cee065a78a687c149c7c7410b734290b33ed7d665121de0283311b2c868fa117

Analysis

max time kernel
140s
max time network
152s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
01-11-2024 16:58

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General

Target

BLOCKBUSTER.exe
Size

9.1MB
MD5

74d3f521a38b23cd25ed61e4f8d99f16
SHA1

c4cd0e519aeca41e94665f2c5ea60a322deb3680
SHA256

1d822b3faabb8f65fc30076d32a95757a2c369ccb64ae54572e9f562280ae845
SHA512

ec1c8b0eb895fd8947cad6126abc5bca3a712e42475228b9dcb3496098e720abb83d4cba4621edbd8d3ad7f306a5f57ced9c2c98fe2c2d0c8ebbbf99d7faf0f1
SSDEEP

196608:bmFQso3Id5AypjCIN325pMKhQaLh6sOo5LZvqy1f:OQseId5AyZIpMKVLhJtJqS

Score

8^/10

discovery evasion persistence privilege_escalation

Malware Config

Signatures

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2776	netsh.exe

Loads dropped DLL 1 IoCs

pid	Process
2096	BLOCKBUSTER.exe

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

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 8 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ipconfig.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	BLOCKBUSTER.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SCHTASKS.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
2488	ipconfig.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2508	schtasks.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

pid	Process
2096	BLOCKBUSTER.exe
2096	BLOCKBUSTER.exe
2096	BLOCKBUSTER.exe
2096	BLOCKBUSTER.exe
2096	BLOCKBUSTER.exe
2096	BLOCKBUSTER.exe
2096	BLOCKBUSTER.exe
2096	BLOCKBUSTER.exe
2096	BLOCKBUSTER.exe
2096	BLOCKBUSTER.exe
2096	BLOCKBUSTER.exe
2096	BLOCKBUSTER.exe
2096	BLOCKBUSTER.exe
2096	BLOCKBUSTER.exe
2096	BLOCKBUSTER.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2096	BLOCKBUSTER.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2096	BLOCKBUSTER.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
2096	BLOCKBUSTER.exe
2096	BLOCKBUSTER.exe
2096	BLOCKBUSTER.exe
2096	BLOCKBUSTER.exe
2096	BLOCKBUSTER.exe
2096	BLOCKBUSTER.exe
2096	BLOCKBUSTER.exe
2096	BLOCKBUSTER.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2096 wrote to memory of 1716	2096	BLOCKBUSTER.exe	31
PID 2096 wrote to memory of 1716	2096	BLOCKBUSTER.exe	31
PID 2096 wrote to memory of 1716	2096	BLOCKBUSTER.exe	31
PID 2096 wrote to memory of 1716	2096	BLOCKBUSTER.exe	31
PID 2096 wrote to memory of 2380	2096	BLOCKBUSTER.exe	33
PID 2096 wrote to memory of 2380	2096	BLOCKBUSTER.exe	33
PID 2096 wrote to memory of 2380	2096	BLOCKBUSTER.exe	33
PID 2096 wrote to memory of 2380	2096	BLOCKBUSTER.exe	33
PID 2096 wrote to memory of 2648	2096	BLOCKBUSTER.exe	34
PID 2096 wrote to memory of 2648	2096	BLOCKBUSTER.exe	34
PID 2096 wrote to memory of 2648	2096	BLOCKBUSTER.exe	34
PID 2096 wrote to memory of 2648	2096	BLOCKBUSTER.exe	34
PID 2380 wrote to memory of 2508	2380	cmd.exe	37
PID 2380 wrote to memory of 2508	2380	cmd.exe	37
PID 2380 wrote to memory of 2508	2380	cmd.exe	37
PID 2380 wrote to memory of 2508	2380	cmd.exe	37
PID 2648 wrote to memory of 2776	2648	cmd.exe	38
PID 2648 wrote to memory of 2776	2648	cmd.exe	38
PID 2648 wrote to memory of 2776	2648	cmd.exe	38
PID 2648 wrote to memory of 2776	2648	cmd.exe	38
PID 2096 wrote to memory of 2516	2096	BLOCKBUSTER.exe	40
PID 2096 wrote to memory of 2516	2096	BLOCKBUSTER.exe	40
PID 2096 wrote to memory of 2516	2096	BLOCKBUSTER.exe	40
PID 2096 wrote to memory of 2516	2096	BLOCKBUSTER.exe	40
PID 2516 wrote to memory of 2488	2516	cmd.exe	42
PID 2516 wrote to memory of 2488	2516	cmd.exe	42
PID 2516 wrote to memory of 2488	2516	cmd.exe	42
PID 2516 wrote to memory of 2488	2516	cmd.exe	42

C:\Users\Admin\AppData\Local\Temp\BLOCKBUSTER.exe
"C:\Users\Admin\AppData\Local\Temp\BLOCKBUSTER.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2096
- C:\Windows\SysWOW64\SCHTASKS.exe
  SCHTASKS /Query /TN "BLOCKBUSTER"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1716
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C SCHTASKS /Create /F /RL HIGHEST /TN "BLOCKBUSTER" /TR "C:\Users\Admin\AppData\Local\Temp\BLOCKBUSTER.exe" /SC ONLOGON /DELAY 0001:00
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2380
- - C:\Windows\SysWOW64\schtasks.exe
    SCHTASKS /Create /F /RL HIGHEST /TN "BLOCKBUSTER" /TR "C:\Users\Admin\AppData\Local\Temp\BLOCKBUSTER.exe" /SC ONLOGON /DELAY 0001:00
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2508
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C netsh advfirewall firewall add rule name="BLOCKBUSTER" dir=in action=allow program="C:\Users\Admin\AppData\Local\Temp\BLOCKBUSTER.exe" enable=yes profile=any
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2648
- - C:\Windows\SysWOW64\netsh.exe
    netsh advfirewall firewall add rule name="BLOCKBUSTER" dir=in action=allow program="C:\Users\Admin\AppData\Local\Temp\BLOCKBUSTER.exe" enable=yes profile=any
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2776
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ipconfig /flushdns
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2516
- - C:\Windows\SysWOW64\ipconfig.exe
    ipconfig /flushdns
    3⤵
    - System Location Discovery: System Language Discovery
    - Gathers network information
    PID:2488

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\hcx.dll

Filesize
398KB

MD5
287c055b14d6ab41b021486e4fef3708

SHA1
d705e8d163d60b39e0265e30a56966c58323bef3

SHA256
3976547348f3cd6887ad0bc6a1f1f54010b58ca5cc1a77a937e882def475ab9e

SHA512
fbc627c5d06ff4440d67f7fe97ad187bf6b6472ce9f0584e7ad3d1a391e7006db97d81ac6800a80bd8304172959f01a3bc72c55773d421f2332148731a71f0b1

Download Submit
memory/2096-29-0x0000000000400000-0x0000000000D36000-memory.dmp

Filesize
9.2MB

Download
memory/2096-6-0x0000000000400000-0x0000000000D36000-memory.dmp

Filesize
9.2MB

Download
memory/2096-32-0x0000000005E70000-0x000000000AA2B000-memory.dmp

Filesize
75.7MB

Download
memory/2096-7-0x0000000005E70000-0x000000000AA2B000-memory.dmp

Filesize
75.7MB

Download
memory/2096-1-0x0000000005E70000-0x000000000AA2B000-memory.dmp

Filesize
75.7MB

Download
memory/2096-12-0x000000000C630000-0x000000000C631000-memory.dmp

Filesize
4KB

Download
memory/2096-10-0x000000000C4B0000-0x000000000C518000-memory.dmp

Filesize
416KB

Download
memory/2096-18-0x0000000000400000-0x0000000000D36000-memory.dmp

Filesize
9.2MB

Download
memory/2096-34-0x0000000005E70000-0x000000000AA2B000-memory.dmp

Filesize
75.7MB

Download
memory/2096-0-0x00000000002C0000-0x00000000002C1000-memory.dmp

Filesize
4KB

Download
memory/2096-52-0x0000000005E70000-0x000000000AA2B000-memory.dmp

Filesize
75.7MB

Download
memory/2096-8-0x00000000002C0000-0x00000000002C1000-memory.dmp

Filesize
4KB

Download
memory/2096-19-0x0000000005E70000-0x000000000AA2B000-memory.dmp

Filesize
75.7MB

Download
memory/2096-36-0x0000000005E70000-0x000000000AA2B000-memory.dmp

Filesize
75.7MB

Download
memory/2096-38-0x0000000005E70000-0x000000000AA2B000-memory.dmp

Filesize
75.7MB

Download
memory/2096-40-0x0000000005E70000-0x000000000AA2B000-memory.dmp

Filesize
75.7MB

Download
memory/2096-42-0x0000000005E70000-0x000000000AA2B000-memory.dmp

Filesize
75.7MB

Download
memory/2096-44-0x0000000005E70000-0x000000000AA2B000-memory.dmp

Filesize
75.7MB

Download
memory/2096-46-0x0000000005E70000-0x000000000AA2B000-memory.dmp

Filesize
75.7MB

Download
memory/2096-48-0x0000000005E70000-0x000000000AA2B000-memory.dmp

Filesize
75.7MB

Download
memory/2096-50-0x0000000005E70000-0x000000000AA2B000-memory.dmp

Filesize
75.7MB

Download
memory/2096-30-0x0000000005E70000-0x000000000AA2B000-memory.dmp

Filesize
75.7MB

Download