05874570f1a6efdaf2adb3cff761e2ec59f55d7c6bb55f64a93670fe0509a2b5

General

Target

2b15c04cedb5f2d5bcbc93c639093164.pdf
Size

89KB
MD5

2b15c04cedb5f2d5bcbc93c639093164
SHA1

c121d8aeee345f973c3c8e2a99b775fee74903bb
SHA256

05874570f1a6efdaf2adb3cff761e2ec59f55d7c6bb55f64a93670fe0509a2b5
SHA512

0ffdcf5430a62292ef9aafb33754a3fbb51cc2de0a514d52991b8ceee5492236e24371fb5e62d54f47e0b8e0f1d0e46039850afc5997c6e4365cbd5376c31558
SSDEEP

1536:W60GBQAksq1LnR4OZrQn+XGMMM+IlizO83RkSEPOBGUNTAO5aya+sWAr7o5jNWyU:jOALqpTZkns/MSizxRLjBlNECpL5jIzR

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-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 26 IoCs

pid	Process
3824	AcroRd32.exe
3824	AcroRd32.exe
3824	AcroRd32.exe
3824	AcroRd32.exe
3824	AcroRd32.exe
3824	AcroRd32.exe
3824	AcroRd32.exe
3824	AcroRd32.exe
3824	AcroRd32.exe
3824	AcroRd32.exe
3824	AcroRd32.exe
3824	AcroRd32.exe
3824	AcroRd32.exe
3824	AcroRd32.exe
3824	AcroRd32.exe
3824	AcroRd32.exe
3824	AcroRd32.exe
3824	AcroRd32.exe
3824	AcroRd32.exe
3824	AcroRd32.exe
3824	AcroRd32.exe
3824	AcroRd32.exe
3824	AcroRd32.exe
3824	AcroRd32.exe
3824	AcroRd32.exe
3824	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3824	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3824	AcroRd32.exe
3824	AcroRd32.exe
3824	AcroRd32.exe
3824	AcroRd32.exe
3824	AcroRd32.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3824 wrote to memory of 1716	3824	AcroRd32.exe	93
PID 3824 wrote to memory of 1716	3824	AcroRd32.exe	93
PID 3824 wrote to memory of 1716	3824	AcroRd32.exe	93
PID 3824 wrote to memory of 3296	3824	AcroRd32.exe	96
PID 3824 wrote to memory of 3296	3824	AcroRd32.exe	96
PID 3824 wrote to memory of 3296	3824	AcroRd32.exe	96
PID 3824 wrote to memory of 3208	3824	AcroRd32.exe	97
PID 3824 wrote to memory of 3208	3824	AcroRd32.exe	97
PID 3824 wrote to memory of 3208	3824	AcroRd32.exe	97
PID 3824 wrote to memory of 4812	3824	AcroRd32.exe	99
PID 3824 wrote to memory of 4812	3824	AcroRd32.exe	99
PID 3824 wrote to memory of 4812	3824	AcroRd32.exe	99
PID 3824 wrote to memory of 2944	3824	AcroRd32.exe	101
PID 3824 wrote to memory of 2944	3824	AcroRd32.exe	101
PID 3824 wrote to memory of 2944	3824	AcroRd32.exe	101
PID 3824 wrote to memory of 1020	3824	AcroRd32.exe	107
PID 3824 wrote to memory of 1020	3824	AcroRd32.exe	107
PID 3824 wrote to memory of 1020	3824	AcroRd32.exe	107

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\2b15c04cedb5f2d5bcbc93c639093164.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:3824
- 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:1716
- 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:3296
- 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:3208
- 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:4812
- 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:2944
- 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:1020

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
5a34322d6938972b2eeb0ac6b3d4eead

SHA1
3d24976419250bdb72337bea69928908d1e5d64a

SHA256
40d0fc7080c16c2a118db47e731ed267c22985fefd612dcb4322987368f04bfb

SHA512
430eb96e9882b22d9a621b6efcac1abefab4fb430930ec602858cc4bedd3c6190ff7c244e4c1c7b7c88f385d835467ef082a4cecf7b9d905d6edc81e83c4c800

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Analysis

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