97423c3809dd2091e5b02aaee7a16676a5779ca70a31f0619deffd74a0ac67c6

General

Target

1e693a35821273e09812939a9425eaa2.pdf
Size

81KB
MD5

1e693a35821273e09812939a9425eaa2
SHA1

32e6ea283d65c1adcd05e7be8e1edf980ccdefe0
SHA256

97423c3809dd2091e5b02aaee7a16676a5779ca70a31f0619deffd74a0ac67c6
SHA512

f4f66347461c842e839a035545926452ac21970d37f4fd351ded94a9893b2329d314c70b1f3947c47798d60396eac936d9c3ddee3c5af147376cf6ab950d9834
SSDEEP

1536:lCPxAarliRJ+bHG+E/e5RT1ZDCBEnqDVBC1WHpOvTW7nvBxOr2GGTiZw6cLLz+Z:1OERkbNEGLxZDCcEYv0n5xONGTWw6YLI

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
1888	AcroRd32.exe
1888	AcroRd32.exe
1888	AcroRd32.exe
1888	AcroRd32.exe
1888	AcroRd32.exe
1888	AcroRd32.exe
1888	AcroRd32.exe
1888	AcroRd32.exe
1888	AcroRd32.exe
1888	AcroRd32.exe
1888	AcroRd32.exe
1888	AcroRd32.exe
1888	AcroRd32.exe
1888	AcroRd32.exe
1888	AcroRd32.exe
1888	AcroRd32.exe
1888	AcroRd32.exe
1888	AcroRd32.exe
1888	AcroRd32.exe
1888	AcroRd32.exe
1888	AcroRd32.exe
1888	AcroRd32.exe
1888	AcroRd32.exe
1888	AcroRd32.exe
1888	AcroRd32.exe
1888	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1888	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1888	AcroRd32.exe
1888	AcroRd32.exe
1888	AcroRd32.exe
1888	AcroRd32.exe
1888	AcroRd32.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1888 wrote to memory of 5064	1888	AcroRd32.exe	100
PID 1888 wrote to memory of 5064	1888	AcroRd32.exe	100
PID 1888 wrote to memory of 5064	1888	AcroRd32.exe	100
PID 1888 wrote to memory of 2296	1888	AcroRd32.exe	102
PID 1888 wrote to memory of 2296	1888	AcroRd32.exe	102
PID 1888 wrote to memory of 2296	1888	AcroRd32.exe	102
PID 1888 wrote to memory of 2100	1888	AcroRd32.exe	103
PID 1888 wrote to memory of 2100	1888	AcroRd32.exe	103
PID 1888 wrote to memory of 2100	1888	AcroRd32.exe	103
PID 1888 wrote to memory of 4476	1888	AcroRd32.exe	104
PID 1888 wrote to memory of 4476	1888	AcroRd32.exe	104
PID 1888 wrote to memory of 4476	1888	AcroRd32.exe	104
PID 1888 wrote to memory of 988	1888	AcroRd32.exe	105
PID 1888 wrote to memory of 988	1888	AcroRd32.exe	105
PID 1888 wrote to memory of 988	1888	AcroRd32.exe	105
PID 1888 wrote to memory of 3780	1888	AcroRd32.exe	109
PID 1888 wrote to memory of 3780	1888	AcroRd32.exe	109
PID 1888 wrote to memory of 3780	1888	AcroRd32.exe	109

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\1e693a35821273e09812939a9425eaa2.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:1888
- 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:5064
- 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:2296
- 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:2100
- 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:4476
- 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:988
- 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:3780

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
b92a8a91bb19c803f7da58df6c2f321e

SHA1
f7a7dd58b2f603e50038e601dbc94af57f0f8c38

SHA256
fae41a04c2d23e148918d9263689f34d30c779865dcbb0d4744472eabc5a7092

SHA512
2e6f79f69c058b4418aeaf8b413eecd7c9e1dfe613478d64751574b807f4732969c2b003db1621c6eb74340958bf6a6ab648b71f541b6e077957f72128285bcd

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Analysis

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