ea20057b28e9ec9541c7b11904c3023e908120376500148263b25e9883d7b9eb

Analysis

max time kernel
47s
max time network
52s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
05/12/2022, 05:49

Target

ea20057b28e9ec9541c7b11904c3023e908120376500148263b25e9883d7b9eb.dll
Size

84KB
MD5

a02d0b5ce100ae70166d059779fc0cbe
SHA1

086790633091498460628a7d09065b997f0d8f1a
SHA256

ea20057b28e9ec9541c7b11904c3023e908120376500148263b25e9883d7b9eb
SHA512

297c1011d347ef1ca6c2190fce1d88d764f341a360162592783170b32555c5280d14177953535876f78e795ac774f14c623726f6a972ae59c37ff4c40b805e63
SSDEEP

1536:XI6MkQBrH/00X4KNp/Itjz2JlrwTTPNoDwxcC6jHFv9FlF9BFfYRKYqgnqR:YKQBrHV1NxItPxO0xL6jHL/F9BRqKY5a

Score

6^/10

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

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

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

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1112	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1768 wrote to memory of 1112	1768	rundll32.exe	27
PID 1768 wrote to memory of 1112	1768	rundll32.exe	27
PID 1768 wrote to memory of 1112	1768	rundll32.exe	27
PID 1768 wrote to memory of 1112	1768	rundll32.exe	27
PID 1768 wrote to memory of 1112	1768	rundll32.exe	27
PID 1768 wrote to memory of 1112	1768	rundll32.exe	27
PID 1768 wrote to memory of 1112	1768	rundll32.exe	27

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ea20057b28e9ec9541c7b11904c3023e908120376500148263b25e9883d7b9eb.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1768
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ea20057b28e9ec9541c7b11904c3023e908120376500148263b25e9883d7b9eb.dll,#1
  2⤵
  - Writes to the Master Boot Record (MBR)
  - Suspicious behavior: EnumeratesProcesses
  PID:1112

Initial Access

Execution

Persistence

Bootkit

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

memory/1112-55-0x0000000076961000-0x0000000076963000-memory.dmp

Filesize
8KB

Download
memory/1112-56-0x0000000000170000-0x0000000000179000-memory.dmp

Filesize
36KB

Download
memory/1112-59-0x0000000000170000-0x0000000000179000-memory.dmp

Filesize
36KB

Download