Malicious PDF — malware analysis report

Static analysis result for SHA-256 19ebe5b630fc4fc1…

MALICIOUS

PDF

19.4 KB Created: 2019-06-04 10:14:07 +01:00 Authoring application: mPDF 5.7
MD5: 1483cab0a902c649200b357dcd7d20b7 SHA-1: 73d68bf6cb1da16ba8d2975e75f5e760e8e79ceb SHA-256: 19ebe5b630fc4fc16df761509081ff922ef8d5f4ac85114d7412f3f5e2265532
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 PDFs, a technique often used for SEO poisoning or to distribute malicious content. The ML classifier also flagged this PDF as malicious. While the specific intent is unclear due to the lack of executable scripts, the primary attack pattern involves directing users to a large collection of external resources hosted on a suspicious domain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9775

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://cefasfese.4pu.com/7734734739738730/7-Kilo-in-3-Tagen-ber-Weihnachten-nach-Hause-by-Christian-Pokerbeats-Huber.pdf
    • http://cefasfese.4pu.com/3736733737731733/Without-Buddha-I-Could-not-be-a-Christian-by-Paul-F-Knitter.pdf
    • http://cefasfese.4pu.com/7733735733736732/A-Christian-Rosenkreutz-Anthology-by-Paul-M-Allen.pdf
    • http://cefasfese.4pu.com/4732739733732735/Christian-Bride-Muslim-Mosque-by-Paul-Wiebe.pdf
    • http://cefasfese.4pu.com/1739731736730737/Paul-and-the-Faithfulness-of-God-Christian-Origins-and-the-Question-of-God-4-by-N-T-Wright.pdf
    • http://cefasfese.4pu.com/1730734735733738736/The-Home-of-the-Addressees-of-the-Heliand-by-Ernst-Christian-Paul-Metzenthin.pdf
    • http://cefasfese.4pu.com/4733735736735739/Christian-History-Made-Easy-by-Timothy-Paul-Jones.pdf
    • http://cefasfese.4pu.com/1731733734734732733/Goethe-And-The-Fourth-Virtue-by-E-E-Papst.pdf
    • http://cefasfese.4pu.com/1731733734733735731/Sendbrief-an-Papst-Leo-X-by-Martin-Luther.pdf
    • http://cefasfese.4pu.com/5734732731735733/Woman-and-the-Salvation-of-the-World-A-Christian-Anthropology-on-the-Charisms-of-Women-by-Paul-Evdokimov.pdf
    • http://cefasfese.4pu.com/1731733737737737731/Vom-Papst-und-seiner-Priesterschaft-by-Niklaus-Manuel.pdf
    • http://cefasfese.4pu.com/1731737734732733734/2000-Years-of-Amazing-Grace-The-Story-and-Meaning-of-the-Christian-Faith-by-Paul-F-M-Zahl.pdf
    • http://cefasfese.4pu.com/1731733734734738737/Als-Papst-lebt-man-gef-hrlich-by-Brigitte-Teufl-Heimhilcher.pdf
    • http://cefasfese.4pu.com/1731733734734730737/Gott-ist-barmherzig-Die-wichtigste-Botschaft-des-Heiligen-Vaters-by-Franziskus-Papst-.pdf
    • http://cefasfese.4pu.com/1731733734734731730/Capital-Murder-An-Investigative-Reporter-s-Hunt-for-Answers-in-a-Collapsing-City-by-Chris-Papst.pdf
    • http://cefasfese.4pu.com/1730737732735731732/Pressesprecher-Terry-Pratchett-Christian-Ude-Paul-Carell-Werner-Hegemann-Friedbert-Pfluger-Thomas-de-Maiziere-Andreas-Molau-by-Books-LLC.pdf
    • http://cefasfese.4pu.com/1731734737738730/Blind-Huber-by-Nick-Flynn.pdf
    • http://cefasfese.4pu.com/4732734733731730/The-Many-Lives-of-Nathan-James-by-H-C-Huber.pdf
    • http://cefasfese.4pu.com/9738730732739730/Entscheiden-ALS-Problemlosen-by-Oswald-Huber.pdf
    • http://cefasfese.4pu.com/9731735733739739/Baby-dear-by-Linda-Huber.pdf

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