6cc8a916f95b61701830dc2178a491c99db54b4f0536e71efa2781b787e8583e

Analysis

max time kernel
35s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
02-12-2022 22:37

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General

Target

6cc8a916f95b61701830dc2178a491c99db54b4f0536e71efa2781b787e8583e.exe
Size

664KB
MD5

41a2532cd8062f77ee60008c60efaf28
SHA1

4cbd94ed52f1b04ae3ccecdd6bde884a7061c716
SHA256

6cc8a916f95b61701830dc2178a491c99db54b4f0536e71efa2781b787e8583e
SHA512

63acacd023dad401bf00ce89e7efbd60b5081d1b748f93a44925ba6737a3987b9e538ccd5076a14ac106f7f2d1e51afe856c16d970552bf2087ee08b71da7b85
SSDEEP

12288:eqIE9tOJJyF/SCDvyRtb5p+n0Qyxi+7MA9VzYKj86sZ8oK3:1lE2F/JDvWb5p+n0Nic99pYOzoo

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	6cc8a916f95b61701830dc2178a491c99db54b4f0536e71efa2781b787e8583e.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1676	1788	WerFault.exe	19

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.key	6cc8a916f95b61701830dc2178a491c99db54b4f0536e71efa2781b787e8583e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\	6cc8a916f95b61701830dc2178a491c99db54b4f0536e71efa2781b787e8583e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile"	6cc8a916f95b61701830dc2178a491c99db54b4f0536e71efa2781b787e8583e.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1788 wrote to memory of 1676	1788	6cc8a916f95b61701830dc2178a491c99db54b4f0536e71efa2781b787e8583e.exe	28
PID 1788 wrote to memory of 1676	1788	6cc8a916f95b61701830dc2178a491c99db54b4f0536e71efa2781b787e8583e.exe	28
PID 1788 wrote to memory of 1676	1788	6cc8a916f95b61701830dc2178a491c99db54b4f0536e71efa2781b787e8583e.exe	28
PID 1788 wrote to memory of 1676	1788	6cc8a916f95b61701830dc2178a491c99db54b4f0536e71efa2781b787e8583e.exe	28

C:\Users\Admin\AppData\Local\Temp\6cc8a916f95b61701830dc2178a491c99db54b4f0536e71efa2781b787e8583e.exe
"C:\Users\Admin\AppData\Local\Temp\6cc8a916f95b61701830dc2178a491c99db54b4f0536e71efa2781b787e8583e.exe"
1⤵
- Writes to the Master Boot Record (MBR)
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1788
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1788 -s 216
  2⤵
  - Program crash
  PID:1676

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/1788-54-0x0000000000400000-0x00000000004EA000-memory.dmp

Filesize
936KB

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memory/1788-56-0x0000000000400000-0x00000000004EA000-memory.dmp

Filesize
936KB

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