Malicious PDF — malware analysis report

Static analysis result for SHA-256 0bf97b3d8f6328dc…

MALICIOUS

PDF

17.2 KB Created: 2019-05-03 06:06:09 +01:00 Authoring application: mPDF 5.7
MD5: e1ac02c0e8a2d9f2362a4132933a7557 SHA-1: 4fdf3de64170be78303a371c6d96c292b75550aa SHA-256: 0bf97b3d8f6328dc33b6ea230860e3ccfd36bedea0f6d291e286af812ee3400c
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by a machine learning classifier as malicious and contains a large number of embedded external links, characteristic of a link farm or SEO spam. While the document body contains URLs, no scripts were extracted, and the primary malicious behavior appears to be the mass distribution of links. The presence of a 'download button' heuristic suggests a potential lure for users to click these links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9787

Heuristics 3

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://muicuiu.dumb1.com/2a01a01a05a02/Wanted-Wife-and-Mother-Sealed-with-a-Kiss-5-by-Barbara-McMahon.pdf
    • http://muicuiu.dumb1.com/2a00a09a02a09/The-Substitute-Wife-by-Barbara-McMahon.pdf
    • http://muicuiu.dumb1.com/2a01a07a01a09a07/SEALed-with-a-Kiss-SEALed-1-by-Mary-Margret-Daughtridge.pdf
    • http://muicuiu.dumb1.com/2a09a01a01a00a04/More-Than-a-Stranger-Sealed-With-a-Kiss-1-by-Erin-Knightley.pdf
    • http://muicuiu.dumb1.com/2a08a00a03a07a03/SEALed-with-a-Kiss-Boxset-by-Teresa-J-Reasor.pdf
    • http://muicuiu.dumb1.com/2a09a09a07a09a00/SEAL-of-Love-SEALed-with-a-Kiss-3-by-Aiden-Bates.pdf
    • http://muicuiu.dumb1.com/7a06a06a01a03a05/Sealed-with-a-Kiss-Revised-amp-Expanded-by-Lydia-Criss.pdf
    • http://muicuiu.dumb1.com/2a09a09a06a04a03/SEALing-His-Fate-SEALed-with-a-Kiss-1-by-Aiden-Bates.pdf
    • http://muicuiu.dumb1.com/2a09a01a03a08a01/A-Taste-for-Scandal-Sealed-With-a-Kiss-2-by-Erin-Knightley.pdf
    • http://muicuiu.dumb1.com/7a01a00a00a08/Sealed-with-a-Kiss-Diary-of-a-Crush-3-by-Sarra-Manning.pdf
    • http://muicuiu.dumb1.com/4a07a05a03a03a03/SEALed-with-a-Kiss-Harlequin-Blaze-589-by-Jill-Monroe.pdf
    • http://muicuiu.dumb1.com/8a02a09a09a00a08/Sealed-With-A-Kiss-The-Amazing-Days-of-Abby-Hayes-20-by-Anne-Mazer.pdf
    • http://muicuiu.dumb1.com/2a01a01a01a07/Shining-Through-by-Barbara-McMahon.pdf
    • http://muicuiu.dumb1.com/2a08a01a09a05a05/All-She-Ever-Wanted-by-Barbara-Freethy.pdf
    • http://muicuiu.dumb1.com/5a00a00a07a02a05/All-She-Ever-Wanted-by-Barbara-Freethy.pdf
    • http://muicuiu.dumb1.com/1a07a02a03a01a02/Mistress-Mother---Wife-by-Maggie-Cox.pdf
    • http://muicuiu.dumb1.com/5a00a08a07a03/Holly-s-Heart-Collection-1-Best-Friend-Worst-Enemy-Secret-Summer-Dreams-Sealed-with-a-Kiss-The-Trouble-with-Weddings-California-Crazy-Holly-s-Heart-1-5-by-Beverly-Lewis.pdf
    • http://muicuiu.dumb1.com/4a02a03a03a04a09/Creative-Counterpart-Becoming-the-Woman-Wife-and-Mother-You-ve-Longed-to-Be-by-Linda-Dillow.pdf
    • http://muicuiu.dumb1.com/7a01a08a02a04/Grendel-s-Mother-The-Saga-of-the-Wyrd-Wife-by-Susan-Signe-Morrison.pdf
    • http://muicuiu.dumb1.com/5a00a05a02a08a06/Humor-Me-I-m-Your-Mother-by-Barbara-Johnson.pdf

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