blackmatter | bf9511517f610387d714553bed6ff59d55c21cd0aa18ae00714585e699a332a3

Analysis

max time kernel
159s
max time network
121s
platform
windows7_x64
resource
win7-en-20211104
submitted
22-11-2021 13:14

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General

Target

1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe
Size

81KB
MD5

5a8491587ab0f96ba141ae59365bc911
SHA1

1ab2fac4f2dc92893a9f89fc6621f66bd47cb783
SHA256

1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2
SHA512

97e760f60e4db99983d05db69776058cf2f2c5ab98adea76000001a94a24f3b23feee4464baa23cf49dfa017e331c3b8b19c9da5b696f961f63cd65fc864c5c7

Score

10^/10

blackmatter ransomware suricata

Malware Config

Extracted

Path

C:\gawreXkrr.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. >>> We downloaded over 500GB company information from all domain. Data includes: - Personal company info - Finance information - Client information - Accounting and other sensitive info; To download your data we used following shares: 015-SBE-01.mmreibc.prv MMWEB-021-01.mmreibc.prv ALTERYX-PRD-02.mmreibc.prv 511-HARRIS-OLD 002-NAS-01.mmreibc.prv 003-NAS-01.mmreibc.prv 009-NAS-01.mmreibc.prv 010-NAS-01.mmreibc.prv 012-NAS-01.mmreibc.prv 013-NAS-01.mmreibc.prv 014-NAS-01.mmreibc.prv 016-NAS-01.mmreibc.prv 020-NAS-01.mmreibc.prv 022-NAS-01.mmreibc.prv 025-NAS-01.mmreibc.prv 026-NAS-01.mmreibc.prv 028-NAS-01.mmreibc.prv 029-NAS-01.mmreibc.prv 030-NAS-01.mmreibc.prv 032-NAS-01.mmreibc.prv 033-NAS-01.mmreibc.prv 034-NAS-01.mmreibc.prv 035-NAS-01.mmreibc.prv 036-NAS-01.mmreibc.prv 037-NAS-01.mmreibc.prv 039-NAS-01.mmreibc.prv 040-NAS-01.mmreibc.prv 041-NAS-01.mmreibc.prv 042-NAS-01.mmreibc.prv 045-NAS-01.mmreibc.prv 047-NAS-01.mmreibc.prv 049-NAS-01.mmreibc.prv 051-NAS-01.mmreibc.prv 052-NAS-01.mmreibc.prv 053-NAS-01.mmreibc.prv 054-NAS-01.mmreibc.prv 055-NAS-01.mmreibc.prv 056-NAS-01.mmreibc.prv 063-NAS-01.mmreibc.prv 068-NAS-01.mmreibc.prv 070-NAS-01.mmreibc.prv 082-NAS-01.mmreibc.prv 085-NAS-01.mmreibc.prv 086-NAS-01.mmreibc.prv 093-NAS-01.mmreibc.prv 098-NAS-01.mmreibc.prv 099-NAS-01.mmreibc.prv and others. If you are not going to contact us in the next 3 days, we will prepare your data for the publications. Your personal company info will be leaked and will be in the news. This will lead to a fall of your stock. >>> 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/A9K0IM6DK7ILWAV908R3 >>> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.

URLs

http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/A9K0IM6DK7ILWAV908R3

Signatures

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

Modifies extensions of user files 7 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File renamed	C:\Users\Admin\Pictures\SelectRead.png => C:\Users\Admin\Pictures\SelectRead.png.gawreXkrr	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe
File opened for modification	C:\Users\Admin\Pictures\SelectRead.png.gawreXkrr	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe
File renamed	C:\Users\Admin\Pictures\MountGet.crw => C:\Users\Admin\Pictures\MountGet.crw.gawreXkrr	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe
File opened for modification	C:\Users\Admin\Pictures\MountGet.crw.gawreXkrr	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe
File opened for modification	C:\Users\Admin\Pictures\PopReceive.tiff	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe
File renamed	C:\Users\Admin\Pictures\PopReceive.tiff => C:\Users\Admin\Pictures\PopReceive.tiff.gawreXkrr	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe
File opened for modification	C:\Users\Admin\Pictures\PopReceive.tiff.gawreXkrr	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.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-1-5-21-103686315-404690609-2047157615-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\gawreXkrr.bmp"	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\gawreXkrr.bmp"	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs

pid	Process
1220	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe
1220	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe
1220	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe
1220	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe
1220	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe
1220	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies Control Panel 3 IoCs

evasion

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Control Panel\International	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe
Key created	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Control Panel\Desktop	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Control Panel\Desktop\WallpaperStyle = "10"	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe

