32da269a43655979ed75d9d8c549e3f166c1f116f5b85a877622eefe95325e35

Analysis

max time kernel
163s
max time network
165s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
23/10/2023, 19:47

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General

Target

NEAS.34816c95e14cc3dea73cfd48916e52a0_JC.pdf
Size

54KB
MD5

34816c95e14cc3dea73cfd48916e52a0
SHA1

8e56a23e6793399dbcf5199e40854c25f5056c02
SHA256

32da269a43655979ed75d9d8c549e3f166c1f116f5b85a877622eefe95325e35
SHA512

6964fa84a7da398cda08991e71e593ffeffbdcaa413ab30582d83849e05ff4973de7acef9058ae2759891ebcb6cef5098b4e4b28e032a81e1f6987445e5313c7
SSDEEP

768:luzdNIggou41dMV+foYlP13WBOSvCsPiulk1R0gcaFEgp8ZrK0:MzIW1dMV+foY5z4zPDlueg1FEgp840

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-1-5-21-3125601242-331447593-1512828465-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4036	AcroRd32.exe
4036	AcroRd32.exe
4036	AcroRd32.exe
4036	AcroRd32.exe
4036	AcroRd32.exe
4036	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4036	AcroRd32.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4036	AcroRd32.exe
4036	AcroRd32.exe
4036	AcroRd32.exe
4036	AcroRd32.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4036 wrote to memory of 5084	4036	AcroRd32.exe	84
PID 4036 wrote to memory of 5084	4036	AcroRd32.exe	84
PID 4036 wrote to memory of 5084	4036	AcroRd32.exe	84
PID 4036 wrote to memory of 4704	4036	AcroRd32.exe	85
PID 4036 wrote to memory of 4704	4036	AcroRd32.exe	85
PID 4036 wrote to memory of 4704	4036	AcroRd32.exe	85
PID 4036 wrote to memory of 2056	4036	AcroRd32.exe	86
PID 4036 wrote to memory of 2056	4036	AcroRd32.exe	86
PID 4036 wrote to memory of 2056	4036	AcroRd32.exe	86
PID 4036 wrote to memory of 1124	4036	AcroRd32.exe	87
PID 4036 wrote to memory of 1124	4036	AcroRd32.exe	87
PID 4036 wrote to memory of 1124	4036	AcroRd32.exe	87
PID 4036 wrote to memory of 776	4036	AcroRd32.exe	88
PID 4036 wrote to memory of 776	4036	AcroRd32.exe	88
PID 4036 wrote to memory of 776	4036	AcroRd32.exe	88
PID 4036 wrote to memory of 2292	4036	AcroRd32.exe	89
PID 4036 wrote to memory of 2292	4036	AcroRd32.exe	89
PID 4036 wrote to memory of 2292	4036	AcroRd32.exe	89

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\NEAS.34816c95e14cc3dea73cfd48916e52a0_JC.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:4036
- 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:5084
- 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:4704
- 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:2056
- 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:1124
- 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:776
- 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:2292

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