805e140be428662310821767afac4deb70958e5410badc131611771dd1f02482

Analysis

max time kernel
200s
max time network
210s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
30/12/2023, 00:11

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General

Target

081d4e9335c1a02aad8ad853e818b14c.pdf
Size

87KB
MD5

081d4e9335c1a02aad8ad853e818b14c
SHA1

cd9d2af21c507171db4887eb3f02739209261363
SHA256

805e140be428662310821767afac4deb70958e5410badc131611771dd1f02482
SHA512

26ad2a03902abd2807d72057474b26f1fa9a503e845de69af35444c0e496fd067b69301c204379ab999eac58c9751d62c39578056f9034adb1a04ef0dbe088e5
SSDEEP

1536:x180mFUROlQm+fUZjMmGFuO9PxSzauaNtCZ597gbTD8TfjWYpO2H7AvU0zWg4UEt:X80VOuB8ZjM9JMah85ITIT62bAvrIfhP

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-1-5-21-635608581-3370340891-292606865-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2500	AcroRd32.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2500	AcroRd32.exe
2500	AcroRd32.exe
2500	AcroRd32.exe
2500	AcroRd32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2500 wrote to memory of 760	2500	AcroRd32.exe	100
PID 2500 wrote to memory of 760	2500	AcroRd32.exe	100
PID 2500 wrote to memory of 760	2500	AcroRd32.exe	100
PID 2500 wrote to memory of 3180	2500	AcroRd32.exe	103
PID 2500 wrote to memory of 3180	2500	AcroRd32.exe	103
PID 2500 wrote to memory of 3180	2500	AcroRd32.exe	103

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\081d4e9335c1a02aad8ad853e818b14c.pdf"
1⤵
- Checks processor information in registry
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2500
- 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:760
- 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:3180

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
36KB

MD5
b30d3becc8731792523d599d949e63f5

SHA1
19350257e42d7aee17fb3bf139a9d3adb330fad4

SHA256
b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3

SHA512
523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e

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