blackmatter | c22a6401a415fe642f3d96f38a887dd8ad23dd83a9255ee89d9adf4650ab98da

General

Target

OTSLG.ps1
Size

915KB
MD5

001bfe6f72fe64660ba498107c658bdc
SHA1

0946baf23e867f2564302b60f777db72a1244a30
SHA256

c22a6401a415fe642f3d96f38a887dd8ad23dd83a9255ee89d9adf4650ab98da
SHA512

32836eff8285a5a301be0b4410d34a73d99d4c04b38b0b67b937c1bc5ae6ab2d033a97089b6588c245371dfd8e95c420c8bbd3862a632a828122861e0ec839d3

Score

10^/10

blackmatter ransomware

Malware Config

Extracted

Path

C:\eeWDzMyD5.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/O1E1HJ9H8JNKNNHC8 >>> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.

URLs

http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/O1E1HJ9H8JNKNNHC8

Signatures

BlackMatter Ransomware
BlackMatter ransomware group claims to be Darkside and REvil succesor.
ransomware blackmatter

Modifies extensions of user files 14 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

powershell.exe

description	ioc	process
File renamed	C:\Users\Admin\Pictures\SyncExit.raw => C:\Users\Admin\Pictures\SyncExit.raw.eeWDzMyD5	powershell.exe
File renamed	C:\Users\Admin\Pictures\BlockPush.tif => C:\Users\Admin\Pictures\BlockPush.tif.eeWDzMyD5	powershell.exe
File renamed	C:\Users\Admin\Pictures\ConfirmJoin.raw => C:\Users\Admin\Pictures\ConfirmJoin.raw.eeWDzMyD5	powershell.exe
File opened for modification	C:\Users\Admin\Pictures\SearchHide.tif.eeWDzMyD5	powershell.exe
File opened for modification	C:\Users\Admin\Pictures\UnpublishRequest.raw.eeWDzMyD5	powershell.exe
File opened for modification	C:\Users\Admin\Pictures\BlockPush.tif.eeWDzMyD5	powershell.exe
File renamed	C:\Users\Admin\Pictures\InvokeStart.crw => C:\Users\Admin\Pictures\InvokeStart.crw.eeWDzMyD5	powershell.exe
File opened for modification	C:\Users\Admin\Pictures\SyncExit.raw.eeWDzMyD5	powershell.exe
File opened for modification	C:\Users\Admin\Pictures\CloseEdit.raw.eeWDzMyD5	powershell.exe
File opened for modification	C:\Users\Admin\Pictures\ConfirmJoin.raw.eeWDzMyD5	powershell.exe
File renamed	C:\Users\Admin\Pictures\SearchHide.tif => C:\Users\Admin\Pictures\SearchHide.tif.eeWDzMyD5	powershell.exe
File renamed	C:\Users\Admin\Pictures\UnpublishRequest.raw => C:\Users\Admin\Pictures\UnpublishRequest.raw.eeWDzMyD5	powershell.exe
File renamed	C:\Users\Admin\Pictures\CloseEdit.raw => C:\Users\Admin\Pictures\CloseEdit.raw.eeWDzMyD5	powershell.exe
File opened for modification	C:\Users\Admin\Pictures\InvokeStart.crw.eeWDzMyD5	powershell.exe

Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.

Query Registry
T1012

Peripheral Device Discovery
T1120

System Information Discovery
T1082

Processes:

powershell.exe

description ioc process

File opened (read-only) \??\Z: powershell.exe

description	ioc	process
File opened (read-only)	\??\Z:	powershell.exe

Sets desktop wallpaper using registry 2 TTPs 2 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

Processes:

powershell.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\eeWDzMyD5.bmp"	powershell.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\eeWDzMyD5.bmp"	powershell.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs

Processes:

powershell.exe

pid process

652 powershell.exe
652 powershell.exe
652 powershell.exe
652 powershell.exe
652 powershell.exe
652 powershell.exe

pid	process
652	powershell.exe
652	powershell.exe
652	powershell.exe
652	powershell.exe
652	powershell.exe
652	powershell.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes:

powershell.exepowershell.exe

pid	process
3064	powershell.exe
3064	powershell.exe
3064	powershell.exe
652	powershell.exe
652	powershell.exe
652	powershell.exe
652	powershell.exe
652	powershell.exe
652	powershell.exe
652	powershell.exe

Suspicious use of AdjustPrivilegeToken 19 IoCs

Processes:

powershell.exepowershell.exevssvc.exe

description	pid	process
Token: SeDebugPrivilege	3064	powershell.exe
Token: SeDebugPrivilege	652	powershell.exe
Token: SeBackupPrivilege	652	powershell.exe
Token: SeDebugPrivilege	652	powershell.exe
Token: 36	652	powershell.exe
Token: SeImpersonatePrivilege	652	powershell.exe
Token: SeIncBasePriorityPrivilege	652	powershell.exe
Token: SeIncreaseQuotaPrivilege	652	powershell.exe
Token: 33	652	powershell.exe
Token: SeManageVolumePrivilege	652	powershell.exe
Token: SeProfSingleProcessPrivilege	652	powershell.exe
Token: SeRestorePrivilege	652	powershell.exe
Token: SeSecurityPrivilege	652	powershell.exe
Token: SeSystemProfilePrivilege	652	powershell.exe
Token: SeTakeOwnershipPrivilege	652	powershell.exe
Token: SeShutdownPrivilege	652	powershell.exe
Token: SeBackupPrivilege	1520	vssvc.exe
Token: SeRestorePrivilege	1520	vssvc.exe
Token: SeAuditPrivilege	1520	vssvc.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

powershell.exe

description	pid	process	target process
PID 3064 wrote to memory of 652	3064	powershell.exe	powershell.exe
PID 3064 wrote to memory of 652	3064	powershell.exe	powershell.exe
PID 3064 wrote to memory of 652	3064	powershell.exe	powershell.exe

