a1ce4f0788eefb8e02dee3dd6c33d324fdc97f5e552b2397d5849a2f500ba80c

Analysis

max time kernel
107s
max time network
48s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-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 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x000c0000000054a8-55.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
1428	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

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

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

pid	Process
1428	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:1428

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x550
1⤵
PID:1640

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

T1067

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\eak629.tmp

Filesize
172KB

MD5
685f1cbd4af30a1d0c25f252d399a666

SHA1
6a1b978f5e6150b88c8634146f1406ed97d2f134

SHA256
0e478c95a7a07570a69e6061e7c1da9001bccad9cc454f2ed4da58824a13e0f4

SHA512
6555ad6b4f4f26105ca8aad64501d74519a3e091f559b4b563d6ffb20a2ddfcde65e4fe94971a9bc65e86db577f2548ca00f9920d341c8ea808b04c0947d61d9

Download Submit
memory/1428-54-0x0000000075071000-0x0000000075073000-memory.dmp

Filesize
8KB

Download
memory/1428-56-0x0000000000320000-0x0000000000393000-memory.dmp

Filesize
460KB

Download
memory/1428-57-0x0000000000858000-0x0000000000869000-memory.dmp

Filesize
68KB

Download
memory/1428-58-0x00000000031A0000-0x000000000347E000-memory.dmp

Filesize
2.9MB

Download
memory/1428-59-0x00000000031A0000-0x000000000347E000-memory.dmp

Filesize
2.9MB

Download