9a8a025b581b5d47049ce5b8888af0923739b9c895f1e12fc7879917c75e671a

Analysis

max time kernel
45s
max time network
49s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
25-11-2022 09:19

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General

Target

9a8a025b581b5d47049ce5b8888af0923739b9c895f1e12fc7879917c75e671a.exe
Size

1.3MB
MD5

01303269b47c3411fe6094c6659f8b8c
SHA1

77d2ab4d55cea7926dd4f2d50199dcb77c9b57d5
SHA256

9a8a025b581b5d47049ce5b8888af0923739b9c895f1e12fc7879917c75e671a
SHA512

135b5971b62898d946846cb8faf9e06b22f98b5b58831c97f54130908b0edfed85763a6e1f148bc9121d2da7b00657a5877c9e1538ce6c9c7ab0d95a63a6bb4c
SSDEEP

24576:FdWHYycqy2QIzGyiy9lSOuK+lyXLpaCKQshJBt663nEZOc72fD7MP+h2wI:KHFcqyb4lSBOfOc6UqI

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:

9a8a025b581b5d47049ce5b8888af0923739b9c895f1e12fc7879917c75e671a.exe

description ioc process

File opened for modification \??\PhysicalDrive0 9a8a025b581b5d47049ce5b8888af0923739b9c895f1e12fc7879917c75e671a.exe

description	ioc	process
File opened for modification	\??\PhysicalDrive0	9a8a025b581b5d47049ce5b8888af0923739b9c895f1e12fc7879917c75e671a.exe

Modifies registry class 3 IoCs

Processes:

9a8a025b581b5d47049ce5b8888af0923739b9c895f1e12fc7879917c75e671a.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\	9a8a025b581b5d47049ce5b8888af0923739b9c895f1e12fc7879917c75e671a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile"	9a8a025b581b5d47049ce5b8888af0923739b9c895f1e12fc7879917c75e671a.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.key	9a8a025b581b5d47049ce5b8888af0923739b9c895f1e12fc7879917c75e671a.exe

C:\Users\Admin\AppData\Local\Temp\9a8a025b581b5d47049ce5b8888af0923739b9c895f1e12fc7879917c75e671a.exe
"C:\Users\Admin\AppData\Local\Temp\9a8a025b581b5d47049ce5b8888af0923739b9c895f1e12fc7879917c75e671a.exe"
1⤵
- Writes to the Master Boot Record (MBR)
- Modifies registry class
PID:1760

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

T1067

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1760-54-0x0000000000400000-0x0000000000658000-memory.dmp

Filesize
2.3MB

Download
memory/1760-55-0x0000000075281000-0x0000000075283000-memory.dmp

Filesize
8KB

Download
memory/1760-56-0x0000000000320000-0x0000000000350000-memory.dmp

Filesize
192KB

Download
memory/1760-57-0x0000000000400000-0x0000000000658000-memory.dmp

Filesize
2.3MB

Download