blackmatter | 5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa

General

Target

38035325b785329e3f618b2a0b90eb75.exe
Size

78KB
MD5

38035325b785329e3f618b2a0b90eb75
SHA1

33294a6c609b6ced2acef3964d7ec34dc0101a9a
SHA256

5da8d2e1b36be0d661d276ea6523760dbe3fa4f3fdb7e32b144812ce50c483fa
SHA512

675a0defdfa3de5f54ece0297d955372480f25e8b9f27fa700d5cdc2c6ecedadc7b68cac2f8e2e452bdbab6a958593f45d3eab14d6e7bbfee472383879bd7b17
SSDEEP

1536:WnICS4ArFnRoHhcVyid9EZZoi+zQQaHYqf5O4QN:BZnmqVyq9EN+MvlZQ

Score

10^/10

blackmatter ransomware

Malware Config

Extracted

Path

C:\jvdo5eVo9.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 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/O3KTUJZRE6CB4Q1OBR >>> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.

URLs

http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/O3KTUJZRE6CB4Q1OBR

Signatures

BlackMatter Ransomware
BlackMatter ransomware group claims to be Darkside and REvil succesor.
ransomware blackmatter
Renames multiple (149) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

Sets desktop wallpaper using registry 2 TTPs 2 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\jvdo5eVo9.bmp"	38035325b785329e3f618b2a0b90eb75.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\jvdo5eVo9.bmp"	38035325b785329e3f618b2a0b90eb75.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs

pid	Process
4108	38035325b785329e3f618b2a0b90eb75.exe
4108	38035325b785329e3f618b2a0b90eb75.exe
4108	38035325b785329e3f618b2a0b90eb75.exe
4108	38035325b785329e3f618b2a0b90eb75.exe
4108	38035325b785329e3f618b2a0b90eb75.exe
4108	38035325b785329e3f618b2a0b90eb75.exe

Modifies Control Panel 3 IoCs

evasion

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Control Panel\Desktop	38035325b785329e3f618b2a0b90eb75.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Control Panel\Desktop\WallpaperStyle = "10"	38035325b785329e3f618b2a0b90eb75.exe
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Control Panel\International	38035325b785329e3f618b2a0b90eb75.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4108	38035325b785329e3f618b2a0b90eb75.exe
4108	38035325b785329e3f618b2a0b90eb75.exe
4108	38035325b785329e3f618b2a0b90eb75.exe
4108	38035325b785329e3f618b2a0b90eb75.exe

Suspicious use of AdjustPrivilegeToken 17 IoCs

description	pid	Process
Token: SeBackupPrivilege	4108	38035325b785329e3f618b2a0b90eb75.exe
Token: SeDebugPrivilege	4108	38035325b785329e3f618b2a0b90eb75.exe
Token: 36	4108	38035325b785329e3f618b2a0b90eb75.exe
Token: SeImpersonatePrivilege	4108	38035325b785329e3f618b2a0b90eb75.exe
Token: SeIncBasePriorityPrivilege	4108	38035325b785329e3f618b2a0b90eb75.exe
Token: SeIncreaseQuotaPrivilege	4108	38035325b785329e3f618b2a0b90eb75.exe
Token: 33	4108	38035325b785329e3f618b2a0b90eb75.exe
Token: SeManageVolumePrivilege	4108	38035325b785329e3f618b2a0b90eb75.exe
Token: SeProfSingleProcessPrivilege	4108	38035325b785329e3f618b2a0b90eb75.exe
Token: SeRestorePrivilege	4108	38035325b785329e3f618b2a0b90eb75.exe
Token: SeSecurityPrivilege	4108	38035325b785329e3f618b2a0b90eb75.exe
Token: SeSystemProfilePrivilege	4108	38035325b785329e3f618b2a0b90eb75.exe
Token: SeTakeOwnershipPrivilege	4108	38035325b785329e3f618b2a0b90eb75.exe
Token: SeShutdownPrivilege	4108	38035325b785329e3f618b2a0b90eb75.exe
Token: SeBackupPrivilege	4060	vssvc.exe
Token: SeRestorePrivilege	4060	vssvc.exe
Token: SeAuditPrivilege	4060	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\38035325b785329e3f618b2a0b90eb75.exe
"C:\Users\Admin\AppData\Local\Temp\38035325b785329e3f618b2a0b90eb75.exe"
1⤵
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies Control Panel
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4108

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4060

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

1

T1491

Replay Monitor

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Downloads

C:\jvdo5eVo9.README.txt

Filesize
1KB

MD5
2a2ac841d6b7515f4b1021b92cc5f072

SHA1
e48a7a2be20b978f71a92f12ada328bcfd0b89c6

SHA256
9a59566d9ef3bab7faf9abc23f25aa19218d5afa2a910144acd011a78521377e

SHA512
a7944a10f2721db3dbdf5c36e80aae057c5fc8e2aab22a8d50c4d4e6436a7e22313257dd934961db1fa5e506c39ca23600c9d3e96a463221c13b54651bd47579

Download Submit
memory/4108-0-0x00000000029D0000-0x00000000029E0000-memory.dmp

Filesize
64KB

Download
memory/4108-1-0x00000000029D0000-0x00000000029E0000-memory.dmp

Filesize
64KB

Download
memory/4108-250-0x00000000029D0000-0x00000000029E0000-memory.dmp

Filesize
64KB

Download
memory/4108-251-0x00000000029D0000-0x00000000029E0000-memory.dmp

Filesize
64KB

Download

Analysis

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