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
556	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
556	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
556	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.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

Processes:

2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Control Panel\Desktop\WallpaperStyle = "10"	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Control Panel\International	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Control Panel\Desktop	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe

Modifies registry class 20 IoCs

Processes:

splwow64.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	splwow64.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f4225481e03947bc34db131e946b44c8dd50000	splwow64.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff	splwow64.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	splwow64.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 9e0000001a00eebbfe23000010007db10d7bd29c934a973346cc89022e7c00002a0000000000efbe000000200000000000000000000000000000000000000000000000000100000020002a0000000000efbe7e47b3fbe4c93b4ba2bad3f5d3cd46f98207ba827a5b6945b5d7ec83085f08cc20002a0000000000efbe000000200000000000000000000000000000000000000000000000000100000020000000	splwow64.exe
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0	splwow64.exe
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_Classes\Local Settings	splwow64.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff	splwow64.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\NodeSlot = "1"	splwow64.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = ffffffff	splwow64.exe
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags	splwow64.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\TV_TopViewVersion = "0"	splwow64.exe
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell	splwow64.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	splwow64.exe
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0	splwow64.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02	splwow64.exe
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg	splwow64.exe
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1	splwow64.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000_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-1-5-21-2955169046-2371869340-1800780948-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\TV_TopViewID = "{82BA0782-5B7A-4569-B5D7-EC83085F08CC}"	splwow64.exe

Opens file in notepad (likely ransom note) 1 IoCs
ransomware

Processes:

NOTEPAD.EXE

pid process

1156 NOTEPAD.EXE

pid	process
1156	NOTEPAD.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe

pid	process
556	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
556	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
556	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
556	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

splwow64.exe

pid process

1464 splwow64.exe

pid	process
1464	splwow64.exe

Suspicious use of AdjustPrivilegeToken 17 IoCs

Processes:

2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exevssvc.exe

description	pid	process
Token: SeBackupPrivilege	556	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
Token: SeDebugPrivilege	556	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
Token: 36	556	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
Token: SeImpersonatePrivilege	556	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
Token: SeIncBasePriorityPrivilege	556	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
Token: SeIncreaseQuotaPrivilege	556	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
Token: 33	556	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
Token: SeManageVolumePrivilege	556	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
Token: SeProfSingleProcessPrivilege	556	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
Token: SeRestorePrivilege	556	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
Token: SeSecurityPrivilege	556	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
Token: SeSystemProfilePrivilege	556	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
Token: SeTakeOwnershipPrivilege	556	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
Token: SeShutdownPrivilege	556	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
Token: SeBackupPrivilege	780	vssvc.exe
Token: SeRestorePrivilege	780	vssvc.exe
Token: SeAuditPrivilege	780	vssvc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

splwow64.exe

pid process

1464 splwow64.exe

pid	process
1464	splwow64.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exeNOTEPAD.EXE

description	pid	process	target process
PID 556 wrote to memory of 1156	556	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe	NOTEPAD.EXE
PID 556 wrote to memory of 1156	556	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe	NOTEPAD.EXE
PID 556 wrote to memory of 1156	556	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe	NOTEPAD.EXE
PID 556 wrote to memory of 1156	556	2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe	NOTEPAD.EXE
PID 1156 wrote to memory of 1464	1156	NOTEPAD.EXE	splwow64.exe
PID 1156 wrote to memory of 1464	1156	NOTEPAD.EXE	splwow64.exe
PID 1156 wrote to memory of 1464	1156	NOTEPAD.EXE	splwow64.exe
PID 1156 wrote to memory of 1464	1156	NOTEPAD.EXE	splwow64.exe

C:\Users\Admin\AppData\Local\Temp\2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.exe
"C:\Users\Admin\AppData\Local\Temp\2466fca0e29b06c78ffa8a44193fb58c30e6bec4e54bbef8e6622349b95cce4c.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:556

C:\Windows\SysWOW64\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" /p C:\6amPnJyPq.README.txt
2⤵
- Opens file in notepad (likely ransom note)
- Suspicious use of WriteProcessMemory
PID:1156

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
3⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:1464

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:780

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Defacement

T1491

Replay Monitor

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Downloads

C:\6amPnJyPq.README.txt
MD5
b920836834910a56ea82efc009b2d4ce

SHA1
a5d1b656b5ab0ab51357afe4c68619f706a9a7c2

SHA256
d6af899e20548251735c7a379d4d6067b16c4d8b42d8c5c2960576d1890058cc

SHA512
e914574fe9d28e0e90eb9ba49f085c39f8c65a458778251845ccd5b5a6a1e30d35b181a6e70c8844de0552a9e010a6b43c3f7b0472eb8e6db1a2507fc8cd01e7

Download Submit
memory/556-55-0x00000000754A1000-0x00000000754A3000-memory.dmp

Filesize
8KB

Download
memory/556-56-0x00000000001F5000-0x0000000000206000-memory.dmp

Filesize
68KB

Download
memory/556-57-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

Download
memory/556-58-0x0000000000206000-0x0000000000207000-memory.dmp

Filesize
4KB

Download
memory/1156-59-0x0000000000000000-mapping.dmp

Download
memory/1464-62-0x0000000000000000-mapping.dmp

Download
memory/1464-63-0x000007FEFBD11000-0x000007FEFBD13000-memory.dmp

Filesize
8KB

Download
memory/1464-64-0x00000000040C0000-0x00000000040C1000-memory.dmp

Filesize
4KB

Download