b91b01e4acfe0e17ec0abbd32e27b0c74dd3190dbb71e49e7da4ee11a0e6200a

Analysis

max time kernel
43s
max time network
48s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
11-10-2022 02:17

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General

Target

b91b01e4acfe0e17ec0abbd32e27b0c74dd3190dbb71e49e7da4ee11a0e6200a.exe
Size

718KB
MD5

6d7a3f93f6a9b246ed06e1fceaec9056
SHA1

82ed5b3e6e805cd6ed26fd979a30823a26e42c1a
SHA256

b91b01e4acfe0e17ec0abbd32e27b0c74dd3190dbb71e49e7da4ee11a0e6200a
SHA512

0f1ccab513c9625920c10049bf7ec3ab04081f7d849edfc368daf34272dba5ea9301c0928ab4f0e7fad967c1d58883377d32e856c9bacea0c0a1947fe472c357
SSDEEP

12288:SCmuVzYKj86sdorLPmf+UN/lYzJTN5lg0J+j3hzneWCh7voq1muel/Hk4j2LhrKz:SgpYOKKKmU5lMTN5lrgOToq/54jGo

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

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	b91b01e4acfe0e17ec0abbd32e27b0c74dd3190dbb71e49e7da4ee11a0e6200a.exe

Modifies registry class 3 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile"	b91b01e4acfe0e17ec0abbd32e27b0c74dd3190dbb71e49e7da4ee11a0e6200a.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.key	b91b01e4acfe0e17ec0abbd32e27b0c74dd3190dbb71e49e7da4ee11a0e6200a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\	b91b01e4acfe0e17ec0abbd32e27b0c74dd3190dbb71e49e7da4ee11a0e6200a.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1016	b91b01e4acfe0e17ec0abbd32e27b0c74dd3190dbb71e49e7da4ee11a0e6200a.exe

C:\Users\Admin\AppData\Local\Temp\b91b01e4acfe0e17ec0abbd32e27b0c74dd3190dbb71e49e7da4ee11a0e6200a.exe
"C:\Users\Admin\AppData\Local\Temp\b91b01e4acfe0e17ec0abbd32e27b0c74dd3190dbb71e49e7da4ee11a0e6200a.exe"
1⤵
- Writes to the Master Boot Record (MBR)
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:1016

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

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Downloads

memory/1016-56-0x0000000000400000-0x0000000000544000-memory.dmp

Filesize
1.3MB

Download
memory/1016-57-0x00000000024F0000-0x00000000024FA000-memory.dmp

Filesize
40KB

Download
memory/1016-58-0x0000000000400000-0x0000000000544000-memory.dmp

Filesize
1.3MB

Download