a816f159a6b671f77e210ea541cb896fd80efb913d73b946cd7ce50c021eb775

Analysis

max time kernel
194s
max time network
210s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
11/11/2023, 14:09

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General

Target

NEAS.66fa30385bcc36d0204f9b2460da7250.pdf
Size

71KB
MD5

66fa30385bcc36d0204f9b2460da7250
SHA1

8fd67dcd4402845a5bd01ec3dc720488f441c1de
SHA256

a816f159a6b671f77e210ea541cb896fd80efb913d73b946cd7ce50c021eb775
SHA512

1ef8cb3175075b572582f43553daeee41371d2de3623fe3f3721a6e6ebc5da1fb0fc8954659ffa9862da43b26d4f7294439fe5bdb8208106f26b161b0f5c5f7b
SSDEEP

1536:TPaPTYKQEHEQ12G31AyxWQVhrdaQfnPBlDjn:7as5EH517BBaQxV

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-1-5-21-1114462139-3090196418-29517368-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1720	AcroRd32.exe
1720	AcroRd32.exe
1720	AcroRd32.exe
1720	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1720	AcroRd32.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1720	AcroRd32.exe
1720	AcroRd32.exe
1720	AcroRd32.exe
1720	AcroRd32.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1720 wrote to memory of 2576	1720	AcroRd32.exe	98
PID 1720 wrote to memory of 2576	1720	AcroRd32.exe	98
PID 1720 wrote to memory of 2576	1720	AcroRd32.exe	98
PID 1720 wrote to memory of 1468	1720	AcroRd32.exe	102
PID 1720 wrote to memory of 1468	1720	AcroRd32.exe	102
PID 1720 wrote to memory of 1468	1720	AcroRd32.exe	102
PID 1720 wrote to memory of 5020	1720	AcroRd32.exe	104
PID 1720 wrote to memory of 5020	1720	AcroRd32.exe	104
PID 1720 wrote to memory of 5020	1720	AcroRd32.exe	104
PID 1720 wrote to memory of 1560	1720	AcroRd32.exe	105
PID 1720 wrote to memory of 1560	1720	AcroRd32.exe	105
PID 1720 wrote to memory of 1560	1720	AcroRd32.exe	105
PID 1720 wrote to memory of 1568	1720	AcroRd32.exe	106
PID 1720 wrote to memory of 1568	1720	AcroRd32.exe	106
PID 1720 wrote to memory of 1568	1720	AcroRd32.exe	106

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\NEAS.66fa30385bcc36d0204f9b2460da7250.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:1720
- 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:2576
- 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:1468
- 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:5020
- 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:1560
- 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:1568

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
56KB

MD5
752a1f26b18748311b691c7d8fc20633

SHA1
c1f8e83eebc1cc1e9b88c773338eb09ff82ab862

SHA256
111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131

SHA512
a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5

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

Filesize
36KB

MD5
b30d3becc8731792523d599d949e63f5

SHA1
19350257e42d7aee17fb3bf139a9d3adb330fad4

SHA256
b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3

SHA512
523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e

Download Submit