2f7e280802f7925950ad6eb3c8ce3d992d79557fc062842081920bb98072eece

General

Target

481887ff70b4736360669af6cfeffcf3.pdf
Size

73KB
MD5

481887ff70b4736360669af6cfeffcf3
SHA1

aaf96ccf8b3467fb35497b41e6ac303e900c4d98
SHA256

2f7e280802f7925950ad6eb3c8ce3d992d79557fc062842081920bb98072eece
SHA512

c0b7c93313c3e3d13bc256b0c9e80efb6a8646fa3cd89e47cf4519d303a278a0a2232c29949ff308a80f0e43611c96b4a588699f70ed5c9ec650364a757a0def
SSDEEP

1536:3unZ3eR14ciqEQ8bUTyLAS9DnlLytou76xydm5DZ2U:+nER144EQJeASV9yKu7uSm5DD

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
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3188	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe
3188	AcroRd32.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3188 wrote to memory of 704	3188	AcroRd32.exe	99
PID 3188 wrote to memory of 704	3188	AcroRd32.exe	99
PID 3188 wrote to memory of 704	3188	AcroRd32.exe	99
PID 3188 wrote to memory of 3464	3188	AcroRd32.exe	102
PID 3188 wrote to memory of 3464	3188	AcroRd32.exe	102
PID 3188 wrote to memory of 3464	3188	AcroRd32.exe	102
PID 3188 wrote to memory of 2068	3188	AcroRd32.exe	104
PID 3188 wrote to memory of 2068	3188	AcroRd32.exe	104
PID 3188 wrote to memory of 2068	3188	AcroRd32.exe	104
PID 3188 wrote to memory of 1648	3188	AcroRd32.exe	105
PID 3188 wrote to memory of 1648	3188	AcroRd32.exe	105
PID 3188 wrote to memory of 1648	3188	AcroRd32.exe	105
PID 3188 wrote to memory of 3760	3188	AcroRd32.exe	106
PID 3188 wrote to memory of 3760	3188	AcroRd32.exe	106
PID 3188 wrote to memory of 3760	3188	AcroRd32.exe	106
PID 3188 wrote to memory of 1496	3188	AcroRd32.exe	107
PID 3188 wrote to memory of 1496	3188	AcroRd32.exe	107
PID 3188 wrote to memory of 1496	3188	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\481887ff70b4736360669af6cfeffcf3.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:3188
- 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:704
- 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:3464
- 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:2068
- 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:1648
- 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:3760
- 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:1496

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
0eb8af83f0b7712bbcafc255ece0537c

SHA1
b0bf102531e2987f86559bba79a7e866fd1812b5

SHA256
2a415e9e33b1e37225884fb861dc40a247314297ca0b2e6fcc6072b584c38a9f

SHA512
f661dbcda50acfda083e008f8a3f22c0d8e2d7e8eb547c5a0c1ca10b88e05b5b3c9775f67510be999bf346af3b82b0038d0d45b259051c0dd9eec64987680ea2

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Analysis

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