f510afafa8bc274807101458244358d99b71a939cafadc708d989108477e6ec9

General

Target

4d5a8bf8b8fdfcf9a9173c3c2426f80a.dll
Size

644KB
MD5

4d5a8bf8b8fdfcf9a9173c3c2426f80a
SHA1

0dc662c6e66103a402110b76e9d01ae04fb4784b
SHA256

f510afafa8bc274807101458244358d99b71a939cafadc708d989108477e6ec9
SHA512

329b8f800e680da16d9364c801f882d16d6d239e02b29f78053c86c70d006eb1a8f4f4ed2264a59892c143a0caa6342437e6822c2c1963ca5b288ea64fc45955
SSDEEP

12288:aS6lbuNIPJmri0issRfueVBLClaIfpEhKdVoG/C2ijmb6b7MP+Dd2a:alY0qGfvzLoKkoECdyi7MP+h2a

Score

6^/10

bootkit 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
3068	2088	WerFault.exe	28

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.key	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile"	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1156 wrote to memory of 2088	1156	rundll32.exe	28
PID 1156 wrote to memory of 2088	1156	rundll32.exe	28
PID 1156 wrote to memory of 2088	1156	rundll32.exe	28
PID 1156 wrote to memory of 2088	1156	rundll32.exe	28
PID 1156 wrote to memory of 2088	1156	rundll32.exe	28
PID 1156 wrote to memory of 2088	1156	rundll32.exe	28
PID 1156 wrote to memory of 2088	1156	rundll32.exe	28
PID 2088 wrote to memory of 3068	2088	rundll32.exe	29
PID 2088 wrote to memory of 3068	2088	rundll32.exe	29
PID 2088 wrote to memory of 3068	2088	rundll32.exe	29
PID 2088 wrote to memory of 3068	2088	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4d5a8bf8b8fdfcf9a9173c3c2426f80a.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1156
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\4d5a8bf8b8fdfcf9a9173c3c2426f80a.dll,#1
  2⤵
  - Writes to the Master Boot Record (MBR)
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2088
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2088 -s 256
    3⤵
    - Program crash
    PID:3068

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2088-0-0x0000000010000000-0x00000000101AB000-memory.dmp

Filesize
1.7MB

Download
memory/2088-1-0x0000000010000000-0x00000000101AB000-memory.dmp

Filesize
1.7MB

Download
memory/2088-2-0x00000000001F0000-0x0000000000220000-memory.dmp

Filesize
192KB

Download
memory/2088-4-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2088-5-0x00000000001A0000-0x00000000001A1000-memory.dmp

Filesize
4KB

Download
memory/2088-3-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2088-6-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/2088-7-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2088-10-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/2088-9-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2088-31-0x00000000009B0000-0x00000000009B1000-memory.dmp

Filesize
4KB

Download
memory/2088-30-0x00000000009C0000-0x00000000009C1000-memory.dmp

Filesize
4KB

Download
memory/2088-32-0x00000000009D0000-0x00000000009D1000-memory.dmp

Filesize
4KB

Download
memory/2088-29-0x0000000000990000-0x0000000000991000-memory.dmp

Filesize
4KB

Download
memory/2088-34-0x00000000009E0000-0x00000000009E1000-memory.dmp

Filesize
4KB

Download
memory/2088-33-0x00000000001D0000-0x00000000001D2000-memory.dmp

Filesize
8KB

Download
memory/2088-28-0x00000000009A0000-0x00000000009A1000-memory.dmp

Filesize
4KB

Download
memory/2088-27-0x0000000000930000-0x0000000000931000-memory.dmp

Filesize
4KB

Download
memory/2088-26-0x0000000000940000-0x0000000000941000-memory.dmp

Filesize
4KB

Download
memory/2088-25-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/2088-24-0x0000000000920000-0x0000000000921000-memory.dmp

Filesize
4KB

Download
memory/2088-23-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2088-22-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/2088-20-0x00000000003C0000-0x00000000003C1000-memory.dmp

Filesize
4KB

Download
memory/2088-21-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/2088-19-0x0000000000390000-0x0000000000391000-memory.dmp

Filesize
4KB

Download
memory/2088-18-0x00000000003A0000-0x00000000003A1000-memory.dmp

Filesize
4KB

Download
memory/2088-17-0x0000000000370000-0x0000000000371000-memory.dmp

Filesize
4KB

Download
memory/2088-15-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/2088-16-0x0000000000380000-0x0000000000381000-memory.dmp

Filesize
4KB

Download
memory/2088-14-0x0000000000360000-0x0000000000361000-memory.dmp

Filesize
4KB

Download
memory/2088-13-0x0000000000330000-0x0000000000331000-memory.dmp

Filesize
4KB

Download
memory/2088-11-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/2088-12-0x0000000000340000-0x0000000000341000-memory.dmp

Filesize
4KB

Download
memory/2088-8-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2088-35-0x0000000010000000-0x00000000101AB000-memory.dmp

Filesize
1.7MB

Download
memory/2088-36-0x00000000001F0000-0x0000000000220000-memory.dmp

Filesize
192KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads