2c5b824b34964ebb54ca71ad990a1df9989ba55686d3434de3e0d25c9353e208

Analysis

max time kernel
167s
max time network
180s
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, 10:55

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General

Target

48c66703ad4c9007d477efd7849542e5.pdf
Size

113KB
MD5

48c66703ad4c9007d477efd7849542e5
SHA1

1c78d13375b3de343d3a047e61e4aad7b8987975
SHA256

2c5b824b34964ebb54ca71ad990a1df9989ba55686d3434de3e0d25c9353e208
SHA512

cbdf1526ec074f195057ed83b5b4db1cde34955044b8f11fa644de9c87b4a924963eec7ae6c1c5adc9a76a564c136f4abc77ab8af80bbebcfec983d4ed99cdb2
SSDEEP

3072:WHWXwIdnYgcuRWE6JOJiptstBZ/D3Pp6KgXViGbguw7YA:M7U60JipgL/DfwKgXRG

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 24 IoCs

pid	Process
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3532	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe
3532	AcroRd32.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3532 wrote to memory of 380	3532	AcroRd32.exe	104
PID 3532 wrote to memory of 380	3532	AcroRd32.exe	104
PID 3532 wrote to memory of 380	3532	AcroRd32.exe	104
PID 3532 wrote to memory of 2420	3532	AcroRd32.exe	105
PID 3532 wrote to memory of 2420	3532	AcroRd32.exe	105
PID 3532 wrote to memory of 2420	3532	AcroRd32.exe	105
PID 3532 wrote to memory of 2384	3532	AcroRd32.exe	106
PID 3532 wrote to memory of 2384	3532	AcroRd32.exe	106
PID 3532 wrote to memory of 2384	3532	AcroRd32.exe	106
PID 3532 wrote to memory of 2916	3532	AcroRd32.exe	107
PID 3532 wrote to memory of 2916	3532	AcroRd32.exe	107
PID 3532 wrote to memory of 2916	3532	AcroRd32.exe	107
PID 3532 wrote to memory of 4260	3532	AcroRd32.exe	108
PID 3532 wrote to memory of 4260	3532	AcroRd32.exe	108
PID 3532 wrote to memory of 4260	3532	AcroRd32.exe	108

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\48c66703ad4c9007d477efd7849542e5.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:3532
- 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:380
- 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:2420
- 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:2384
- 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:2916
- 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:4260

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