Malware Analysis Report

2024-10-16 03:21

Sample ID 231219-1yjfzaggg2
Target b07ff2183904731e4905b1bc1e23d24e
SHA256 3a03530c732ebe53cdd7c17bee0988896d36c2b632dbd6118613697c2af82117
Tags
blackmatter ransomware
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

3a03530c732ebe53cdd7c17bee0988896d36c2b632dbd6118613697c2af82117

Threat Level: Known bad

The file b07ff2183904731e4905b1bc1e23d24e was found to be: Known bad.

Malicious Activity Summary

blackmatter ransomware

BlackMatter Ransomware

Renames multiple (135) files with added filename extension

Renames multiple (152) files with added filename extension

Sets desktop wallpaper using registry

Suspicious use of NtSetInformationThreadHideFromDebugger

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Uses Volume Shadow Copy service COM API

Modifies Control Panel

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-19 22:03

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-19 22:03

Reported

2023-12-20 19:23

Platform

win7-20231215-en

Max time kernel

117s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe"

Signatures

BlackMatter Ransomware

ransomware blackmatter

Renames multiple (152) files with added filename extension

ransomware

Sets desktop wallpaper using registry

ransomware
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\5XCNh4eNc.bmp" C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\5XCNh4eNc.bmp" C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A

Modifies Control Panel

evasion
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Control Panel\International C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A
Key created \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Control Panel\Desktop C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Control Panel\Desktop\WallpaperStyle = "10" C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeBackupPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A
Token: 36 N/A C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A
Token: SeImpersonatePrivilege N/A C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A
Token: SeIncreaseQuotaPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A
Token: SeManageVolumePrivilege N/A C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A
Token: SeRestorePrivilege N/A C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A
Token: SeSecurityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A
Token: SeShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\system32\vssvc.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\system32\vssvc.exe N/A
Token: SeAuditPrivilege N/A C:\Windows\system32\vssvc.exe N/A

Uses Volume Shadow Copy service COM API

ransomware

Processes

C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe

"C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe"

C:\Windows\system32\vssvc.exe

C:\Windows\system32\vssvc.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 paymenthacks.com udp
US 204.11.56.48:443 paymenthacks.com tcp
US 204.11.56.48:80 paymenthacks.com tcp
US 8.8.8.8:53 mojobiden.com udp
US 3.33.130.190:443 mojobiden.com tcp
US 3.33.130.190:80 mojobiden.com tcp
US 3.33.130.190:443 mojobiden.com tcp
US 204.11.56.48:443 paymenthacks.com tcp
US 204.11.56.48:443 paymenthacks.com tcp
US 204.11.56.48:80 paymenthacks.com tcp
US 3.33.130.190:443 mojobiden.com tcp
US 3.33.130.190:443 mojobiden.com tcp

Files

memory/2100-0-0x0000000000400000-0x0000000000415000-memory.dmp

memory/2100-1-0x0000000001DC0000-0x0000000001E00000-memory.dmp

C:\Users\Admin\5XCNh4eNc.README.txt

MD5 8a485e9f1237d69236522d2409a7fc3c
SHA1 fab1b7c56399623ae49ba840d0a88deb20099b5d
SHA256 d9006d5c753c364b27388831f03332f404b719a66f344ce8b1a340da24e93d53
SHA512 d0f2416496c77ad305de712ac8b6b42d9b57337eec88e66dddd8fc59309acda7a08ab3a492b961a850e8e501eafc0b23f6371af78210b86beefaae980e014483

C:\Users\Admin\AppData\Local\Temp\Cab12D7.tmp

MD5 ac05d27423a85adc1622c714f2cb6184
SHA1 b0fe2b1abddb97837ea0195be70ab2ff14d43198
SHA256 c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d
SHA512 6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

C:\Users\Admin\AppData\Local\Temp\Tar21B9.tmp

MD5 9c0c641c06238516f27941aa1166d427
SHA1 64cd549fb8cf014fcd9312aa7a5b023847b6c977
SHA256 4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f
SHA512 936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

memory/2100-317-0x0000000000400000-0x0000000000415000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-19 22:03

Reported

2023-12-20 19:23

Platform

win10v2004-20231215-en

Max time kernel

143s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe"

Signatures

BlackMatter Ransomware

ransomware blackmatter

Renames multiple (135) files with added filename extension

ransomware

Sets desktop wallpaper using registry

ransomware
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\jvdo5eVo9.bmp" C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\jvdo5eVo9.bmp" C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A

Modifies Control Panel

evasion
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Control Panel\International C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A
Key created \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Control Panel\Desktop C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Control Panel\Desktop\WallpaperStyle = "10" C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeBackupPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A
Token: 36 N/A C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A
Token: SeImpersonatePrivilege N/A C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A
Token: SeIncreaseQuotaPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A
Token: SeManageVolumePrivilege N/A C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A
Token: SeRestorePrivilege N/A C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A
Token: SeSecurityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A
Token: SeShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\system32\vssvc.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\system32\vssvc.exe N/A
Token: SeAuditPrivilege N/A C:\Windows\system32\vssvc.exe N/A

Uses Volume Shadow Copy service COM API

ransomware

Processes

C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe

"C:\Users\Admin\AppData\Local\Temp\b07ff2183904731e4905b1bc1e23d24e.exe"

C:\Windows\system32\vssvc.exe

C:\Windows\system32\vssvc.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 20.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 paymenthacks.com udp
US 204.11.56.48:443 paymenthacks.com tcp
US 8.8.8.8:53 179.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 48.56.11.204.in-addr.arpa udp
US 204.11.56.48:80 paymenthacks.com tcp
US 8.8.8.8:53 mojobiden.com udp
US 3.33.130.190:443 mojobiden.com tcp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 190.130.33.3.in-addr.arpa udp
US 3.33.130.190:80 mojobiden.com tcp
US 204.11.56.48:443 paymenthacks.com tcp
US 8.8.8.8:53 41.249.124.192.in-addr.arpa udp
US 204.11.56.48:80 paymenthacks.com tcp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 3.33.130.190:443 mojobiden.com tcp
US 8.8.8.8:53 208.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 181.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 11.173.189.20.in-addr.arpa udp

Files

memory/4692-0-0x0000000000400000-0x0000000000415000-memory.dmp

memory/4692-1-0x00000000020E0000-0x00000000020F0000-memory.dmp

memory/4692-2-0x00000000020E0000-0x00000000020F0000-memory.dmp

C:\jvdo5eVo9.README.txt

MD5 8a485e9f1237d69236522d2409a7fc3c
SHA1 fab1b7c56399623ae49ba840d0a88deb20099b5d
SHA256 d9006d5c753c364b27388831f03332f404b719a66f344ce8b1a340da24e93d53
SHA512 d0f2416496c77ad305de712ac8b6b42d9b57337eec88e66dddd8fc59309acda7a08ab3a492b961a850e8e501eafc0b23f6371af78210b86beefaae980e014483

memory/4692-206-0x0000000000400000-0x0000000000415000-memory.dmp

memory/4692-208-0x00000000020E0000-0x00000000020F0000-memory.dmp

memory/4692-209-0x00000000020E0000-0x00000000020F0000-memory.dmp