blackbasta | 5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa

Analysis

max time kernel
17s
max time network
21s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
22-08-2023 14:42

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Reason

Machine shutdown

Report Analysis Logs

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
T1070.004

Inhibit System Recovery
T1490

Modifies boot configuration data using bcdedit 1 TTPs 1 IoCs

ransomware evasion

Inhibit System Recovery

T1490

pid	Process
2072	bcdedit.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1014134971-2480516131-292343513-1000\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).

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

T1070.004

Inhibit System Recovery

T1490

pid	Process
1876	vssadmin.exe
2340	vssadmin.exe

Modifies registry class 3 IoCs

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

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeBackupPrivilege	2668	vssvc.exe
Token: SeRestorePrivilege	2668	vssvc.exe
Token: SeAuditPrivilege	2668	vssvc.exe
Token: SeShutdownPrivilege	568	shutdown.exe
Token: SeRemoteShutdownPrivilege	568	shutdown.exe

Suspicious use of WriteProcessMemory 40 IoCs

description	pid	Process	procid_target
PID 1956 wrote to memory of 1448	1956	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	29
PID 1956 wrote to memory of 1448	1956	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	29
PID 1956 wrote to memory of 1448	1956	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	29
PID 1956 wrote to memory of 1448	1956	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	29
PID 1448 wrote to memory of 1876	1448	cmd.exe	31
PID 1448 wrote to memory of 1876	1448	cmd.exe	31
PID 1448 wrote to memory of 1876	1448	cmd.exe	31
PID 1448 wrote to memory of 1876	1448	cmd.exe	31
PID 1956 wrote to memory of 2928	1956	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	36
PID 1956 wrote to memory of 2928	1956	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	36
PID 1956 wrote to memory of 2928	1956	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	36
PID 1956 wrote to memory of 2928	1956	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	36
PID 2928 wrote to memory of 2340	2928	cmd.exe	38
PID 2928 wrote to memory of 2340	2928	cmd.exe	38
PID 2928 wrote to memory of 2340	2928	cmd.exe	38
PID 2928 wrote to memory of 2340	2928	cmd.exe	38
PID 1956 wrote to memory of 1952	1956	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	40
PID 1956 wrote to memory of 1952	1956	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	40
PID 1956 wrote to memory of 1952	1956	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	40
PID 1956 wrote to memory of 1952	1956	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	40
PID 1956 wrote to memory of 2780	1956	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	42
PID 1956 wrote to memory of 2780	1956	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	42
PID 1956 wrote to memory of 2780	1956	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	42
PID 1956 wrote to memory of 2780	1956	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	42
PID 1956 wrote to memory of 1920	1956	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	45
PID 1956 wrote to memory of 1920	1956	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	45
PID 1956 wrote to memory of 1920	1956	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	45
PID 1956 wrote to memory of 1920	1956	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	45
PID 1920 wrote to memory of 2072	1920	cmd.exe	46
PID 1920 wrote to memory of 2072	1920	cmd.exe	46
PID 1920 wrote to memory of 2072	1920	cmd.exe	46
PID 1920 wrote to memory of 2072	1920	cmd.exe	46
PID 1956 wrote to memory of 1084	1956	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	47
PID 1956 wrote to memory of 1084	1956	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	47
PID 1956 wrote to memory of 1084	1956	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	47
PID 1956 wrote to memory of 1084	1956	5d2204f3a20e163120f52a2e3595db19890050b2faa96c6cba6b094b0a52b0aa.exe	47
PID 1084 wrote to memory of 568	1084	cmd.exe	49
PID 1084 wrote to memory of 568	1084	cmd.exe	49
PID 1084 wrote to memory of 568	1084	cmd.exe	49
PID 1084 wrote to memory of 568	1084	cmd.exe	49

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:1956
- 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:1448
- - C:\Windows\system32\vssadmin.exe
    C:\Windows\SysNative\vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:1876
- 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:2928
- - C:\Windows\SysWOW64\vssadmin.exe
    C:\Windows\System32\vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:2340
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c bcdedit /set safeboot network
  2⤵
  PID:1952
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Windows\System32\bcdedit.exe /set safeboot network
  2⤵
  PID:2780
- 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:1920
- - C:\Windows\system32\bcdedit.exe
    C:\Windows\SysNative\bcdedit.exe /set safeboot network
    3⤵
    - Modifies boot configuration data using bcdedit
    PID:2072
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C shutdown -r -f -t 0
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1084
- - C:\Windows\SysWOW64\shutdown.exe
    shutdown -r -f -t 0
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:568

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2668

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0
1⤵
PID:1964

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x1
1⤵
PID:984

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

T1491

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

memory/984-60-0x0000000002760000-0x0000000002761000-memory.dmp

Filesize
4KB

Download
memory/1964-59-0x0000000002A80000-0x0000000002A81000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads