52bcbc14911c03524cb2641d07e29ee16125a2e18493aac3e8980d38edcc9c6c

Analysis

max time kernel
158s
max time network
165s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
11/10/2023, 16:17

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General

Target

NEAS.0604b1ae95cfcd1a56e43a580b2f7000_JC.pdf
Size

65KB
MD5

0604b1ae95cfcd1a56e43a580b2f7000
SHA1

cd4a5fd9d66f33e9fe5e2c6d43ffb1faeab1a51b
SHA256

52bcbc14911c03524cb2641d07e29ee16125a2e18493aac3e8980d38edcc9c6c
SHA512

6b83c60f075ef0405ee2b85cbc8ca81c50b448c776b6b36438979409897005368cf0bebcea97c637d775816a79c5d039ad7d713b772f608cf61d4d83f0b2ce10
SSDEEP

1536:uof6B/I/7UHmCSZ6MT0ejBsmNGojvRPv0q5p/kw:uofU/IU3o6MT0eFNGYRPvzKw

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-1-5-21-1574508946-349927670-1185736483-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4336	AcroRd32.exe
4336	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4336	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4336	AcroRd32.exe
4336	AcroRd32.exe
4336	AcroRd32.exe
4336	AcroRd32.exe
4336	AcroRd32.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4336 wrote to memory of 1500	4336	AcroRd32.exe	95
PID 4336 wrote to memory of 1500	4336	AcroRd32.exe	95
PID 4336 wrote to memory of 1500	4336	AcroRd32.exe	95
PID 4336 wrote to memory of 4080	4336	AcroRd32.exe	96
PID 4336 wrote to memory of 4080	4336	AcroRd32.exe	96
PID 4336 wrote to memory of 4080	4336	AcroRd32.exe	96
PID 4336 wrote to memory of 4284	4336	AcroRd32.exe	97
PID 4336 wrote to memory of 4284	4336	AcroRd32.exe	97
PID 4336 wrote to memory of 4284	4336	AcroRd32.exe	97
PID 4336 wrote to memory of 3732	4336	AcroRd32.exe	98
PID 4336 wrote to memory of 3732	4336	AcroRd32.exe	98
PID 4336 wrote to memory of 3732	4336	AcroRd32.exe	98

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.0604b1ae95cfcd1a56e43a580b2f7000_JC.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:4336
- 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:1500
- 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:4080
- 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:4284
- 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:3732

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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