blackmatter | 0bdce4d960e8b9537fbdcb4a70838be86163f355ba9f4344fd4982536924f27e

General

Target

9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe
Size

95KB
MD5

757139e76fae876ae50dd2c3ac11d5d8
SHA1

1c150493014d29c1f8a51e397e527f7d7c1476c7
SHA256

9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58
SHA512

852febe5dc991fa6dc5ff994b2de18548e98a2f53de903a480ed871d9d25413159b167a3c0ff39175bbf7c339604bb1eccc2f9425415ab16089bc56e3e998974
SSDEEP

1536:5UICS4ADkFAztzRyxoWtBErqylVxn1fkGzyKJtM5w1w0:NBkwtdyxoUH4Blkij1

Score

10^/10

blackmatter ransomware

Malware Config

Extracted

Path

\Device\HarddiskVolume1\RiFSoaFS8.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 large amount 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. >>> 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/U6H6RKDF6W3B8XOWL >> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.

URLs

http://supp24maprinktc7uizgfyqhisx7lkszb6ogh6lwdzpac23w3mh4tvyd.onion/U6H6RKDF6W3B8XOWL

Signatures

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

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

description	ioc	Process
File opened (read-only)	\??\Z:	9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.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-1-5-21-1230210488-3096403634-4129516247-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\RiFSoaFS8.bmp"	9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1230210488-3096403634-4129516247-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\RiFSoaFS8.bmp"	9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs

pid	Process
3024	9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe
3024	9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe
3024	9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe
3024	9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe
3024	9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe
3024	9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe

Modifies Control Panel 3 IoCs

evasion

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1230210488-3096403634-4129516247-1000\Control Panel\International	9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe
Key created	\REGISTRY\USER\S-1-5-21-1230210488-3096403634-4129516247-1000\Control Panel\Desktop	9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1230210488-3096403634-4129516247-1000\Control Panel\Desktop\WallpaperStyle = "10"	9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.RiFSoaFS8	9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.RiFSoaFS8\ = "RiFSoaFS8"	9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\RiFSoaFS8\DefaultIcon	9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\RiFSoaFS8	9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\RiFSoaFS8\DefaultIcon\ = "C:\\ProgramData\\RiFSoaFS8.ico"	9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3024	9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe
3024	9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe
3024	9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe
3024	9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe

Suspicious use of AdjustPrivilegeToken 17 IoCs

description	pid	Process
Token: SeBackupPrivilege	3024	9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe
Token: SeDebugPrivilege	3024	9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe
Token: 36	3024	9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe
Token: SeImpersonatePrivilege	3024	9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe
Token: SeIncBasePriorityPrivilege	3024	9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe
Token: SeIncreaseQuotaPrivilege	3024	9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe
Token: 33	3024	9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe
Token: SeManageVolumePrivilege	3024	9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe
Token: SeProfSingleProcessPrivilege	3024	9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe
Token: SeRestorePrivilege	3024	9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe
Token: SeSecurityPrivilege	3024	9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe
Token: SeSystemProfilePrivilege	3024	9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe
Token: SeTakeOwnershipPrivilege	3024	9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe
Token: SeShutdownPrivilege	3024	9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe
Token: SeBackupPrivilege	4456	vssvc.exe
Token: SeRestorePrivilege	4456	vssvc.exe
Token: SeAuditPrivilege	4456	vssvc.exe

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe
"C:\Users\Admin\AppData\Local\Temp\9bae897c19f237c22b6bdc024df27455e739be24bed07ef0d409f2df87eeda58.exe"
1⤵
- Enumerates connected drives
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3024

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4456

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:588

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

1

T1491

Replay Monitor

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Downloads

\Device\HarddiskVolume1\RiFSoaFS8.README.txt

Filesize
1KB

MD5
0842767cb65fc2fd8159fe4f2b718945

SHA1
bff9ec531535e40e4f0f8365add7430d813ce035

SHA256
ce9645e29fd75e2b99ad49c64d40a1fb8a5412d8a9a8cd438a64664cfed539e7

SHA512
367d25b261a866a94d080e388b410485232cc00aee6862b01e164dbf0dac7f0182bf741aee95e5b7786dc6668e29fc604db3d12c17f802dc22361591dd435c7f

Download Submit
memory/3024-2-0x0000000003490000-0x00000000034A0000-memory.dmp

Filesize
64KB

Download
memory/3024-1-0x0000000003490000-0x00000000034A0000-memory.dmp

Filesize
64KB

Download
memory/3024-0-0x0000000003490000-0x00000000034A0000-memory.dmp

Filesize
64KB

Download

Analysis

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