blackmatter | 8561226f674aeb4abc1b9910ddc4855ac8ac2fcd4f5face1f84e34878ac98afc

Analysis

max time kernel
124s
max time network
133s
platform
windows10_x64
resource
win10-en-20211104
submitted
23-11-2021 10:31

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General

Target

6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
Size

71KB
MD5

10aa058a3ac49e016cad7987b8e09886
SHA1

cca6682330a819592c3b1ea0448ceb4e141593dc
SHA256

6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db
SHA512

f115fb62b1ca5e18f6340d42ff4393e2b175917312ae1cc14e7a6a9322cf8adaf22457bc8213e2baafdc2cb19d5db1e5a9c003155cbf142d5a08604495e22f6e

Score

10^/10

blackmatter ransomware suricata

Malware Config

Extracted

Path

C:\eeWDzMyD5.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 500 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://supp24maprinktc7uizgfyqhisx7lkszb6ogh6lwdzpac23w3mh4tvyd.onion/OYPF561W4U8HVA0NLVCKJCZB >> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.

URLs

http://supp24maprinktc7uizgfyqhisx7lkszb6ogh6lwdzpac23w3mh4tvyd.onion/OYPF561W4U8HVA0NLVCKJCZB

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 14 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe

description	ioc	process
File opened for modification	C:\Users\Admin\Pictures\ConfirmJoin.raw.eeWDzMyD5	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
File renamed	C:\Users\Admin\Pictures\SearchHide.tif => C:\Users\Admin\Pictures\SearchHide.tif.eeWDzMyD5	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
File renamed	C:\Users\Admin\Pictures\CloseEdit.raw => C:\Users\Admin\Pictures\CloseEdit.raw.eeWDzMyD5	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
File renamed	C:\Users\Admin\Pictures\ConfirmJoin.raw => C:\Users\Admin\Pictures\ConfirmJoin.raw.eeWDzMyD5	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
File opened for modification	C:\Users\Admin\Pictures\SearchHide.tif.eeWDzMyD5	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
File renamed	C:\Users\Admin\Pictures\SyncExit.raw => C:\Users\Admin\Pictures\SyncExit.raw.eeWDzMyD5	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
File renamed	C:\Users\Admin\Pictures\BlockPush.tif => C:\Users\Admin\Pictures\BlockPush.tif.eeWDzMyD5	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
File opened for modification	C:\Users\Admin\Pictures\CloseEdit.raw.eeWDzMyD5	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
File renamed	C:\Users\Admin\Pictures\InvokeStart.crw => C:\Users\Admin\Pictures\InvokeStart.crw.eeWDzMyD5	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
File opened for modification	C:\Users\Admin\Pictures\InvokeStart.crw.eeWDzMyD5	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
File renamed	C:\Users\Admin\Pictures\UnpublishRequest.raw => C:\Users\Admin\Pictures\UnpublishRequest.raw.eeWDzMyD5	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
File opened for modification	C:\Users\Admin\Pictures\UnpublishRequest.raw.eeWDzMyD5	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
File opened for modification	C:\Users\Admin\Pictures\BlockPush.tif.eeWDzMyD5	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
File opened for modification	C:\Users\Admin\Pictures\SyncExit.raw.eeWDzMyD5	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe

Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.

Query Registry
T1012

Peripheral Device Discovery
T1120

System Information Discovery
T1082

Processes:

6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe

description ioc process

File opened (read-only) \??\Z: 6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe

description	ioc	process
File opened (read-only)	\??\Z:	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe

Sets desktop wallpaper using registry 2 TTPs 2 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

Processes:

6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\eeWDzMyD5.bmp"	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\eeWDzMyD5.bmp"	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs

Processes:

6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe

pid	process
4084	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
4084	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
4084	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
4084	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
4084	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
4084	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe

Modifies Control Panel 3 IoCs

evasion

Processes:

6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Control Panel\International	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
Key created	\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Control Panel\Desktop	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Control Panel\Desktop\WallpaperStyle = "10"	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe

pid	process
4084	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
4084	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
4084	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
4084	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe

Suspicious use of AdjustPrivilegeToken 17 IoCs

Processes:

6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exevssvc.exe

description	pid	process
Token: SeBackupPrivilege	4084	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
Token: SeDebugPrivilege	4084	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
Token: 36	4084	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
Token: SeImpersonatePrivilege	4084	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
Token: SeIncBasePriorityPrivilege	4084	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
Token: SeIncreaseQuotaPrivilege	4084	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
Token: 33	4084	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
Token: SeManageVolumePrivilege	4084	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
Token: SeProfSingleProcessPrivilege	4084	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
Token: SeRestorePrivilege	4084	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
Token: SeSecurityPrivilege	4084	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
Token: SeSystemProfilePrivilege	4084	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
Token: SeTakeOwnershipPrivilege	4084	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
Token: SeShutdownPrivilege	4084	6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
Token: SeBackupPrivilege	916	vssvc.exe
Token: SeRestorePrivilege	916	vssvc.exe
Token: SeAuditPrivilege	916	vssvc.exe

C:\Users\Admin\AppData\Local\Temp\6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe
"C:\Users\Admin\AppData\Local\Temp\6d4712df42ad0982041ef0e2e109ab5718b43830f2966bd9207a7fac3af883db.exe"
1⤵
- Modifies extensions of user files
- Enumerates connected drives
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies Control Panel
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4084

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:916

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Defacement

T1491

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Downloads

memory/4084-118-0x00000000027C3000-0x00000000027C5000-memory.dmp

Filesize
8KB

Download
memory/4084-119-0x00000000027C0000-0x00000000027C1000-memory.dmp

Filesize
4KB

Download