Malicious PDF — malware analysis report

Static analysis result for SHA-256 31ff30f99a8f6230…

MALICIOUS

PDF

31.8 KB Created: 2020-03-18 22:27:24 +00:00 Authoring application: mPDF 5.7
MD5: bd3a4a028105fca57a1ebad7342abee6 SHA-1: 8314a4d111f348134d744ade59b30726e6a2cee7 SHA-256: 31ff30f99a8f6230feaea70c620c71131ed14b6d867296c3cf5afc89666268d4
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO spam or to distribute further malicious content. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted, and the document body was heavily obfuscated, preventing a deeper analysis of the immediate user-facing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9670

Heuristics 2

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://lwoscmobook.myhome.cx/252425246524252405249/Are-You-Ready-To-Take-Charge-Lose-Weight-Get-in-Shape-and-Change-Your-Life-Forever-by-Bob-Harper.pdf
    • http://lwoscmobook.myhome.cx/352475246524152405247/Lifestyle-Beats-Diet-Lose-Weight-For-Life-by-Change-In-Seconds.pdf
    • http://lwoscmobook.myhome.cx/1524152495247524052445244/The-Fat-Chance-Cookbook-More-Than-100-Recipes-Ready-in-Under-30-Minutes-to-Help-You-Lose-the-Sugar-and-the-Weight-by-Robert-H-Lustig.pdf
    • http://lwoscmobook.myhome.cx/652495244524052415245/Change-Your-Mind-Lose-Weight-by-Sandrine-Baptiste.pdf
    • http://lwoscmobook.myhome.cx/552495248524452445243/How-to-Lose-Weight-Little-Dirty-Secrets-to-Losing-Weight-and-Feeling-Sexy-and-Strong-Lose-the-Guts-Feel-Comfortable-in-Your-Skin-Join-the-Fatloss-Revolution-by-Jeff-Sandorf.pdf
    • http://lwoscmobook.myhome.cx/452495244524152415242/Weight-Loss-Motivation-10-Tips-That-Will-Help-You-Improve-Self-Esteem-Stop-Emotional-Eating-and-Lose-Weight-for-the-Rest-of-Your-Life-Weight-Loss-Motivation-Books-The-10-Steps-To-Success-Book-2-by-Shehan-Peiris.pdf
    • http://lwoscmobook.myhome.cx/652465249524552485242/The-Plan-Lose-Weight-Fast-and-Forever-by-Eating-the-Right-Foods-for-Your-Body-by-Lyn-Genet-Recitas.pdf
    • http://lwoscmobook.myhome.cx/852495240524452495245/Weight-Watching-Lifestyle-with-Program-31-Lose-Weight-Rapidly-While-Enjoy-Delicious-Weight-Watchers-Freestyle-Recipes-by-Natalie-Kordon.pdf
    • http://lwoscmobook.myhome.cx/752445242524852465242/The-Biggest-Loser-30-Day-Jump-Start-Lose-Weight-Get-in-Shape-and-Start-Living-the-Biggest-Loser-Lifestyle-Today-by-Cheryl-Forberg.pdf
    • http://lwoscmobook.myhome.cx/1524152425247524552415249/Lose-Weight-With-Ease-How-To-Lose-Over-5-Pounds-In-A-Week-With-Intermittent-Fasting-by-Katie-Ingram.pdf
    • http://lwoscmobook.myhome.cx/552475247524352485249/The-Mayo-Clinic-Diet-Eat-well-Enjoy-life-Lose-weight-by-Merle-Good.pdf
    • http://lwoscmobook.myhome.cx/952445243524052445247/Don-t-Lose-Your-Mind-Lose-Your-Weight-by-Rujuta-Diwekar.pdf
    • http://lwoscmobook.myhome.cx/152445240524552425245/Cells-to-Civilizations-The-Principles-of-Change-That-Shape-Life-by-Enrico-Coen.pdf
    • http://lwoscmobook.myhome.cx/252465247524552495248/The-8-Week-Blood-Sugar-Diet-Lose-Weight-Fast-and-Reprogramme-Your-Body-for-Life-by-Michael-Mosley.pdf
    • http://lwoscmobook.myhome.cx/652435243524252435243/The-New-Lean-for-Life-Outsmart-Your-Body-to-Shrink-Fat-Cells-and-Lose-Weight-for-Good-by-Cynthia-Stamper-Graff.pdf
    • http://lwoscmobook.myhome.cx/1524152485248524852425243/Weight-Loss-Recipes-20-Fit-amp-Slim-Low-Fat-Dinner-Recipes---Lose-Weight-and-Look-Great-by-Cory-Rocko.pdf
    • http://lwoscmobook.myhome.cx/252415245524152445247/Rich-Woman-A-Book-on-Investing-for-Women-Take-Charge-Of-Your-Money-Take-Charge-Of-Your-Life-by-Kim-Kiyosaki.pdf
    • http://lwoscmobook.myhome.cx/252465245524952405248/ESSENTIAL-OILS-FOR-WEIGHT-LOSS-The-Ultimate-Beginners-Guide-To-Lose-Weight-amp-Feel-Great-With-Essential-Oils-by-Scott-Jenkins.pdf
    • http://lwoscmobook.myhome.cx/55244524152445244/100-Ways-to-Motivate-Yourself-Change-Your-Life-Forever-by-Steve-Chandler.pdf
    • http://lwoscmobook.myhome.cx/352475246524152405245/Begin-with-Yes-A-Short-Conversation-That-Will-Change-Your-Life-Forever-by-Paul-S-Boynton.pdf
    • http://lwoscmobook.myhome.cx/552495248524452445243/How-to-Lose-Weight-Little-Dirty-Secrets-to-Losing-Weight-an

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