1defd596b615d3070fa7ea601884a56a1d28eee2ed57a091d7d60166095b4f64

Analysis

max time kernel
154s
max time network
159s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
29/11/2022, 10:30

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

1defd596b615d3070fa7ea601884a56a1d28eee2ed57a091d7d60166095b4f64.dll
Size

437KB
MD5

752d2b30cf69945cf365ef56b0633e70
SHA1

0a1e107db4f2d0ffb3e0b6d758ec2d28e0cd470d
SHA256

1defd596b615d3070fa7ea601884a56a1d28eee2ed57a091d7d60166095b4f64
SHA512

f63ef45ed0186f13536e0b74f05326e9976399ec3403f41ff2b40b50329535fc2d037a0ac3177150fe57ffcfe9418226c45363986bb583e3855ae9a2668c02f6
SSDEEP

6144:AO/AhcWoi8yw1NJEi1OrEduMuGbzIW4FmNiI8Gotpul3Z5X38xcL:AcAhcWotJ1NWvOTuG3WYNctMlp5cxcL

Score

8^/10

bootkit persistence

Malware Config

Signatures

Blocklisted process makes network request 9 IoCs

flow	pid	Process
6	1360	rundll32.exe
8	1360	rundll32.exe
10	1360	rundll32.exe
11	1360	rundll32.exe
12	1360	rundll32.exe
13	1360	rundll32.exe
14	1360	rundll32.exe
15	1360	rundll32.exe
17	1360	rundll32.exe

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

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

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\-7267-24	rundll32.exe
File created	C:\Windows\SysWOW64\032d2e	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2020 wrote to memory of 1360	2020	rundll32.exe	16
PID 2020 wrote to memory of 1360	2020	rundll32.exe	16
PID 2020 wrote to memory of 1360	2020	rundll32.exe	16
PID 2020 wrote to memory of 1360	2020	rundll32.exe	16
PID 2020 wrote to memory of 1360	2020	rundll32.exe	16
PID 2020 wrote to memory of 1360	2020	rundll32.exe	16
PID 2020 wrote to memory of 1360	2020	rundll32.exe	16

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1defd596b615d3070fa7ea601884a56a1d28eee2ed57a091d7d60166095b4f64.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2020
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\1defd596b615d3070fa7ea601884a56a1d28eee2ed57a091d7d60166095b4f64.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Writes to the Master Boot Record (MBR)
  - Drops file in System32 directory
  PID:1360

Network

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

Loading Replay Monitor...

Downloads

memory/1360-55-0x00000000751A1000-0x00000000751A3000-memory.dmp

Filesize
8KB

Download