blackmatter | 3730e9cba4a93bc985ef7cd2368ccbf5eccd4724f514b38b20e320e5553dd08d

Resubmissions

25/03/2025, 13:12

250325-qfl42aznw9 10

25/03/2025, 13:09

25/03/2025, 13:05

25/03/2025, 13:01

25/03/2025, 12:55

25/03/2025, 12:51

05/02/2025, 11:16

16/07/2024, 08:54

Analysis

max time kernel
104s
max time network
107s
platform
windows10-ltsc_2021_x64
resource
win10ltsc2021-20250314-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20250314-enlocale:en-usos:windows10-ltsc_2021-x64system
submitted
25/03/2025, 12:55

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Report Analysis Logs

General

Target

3a7265305386f955adbeb6bd7c711f03395963ac36be82e5bb6b1d7b2034c859.exe
Size

80KB
MD5

e3269531cf93d040b08074bfb31b72a0
SHA1

45b6d89dcea02cc90ae054d72ec80a2eb1036a7e
SHA256

3a7265305386f955adbeb6bd7c711f03395963ac36be82e5bb6b1d7b2034c859
SHA512

e4de5613557ff15f23e2c28763fee6443c81351401974389e1c01cb979efc81c0ff397b85ba3fc6f0204f7c5e0c7617617130d38b441748446e72a0fbb7a12b0
SSDEEP

1536:NE+VYVYMC2F7Aoter2j1lYgpM2HT02F4mHI5PsOqy:2+G3eaj0g+2HT025Hs

Score

10^/10

blackmatter discovery ransomware upx

Malware Config

Extracted

Path

C:\QkiINTXIT.README.txt

Family

blackmatter

Ransom Note

~+ * + ' BLACK | () .-.,='``'=. - o - '=/_ \ | * | '=._ | \ `=./`, ' . '=.__.=' `=' * + Matter + O * ' . >>> What happens? Your network is encrypted, and currently not operational. We have downloaded 1TB from your fileserver. 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. >> Data leak includes 1. Full emloyeers personal data 2. Network information 3. Schemes of buildings, active project information, architect details and contracts, 4. Finance info >>> How to contact with us? 1. Download and install TOR Browser (https://www.torproject.org/). 2. Open http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/7NT6LXKC1XQHW5039BLOV. >>> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.

URLs

http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/7NT6LXKC1XQHW5039BLOV

Extracted

Family

blackmatter

Version

1.2

Signatures

BlackMatter Ransomware
BlackMatter ransomware group claims to be Darkside and REvil succesor.
ransomware blackmatter
Blackmatter family
blackmatter
Renames multiple (145) 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-1-5-21-780313508-644878201-565826771-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\QkiINTXIT.bmp"	3a7265305386f955adbeb6bd7c711f03395963ac36be82e5bb6b1d7b2034c859.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-780313508-644878201-565826771-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\QkiINTXIT.bmp"	3a7265305386f955adbeb6bd7c711f03395963ac36be82e5bb6b1d7b2034c859.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs

pid	Process
3216	3a7265305386f955adbeb6bd7c711f03395963ac36be82e5bb6b1d7b2034c859.exe
3216	3a7265305386f955adbeb6bd7c711f03395963ac36be82e5bb6b1d7b2034c859.exe
3216	3a7265305386f955adbeb6bd7c711f03395963ac36be82e5bb6b1d7b2034c859.exe
3216	3a7265305386f955adbeb6bd7c711f03395963ac36be82e5bb6b1d7b2034c859.exe
3216	3a7265305386f955adbeb6bd7c711f03395963ac36be82e5bb6b1d7b2034c859.exe
3216	3a7265305386f955adbeb6bd7c711f03395963ac36be82e5bb6b1d7b2034c859.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral14/memory/3216-0-0x0000000000A50000-0x0000000000A67000-memory.dmp	upx
behavioral14/memory/3216-199-0x0000000000A50000-0x0000000000A67000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3a7265305386f955adbeb6bd7c711f03395963ac36be82e5bb6b1d7b2034c859.exe

