655b72ec70fb1b8900966a0ebc580265bc5943a448d86cf0127d9620c55156be

General

Target

655b72ec70fb1b8900966a0ebc580265bc5943a448d86cf0127d9620c55156be.pdf
Size

40KB
MD5

95b7629530e0f820b8120df6057cbd12
SHA1

731b70a42871265a15de417c710ae7ddbe4df331
SHA256

655b72ec70fb1b8900966a0ebc580265bc5943a448d86cf0127d9620c55156be
SHA512

0c0357f620d34fedd92a288165daedabc8de4fd06339b902e018770bb7c1e7f5035b9c418ec86c3775be430dc61a69c9f43750ea49094643d179f0660e7d4b07

Score

1^/10

Malware Config

Signatures

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:

AcroRd32.exe

description	ioc	process
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-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

AcroRd32.exe

pid process

3396 AcroRd32.exe
3396 AcroRd32.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

AcroRd32.exe

pid process

3396 AcroRd32.exe
Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

AcroRd32.exe

pid process

3396 AcroRd32.exe
3396 AcroRd32.exe
3396 AcroRd32.exe
3396 AcroRd32.exe

pid	process
3396	AcroRd32.exe
3396	AcroRd32.exe

pid	process
3396	AcroRd32.exe

pid	process
3396	AcroRd32.exe
3396	AcroRd32.exe
3396	AcroRd32.exe
3396	AcroRd32.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

AcroRd32.exe

description	pid	process	target process
PID 3396 wrote to memory of 4684	3396	AcroRd32.exe	RdrCEF.exe
PID 3396 wrote to memory of 4684	3396	AcroRd32.exe	RdrCEF.exe
PID 3396 wrote to memory of 4684	3396	AcroRd32.exe	RdrCEF.exe
PID 3396 wrote to memory of 4364	3396	AcroRd32.exe	RdrCEF.exe
PID 3396 wrote to memory of 4364	3396	AcroRd32.exe	RdrCEF.exe
PID 3396 wrote to memory of 4364	3396	AcroRd32.exe	RdrCEF.exe
PID 3396 wrote to memory of 2556	3396	AcroRd32.exe	RdrCEF.exe
PID 3396 wrote to memory of 2556	3396	AcroRd32.exe	RdrCEF.exe
PID 3396 wrote to memory of 2556	3396	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\655b72ec70fb1b8900966a0ebc580265bc5943a448d86cf0127d9620c55156be.pdf"
1⤵
- Checks processor information in registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3396

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:4684

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:4364

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:2556

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2556-136-0x0000000000000000-mapping.dmp

Download
memory/4364-135-0x0000000000000000-mapping.dmp

Download
memory/4684-134-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads