blackmatter | ccee26ea662c87a6c3171b091044282849cc8d46d4b9b9da6cf429b8114c4239

General

Target

e88479a6a059eb522d2fec40fe2e1a88.exe
Size

80KB
MD5

e88479a6a059eb522d2fec40fe2e1a88
SHA1

4bea73917d60c7b09c3f74ca2b1c80f27492b15f
SHA256

ccee26ea662c87a6c3171b091044282849cc8d46d4b9b9da6cf429b8114c4239
SHA512

40e9533188e2b76e27e095c8141851fa7dcddf85ddd686494ada2a48978ea429e6f507a0504a545c79df7dfcdd516ce162e5893704018a4a23c4fd5ae7ad9bc8
SSDEEP

1536:unICS4A79p2qFTM2HT02F4mHI5mCTXOuZr:JpOqFQ2HT025HuTXN

Score

10^/10

blackmatter ransomware

Malware Config

Extracted

Path

C:\krIQ2dkQs.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/YX6RXMC65MRX8LLQ >>> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.

URLs

http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/YX6RXMC65MRX8LLQ

Signatures

BlackMatter Ransomware
BlackMatter ransomware group claims to be Darkside and REvil succesor.
ransomware blackmatter
Renames multiple (127) 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-1-5-21-3470981204-343661084-3367201002-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\krIQ2dkQs.bmp"	e88479a6a059eb522d2fec40fe2e1a88.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\krIQ2dkQs.bmp"	e88479a6a059eb522d2fec40fe2e1a88.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs

pid	Process
2892	e88479a6a059eb522d2fec40fe2e1a88.exe
2892	e88479a6a059eb522d2fec40fe2e1a88.exe
2892	e88479a6a059eb522d2fec40fe2e1a88.exe
2892	e88479a6a059eb522d2fec40fe2e1a88.exe
2892	e88479a6a059eb522d2fec40fe2e1a88.exe
2892	e88479a6a059eb522d2fec40fe2e1a88.exe

Modifies Control Panel 2 IoCs

evasion

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Control Panel\Desktop	e88479a6a059eb522d2fec40fe2e1a88.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Control Panel\Desktop\WallpaperStyle = "10"	e88479a6a059eb522d2fec40fe2e1a88.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2892	e88479a6a059eb522d2fec40fe2e1a88.exe
2892	e88479a6a059eb522d2fec40fe2e1a88.exe
2892	e88479a6a059eb522d2fec40fe2e1a88.exe
2892	e88479a6a059eb522d2fec40fe2e1a88.exe

Suspicious use of AdjustPrivilegeToken 17 IoCs

description	pid	Process
Token: SeBackupPrivilege	2892	e88479a6a059eb522d2fec40fe2e1a88.exe
Token: SeDebugPrivilege	2892	e88479a6a059eb522d2fec40fe2e1a88.exe
Token: 36	2892	e88479a6a059eb522d2fec40fe2e1a88.exe
Token: SeImpersonatePrivilege	2892	e88479a6a059eb522d2fec40fe2e1a88.exe
Token: SeIncBasePriorityPrivilege	2892	e88479a6a059eb522d2fec40fe2e1a88.exe
Token: SeIncreaseQuotaPrivilege	2892	e88479a6a059eb522d2fec40fe2e1a88.exe
Token: 33	2892	e88479a6a059eb522d2fec40fe2e1a88.exe
Token: SeManageVolumePrivilege	2892	e88479a6a059eb522d2fec40fe2e1a88.exe
Token: SeProfSingleProcessPrivilege	2892	e88479a6a059eb522d2fec40fe2e1a88.exe
Token: SeRestorePrivilege	2892	e88479a6a059eb522d2fec40fe2e1a88.exe
Token: SeSecurityPrivilege	2892	e88479a6a059eb522d2fec40fe2e1a88.exe
Token: SeSystemProfilePrivilege	2892	e88479a6a059eb522d2fec40fe2e1a88.exe
Token: SeTakeOwnershipPrivilege	2892	e88479a6a059eb522d2fec40fe2e1a88.exe
Token: SeShutdownPrivilege	2892	e88479a6a059eb522d2fec40fe2e1a88.exe
Token: SeBackupPrivilege	2520	vssvc.exe
Token: SeRestorePrivilege	2520	vssvc.exe
Token: SeAuditPrivilege	2520	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\e88479a6a059eb522d2fec40fe2e1a88.exe
"C:\Users\Admin\AppData\Local\Temp\e88479a6a059eb522d2fec40fe2e1a88.exe"
1⤵
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies Control Panel
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2892

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2520

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:\krIQ2dkQs.README.txt

Filesize
1KB

MD5
437cb918360e1d94c6f19a85ddd428a6

SHA1
30e3c0c3aed4054285fef804ebc75dc412fcbf41

SHA256
f99625bb156ed0b20feac08c71839cc2f03bee9701e83bd60fcc4b747ba726b4

SHA512
3aac087bdcfcda772c46b208118a223f577a81277e95c73641cefb30ff6d5d50f2a7b73697927d5ca4f23ff10614a60d7867f5af0a7ccf8a5e14d9d022a3c9b7

Download Submit
memory/2892-0-0x0000000000300000-0x0000000000340000-memory.dmp

Filesize
256KB

Download

Analysis

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