33216245b3f8646a768f5d1604422d1395015a980157d589beae855cf4d4b59c

Analysis

max time kernel
185s
max time network
199s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
07/01/2024, 13:56

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General

Target

49280947cd5f87c8bcd9c5fe73ae481e.pdf
Size

97KB
MD5

49280947cd5f87c8bcd9c5fe73ae481e
SHA1

03aa71af3a4d576f9172ca3fac3e9164cc17a116
SHA256

33216245b3f8646a768f5d1604422d1395015a980157d589beae855cf4d4b59c
SHA512

9b95e01c6c7ff121e5b7b5dc7026e7d348938754b4b511c9b1083c3c5a104652856a24ab614768d69768acba9268777c498ffa1269654b0c93a90945d6a7b706
SSDEEP

1536:nQMvu+M4EROgv7SFK9DJ/oUjluN1AXUqk4TMXtW3aFZ/CSYWCWWY05W8pO+m5Lv:QMvJMnv+Ek/NiXo0aFtCS9M4+e

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 behavior: EnumeratesProcesses 24 IoCs

pid	Process
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4916	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4916 wrote to memory of 2232	4916	AcroRd32.exe	97
PID 4916 wrote to memory of 2232	4916	AcroRd32.exe	97
PID 4916 wrote to memory of 2232	4916	AcroRd32.exe	97
PID 4916 wrote to memory of 4552	4916	AcroRd32.exe	101
PID 4916 wrote to memory of 4552	4916	AcroRd32.exe	101
PID 4916 wrote to memory of 4552	4916	AcroRd32.exe	101
PID 4916 wrote to memory of 2364	4916	AcroRd32.exe	102
PID 4916 wrote to memory of 2364	4916	AcroRd32.exe	102
PID 4916 wrote to memory of 2364	4916	AcroRd32.exe	102
PID 4916 wrote to memory of 4264	4916	AcroRd32.exe	104
PID 4916 wrote to memory of 4264	4916	AcroRd32.exe	104
PID 4916 wrote to memory of 4264	4916	AcroRd32.exe	104
PID 4916 wrote to memory of 3696	4916	AcroRd32.exe	105
PID 4916 wrote to memory of 3696	4916	AcroRd32.exe	105
PID 4916 wrote to memory of 3696	4916	AcroRd32.exe	105

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\49280947cd5f87c8bcd9c5fe73ae481e.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:4916
- 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:2232
- 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:4552
- 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:2364
- 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:4264
- 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:3696

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

Filesize
56KB

MD5
752a1f26b18748311b691c7d8fc20633

SHA1
c1f8e83eebc1cc1e9b88c773338eb09ff82ab862

SHA256
111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131

SHA512
a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5

Download Submit