a1ce4f0788eefb8e02dee3dd6c33d324fdc97f5e552b2397d5849a2f500ba80c

Analysis

max time kernel
152s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
24-11-2022 09:52

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General

Target

a1ce4f0788eefb8e02dee3dd6c33d324fdc97f5e552b2397d5849a2f500ba80c.exe
Size

7.5MB
MD5

4a0766f42d528e507f6ea48555a07d0d
SHA1

cb6857fff98952495f212eece98a9e3dc190bf3b
SHA256

a1ce4f0788eefb8e02dee3dd6c33d324fdc97f5e552b2397d5849a2f500ba80c
SHA512

fda37ab168feaeb8e9b4e50737bcf99bd3fb794037dbe259115df467dccb685a808fe7e3dd59c9b57be867205d891d44259e05ee8e8452ab005287f11cfee706
SSDEEP

196608:frg5GjqMEnMgvs/s7veVyzXgPgh8N7ZQSX6UpgDdDOZ/y:c5JMUMgveszeVwQkc9zmdyg

Score

9^/10

bootkit persistence

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 2 IoCs

Detects file using ACProtect software.

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\moi9281.tmp	acprotect
C:\Users\Admin\AppData\Local\Temp\moi9281.tmp	acprotect

Loads dropped DLL 2 IoCs

Processes:

a1ce4f0788eefb8e02dee3dd6c33d324fdc97f5e552b2397d5849a2f500ba80c.exe

pid	process
4828	a1ce4f0788eefb8e02dee3dd6c33d324fdc97f5e552b2397d5849a2f500ba80c.exe
4828	a1ce4f0788eefb8e02dee3dd6c33d324fdc97f5e552b2397d5849a2f500ba80c.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

Processes:

a1ce4f0788eefb8e02dee3dd6c33d324fdc97f5e552b2397d5849a2f500ba80c.exe

description ioc process

File opened for modification \??\PhysicalDrive0 a1ce4f0788eefb8e02dee3dd6c33d324fdc97f5e552b2397d5849a2f500ba80c.exe

description	ioc	process
File opened for modification	\??\PhysicalDrive0	a1ce4f0788eefb8e02dee3dd6c33d324fdc97f5e552b2397d5849a2f500ba80c.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

a1ce4f0788eefb8e02dee3dd6c33d324fdc97f5e552b2397d5849a2f500ba80c.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	a1ce4f0788eefb8e02dee3dd6c33d324fdc97f5e552b2397d5849a2f500ba80c.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	a1ce4f0788eefb8e02dee3dd6c33d324fdc97f5e552b2397d5849a2f500ba80c.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

a1ce4f0788eefb8e02dee3dd6c33d324fdc97f5e552b2397d5849a2f500ba80c.exe

pid process

4828 a1ce4f0788eefb8e02dee3dd6c33d324fdc97f5e552b2397d5849a2f500ba80c.exe

C:\Users\Admin\AppData\Local\Temp\a1ce4f0788eefb8e02dee3dd6c33d324fdc97f5e552b2397d5849a2f500ba80c.exe
"C:\Users\Admin\AppData\Local\Temp\a1ce4f0788eefb8e02dee3dd6c33d324fdc97f5e552b2397d5849a2f500ba80c.exe"
1⤵
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
- Checks processor information in registry
- Suspicious use of SetWindowsHookEx
PID:4828

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Bootkit

T1067

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\moi9281.tmp
Filesize
172KB

MD5
685f1cbd4af30a1d0c25f252d399a666

SHA1
6a1b978f5e6150b88c8634146f1406ed97d2f134

SHA256
0e478c95a7a07570a69e6061e7c1da9001bccad9cc454f2ed4da58824a13e0f4

SHA512
6555ad6b4f4f26105ca8aad64501d74519a3e091f559b4b563d6ffb20a2ddfcde65e4fe94971a9bc65e86db577f2548ca00f9920d341c8ea808b04c0947d61d9

Download Submit
C:\Users\Admin\AppData\Local\Temp\moi9281.tmp
Filesize
172KB

MD5
685f1cbd4af30a1d0c25f252d399a666

SHA1
6a1b978f5e6150b88c8634146f1406ed97d2f134

SHA256
0e478c95a7a07570a69e6061e7c1da9001bccad9cc454f2ed4da58824a13e0f4

SHA512
6555ad6b4f4f26105ca8aad64501d74519a3e091f559b4b563d6ffb20a2ddfcde65e4fe94971a9bc65e86db577f2548ca00f9920d341c8ea808b04c0947d61d9

Download Submit
memory/4828-134-0x0000000000C70000-0x0000000000CE3000-memory.dmp

Filesize
460KB

Download
memory/4828-135-0x0000000002ED0000-0x00000000031AE000-memory.dmp

Filesize
2.9MB

Download
memory/4828-136-0x0000000002ED0000-0x00000000031AE000-memory.dmp

Filesize
2.9MB

Download
memory/4828-137-0x000000000077C000-0x0000000000782000-memory.dmp

Filesize
24KB

Download
memory/4828-138-0x0000000000747000-0x000000000076D000-memory.dmp

Filesize
152KB

Download
memory/4828-139-0x000000000075C000-0x000000000075E000-memory.dmp

Filesize
8KB

Download
memory/4828-140-0x000000000075C000-0x000000000075E000-memory.dmp

Filesize
8KB

Download
memory/4828-141-0x0000000000C70000-0x0000000000CE3000-memory.dmp

Filesize
460KB

Download