Modifies Control Panel 3 IoCs

defense_evasion

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-780313508-644878201-565826771-1000\Control Panel\Desktop	3a7265305386f955adbeb6bd7c711f03395963ac36be82e5bb6b1d7b2034c859.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-780313508-644878201-565826771-1000\Control Panel\Desktop\WallpaperStyle = "10"	3a7265305386f955adbeb6bd7c711f03395963ac36be82e5bb6b1d7b2034c859.exe
Key created	\REGISTRY\USER\S-1-5-21-780313508-644878201-565826771-1000\Control Panel\International	3a7265305386f955adbeb6bd7c711f03395963ac36be82e5bb6b1d7b2034c859.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3216	3a7265305386f955adbeb6bd7c711f03395963ac36be82e5bb6b1d7b2034c859.exe
3216	3a7265305386f955adbeb6bd7c711f03395963ac36be82e5bb6b1d7b2034c859.exe
3216	3a7265305386f955adbeb6bd7c711f03395963ac36be82e5bb6b1d7b2034c859.exe
3216	3a7265305386f955adbeb6bd7c711f03395963ac36be82e5bb6b1d7b2034c859.exe

Suspicious use of AdjustPrivilegeToken 17 IoCs

description	pid	Process
Token: SeBackupPrivilege	3216	3a7265305386f955adbeb6bd7c711f03395963ac36be82e5bb6b1d7b2034c859.exe
Token: SeDebugPrivilege	3216	3a7265305386f955adbeb6bd7c711f03395963ac36be82e5bb6b1d7b2034c859.exe
Token: 36	3216	3a7265305386f955adbeb6bd7c711f03395963ac36be82e5bb6b1d7b2034c859.exe
Token: SeImpersonatePrivilege	3216	3a7265305386f955adbeb6bd7c711f03395963ac36be82e5bb6b1d7b2034c859.exe
Token: SeIncBasePriorityPrivilege	3216	3a7265305386f955adbeb6bd7c711f03395963ac36be82e5bb6b1d7b2034c859.exe
Token: SeIncreaseQuotaPrivilege	3216	3a7265305386f955adbeb6bd7c711f03395963ac36be82e5bb6b1d7b2034c859.exe
Token: 33	3216	3a7265305386f955adbeb6bd7c711f03395963ac36be82e5bb6b1d7b2034c859.exe
Token: SeManageVolumePrivilege	3216	3a7265305386f955adbeb6bd7c711f03395963ac36be82e5bb6b1d7b2034c859.exe
Token: SeProfSingleProcessPrivilege	3216	3a7265305386f955adbeb6bd7c711f03395963ac36be82e5bb6b1d7b2034c859.exe
Token: SeRestorePrivilege	3216	3a7265305386f955adbeb6bd7c711f03395963ac36be82e5bb6b1d7b2034c859.exe
Token: SeSecurityPrivilege	3216	3a7265305386f955adbeb6bd7c711f03395963ac36be82e5bb6b1d7b2034c859.exe
Token: SeSystemProfilePrivilege	3216	3a7265305386f955adbeb6bd7c711f03395963ac36be82e5bb6b1d7b2034c859.exe
Token: SeTakeOwnershipPrivilege	3216	3a7265305386f955adbeb6bd7c711f03395963ac36be82e5bb6b1d7b2034c859.exe
Token: SeShutdownPrivilege	3216	3a7265305386f955adbeb6bd7c711f03395963ac36be82e5bb6b1d7b2034c859.exe
Token: SeBackupPrivilege	1480	vssvc.exe
Token: SeRestorePrivilege	1480	vssvc.exe
Token: SeAuditPrivilege	1480	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\3a7265305386f955adbeb6bd7c711f03395963ac36be82e5bb6b1d7b2034c859.exe
C:\Users\Admin\AppData\Local\Temp\3a7265305386f955adbeb6bd7c711f03395963ac36be82e5bb6b1d7b2034c859.exe bcdedit /set shutdown /r /f /t 2
1⤵
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Modifies Control Panel
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3216

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1480

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

T1491

Replay Monitor

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Downloads

C:\QkiINTXIT.README.txt

Filesize
1KB

MD5
f66968c47a64569e2281f65a95991be0

SHA1
ef9e3e80bfbea4c3021b226cb8cd00687013b8a8

SHA256
4b950c763006e7c4569df8742855cec31bf82f835bd7e2bdcb5f128db34c82bf

SHA512
cb4ace1b3e891ab100b3950c6bc133b216e91c8978a3af1ffd75617b606bb7ceb0133f44d37a30a827655e5b84b016d736a732f5f37635bb727e1a5b722cad24

Download Submit
memory/3216-0-0x0000000000A50000-0x0000000000A67000-memory.dmp

Filesize
92KB

Download
memory/3216-2-0x0000000002C50000-0x0000000002C60000-memory.dmp

Filesize
64KB

Download
memory/3216-1-0x0000000002C50000-0x0000000002C60000-memory.dmp

Filesize
64KB

Download
memory/3216-199-0x0000000000A50000-0x0000000000A67000-memory.dmp

Filesize
92KB

Download