f8a32ac14c7b141298786eee7c4dd8550f4281b1bba60bee0df1566c94ae6426

Analysis

max time kernel
157s
max time network
165s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
10/01/2024, 01:58

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General

Target

4f47bb4d7b529b2c4e2c290a94286816.pdf
Size

90KB
MD5

4f47bb4d7b529b2c4e2c290a94286816
SHA1

8957073a6787750b8d59c09fcc941e3ffd360fc9
SHA256

f8a32ac14c7b141298786eee7c4dd8550f4281b1bba60bee0df1566c94ae6426
SHA512

48a5ef72f74fc35483a816cfd578b649ffa724446b6946dd1408ca5df1e9601d49e16aa75139137cdfbd2f089790cb4fd355c561b2b0ec8dcba7ab70b4a201b6
SSDEEP

1536:xxbJTXzwTCVwX8HVN4byu/ddEUIN4YO4vHj6ZNb8gWEom1ajFYySW8pO+Fxg:/djwuiMjOyuFencMDOb8/saR9+I

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 behavior: EnumeratesProcesses 2 IoCs

pid	Process
2000	AcroRd32.exe
2000	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2000	AcroRd32.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2000	AcroRd32.exe
2000	AcroRd32.exe
2000	AcroRd32.exe
2000	AcroRd32.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2000 wrote to memory of 1300	2000	AcroRd32.exe	102
PID 2000 wrote to memory of 1300	2000	AcroRd32.exe	102
PID 2000 wrote to memory of 1300	2000	AcroRd32.exe	102
PID 2000 wrote to memory of 4404	2000	AcroRd32.exe	106
PID 2000 wrote to memory of 4404	2000	AcroRd32.exe	106
PID 2000 wrote to memory of 4404	2000	AcroRd32.exe	106
PID 2000 wrote to memory of 4200	2000	AcroRd32.exe	109
PID 2000 wrote to memory of 4200	2000	AcroRd32.exe	109
PID 2000 wrote to memory of 4200	2000	AcroRd32.exe	109
PID 2000 wrote to memory of 3040	2000	AcroRd32.exe	110
PID 2000 wrote to memory of 3040	2000	AcroRd32.exe	110
PID 2000 wrote to memory of 3040	2000	AcroRd32.exe	110

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\4f47bb4d7b529b2c4e2c290a94286816.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:2000
- 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:1300
- 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:4404
- 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:4200
- 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:3040

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

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