Modifies registry class 20 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\TV_FolderType = "{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}"	splwow64.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	splwow64.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff	splwow64.exe
Key created	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg	splwow64.exe
Key created	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags	splwow64.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\TV_TopViewID = "{82BA0782-5B7A-4569-B5D7-EC83085F08CC}"	splwow64.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\TV_TopViewVersion = "0"	splwow64.exe
Key created	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0	splwow64.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff	splwow64.exe
Key created	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0	splwow64.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02	splwow64.exe
Key created	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000_Classes\Local Settings	splwow64.exe
Key created	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	splwow64.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	splwow64.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f4225481e03947bc34db131e946b44c8dd50000	splwow64.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\NodeSlot = "1"	splwow64.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = ffffffff	splwow64.exe
Key created	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1	splwow64.exe
Key created	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell	splwow64.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 9e0000001a00eebbfe23000010007db10d7bd29c934a973346cc89022e7c00002a0000000000efbe000000200000000000000000000000000000000000000000000000000100000020002a0000000000efbe7e47b3fbe4c93b4ba2bad3f5d3cd46f98207ba827a5b6945b5d7ec83085f08cc20002a0000000000efbe000000200000000000000000000000000000000000000000000000000100000020000000	splwow64.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
828	NOTEPAD.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1220	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe
1220	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe
1220	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe
1220	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
568	splwow64.exe

Suspicious use of AdjustPrivilegeToken 17 IoCs

description	pid	Process
Token: SeBackupPrivilege	1220	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe
Token: SeDebugPrivilege	1220	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe
Token: 36	1220	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe
Token: SeImpersonatePrivilege	1220	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe
Token: SeIncBasePriorityPrivilege	1220	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe
Token: SeIncreaseQuotaPrivilege	1220	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe
Token: 33	1220	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe
Token: SeManageVolumePrivilege	1220	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe
Token: SeProfSingleProcessPrivilege	1220	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe
Token: SeRestorePrivilege	1220	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe
Token: SeSecurityPrivilege	1220	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe
Token: SeSystemProfilePrivilege	1220	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe
Token: SeTakeOwnershipPrivilege	1220	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe
Token: SeShutdownPrivilege	1220	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe
Token: SeBackupPrivilege	1800	vssvc.exe
Token: SeRestorePrivilege	1800	vssvc.exe
Token: SeAuditPrivilege	1800	vssvc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
568	splwow64.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1220 wrote to memory of 828	1220	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe	35
PID 1220 wrote to memory of 828	1220	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe	35
PID 1220 wrote to memory of 828	1220	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe	35
PID 1220 wrote to memory of 828	1220	1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe	35
PID 828 wrote to memory of 568	828	NOTEPAD.EXE	36
PID 828 wrote to memory of 568	828	NOTEPAD.EXE	36
PID 828 wrote to memory of 568	828	NOTEPAD.EXE	36
PID 828 wrote to memory of 568	828	NOTEPAD.EXE	36

C:\Users\Admin\AppData\Local\Temp\1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe
"C:\Users\Admin\AppData\Local\Temp\1eea3cbd729d4493c0c0a84efe6840abf1760efe221dc971d32ca5017b5c19c2.exe"
1⤵
- Modifies extensions of user files
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies Control Panel
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1220
- C:\Windows\SysWOW64\NOTEPAD.EXE
  "C:\Windows\system32\NOTEPAD.EXE" /p C:\gawreXkrr.README.txt
  2⤵
  - Opens file in notepad (likely ransom note)
  - Suspicious use of WriteProcessMemory
  PID:828
- - C:\Windows\splwow64.exe
    C:\Windows\splwow64.exe 12288
    3⤵
    - Modifies registry class
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:568

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1800

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

T1491

Replay Monitor

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Downloads

memory/568-63-0x000007FEFB7E1000-0x000007FEFB7E3000-memory.dmp

Filesize
8KB

Download
memory/568-64-0x0000000004160000-0x0000000004161000-memory.dmp

Filesize
4KB

Download
memory/1220-55-0x0000000075881000-0x0000000075883000-memory.dmp

Filesize
8KB

Download
memory/1220-57-0x00000000004F0000-0x00000000004F1000-memory.dmp

Filesize
4KB

Download
memory/1220-56-0x00000000004F5000-0x0000000000506000-memory.dmp

Filesize
68KB

Download
memory/1220-58-0x0000000000506000-0x0000000000507000-memory.dmp

Filesize
4KB

Download