b2b298d7141357647bb144ea8aa62737733e336f385ea802e614ecf9764b5a9f

Analysis

max time kernel
146s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
27/11/2022, 21:25

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General

Target

b2b298d7141357647bb144ea8aa62737733e336f385ea802e614ecf9764b5a9f.exe
Size

7.9MB
MD5

8949b8ba5aaa5fe716e860d90d4cfedb
SHA1

1eb29684b83e0d12cd9dbb9546668e7f14c21207
SHA256

b2b298d7141357647bb144ea8aa62737733e336f385ea802e614ecf9764b5a9f
SHA512

32513ef8fb94d737c78cdaf0b8b832307314b2a33a95c642409b4042dc18691fd1aa1a1a0cd468065d5b3bf11976ea1b32fb49b51ed5cee60f4172af4bc073e4
SSDEEP

196608:Brg5GjqMEnMgvs/s7veVyzXAl0xog7h9gb/ChVdV6pFrXhKNn7R+:S5JMUMgveszeVwIQv9WK9KrINn7A

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/0x0007000000005c50-55.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2036	b2b298d7141357647bb144ea8aa62737733e336f385ea802e614ecf9764b5a9f.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	b2b298d7141357647bb144ea8aa62737733e336f385ea802e614ecf9764b5a9f.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	b2b298d7141357647bb144ea8aa62737733e336f385ea802e614ecf9764b5a9f.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	b2b298d7141357647bb144ea8aa62737733e336f385ea802e614ecf9764b5a9f.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2036	b2b298d7141357647bb144ea8aa62737733e336f385ea802e614ecf9764b5a9f.exe

C:\Users\Admin\AppData\Local\Temp\b2b298d7141357647bb144ea8aa62737733e336f385ea802e614ecf9764b5a9f.exe
"C:\Users\Admin\AppData\Local\Temp\b2b298d7141357647bb144ea8aa62737733e336f385ea802e614ecf9764b5a9f.exe"
1⤵
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
- Checks processor information in registry
- Suspicious use of SetWindowsHookEx
PID:2036

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x484
1⤵
PID:616

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\nkk6587.tmp

Filesize
172KB

MD5
685f1cbd4af30a1d0c25f252d399a666

SHA1
6a1b978f5e6150b88c8634146f1406ed97d2f134

SHA256
0e478c95a7a07570a69e6061e7c1da9001bccad9cc454f2ed4da58824a13e0f4

SHA512
6555ad6b4f4f26105ca8aad64501d74519a3e091f559b4b563d6ffb20a2ddfcde65e4fe94971a9bc65e86db577f2548ca00f9920d341c8ea808b04c0947d61d9

Download Submit
memory/2036-54-0x0000000076151000-0x0000000076153000-memory.dmp

Filesize
8KB

Download
memory/2036-56-0x0000000000220000-0x0000000000293000-memory.dmp

Filesize
460KB

Download
memory/2036-57-0x00000000032A0000-0x000000000357E000-memory.dmp

Filesize
2.9MB

Download
memory/2036-58-0x0000000000878000-0x0000000000889000-memory.dmp

Filesize
68KB

Download
memory/2036-59-0x00000000032A0000-0x000000000357E000-memory.dmp

Filesize
2.9MB

Download
memory/2036-60-0x0000000000220000-0x0000000000293000-memory.dmp

Filesize
460KB

Download