fa8064a6eca9a30e4525c9135d7ffb45a5d25dda297fa10f0e91bb721ea529f9

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
06-08-2024 16:27

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General

Target

$PLUGINSDIR/Midex.dll
Size

126KB
MD5

2597a829e06eb9616af49fcd8052b8bd
SHA1

871801aba3a75f95b10701f31303de705cb0bc5a
SHA256

7359ca1befdb83d480fc1149ac0e8e90354b5224db7420b14b2d96d87cd20a87
SHA512

8e5552b2f6e1c531aaa9fd507aa53c6e3d2f1dd63fe19e6350c5b6fbb009c99d353bb064a9eba4c31af6a020b31c0cd519326d32db4c8b651b83952e265ffb35
SSDEEP

3072:sACUTz1JlJmpGB6yK4H9l4o8rr4YlixbSrZKbazGk:sACUTz1JlopG5K4OZgeC

Score

6^/10

bootkit discovery persistence

Malware Config

Signatures

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2836	2800	WerFault.exe	31

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2784 wrote to memory of 2800	2784	rundll32.exe	31
PID 2784 wrote to memory of 2800	2784	rundll32.exe	31
PID 2784 wrote to memory of 2800	2784	rundll32.exe	31
PID 2784 wrote to memory of 2800	2784	rundll32.exe	31
PID 2784 wrote to memory of 2800	2784	rundll32.exe	31
PID 2784 wrote to memory of 2800	2784	rundll32.exe	31
PID 2784 wrote to memory of 2800	2784	rundll32.exe	31
PID 2800 wrote to memory of 2836	2800	rundll32.exe	32
PID 2800 wrote to memory of 2836	2800	rundll32.exe	32
PID 2800 wrote to memory of 2836	2800	rundll32.exe	32
PID 2800 wrote to memory of 2836	2800	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\Midex.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2784
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\Midex.dll,#1
  2⤵
  - Writes to the Master Boot Record (MBR)
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2800
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2800 -s 220
    3⤵
    - Program crash
    PID:2836

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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