Malicious PDF — malware analysis report

Static analysis result for SHA-256 daa975b60ff30e71…

MALICIOUS

PDF

18.6 KB Created: 2019-04-30 04:09:54 +01:00 Authoring application: mPDF 5.7
MD5: 0bab240d39ba8a209b0442c44c30dabc SHA-1: a1ddf24471911e4e2571c8ad974432805ac370b1 SHA-256: daa975b60ff30e71b718a0ee74a219da8ae53208a8970dfeeb5f0f6dad8cbd7c
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier strongly indicated maliciousness. While the linked PDFs themselves were flagged as benign, the sheer volume and structure of the links suggest a malicious intent to redirect users or to use the PDF as a lure. No scripts were extracted, limiting the analysis of direct payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9912

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://loaminoo.linkpc.net/8098095091090090/Talk-Talk-A-Children-s-Book-Author-Speaks-to-Grown-Ups-by-E-L-Konigsburg.pdf
    • http://loaminoo.linkpc.net/2097090098094091/I-Am-Positive-31-Positive-Self-Talk-Declarations-to-Speak-Faith-Over-Your-Life-Negative-Self-Talk-Book-2-by-Lynn-R-Davis.pdf
    • http://loaminoo.linkpc.net/1090097095098091095/Buddhists-Talk-About-Jesus-Christians-Talk-About-the-Buddha-by-Terry-Muck.pdf
    • http://loaminoo.linkpc.net/2096099093095098/What-We-Talk-about-When-We-Talk-about-the-Tube-The-District-Line-by-John-Lanchester.pdf
    • http://loaminoo.linkpc.net/4091090097095098/What-We-Talk-About-When-We-Talk-About-Love-Stories-by-Raymond-Carver.pdf
    • http://loaminoo.linkpc.net/2093094093092/What-We-Talk-About-When-We-Talk-About-Anne-Frank-by-Nathan-Englander.pdf
    • http://loaminoo.linkpc.net/8097095093096097/Jesus-Freaks-DC-Talk-and-The-Voice-of-the-Martyrs---Berichte-von-Menschen-die-bereit-waren-f-r-ihren-Glauben-bis-zum-u-ersten-zu-gehen-by-D-C-Talk.pdf
    • http://loaminoo.linkpc.net/3092094092096096/What-I-Talk-about-When-I-Talk-about-Running-by-Haruki-Murakami.pdf
    • http://loaminoo.linkpc.net/3090099092092092/What-We-Talk-About-When-We-Talk-About-Love-by-Raymond-Carver.pdf
    • http://loaminoo.linkpc.net/7095094097091091/How-To-Talk-to-Children-About-Modern-Art-by-Fran-oise-Barbe-Gall.pdf
    • http://loaminoo.linkpc.net/1091094091095093090/What-ll-We-Talk-About-A-Vocabulary-and-Conversation-Book-by-Jeanne-Handschuh.pdf
    • http://loaminoo.linkpc.net/6091095093097093/Artist-to-Artist-23-Major-Illustrators-Talk-to-Children-about-Their-Art-by-Eric-Carle.pdf
    • http://loaminoo.linkpc.net/4095090097090/How-to-Talk-So-Kids-Will-Listen-amp-Listen-So-Kids-Will-Talk-by-Adele-Faber.pdf
    • http://loaminoo.linkpc.net/8094091097092/How-to-Talk-So-Your-Mate-Will-Listen-and-Listen-So-Your-Mate-Will-Talk-by-Nancy-L-Van-Pelt.pdf
    • http://loaminoo.linkpc.net/1090096096096099096/What-if-a-girls-high-school-student-did-not-make-an-Epub-talk-work-and-made-it-an-electronic-book-Moshi-Tora-SpinOff-by-KAGURAZAKA-RASEN.pdf
    • http://loaminoo.linkpc.net/3096096091098093/Talk-to-the-Tail-by-Tom-Cox.pdf
    • http://loaminoo.linkpc.net/1094092090098098/Night-Talk-A-Novel-by-Elizabeth-Cox.pdf
    • http://loaminoo.linkpc.net/6090099099093096/Sweet-Talk-by-S-L-Scott.pdf
    • http://loaminoo.linkpc.net/3095096095091095/Talk-by-Kathe-Koja.pdf
    • http://loaminoo.linkpc.net/9097093090091092/If-My-Bed-Could-Talk-by-Rayven-Skyy.pdf
    • http://loaminoo.linkpc.net/80970950930960