4cb24dc46f2d856f2050a3f97bad6bed82263ea9237e82cf7d5e6504ac201994

Analysis

max time kernel
163s
max time network
174s
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 10:39

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General

Target

0a650256854cb7e676f31cd360282818.pdf
Size

84KB
MD5

0a650256854cb7e676f31cd360282818
SHA1

043d3b218fdde9d906c4aefcfe5c9b61a6ebfa48
SHA256

4cb24dc46f2d856f2050a3f97bad6bed82263ea9237e82cf7d5e6504ac201994
SHA512

24b02375f9d680bd0ff153c796bdc3d687ff338916a0a5a483f3c71a9c9b902c7ce9fadefbd82d57ff50de3b4d698cfa8b05374f4c6b31dc67597e24b338d4d3
SSDEEP

1536:3LpiswN7vaV8uGxFcb6GlTTGtFCivRRR6IWhrB/cPJEnWwpOSwjm:74sc7HuUKb6YG7TRRR6T/cC6SP

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
820	AcroRd32.exe
820	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
820	AcroRd32.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
820	AcroRd32.exe
820	AcroRd32.exe
820	AcroRd32.exe
820	AcroRd32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 820 wrote to memory of 4232	820	AcroRd32.exe	96
PID 820 wrote to memory of 4232	820	AcroRd32.exe	96
PID 820 wrote to memory of 4232	820	AcroRd32.exe	96
PID 820 wrote to memory of 4504	820	AcroRd32.exe	97
PID 820 wrote to memory of 4504	820	AcroRd32.exe	97
PID 820 wrote to memory of 4504	820	AcroRd32.exe	97
PID 820 wrote to memory of 1260	820	AcroRd32.exe	98
PID 820 wrote to memory of 1260	820	AcroRd32.exe	98
PID 820 wrote to memory of 1260	820	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\0a650256854cb7e676f31cd360282818.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:820
- 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:4232
- 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:4504
- 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:1260

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