7e533b4d1dbc721d47eeabb482c6b3ea13dda5c2185a35531f3855b74883aaac

General

Target

487964c7fc419bb627a0710abdbe7258.pdf
Size

135KB
MD5

487964c7fc419bb627a0710abdbe7258
SHA1

bc6498e18c6ce56c90e2d9cb47d9b0155f83d18b
SHA256

7e533b4d1dbc721d47eeabb482c6b3ea13dda5c2185a35531f3855b74883aaac
SHA512

b33bc2ba2f7137b9f7f0958c5f7f90fba9c75ef21d3610e99f1d6d7da8c31c0fb9e61a4cbe0ab1bcfb368f62b0d47c4e08fd86ea2a2c7de1c5c26bef69d9dff5
SSDEEP

3072:etfc9TIEyhLHxl0r+uvnAq2iQx6a3k8hZ6YWt0q:etkWEELc+VR6okj/

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	AcroRd32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	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 26 IoCs

pid	Process
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3576	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe
3576	AcroRd32.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3576 wrote to memory of 5088	3576	AcroRd32.exe	104
PID 3576 wrote to memory of 5088	3576	AcroRd32.exe	104
PID 3576 wrote to memory of 5088	3576	AcroRd32.exe	104
PID 3576 wrote to memory of 4940	3576	AcroRd32.exe	105
PID 3576 wrote to memory of 4940	3576	AcroRd32.exe	105
PID 3576 wrote to memory of 4940	3576	AcroRd32.exe	105
PID 3576 wrote to memory of 2356	3576	AcroRd32.exe	106
PID 3576 wrote to memory of 2356	3576	AcroRd32.exe	106
PID 3576 wrote to memory of 2356	3576	AcroRd32.exe	106
PID 3576 wrote to memory of 2328	3576	AcroRd32.exe	112
PID 3576 wrote to memory of 2328	3576	AcroRd32.exe	112
PID 3576 wrote to memory of 2328	3576	AcroRd32.exe	112
PID 3576 wrote to memory of 2956	3576	AcroRd32.exe	113
PID 3576 wrote to memory of 2956	3576	AcroRd32.exe	113
PID 3576 wrote to memory of 2956	3576	AcroRd32.exe	113
PID 3576 wrote to memory of 2500	3576	AcroRd32.exe	114
PID 3576 wrote to memory of 2500	3576	AcroRd32.exe	114
PID 3576 wrote to memory of 2500	3576	AcroRd32.exe	114

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\487964c7fc419bb627a0710abdbe7258.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:3576
- 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:5088
- 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:4940
- 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:2356
- 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:2328
- 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:2956
- 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:2500

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

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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C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
64KB

MD5
9df74e3b65e1c5a6d621fdb01fbd3167

SHA1
b1eba1e0438e36976ea63fff3bc974ee45bfdbaa

SHA256
fb5253381e14b9f50f3d71ffaf29e809ad3551778ed90bed443a1d50959febc1

SHA512
d62fd2d4833fdbe5361675086bfe874d02cfd31166253f8c132c8104d2133d782b06870b19ddb4a292d05e331576cf3230cfe0fa48734c7c428eabc8e68d5dff

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Analysis

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