blackbasta | 5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa

Reason

Machine shutdown

General

Target

5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe
Size

563KB
MD5

3f400f30415941348af21d515a2fc6a3
SHA1

bd0bf9c987288ca434221d7d81c54a47e913600a
SHA256

5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa
SHA512

0d4c3ee8807bbbf635ce2d1ce1b747c23cc2724ff999580169e5514c7c97109083bea169bd6a5f8be35f3b679bb8446839fcc7a38f78503658eda306bec69154
SSDEEP

12288:TFx0B/O7JxPzW9JPlHKtxYRkG7zLfpXE6SbJ:Rx7zW9JPlGskG1v

Score

10^/10

blackbasta evasion ransomware

Malware Config

Signatures

Black Basta
A ransomware family targeting Windows and Linux ESXi first seen in February 2022.
ransomware blackbasta
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490
Modifies boot configuration data using bcdedit 1 TTPs 1 IoCs
ransomware evasion

Inhibit System Recovery
T1490

Processes:

bcdedit.exe

pid process

1480 bcdedit.exe

pid	process
1480	bcdedit.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

Processes:

5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\dlaksjdoiwq.jpg"	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe

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

System Information Discovery
T1082
Interacts with shadow copies 2 TTPs 2 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Processes:

vssadmin.exevssadmin.exe

pid process

1700 vssadmin.exe
1684 vssadmin.exe

pid	process
1700	vssadmin.exe
1684	vssadmin.exe

Modifies registry class 3 IoCs

Processes:

5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.basta\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\fkdjsadasd.ico"	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.basta\DefaultIcon	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.basta	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

vssvc.exeshutdown.exe

description	pid	process
Token: SeBackupPrivilege	1016	vssvc.exe
Token: SeRestorePrivilege	1016	vssvc.exe
Token: SeAuditPrivilege	1016	vssvc.exe
Token: SeShutdownPrivilege	852	shutdown.exe
Token: SeRemoteShutdownPrivilege	852	shutdown.exe

Suspicious use of WriteProcessMemory 40 IoCs

Processes:

5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.execmd.execmd.execmd.execmd.exe

description	pid	process	target process
PID 1944 wrote to memory of 1936	1944	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	cmd.exe
PID 1944 wrote to memory of 1936	1944	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	cmd.exe
PID 1944 wrote to memory of 1936	1944	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	cmd.exe
PID 1944 wrote to memory of 1936	1944	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	cmd.exe
PID 1936 wrote to memory of 1700	1936	cmd.exe	vssadmin.exe
PID 1936 wrote to memory of 1700	1936	cmd.exe	vssadmin.exe
PID 1936 wrote to memory of 1700	1936	cmd.exe	vssadmin.exe
PID 1936 wrote to memory of 1700	1936	cmd.exe	vssadmin.exe
PID 1944 wrote to memory of 1300	1944	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	cmd.exe
PID 1944 wrote to memory of 1300	1944	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	cmd.exe
PID 1944 wrote to memory of 1300	1944	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	cmd.exe
PID 1944 wrote to memory of 1300	1944	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	cmd.exe
PID 1300 wrote to memory of 1684	1300	cmd.exe	vssadmin.exe
PID 1300 wrote to memory of 1684	1300	cmd.exe	vssadmin.exe
PID 1300 wrote to memory of 1684	1300	cmd.exe	vssadmin.exe
PID 1300 wrote to memory of 1684	1300	cmd.exe	vssadmin.exe
PID 1944 wrote to memory of 1056	1944	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	cmd.exe
PID 1944 wrote to memory of 1056	1944	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	cmd.exe
PID 1944 wrote to memory of 1056	1944	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	cmd.exe
PID 1944 wrote to memory of 1056	1944	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	cmd.exe
PID 1944 wrote to memory of 432	1944	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	cmd.exe
PID 1944 wrote to memory of 432	1944	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	cmd.exe
PID 1944 wrote to memory of 432	1944	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	cmd.exe
PID 1944 wrote to memory of 432	1944	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	cmd.exe
PID 1944 wrote to memory of 1316	1944	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	cmd.exe
PID 1944 wrote to memory of 1316	1944	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	cmd.exe
PID 1944 wrote to memory of 1316	1944	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	cmd.exe
PID 1944 wrote to memory of 1316	1944	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	cmd.exe
PID 1316 wrote to memory of 1480	1316	cmd.exe	bcdedit.exe
PID 1316 wrote to memory of 1480	1316	cmd.exe	bcdedit.exe
PID 1316 wrote to memory of 1480	1316	cmd.exe	bcdedit.exe
PID 1316 wrote to memory of 1480	1316	cmd.exe	bcdedit.exe
PID 1944 wrote to memory of 784	1944	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	cmd.exe
PID 1944 wrote to memory of 784	1944	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	cmd.exe
PID 1944 wrote to memory of 784	1944	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	cmd.exe
PID 1944 wrote to memory of 784	1944	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	cmd.exe
PID 784 wrote to memory of 852	784	cmd.exe	shutdown.exe
PID 784 wrote to memory of 852	784	cmd.exe	shutdown.exe
PID 784 wrote to memory of 852	784	cmd.exe	shutdown.exe
PID 784 wrote to memory of 852	784	cmd.exe	shutdown.exe

C:\Users\Admin\AppData\Local\Temp\5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe
"C:\Users\Admin\AppData\Local\Temp\5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe"
1⤵
- Sets desktop wallpaper using registry
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1944
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Windows\SysNative\vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1936
- - C:\Windows\system32\vssadmin.exe
    C:\Windows\SysNative\vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:1700
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Windows\System32\vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1300
- - C:\Windows\SysWOW64\vssadmin.exe
    C:\Windows\System32\vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:1684
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c bcdedit /set safeboot network
  2⤵
  PID:1056
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Windows\System32\bcdedit.exe /set safeboot network
  2⤵
  PID:432
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Windows\SysNative\bcdedit.exe /set safeboot network
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1316
- - C:\Windows\system32\bcdedit.exe
    C:\Windows\SysNative\bcdedit.exe /set safeboot network
    3⤵
    - Modifies boot configuration data using bcdedit
    PID:1480
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C shutdown -r -f -t 0
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:784
- - C:\Windows\SysWOW64\shutdown.exe
    shutdown -r -f -t 0
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:852

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1016

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0
1⤵
PID:1680

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x1
1⤵
PID:1780

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File Deletion

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

1

T1491

Inhibit System Recovery

3

T1490

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Downloads

memory/432-60-0x0000000000000000-mapping.dmp

Download
memory/784-63-0x0000000000000000-mapping.dmp

Download
memory/852-64-0x0000000000000000-mapping.dmp

Download
memory/1056-59-0x0000000000000000-mapping.dmp

Download
memory/1300-57-0x0000000000000000-mapping.dmp

Download
memory/1316-61-0x0000000000000000-mapping.dmp

Download
memory/1480-62-0x0000000000000000-mapping.dmp

Download
memory/1680-65-0x000007FEFBE81000-0x000007FEFBE83000-memory.dmp

Filesize
8KB

Download
memory/1684-58-0x0000000000000000-mapping.dmp

Download
memory/1700-56-0x0000000000000000-mapping.dmp

Download
memory/1936-55-0x0000000000000000-mapping.dmp

Download
memory/1944-54-0x0000000076141000-0x0000000076143000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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