11a9d20b2be97f4170b655c3ef2f727174a6b46a28ac94182b122adc39220c5e

Analysis

max time kernel
275s
max time network
344s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
27-11-2022 02:57

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General

Target

ͬļ/4.¼10 ïͬ㹤.pdf
Size

142KB
MD5

e63aac8f15b43dfab5b6863aede10196
SHA1

bf6e9606813f647bc8e50cad4600fb4b1899f4fe
SHA256

03fe55328bbf46c86a21ae2797d9df0128a10c8f034885d085e35f64b8cc73d7
SHA512

12abc77df616f655cd614173155d655d5518a2228df5b638f0400355f6a7c147b485a2c1769cd4f9ca292e378dd3c82c46f02e759ea9f33cf2510a9241c29302
SSDEEP

3072:Q9++KW/Kmu70x2MyEdOERq/GZbzvnMLbB0Ts+a0v:Q9++KW/X2ubqYzvnMLbm1aE

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-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

AcroRd32.exe

pid process

4244 AcroRd32.exe
Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

AcroRd32.exe

pid process

4244 AcroRd32.exe
4244 AcroRd32.exe
4244 AcroRd32.exe
4244 AcroRd32.exe

pid	process
4244	AcroRd32.exe

pid	process
4244	AcroRd32.exe
4244	AcroRd32.exe
4244	AcroRd32.exe
4244	AcroRd32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

AcroRd32.exe

description	pid	process	target process
PID 4244 wrote to memory of 4352	4244	AcroRd32.exe	RdrCEF.exe
PID 4244 wrote to memory of 4352	4244	AcroRd32.exe	RdrCEF.exe
PID 4244 wrote to memory of 4352	4244	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\ͬļ\4.¼10 ïͬ㹤.pdf"
1⤵
- Checks processor information in registry
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4244
- 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:4352

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

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Downloads

memory/4352-132-0x0000000000000000-mapping.dmp

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