cfbfb13967573bab19261e6d2653c6fa06cb1c9008c61aa89da19cd3a1c5c4ca

Analysis

max time kernel
14s
max time network
22s
platform
windows10-1703_x64
resource
win10-20240611-en
resource tags

arch:x64arch:x86image:win10-20240611-enlocale:en-usos:windows10-1703-x64system
submitted
27-08-2024 15:04

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General

Target

nvkFix/FIX.bat
Size

977B
MD5

f083c0f930d20a64669958500e827f4b
SHA1

9315478c204f317865bc5c5dc57d007edf826525
SHA256

eaaec43dba120f9dc1e2621a5812536aeeceaa1c851c492536e848b7ab57d93d
SHA512

eb81b18a67ac6da65a97219b6cfed6ab6745cf02bc4fe446972558847fc47ccac2726b7f6c32c3af04005c885aed462a5098d236cff8b88c1323607395cf209d

Score

9^/10

defense_evasion evasion ransomware

Malware Config

Signatures

Modifies boot configuration data using bcdedit 1 TTPs 1 IoCs

ransomware evasion

Inhibit System Recovery

T1490

pid	Process
4168	bcdedit.exe

Modify Registry: Disable Windows Driver Blocklist 2 TTPs 1 IoCs

Disable Windows Driver Blocklist via Registry.

defense_evasion

Modify Registry

T1112

Impair Defenses

T1562

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\CI\Config\VulnerableDriverBlocklistEnable = "0"	reg.exe

Runs net.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4500 wrote to memory of 3584	4500	cmd.exe	72
PID 4500 wrote to memory of 3584	4500	cmd.exe	72
PID 3584 wrote to memory of 3820	3584	net.exe	73
PID 3584 wrote to memory of 3820	3584	net.exe	73
PID 4500 wrote to memory of 3572	4500	cmd.exe	74
PID 4500 wrote to memory of 3572	4500	cmd.exe	74
PID 4500 wrote to memory of 96	4500	cmd.exe	75
PID 4500 wrote to memory of 96	4500	cmd.exe	75
PID 4500 wrote to memory of 3172	4500	cmd.exe	76
PID 4500 wrote to memory of 3172	4500	cmd.exe	76
PID 4500 wrote to memory of 4168	4500	cmd.exe	77
PID 4500 wrote to memory of 4168	4500	cmd.exe	77

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\nvkFix\FIX.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:4500
- C:\Windows\system32\net.exe
  net session
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3584
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 session
    3⤵
    PID:3820
- C:\Windows\system32\reg.exe
  reg add "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management" /v FeatureSettingsOverride /t REG_DWORD /d 3
  2⤵
  PID:3572
- C:\Windows\system32\reg.exe
  reg add "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management" /v FeatureSettingsOverrideMask /t REG_DWORD /d 3
  2⤵
  PID:96
- C:\Windows\system32\reg.exe
  reg add "HKLM\SYSTEM\CurrentControlSet\Control\CI\Config" /v VulnerableDriverBlocklistEnable /t REG_DWORD /d 0x000000
  2⤵
  - Modify Registry: Disable Windows Driver Blocklist
  PID:3172
- C:\Windows\system32\bcdedit.exe
  bcdedit /set hypervisorlaunchtype off
  2⤵
  - Modifies boot configuration data using bcdedit
  PID:4168

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Impair Defenses

T1562

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

T1490

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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