Malicious PDF — malware analysis report

Static analysis result for SHA-256 47273bbaae63631f…

MALICIOUS

PDF

19.4 KB Created: 2019-04-30 06:39:45 +01:00 Authoring application: mPDF 5.7
MD5: e926d4e4dd8ea3be51558cf19e31622e SHA-1: 48febe60b09af4318d87035d2f085fe06be9b51a SHA-256: 47273bbaae63631fb051f1ef43d629b91f53f8f39c5e5bdf5c0a467d1bd9f14f
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

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 no scripts were extracted, the PDF structure and the heuristic firings suggest a malicious intent to redirect users to a large collection of documents hosted on loaminoo.linkpc.net.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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/1099095098090098/Stuart-Little-at-the-Library-An-I-Can-Read-Picture-Book-by-Susan-Hill.pdf
    • http://loaminoo.linkpc.net/5097090098092098/The-Picture-of-Dorian-Gray-Read-Along-Bring-the-Classics-to-Life-Book-and-Audio-CD-Level-4-With-CD-by-Oscar-Wilde.pdf
    • http://loaminoo.linkpc.net/4094095090097092/The-Penguin-Book-Of-Modern-Women-s-Short-Stories-by-Susan-Hill.pdf
    • http://loaminoo.linkpc.net/6094096092099096/The-100-Greatest-Photographs-of-the-Paranormal-Taken-from-the-Fortean-Picture-Library-by-Janet-Bord.pdf
    • http://loaminoo.linkpc.net/1091097094092095096/Elephant-Trunk-Tusks-Ears-Kid-s-Facts-amp-Picture-Book-Kid-s-facts-and-picture-books-by-Stephanie-Zahl.pdf
    • http://loaminoo.linkpc.net/1090094091091099095/From-Picture-to-Picture-Book-by-Ali-Mitgutsch.pdf
    • http://loaminoo.linkpc.net/4097099092090097/No-One-Quite-Like-Me-Free-audio-book-included-Children-s-bedtime-rhyming-picture-story-book-Preschool-book-for-kids-ages-2-4-by-Christina-McDonald.pdf
    • http://loaminoo.linkpc.net/1098095091098096/Betsy-Bird-Learns-To-Fly-Free-audio-book-included-Children-s-bedtime-rhyming-picture-story-book-Preschool-book-for-kids-ages-2-4-by-Christina-McDonald.pdf
    • http://loaminoo.linkpc.net/2099097099091096/How-to-Teach-a-Slug-to-Read-by-Susan-Pearson.pdf
    • http://loaminoo.linkpc.net/8092098097094097/7-Keys-to-Comprehension-How-to-Help-Your-Kids-Read-It-and-Get-It-by-Susan-Zimmermann.pdf
    • http://loaminoo.linkpc.net/1099099098092090/You-Read-to-Me-I-ll-Read-to-You-Very-Short-Stories-to-Read-Together-by-Mary-Ann-Hoberman.pdf
    • http://loaminoo.linkpc.net/4091092099096094/The-Book-You-Shouldn-t-Have-Read-A-Motivational-Inspirational-Book-by-Pheng-Taing.pdf
    • http://loaminoo.linkpc.net/1090094091092096090/The-Busy-Book-A-Picture-Book-by-Ali-Mitgutsch.pdf
    • http://loaminoo.linkpc.net/2093098095096099/The-Travelling-Bag-by-Susan-Hill.pdf
    • http://loaminoo.linkpc.net/8095099096091098/Hunger-by-Susan-Hill.pdf
    • http://loaminoo.linkpc.net/1097095099093099/Dolly-by-Susan-Hill.pdf
    • http://loaminoo.linkpc.net/1097096093095097/The-Woman-In-Black-by-Susan-Hill.pdf
    • http://loaminoo.linkpc.net/1091096094095092095/Black-Sheep-by-Susan-Hill.pdf
    • http://loaminoo.linkpc.net/6099091093097099/Femeia-n-negru-by-Susan-Hill.pdf
    • http://loaminoo.linkpc.net/7093091099096/The-Small-Hand-by-Susan-Hill.pdf

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