Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdb1c3dabe6a5956…

MALICIOUS

PDF

21.0 KB Created: 2019-05-04 14:29:08 +01:00 Authoring application: mPDF 5.7
MD5: d6dab5404e827718bd206f425c5e3a49 SHA-1: 0a97c0bb820e9b808314dbdbabfd469058498e80 SHA-256: fdb1c3dabe6a59569ab96f10f7ca6cab7987e4f3950a5dd9654ab9e860f874df
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic. While most individual URLs are marked as benign, the sheer volume and structure suggest a malicious intent, possibly for SEO manipulation or to distribute further malicious content. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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://xiixmcuin.linkpc.net/4207206200207201/Through-Struggle-the-Stars-Human-Reach-1-by-John-J-Lumpkin.pdf
    • http://xiixmcuin.linkpc.net/1200205203200203200/Living-with-the-Stars-How-the-Human-Body-is-Connected-to-the-Life-Cycles-of-the-Earth-the-Planets-and-the-Stars-by-Karel-Schrijver.pdf
    • http://xiixmcuin.linkpc.net/1200201201201203205/Just-Jesus-My-Struggle-to-Become-Human-by-Walter-Wink.pdf
    • http://xiixmcuin.linkpc.net/1200201208200202201/Wrestling-the-Light-Ache-and-Awe-in-the-Human-Divine-Struggle-by-Ted-Loder.pdf
    • http://xiixmcuin.linkpc.net/4209202204208203/The-15-Invaluable-Laws-of-Growth-Live-Them-and-Reach-Your-Potential-by-John-C-Maxwell.pdf
    • http://xiixmcuin.linkpc.net/2203208206207206/We-Reach-the-Moon-The-New-York-Times-Story-of-Man-s-Greatest-Adventure-by-John-Noble-Wilford.pdf
    • http://xiixmcuin.linkpc.net/2206200201207/Area-X-The-Southern-Reach-Trilogy-Southern-Reach-1-3-by-Jeff-VanderMeer.pdf
    • http://xiixmcuin.linkpc.net/1206208203200209/A-Persistent-Peace-One-Man-s-Struggle-for-a-Nonviolent-World-by-John-Dear.pdf
    • http://xiixmcuin.linkpc.net/2203206207209208/Signs-of-Struggle-Thomas-O-Shea-Mystery-1-by-John-Carenen.pdf
    • http://xiixmcuin.linkpc.net/9202203203204209/Aftermath-The-Struggle-Of-Cambodia-amp-Vietnam-NS-Report-5-by-John-Pilger.pdf
    • http://xiixmcuin.linkpc.net/6209200208206203/The-Human-Division-Extras-The-Human-Division-14-by-John-Scalzi.pdf
    • http://xiixmcuin.linkpc.net/4209200201209209/Here-I-Stand-My-Struggle-for-a-Christianity-of-Integrity-Love-and-Equality-by-John-Shelby-Spong.pdf
    • http://xiixmcuin.linkpc.net/3206206208205207/Oddly-Normal-One-Family-s-Struggle-to-Help-Their-Teenage-Son-Come-to-Terms-with-His-Sexuality-by-John-R-Schwartz.pdf
    • http://xiixmcuin.linkpc.net/1200206202200207205/Mein-Kampf---My-Struggle-Unabridged-edition-of-Hitlers-original-book---Four-and-a-Half-Years-of-Struggle-against-Lies-Stupidity-and-Cowardice-by-Adolf-Hitler.pdf
    • http://xiixmcuin.linkpc.net/3204201208204201/The-John-A-Livingston-Reader-The-Fallacy-of-Wildlife-Conservation-and-One-Cosmic-Instant-A-Natural-History-of-Human-Arrogance-by-John-A-Livingston.pdf
    • http://xiixmcuin.linkpc.net/6206201201201200/Stars-of-the-Stars-Stars-of-the-Stars-1-by-P-n-lope-Bagieu.pdf
    • http://xiixmcuin.linkpc.net/4209205201208203/At-the-Seven-Stars-by-John-L-Beatty.pdf
    • http://xiixmcuin.linkpc.net/4200201209204204/Agent-to-the-Stars-by-John-Scalzi.pdf
    • http://xiixmcuin.linkpc.net/9206201207/The-Fault-in-Our-Stars-by-John-Green.pdf
    • http://xiixmcuin.linkpc.net/7201205201204208/The-Fault-in-Our-Stars-by-John-Green.pdf
    • http://xiixmcuin.linkpc.net/2206200201207/

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