feb23a5b52ade4c0bfc61588a2088755648908f5e1ebe65c19eadba4525a4dcd

Analysis

max time kernel
175s
max time network
191s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
16/10/2023, 16:32

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General

Target

NEAS.1ef9eef6653495c03f6729669d787100_JC.pdf
Size

325KB
MD5

1ef9eef6653495c03f6729669d787100
SHA1

d774d76129bc0b23265dd4de52d339a546fd807c
SHA256

feb23a5b52ade4c0bfc61588a2088755648908f5e1ebe65c19eadba4525a4dcd
SHA512

06474e26373d2f045ecf6b771f2535f6023cc7660352804dc42b6632820cf9369d5cd8d0cc88a19be7c22e4f426dadb4de7f25aefe48d1432f8a14eda9f96b02
SSDEEP

6144:F62h2/7YPIYbYa7FDUxT4aUzt/+/xk3s8KsIDMkze3EcywMDdDntxkj:F62hkYJbYKFDUxTSN+ZTWgMQe3XNMJTq

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-1-5-21-1574508946-349927670-1185736483-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3136	AcroRd32.exe
3136	AcroRd32.exe
3136	AcroRd32.exe
3136	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3136	AcroRd32.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3136	AcroRd32.exe
3136	AcroRd32.exe
3136	AcroRd32.exe
3136	AcroRd32.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3136 wrote to memory of 2948	3136	AcroRd32.exe	92
PID 3136 wrote to memory of 2948	3136	AcroRd32.exe	92
PID 3136 wrote to memory of 2948	3136	AcroRd32.exe	92
PID 3136 wrote to memory of 640	3136	AcroRd32.exe	93
PID 3136 wrote to memory of 640	3136	AcroRd32.exe	93
PID 3136 wrote to memory of 640	3136	AcroRd32.exe	93
PID 3136 wrote to memory of 4064	3136	AcroRd32.exe	94
PID 3136 wrote to memory of 4064	3136	AcroRd32.exe	94
PID 3136 wrote to memory of 4064	3136	AcroRd32.exe	94
PID 3136 wrote to memory of 2348	3136	AcroRd32.exe	95
PID 3136 wrote to memory of 2348	3136	AcroRd32.exe	95
PID 3136 wrote to memory of 2348	3136	AcroRd32.exe	95
PID 3136 wrote to memory of 2076	3136	AcroRd32.exe	96
PID 3136 wrote to memory of 2076	3136	AcroRd32.exe	96
PID 3136 wrote to memory of 2076	3136	AcroRd32.exe	96
PID 3136 wrote to memory of 4444	3136	AcroRd32.exe	97
PID 3136 wrote to memory of 4444	3136	AcroRd32.exe	97
PID 3136 wrote to memory of 4444	3136	AcroRd32.exe	97

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.1ef9eef6653495c03f6729669d787100_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:3136
- 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:2948
- 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:640
- 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:4064
- 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:2348
- 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:2076
- 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:4444

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

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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