3ddde3e3ac0a5c7c59e6d426dfd2df4a127143b2b0726458f3aa97472d5a79a6

Analysis

max time kernel
31s
max time network
33s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
22-03-2023 22:02

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General

Target

3ddde3e3ac0a5c7c59e6d426dfd2df4a127143b2b0726458f3aa97472d5a79a6.dll
Size

4.3MB
MD5

ebf40445d67bcf7c29cb2bfd944ca5c4
SHA1

4007bf210fc5dedc273cc67dc7953827036f8ffa
SHA256

3ddde3e3ac0a5c7c59e6d426dfd2df4a127143b2b0726458f3aa97472d5a79a6
SHA512

6965f67d126ab48c22b272f95a9e83ef092a324b4b6680d8f752610ebe16cdcc4538c4263b817266de89f87999bbd4e1ac31c4d7e4de033865cc3c6fd34c49d7
SSDEEP

98304:oNCScSzHabPG1f5edlM/Cw/khc5FbKEQ26PVR7m6gZ1MRGNCyI5AxV3001fikq3s:yOohedlM/Cw/khc5FbKEV6PVR7m6gZ1V

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
T1067

Processes:

rundll32.exe

description ioc process

File opened for modification \??\PhysicalDrive0 rundll32.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2008 1348 WerFault.exe rundll32.exe

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

pid	pid_target	process	target process
2008	1348	WerFault.exe	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 1604 wrote to memory of 1348	1604	rundll32.exe	rundll32.exe
PID 1604 wrote to memory of 1348	1604	rundll32.exe	rundll32.exe
PID 1604 wrote to memory of 1348	1604	rundll32.exe	rundll32.exe
PID 1604 wrote to memory of 1348	1604	rundll32.exe	rundll32.exe
PID 1604 wrote to memory of 1348	1604	rundll32.exe	rundll32.exe
PID 1604 wrote to memory of 1348	1604	rundll32.exe	rundll32.exe
PID 1604 wrote to memory of 1348	1604	rundll32.exe	rundll32.exe
PID 1348 wrote to memory of 2008	1348	rundll32.exe	WerFault.exe
PID 1348 wrote to memory of 2008	1348	rundll32.exe	WerFault.exe
PID 1348 wrote to memory of 2008	1348	rundll32.exe	WerFault.exe
PID 1348 wrote to memory of 2008	1348	rundll32.exe	WerFault.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3ddde3e3ac0a5c7c59e6d426dfd2df4a127143b2b0726458f3aa97472d5a79a6.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1604

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3ddde3e3ac0a5c7c59e6d426dfd2df4a127143b2b0726458f3aa97472d5a79a6.dll,#1
2⤵
- Writes to the Master Boot Record (MBR)
- Suspicious use of WriteProcessMemory
PID:1348

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1348 -s 364
3⤵
- Program crash
PID:2008

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Bootkit

T1067

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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