Malicious PDF — malware analysis report

Static analysis result for SHA-256 503bdceae1400a57…

MALICIOUS

PDF

17.0 KB Created: 2019-05-02 17:45:09 +01:00 Authoring application: mPDF 5.7
MD5: 139db926234221522870bb68b6d47ef4 SHA-1: 753210cbefdc175625b20a691859d4b42d467398 SHA-256: 503bdceae1400a57d06d4fb1fd253be640f3abbc3f239c5ce80e0b1d748d64ed
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier as malicious and contains a large number of embedded external links. The primary heuristic indicates a 'PDF_SEO_LINK_FARM', suggesting the document's purpose is to host a mass of links, likely to manipulate search engine rankings or distribute further malicious content. While no scripts were extracted, the sheer volume of links and the ML classification strongly suggest malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

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/1096090099096093/Exposure-by-Elizabeth-Lister.pdf
    • http://loaminoo.linkpc.net/3095096095091092/Double-Exposure-by-Sam-Kadence.pdf
    • http://loaminoo.linkpc.net/2095098094097091/Double-Exposure-by-Charmaine-Ross.pdf
    • http://loaminoo.linkpc.net/4095099093090094/Double-Exposure-From-Every-Angle-1-by-Erin-McCarthy.pdf
    • http://loaminoo.linkpc.net/3097093090096096/A-Gift-of-Love-Just-Curious-Double-Exposure-Gabriel-s-Angel-Five-Golden-Rings-Yuletide-Treasure-by-Judith-McNaught.pdf
    • http://loaminoo.linkpc.net/1096094097095096/Double-Double-by-Michael-Jan-Friedman.pdf
    • http://loaminoo.linkpc.net/9098098098099/Blood-Sacrifice-John-Jordan-Mystery-5-by-Michael-Lister.pdf
    • http://loaminoo.linkpc.net/9097097097098/The-Secret-Diaries-of-Miss-Anne-Lister-by-Anne-Lister.pdf
    • http://loaminoo.linkpc.net/5092098096096091/Norman-Mailer-A-Double-Life-by-J-Michael-Lennon.pdf
    • http://loaminoo.linkpc.net/9093091094093097/The-First-Virtue-Star-Trek-Double-Helix-6-by-Michael-Jan-Friedman.pdf
    • http://loaminoo.linkpc.net/1091090090095093096/Double-Barreled-Devilry-Deckland-Cain-1-by-D-Michael-Bartsch.pdf
    • http://loaminoo.linkpc.net/2097099099092094/Double-Deal-The-Inside-Story-of-Murder-Unbridled-Corruption-and-the-Cop-Who-Was-a-Mobster-by-Michael-Corbitt.pdf
    • http://loaminoo.linkpc.net/3095099090097098/Deadly-Double-Florida-Mystery-Double-Feature-2-by-Diane-Capri.pdf
    • http://loaminoo.linkpc.net/9093091093098090/Double-or-Nothing-Star-Trek-Double-Helix-5-by-Peter-David.pdf
    • http://loaminoo.linkpc.net/1091095096092096096/The-New-English-Theatre-Vol-9-Amphitryon-Double-Dealer-Double-Gallant-Inconstant-Constant-Couple-by-Library-of-Congress.pdf
    • http://loaminoo.linkpc.net/2094091098098092/Double-Time-Double-Threat-3-by-Julie-Prestsater.pdf
    • http://loaminoo.linkpc.net/5097099096093097/Double-Her-Fantasy-Double-Seduction-1-by-Randi-Alexander.pdf
    • http://loaminoo.linkpc.net/2090095099097099/Take-What-You-Want-The-Rock-Gods-2-by-Ann-Lister.pdf
    • http://loaminoo.linkpc.net/3093099099098093/Take-What-You-Want-The-Rock-Gods-2-by-Ann-Lister.pdf
    • http://loaminoo.linkpc.net/4096099097092096/The-Crush-by-Elizabeth-Lister.pdf
    • http://loaminoo.linkpc.net/5092098096096091/Norman-Mailer-A-Doubl

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