blackbasta | 11129aad3b5baa1d118ec0ee3922278c194e43f6e2f0fcef221c65e5f4490d3b

General

Target

11129aad3b5baa1d118ec0ee3922278c194e43f6e2f0fcef221c65e5f4490d3b.exe
Size

2.6MB
MD5

523d6d251e5f8f9d7db1a3645967e72e
SHA1

aca4932ac18f5c0227ee85e01da35a0b66285424
SHA256

11129aad3b5baa1d118ec0ee3922278c194e43f6e2f0fcef221c65e5f4490d3b
SHA512

f4910a6c30e3f18564e77e47f5a2d0172775a880e39d93629de5c4094b22efc90c0d5c5518ed5952c7eeeb8861b55b2bdfac5a402fa11d1dac205d986046e05b
SSDEEP

49152:vFDi8DIuiRIGgmGjunBD95D8L5ZtGtXaP4La47RvmcfXGhCz7CNyHbn877QZI1w:vXxYSm9BfDCn4tqP4W2RvhfXGQzOQHbJ

Score

10^/10

blackbasta defense_evasion discovery execution impact ransomware

Malware Config

Extracted

Path

C:\Program Files (x86)\instructions_read_me.txt

Family

blackbasta

Ransom Note

ATTENTION! Your network has been breached and all data was encrypted. Please contact us at: https://bastad5huzwkepdixedg2gekg7jk22ato24zyllp6lnjx7wdtyctgvyd.onion/ Login ID: 66e18026-1453-4fe2-8621-d51fcc9dc54e *!* To access .onion websites download and install Tor Browser at: https://www.torproject.org/ (Tor Browser is not related to us) *!* To restore all your PCs and get your network working again, follow these instructions: - Any attempts to modify, decrypt or rename the files will lead to its fatal corruption. It doesn't matter, who are trying to do this, either it will be your IT guys or a recovery agency. Please follow these simple rules to avoid data corruption: - Do not modify, rename or delete files. Any attempts to modify, decrypt or rename the files will lead to its fatal corruption. - Do not hire a recovery company. They can't decrypt without the key. They also don't care about your business. They believe that they are good negotiators, but it is not. They usually fail. So speak for yourself. Waiting you in a chat.

URLs

https://bastad5huzwkepdixedg2gekg7jk22ato24zyllp6lnjx7wdtyctgvyd.onion/

Signatures

Black Basta
A ransomware family targeting Windows and Linux ESXi first seen in February 2022.
ransomware blackbasta
Blackbasta family
blackbasta
Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware defense_evasion impact execution

File Deletion
T1070.004

Inhibit System Recovery
T1490

Windows Management Instrumentation
T1047

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

11129aad3b5baa1d118ec0ee3922278c194e43f6e2f0fcef221c65e5f4490d3b.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	11129aad3b5baa1d118ec0ee3922278c194e43f6e2f0fcef221c65e5f4490d3b.exe

Interacts with shadow copies 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
ransomware

File Deletion
T1070.004

Inhibit System Recovery
T1490

Direct Volume Access
T1006

Processes:

vssadmin.exe

pid process

3444 vssadmin.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

11129aad3b5baa1d118ec0ee3922278c194e43f6e2f0fcef221c65e5f4490d3b.exe

pid process

3452 11129aad3b5baa1d118ec0ee3922278c194e43f6e2f0fcef221c65e5f4490d3b.exe

pid	process
3444	vssadmin.exe

pid	process
3452	11129aad3b5baa1d118ec0ee3922278c194e43f6e2f0fcef221c65e5f4490d3b.exe

C:\Users\Admin\AppData\Local\Temp\11129aad3b5baa1d118ec0ee3922278c194e43f6e2f0fcef221c65e5f4490d3b.exe
"C:\Users\Admin\AppData\Local\Temp\11129aad3b5baa1d118ec0ee3922278c194e43f6e2f0fcef221c65e5f4490d3b.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:3452
- C:\Windows\SysWOW64\explorer.exe
  explorer.exe
  2⤵
  PID:3076
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c C:\Windows\SysNative\vssadmin.exe delete shadows /all /quiet
    3⤵
    PID:2496
  - - C:\Windows\system32\vssadmin.exe
      C:\Windows\SysNative\vssadmin.exe delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:3444

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
PID:3500

C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
1⤵
PID:544

C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
"C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
1⤵
PID:836

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Windows Management Instrumentation

1

T1047

Persistence

Privilege Escalation

Defense Evasion

Direct Volume Access

1

T1006

Indicator Removal

2

T1070

File Deletion

2

T1070.004

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

2

T1490

Replay Monitor

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Downloads

C:\Program Files (x86)\instructions_read_me.txt

Filesize
1KB

MD5
4fd4c95249ac102be0c05c6a1a329cb6

SHA1
4be08872b8145d645c2e6fa80a1c6921b8d4a902

SHA256
df149c57c4fe9dd19d37c27014cdb7a6a1c72f19f555c83d9b87210c132492d5

SHA512
b66b202beae41a49c862ca9b08b4010c302b67014cb73907fb27a8e5c87c9b0c9a1e661cc9706a60a97cd2c414e2ee2cbe39b07803e0f8d03ad311fb148c65a8

Download Submit
C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\DeviceSearchCache\AppCache133745549367426269.txt

Filesize
75KB

MD5
55917baf0b842ae59c51ca768cb5eb24

SHA1
933d1e6105779a8f69efec514a9d1b4c8ae575af

SHA256
5023f13e569762e619f8eaf803fd4af604aa1a36e6fedc9f8f78f3791dafeb99

SHA512
1f5061689f42fd9c185ff55e8280241042212e905317b7148a30802bd2cf193045f9226ccceabb30798ad617bb77037cdc88c5a9414f22802275f0f1ca887b1c

Download Submit
memory/836-682-0x00000205ED390000-0x00000205ED3B0000-memory.dmp

Filesize
128KB

Download
memory/836-630-0x00000205DCCE0000-0x00000205DCD00000-memory.dmp

Filesize
128KB

Download
memory/836-622-0x00000205DC840000-0x00000205DC860000-memory.dmp

Filesize
128KB

Download
memory/836-589-0x00000205DB850000-0x00000205DB950000-memory.dmp

Filesize
1024KB

Download
memory/836-596-0x00000205DC880000-0x00000205DC8A0000-memory.dmp

Filesize
128KB

Download
memory/3076-10-0x0000000002740000-0x0000000002823000-memory.dmp

Filesize
908KB

Download
memory/3076-17-0x0000000002740000-0x0000000002823000-memory.dmp

Filesize
908KB

Download
memory/3076-16-0x0000000002740000-0x0000000002823000-memory.dmp

Filesize
908KB

Download
memory/3076-15-0x0000000002740000-0x0000000002823000-memory.dmp

Filesize
908KB

Download
memory/3076-585-0x0000000002740000-0x0000000002823000-memory.dmp

Filesize
908KB

Download
memory/3076-11-0x0000000002740000-0x0000000002823000-memory.dmp

Filesize
908KB

Download
memory/3076-14-0x0000000002740000-0x0000000002823000-memory.dmp

Filesize
908KB

Download
memory/3076-0-0x0000000000310000-0x00000000003BD000-memory.dmp

Filesize
692KB

Download
memory/3076-13-0x0000000002740000-0x0000000002823000-memory.dmp

Filesize
908KB

Download
memory/3076-3-0x0000000002740000-0x0000000002823000-memory.dmp

Filesize
908KB

Download
memory/3076-1-0x0000000002740000-0x0000000002823000-memory.dmp

Filesize
908KB

Download

Analysis

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