blackmatter | 8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac

Analysis

max time kernel
120s
max time network
145s
platform
windows10_x64
resource
win10-en-20211014
submitted
03-11-2021 13:58

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General

Target

8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
Size

5.3MB
MD5

6bd9bcccf3b918b5b1b7d554f82c2fdf
SHA1

06cadd71039666315102aa5e46f52c45bec453a8
SHA256

8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac
SHA512

c74a0c90f5c6e1f99f1aad0729b2fdb22e616d3070dca0852bc7f2c12b30703206f7bf171ef9e19807d7e9a9788cbc8416fb142fbdcd3625bc22c42acb73b176

Score

10^/10

blackmatter 5791ae39aeab40b5e8e33d8dce465877 ransomware suricata vmprotect

Malware Config

Extracted

Path

\??\Z:\WRLMMTHME.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 50 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/LEOYRMQLSRHFGFGYWF2T5 >> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.

URLs

http://supp24maprinktc7uizgfyqhisx7lkszb6ogh6lwdzpac23w3mh4tvyd.onion/LEOYRMQLSRHFGFGYWF2T5

Extracted

Family

blackmatter

Version

2.0

Botnet

5791ae39aeab40b5e8e33d8dce465877

Attributes

attempt_auth
false
create_mutex
true
encrypt_network_shares
true
exfiltrate
false
mount_volumes
true

rsa_pubkey.base64

aes.base64

Signatures

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

Modifies extensions of user files 32 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File renamed	C:\Users\Admin\Pictures\SelectReset.tiff => C:\Users\Admin\Pictures\SelectReset.tiff.WRLMMTHME	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
File opened for modification	C:\Users\Admin\Pictures\SplitStop.png.WRLMMTHME	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
File opened for modification	C:\Users\Admin\Pictures\StepRequest.tiff	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
File opened for modification	C:\Users\Admin\Pictures\SubmitInstall.crw.WRLMMTHME	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
File opened for modification	C:\Users\Admin\Pictures\WriteExit.raw.WRLMMTHME	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
File opened for modification	C:\Users\Admin\Pictures\CloseUnpublish.tif.WRLMMTHME	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
File renamed	C:\Users\Admin\Pictures\GroupBackup.raw => C:\Users\Admin\Pictures\GroupBackup.raw.WRLMMTHME	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
File renamed	C:\Users\Admin\Pictures\RegisterLock.tiff => C:\Users\Admin\Pictures\RegisterLock.tiff.WRLMMTHME	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
File opened for modification	C:\Users\Admin\Pictures\SelectReset.tiff.WRLMMTHME	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
File renamed	C:\Users\Admin\Pictures\SplitStop.png => C:\Users\Admin\Pictures\SplitStop.png.WRLMMTHME	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
File renamed	C:\Users\Admin\Pictures\ClearEnable.tiff => C:\Users\Admin\Pictures\ClearEnable.tiff.WRLMMTHME	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
File renamed	C:\Users\Admin\Pictures\LimitImport.tif => C:\Users\Admin\Pictures\LimitImport.tif.WRLMMTHME	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
File renamed	C:\Users\Admin\Pictures\SubmitInstall.crw => C:\Users\Admin\Pictures\SubmitInstall.crw.WRLMMTHME	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
File renamed	C:\Users\Admin\Pictures\WriteExit.raw => C:\Users\Admin\Pictures\WriteExit.raw.WRLMMTHME	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
File opened for modification	C:\Users\Admin\Pictures\ApproveEnter.png.WRLMMTHME	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
File renamed	C:\Users\Admin\Pictures\StepRequest.tiff => C:\Users\Admin\Pictures\StepRequest.tiff.WRLMMTHME	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
File renamed	C:\Users\Admin\Pictures\ApproveEnter.png => C:\Users\Admin\Pictures\ApproveEnter.png.WRLMMTHME	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
File renamed	C:\Users\Admin\Pictures\InstallTest.raw => C:\Users\Admin\Pictures\InstallTest.raw.WRLMMTHME	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
File opened for modification	C:\Users\Admin\Pictures\RegisterLock.tiff.WRLMMTHME	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
File renamed	C:\Users\Admin\Pictures\ResolveTrace.crw => C:\Users\Admin\Pictures\ResolveTrace.crw.WRLMMTHME	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
File opened for modification	C:\Users\Admin\Pictures\GroupBackup.raw.WRLMMTHME	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
File opened for modification	C:\Users\Admin\Pictures\RegisterLock.tiff	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
File opened for modification	C:\Users\Admin\Pictures\ResolveTrace.crw.WRLMMTHME	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
File opened for modification	C:\Users\Admin\Pictures\SelectReset.tiff	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
File opened for modification	C:\Users\Admin\Pictures\SplitWrite.raw.WRLMMTHME	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
File renamed	C:\Users\Admin\Pictures\CloseUnpublish.tif => C:\Users\Admin\Pictures\CloseUnpublish.tif.WRLMMTHME	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
File opened for modification	C:\Users\Admin\Pictures\InstallTest.raw.WRLMMTHME	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
File renamed	C:\Users\Admin\Pictures\SplitWrite.raw => C:\Users\Admin\Pictures\SplitWrite.raw.WRLMMTHME	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
File opened for modification	C:\Users\Admin\Pictures\ClearEnable.tiff	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
File opened for modification	C:\Users\Admin\Pictures\ClearEnable.tiff.WRLMMTHME	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
File opened for modification	C:\Users\Admin\Pictures\LimitImport.tif.WRLMMTHME	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
File opened for modification	C:\Users\Admin\Pictures\StepRequest.tiff.WRLMMTHME	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe

