800c8653b022aca7c6cfff77f4e7223c704462c17df52e8eab44d0b150ae8316

Analysis

max time kernel
204s
max time network
222s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
29/12/2023, 19:14

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General

Target

01669a93758d7cd4b2a254dbbff0b98e.pdf
Size

95KB
MD5

01669a93758d7cd4b2a254dbbff0b98e
SHA1

9691eb7ca897046df06190d55bcd2a428bc32de7
SHA256

800c8653b022aca7c6cfff77f4e7223c704462c17df52e8eab44d0b150ae8316
SHA512

700f4ecbb36cfba5b4d7ae255db02f686a8efb43780580cf1d8e6e57681d037fc6382be7d11596dc44e885a189ae537a77d99329581a11763d3b05a08c364afc
SSDEEP

1536:XwQesX0pP7OVvOSsvURzgym3e0GShdbWvwRDwWlxFvEk/D5zWaXHhl48W8pO+gWP:QskN7OVmpp3VJ3q4RD9xpV/1bXHhl43O

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-1-5-21-635608581-3370340891-292606865-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1960	AcroRd32.exe
1960	AcroRd32.exe
1960	AcroRd32.exe
1960	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1960	AcroRd32.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1960	AcroRd32.exe
1960	AcroRd32.exe
1960	AcroRd32.exe
1960	AcroRd32.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1960 wrote to memory of 1168	1960	AcroRd32.exe	94
PID 1960 wrote to memory of 1168	1960	AcroRd32.exe	94
PID 1960 wrote to memory of 1168	1960	AcroRd32.exe	94
PID 1960 wrote to memory of 3492	1960	AcroRd32.exe	98
PID 1960 wrote to memory of 3492	1960	AcroRd32.exe	98
PID 1960 wrote to memory of 3492	1960	AcroRd32.exe	98
PID 1960 wrote to memory of 4836	1960	AcroRd32.exe	100
PID 1960 wrote to memory of 4836	1960	AcroRd32.exe	100
PID 1960 wrote to memory of 4836	1960	AcroRd32.exe	100
PID 1960 wrote to memory of 4908	1960	AcroRd32.exe	102
PID 1960 wrote to memory of 4908	1960	AcroRd32.exe	102
PID 1960 wrote to memory of 4908	1960	AcroRd32.exe	102
PID 1960 wrote to memory of 3752	1960	AcroRd32.exe	105
PID 1960 wrote to memory of 3752	1960	AcroRd32.exe	105
PID 1960 wrote to memory of 3752	1960	AcroRd32.exe	105

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\01669a93758d7cd4b2a254dbbff0b98e.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:1960
- 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:1168
- 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:3492
- 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:4836
- 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:4908
- 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:3752

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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