7d4e1a84a5866128ea174cdfd1f25399418e4df357c3a2fb583045a55e207aa6

General

Target

157ce4de4cf1b864f9090f6cb8ba8c79.pdf
Size

88KB
MD5

157ce4de4cf1b864f9090f6cb8ba8c79
SHA1

6bebc8e12efe4efa91cd050a7a3523241674d6b9
SHA256

7d4e1a84a5866128ea174cdfd1f25399418e4df357c3a2fb583045a55e207aa6
SHA512

4e84051fe3250dd7afc2ebca734944b3882ed145418e11240bb9dc8b247c2b1c145a343e3ca393272a9f49b61d5b8480a1d0a70d69c54cfee552900f54645f1e
SSDEEP

1536:9n5oiqlaO7hKPkkvtmBaoFBQzg0KGSJxzZbTtYjxnAWCpOViMTZHLj4Ww3XZXH58:/o6OFKPFvt1oFBQP7SJxzZbTSxRViOL/

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 26 IoCs

pid	Process
2164	AcroRd32.exe
2164	AcroRd32.exe
2164	AcroRd32.exe
2164	AcroRd32.exe
2164	AcroRd32.exe
2164	AcroRd32.exe
2164	AcroRd32.exe
2164	AcroRd32.exe
2164	AcroRd32.exe
2164	AcroRd32.exe
2164	AcroRd32.exe
2164	AcroRd32.exe
2164	AcroRd32.exe
2164	AcroRd32.exe
2164	AcroRd32.exe
2164	AcroRd32.exe
2164	AcroRd32.exe
2164	AcroRd32.exe
2164	AcroRd32.exe
2164	AcroRd32.exe
2164	AcroRd32.exe
2164	AcroRd32.exe
2164	AcroRd32.exe
2164	AcroRd32.exe
2164	AcroRd32.exe
2164	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2164	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2164	AcroRd32.exe
2164	AcroRd32.exe
2164	AcroRd32.exe
2164	AcroRd32.exe
2164	AcroRd32.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2164 wrote to memory of 3128	2164	AcroRd32.exe	103
PID 2164 wrote to memory of 3128	2164	AcroRd32.exe	103
PID 2164 wrote to memory of 3128	2164	AcroRd32.exe	103
PID 2164 wrote to memory of 2912	2164	AcroRd32.exe	104
PID 2164 wrote to memory of 2912	2164	AcroRd32.exe	104
PID 2164 wrote to memory of 2912	2164	AcroRd32.exe	104
PID 2164 wrote to memory of 3356	2164	AcroRd32.exe	105
PID 2164 wrote to memory of 3356	2164	AcroRd32.exe	105
PID 2164 wrote to memory of 3356	2164	AcroRd32.exe	105
PID 2164 wrote to memory of 448	2164	AcroRd32.exe	109
PID 2164 wrote to memory of 448	2164	AcroRd32.exe	109
PID 2164 wrote to memory of 448	2164	AcroRd32.exe	109
PID 2164 wrote to memory of 4672	2164	AcroRd32.exe	110
PID 2164 wrote to memory of 4672	2164	AcroRd32.exe	110
PID 2164 wrote to memory of 4672	2164	AcroRd32.exe	110
PID 2164 wrote to memory of 3340	2164	AcroRd32.exe	113
PID 2164 wrote to memory of 3340	2164	AcroRd32.exe	113
PID 2164 wrote to memory of 3340	2164	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\157ce4de4cf1b864f9090f6cb8ba8c79.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:2164
- 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:3128
- 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:2912
- 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:3356
- 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:448
- 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:4672
- 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:3340

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
64KB

MD5
acea131cacac81d9ea6ca7a5d0c57b41

SHA1
4c3da59c5db9227cdafb74538c0155f903feec13

SHA256
62bb09db6269a1552d009cfe0ec330fc8baee04d725396eea8a3a2b29bb52d24

SHA512
05e8e8b0742ab3507b9b7df81c68ad552b48bd6f62dc76a57544b4e26c48f52586e90e32b66eeaf07d0e83e905b1ab3b12bff02281b052ac91f9b403f8154735

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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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Analysis

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