c7ca104f950160226dc9a577b46e72312af8f2370dceb1af9d29bc63defba1e9

Analysis

max time kernel
179s
max time network
197s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
31-12-2023 06:08

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General

Target

2b393997f832a0bfa9b246d210c5c0e3.pdf
Size

88KB
MD5

2b393997f832a0bfa9b246d210c5c0e3
SHA1

65330f0a3aa090665c0692cd284bf7a1539ff481
SHA256

c7ca104f950160226dc9a577b46e72312af8f2370dceb1af9d29bc63defba1e9
SHA512

5e0997be22f7c8d8d41cc712a94db2e6c187152b82e54c0d177c04b4a2f5a50d51e9b944008496f2b6a1366c7906e9eb9594de7bb0855f6ecaebdfdfd28ff47e
SSDEEP

1536:Er1uPrVvGBl0CpQoQM2L0QqNuwTma6ZhmX11WCmFsclkhQWYkMWCpOVihqLDl:Q10rVYXpQD0RNDaaehmX1ZIsclkh5VVR

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
3676	AcroRd32.exe
3676	AcroRd32.exe
3676	AcroRd32.exe
3676	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3676	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3676	AcroRd32.exe
3676	AcroRd32.exe
3676	AcroRd32.exe
3676	AcroRd32.exe
3676	AcroRd32.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3676 wrote to memory of 3828	3676	AcroRd32.exe	97
PID 3676 wrote to memory of 3828	3676	AcroRd32.exe	97
PID 3676 wrote to memory of 3828	3676	AcroRd32.exe	97
PID 3676 wrote to memory of 4580	3676	AcroRd32.exe	98
PID 3676 wrote to memory of 4580	3676	AcroRd32.exe	98
PID 3676 wrote to memory of 4580	3676	AcroRd32.exe	98
PID 3676 wrote to memory of 396	3676	AcroRd32.exe	101
PID 3676 wrote to memory of 396	3676	AcroRd32.exe	101
PID 3676 wrote to memory of 396	3676	AcroRd32.exe	101
PID 3676 wrote to memory of 5068	3676	AcroRd32.exe	104
PID 3676 wrote to memory of 5068	3676	AcroRd32.exe	104
PID 3676 wrote to memory of 5068	3676	AcroRd32.exe	104
PID 3676 wrote to memory of 2652	3676	AcroRd32.exe	106
PID 3676 wrote to memory of 2652	3676	AcroRd32.exe	106
PID 3676 wrote to memory of 2652	3676	AcroRd32.exe	106

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\2b393997f832a0bfa9b246d210c5c0e3.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:3676
- 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:3828
- 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:4580
- 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:396
- 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:5068
- 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:2652

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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