b76fdd77311cd953cfe9307ee78a02e5212e5a27bed63115c16c38a8044d45db

Resubmissions

07-03-2022 14:01

220307-rbv2taabdj 3

07-03-2022 13:56

220307-q8ynjafcd3 3

Analysis

max time kernel
170s
max time network
176s
platform
windows10-2004_x64
resource
win10v2004-en-20220112
submitted
07-03-2022 13:56

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General

Target

20005_718255_XXATSCSOA.pdf
Size

60KB
MD5

069b667f36658b120f8d574e60b649e5
SHA1

a040848214ba46ee4740f2853e154f41843a6c4b
SHA256

b76fdd77311cd953cfe9307ee78a02e5212e5a27bed63115c16c38a8044d45db
SHA512

bcd219a9166a4ee0948cdf497638a0d38fc20c8783b62b4ff04792193f4f9d85c1c7a6ac970215f6e00cb5d6fcf39dc3b3d19b58929116d686b8de8f2f703b04

Score

1^/10

Malware Config

Signatures

Checks processor information in registry 2 TTPs 4 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

MusNotifyIcon.exeAcroRd32.exe

description	ioc	process
Key opened	\Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0	MusNotifyIcon.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	MusNotifyIcon.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	AcroRd32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	AcroRd32.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

AcroRd32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

AcroRd32.exe

pid process

3824 AcroRd32.exe
Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

AcroRd32.exe

pid process

3824 AcroRd32.exe
3824 AcroRd32.exe
3824 AcroRd32.exe
3824 AcroRd32.exe

pid	process
3824	AcroRd32.exe

pid	process
3824	AcroRd32.exe
3824	AcroRd32.exe
3824	AcroRd32.exe
3824	AcroRd32.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

AcroRd32.exe

description	pid	process	target process
PID 3824 wrote to memory of 4064	3824	AcroRd32.exe	RdrCEF.exe
PID 3824 wrote to memory of 4064	3824	AcroRd32.exe	RdrCEF.exe
PID 3824 wrote to memory of 4064	3824	AcroRd32.exe	RdrCEF.exe
PID 3824 wrote to memory of 1768	3824	AcroRd32.exe	RdrCEF.exe
PID 3824 wrote to memory of 1768	3824	AcroRd32.exe	RdrCEF.exe
PID 3824 wrote to memory of 1768	3824	AcroRd32.exe	RdrCEF.exe

C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\20005_718255_XXATSCSOA.pdf"
1⤵
- Checks processor information in registry
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3824

C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --backgroundcolor=16514043
2⤵
PID:4064

C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --backgroundcolor=16514043
2⤵
PID:1768

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 0
1⤵
- Checks processor information in registry
PID:2196

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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