VMProtect packed file 1 IoCs

Detects executables packed with VMProtect commercial packer.

vmprotect

resource	yara_rule
behavioral2/memory/1200-119-0x0000000000FA0000-0x0000000001833000-memory.dmp	vmprotect

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:	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.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-1-5-21-941723256-3451054534-3089625102-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\WRLMMTHME.bmp"	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\WRLMMTHME.bmp"	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs

pid	Process
1200	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
1200	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
1200	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
1200	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
1200	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
1200	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe

Modifies Control Panel 3 IoCs

evasion

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Control Panel\Desktop	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Control Panel\Desktop\WallpaperStyle = "10"	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
Key created	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Control Panel\International	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1200	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
1200	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
1200	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
1200	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
1200	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
1200	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe

Suspicious use of AdjustPrivilegeToken 17 IoCs

description	pid	Process
Token: SeBackupPrivilege	1200	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
Token: SeDebugPrivilege	1200	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
Token: 36	1200	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
Token: SeImpersonatePrivilege	1200	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
Token: SeIncBasePriorityPrivilege	1200	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
Token: SeIncreaseQuotaPrivilege	1200	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
Token: 33	1200	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
Token: SeManageVolumePrivilege	1200	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
Token: SeProfSingleProcessPrivilege	1200	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
Token: SeRestorePrivilege	1200	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
Token: SeSecurityPrivilege	1200	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
Token: SeSystemProfilePrivilege	1200	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
Token: SeTakeOwnershipPrivilege	1200	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
Token: SeShutdownPrivilege	1200	8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
Token: SeBackupPrivilege	352	vssvc.exe
Token: SeRestorePrivilege	352	vssvc.exe
Token: SeAuditPrivilege	352	vssvc.exe

C:\Users\Admin\AppData\Local\Temp\8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.exe
"C:\Users\Admin\AppData\Local\Temp\8323fdfda08300c691d330badec2607ea050cc10ee39934faeebedf3877df3ac.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:1200

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:352

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

T1491

Replay Monitor

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Downloads

memory/1200-119-0x0000000000FA0000-0x0000000001833000-memory.dmp

Filesize
8.6MB

Download
memory/1200-121-0x0000000000BE0000-0x0000000000BE1000-memory.dmp

Filesize
4KB

Download
memory/1200-122-0x00000000036F3000-0x00000000036F5000-memory.dmp

Filesize
8KB

Download
memory/1200-123-0x00000000036F0000-0x00000000036F1000-memory.dmp

Filesize
4KB

Download