165f6fac0d54ff566b26e3b34d826d55da82bfc0b0ac3ff15d1592a55f02a57d

Analysis

max time kernel
167s
max time network
180s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
19/12/2023, 11:35

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General

Target

1564eef58a94d71e74d11c2ec67f21fc.pdf
Size

74KB
MD5

1564eef58a94d71e74d11c2ec67f21fc
SHA1

5de53e78a3b9ba3ef0d07cf8347e906d69d9b002
SHA256

165f6fac0d54ff566b26e3b34d826d55da82bfc0b0ac3ff15d1592a55f02a57d
SHA512

83da526903d80819422ef3bb2f0d4ab5ed745cced42f02f78d1d5e90820c4505497a4d196a229fa08af1530131be75f4c8a79640d45636136a84770518e5ec43
SSDEEP

1536:kxEIcmN7JSwD/c1eM8RKZdWzLzwQX+WkNpOP8IsnxiiCWd/xtmBPmxwC:aExUt0eM8jLzwcPS8iPZkE

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

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

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2692	AcroRd32.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2692	AcroRd32.exe
2692	AcroRd32.exe
2692	AcroRd32.exe
2692	AcroRd32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2692 wrote to memory of 1512	2692	AcroRd32.exe	95
PID 2692 wrote to memory of 1512	2692	AcroRd32.exe	95
PID 2692 wrote to memory of 1512	2692	AcroRd32.exe	95

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\1564eef58a94d71e74d11c2ec67f21fc.pdf"
1⤵
- Checks processor information in registry
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2692
- 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:1512

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Windows 7 deprecation

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