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\OTSLG.ps1
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3064

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe" -ex bypass -NonI C:\Users\Admin\AppData\Local\Temp\OTSLG.ps1
2⤵
- Modifies extensions of user files
- Enumerates connected drives
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:652

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1520

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Defacement

1

T1491

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
MD5
385b4a9d826a52e13e9d36280175f8e8

SHA1
879c00dae1b257f93f21634aa7eaa184c9fcf5a0

SHA256
253c4f5f363812e3bf95830653b86aa2efb50c6db490754a8f1899a0fe6b92dd

SHA512
5ea3458f5bbb6e01ed8d2360a508b2be19d132303cafa94de82898058c4c378811556298ae844ee0b54e09a665f7816157a6c8a0e8f015d0292703896754aef8

Download Submit
memory/652-173-0x0000000004D10000-0x0000000004D11000-memory.dmp

Filesize
4KB

Download
memory/652-185-0x00000000048C0000-0x00000000048C1000-memory.dmp

Filesize
4KB

Download
memory/652-438-0x000000000B4D0000-0x000000000BB48000-memory.dmp

Filesize
6.5MB

Download
memory/652-174-0x00000000074B0000-0x00000000074B1000-memory.dmp

Filesize
4KB

Download
memory/652-437-0x000000000B4D0000-0x000000000BB48000-memory.dmp

Filesize
6.5MB

Download
memory/652-435-0x0000000004DC6000-0x0000000004DC8000-memory.dmp

Filesize
8KB

Download
memory/652-290-0x0000000004DC3000-0x0000000004DC4000-memory.dmp

Filesize
4KB

Download
memory/652-175-0x0000000004DC0000-0x0000000004DC1000-memory.dmp

Filesize
4KB

Download
memory/652-220-0x000000007EFD0000-0x000000007EFD1000-memory.dmp

Filesize
4KB

Download
memory/652-178-0x0000000007B50000-0x0000000007B51000-memory.dmp

Filesize
4KB

Download
memory/652-184-0x00000000084E0000-0x00000000084E1000-memory.dmp

Filesize
4KB

Download
memory/652-143-0x0000000000000000-mapping.dmp

Download
memory/652-183-0x0000000008260000-0x0000000008261000-memory.dmp

Filesize
4KB

Download
memory/652-176-0x0000000004DC2000-0x0000000004DC3000-memory.dmp

Filesize
4KB

Download
memory/652-172-0x00000000048C0000-0x00000000048C1000-memory.dmp

Filesize
4KB

Download
memory/652-182-0x0000000007C10000-0x0000000007C11000-memory.dmp

Filesize
4KB

Download
memory/652-180-0x0000000007F10000-0x0000000007F11000-memory.dmp

Filesize
4KB

Download
memory/652-179-0x0000000007C30000-0x0000000007C31000-memory.dmp

Filesize
4KB

Download
memory/652-171-0x00000000048C0000-0x00000000048C1000-memory.dmp

Filesize
4KB

Download
memory/652-177-0x0000000007360000-0x0000000007361000-memory.dmp

Filesize
4KB

Download
memory/3064-128-0x000002E672806000-0x000002E672808000-memory.dmp

Filesize
8KB

Download
memory/3064-126-0x000002E672800000-0x000002E672802000-memory.dmp

Filesize
8KB

Download
memory/3064-122-0x000002E65A290000-0x000002E65A291000-memory.dmp

Filesize
4KB

Download
memory/3064-119-0x000002E6586E0000-0x000002E6586E2000-memory.dmp

Filesize
8KB

Download
memory/3064-118-0x000002E6586E0000-0x000002E6586E2000-memory.dmp

Filesize
8KB

Download
memory/3064-170-0x000002E6586E0000-0x000002E6586E2000-memory.dmp

Filesize
8KB

Download
memory/3064-129-0x000002E6586E0000-0x000002E6586E2000-memory.dmp

Filesize
8KB

Download
memory/3064-120-0x000002E6586E0000-0x000002E6586E2000-memory.dmp

Filesize
8KB

Download
memory/3064-127-0x000002E672803000-0x000002E672805000-memory.dmp

Filesize
8KB

Download
memory/3064-125-0x000002E672A40000-0x000002E672A41000-memory.dmp

Filesize
4KB

Download
memory/3064-124-0x000002E6586E0000-0x000002E6586E2000-memory.dmp

Filesize
8KB

Download
memory/3064-123-0x000002E6586E0000-0x000002E6586E2000-memory.dmp

Filesize
8KB

Download
memory/3064-121-0x000002E6586E0000-0x000002E6586E2000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads