baf21e7daf84e3240a77c41fe4b625f26be281ca073c40bfd7888114279d40cb

Analysis

max time kernel
172s
max time network
185s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
19/12/2023, 21:59

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General

Target

af1886291da89aa093e86e2628c1b1ef.pdf
Size

79KB
MD5

af1886291da89aa093e86e2628c1b1ef
SHA1

944f4e371cd0b648a278bb94cfdf6071a0988849
SHA256

baf21e7daf84e3240a77c41fe4b625f26be281ca073c40bfd7888114279d40cb
SHA512

4acae31e03a696975c1f69727099dd8a318166967ed1decda303ce2ee842c0de77b389a68d53f9d3de6ae7d4bbeb2f348bd30c5130b980973789a5c0862ea081
SSDEEP

1536:x1PKFQV12eZojmF9PnW5FNKHoWsK8MWXPqPpWcGZgLEv2lcJ4aHnhdxENcx5:XTV1MjmFVnSFNUo2qXSphGZgiJ4aHnhN

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	AcroRd32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	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
5000	AcroRd32.exe
5000	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
5000	AcroRd32.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
5000	AcroRd32.exe
5000	AcroRd32.exe
5000	AcroRd32.exe
5000	AcroRd32.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 5000 wrote to memory of 4084	5000	AcroRd32.exe	97
PID 5000 wrote to memory of 4084	5000	AcroRd32.exe	97
PID 5000 wrote to memory of 4084	5000	AcroRd32.exe	97
PID 5000 wrote to memory of 2568	5000	AcroRd32.exe	98
PID 5000 wrote to memory of 2568	5000	AcroRd32.exe	98
PID 5000 wrote to memory of 2568	5000	AcroRd32.exe	98
PID 5000 wrote to memory of 4500	5000	AcroRd32.exe	99
PID 5000 wrote to memory of 4500	5000	AcroRd32.exe	99
PID 5000 wrote to memory of 4500	5000	AcroRd32.exe	99
PID 5000 wrote to memory of 4968	5000	AcroRd32.exe	100
PID 5000 wrote to memory of 4968	5000	AcroRd32.exe	100
PID 5000 wrote to memory of 4968	5000	AcroRd32.exe	100

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\af1886291da89aa093e86e2628c1b1ef.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:5000
- 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:4084
- 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:2568
- 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:4500
- 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:4968

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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