125fe715d3d0d211ca709ad12e65b9cee768b7f7c66f083b435b257698188633

Analysis

max time kernel
184s
max time network
203s
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 03:59

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General

Target

273a5f2578886a6f9f0b72389fc24259.pdf
Size

34KB
MD5

273a5f2578886a6f9f0b72389fc24259
SHA1

792f93636424bc3430a757e35fec5e4e85e0501b
SHA256

125fe715d3d0d211ca709ad12e65b9cee768b7f7c66f083b435b257698188633
SHA512

70bc3299546e1aa39276aa23ac4235941d01305355bba7242f8ef879c305fd66d7461526186469dccf58a0d11f69a812754a17fabd857843f1fee222b777d45a
SSDEEP

768:2ORDS+2AUPtVQsLRZZXCO6BxygKNTS2qRBLGT17GJCyogl1z1SX5LSW5:2i++riVaUfTtFT1WJlN1SUW5

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 2 IoCs

pid	Process
3680	AcroRd32.exe
3680	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3680	AcroRd32.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3680	AcroRd32.exe
3680	AcroRd32.exe
3680	AcroRd32.exe
3680	AcroRd32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3680 wrote to memory of 4376	3680	AcroRd32.exe	106
PID 3680 wrote to memory of 4376	3680	AcroRd32.exe	106
PID 3680 wrote to memory of 4376	3680	AcroRd32.exe	106
PID 3680 wrote to memory of 4820	3680	AcroRd32.exe	112
PID 3680 wrote to memory of 4820	3680	AcroRd32.exe	112
PID 3680 wrote to memory of 4820	3680	AcroRd32.exe	112
PID 3680 wrote to memory of 2152	3680	AcroRd32.exe	113
PID 3680 wrote to memory of 2152	3680	AcroRd32.exe	113
PID 3680 wrote to memory of 2152	3680	AcroRd32.exe	113

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\273a5f2578886a6f9f0b72389fc24259.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:3680
- 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:4376
- 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:4820
- 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:2152

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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