Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c6735e6d4e36ed8…

MALICIOUS

PDF

26.0 KB Created: 2020-03-18 16:43:07 +00:00 Authoring application: mPDF 5.7
MD5: e11f4f7fde16f8670ff8212eadab3452 SHA-1: b56dae0ea46e6687ac2e68adfcca8204747d8428 SHA-256: 9c6735e6d4e36ed81c86038d25cc88fb6212bfa6beeb527ff8d823eecd6aaeae
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF file contains a large number of embedded URLs pointing to a single domain, 'calistazz.myhome.cx', which is indicative of a link farm or a distribution point for malicious content. The ML classifier strongly flagged this PDF as malicious. The presence of numerous links suggests an attempt to distribute further malicious payloads or to engage in SEO-based phishing. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9695

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://calistazz.myhome.cx/4867868862860/Euclid-s-Window-The-Story-of-Geometry-from-Parallel-Lines-to-Hyperspace-by-Leonard-Mlodinow.pdf
    • http://calistazz.myhome.cx/3860864866864864/Subliminal-How-You-Unconscious-Mind-Rules-Your-Behaviour-Leonard-Mlodinow-by-Leonard-Mlodinow.pdf
    • http://calistazz.myhome.cx/2868865869866867/Jesus-and-Muhammad-Parallel-Tracks-Parallel-Lives-by-F-E-Peters.pdf
    • http://calistazz.myhome.cx/6861860869861868/The-Wonderful-Adventures-of-Nils---Bilingual-English-German-in-parallel-vertical-columns---Parallel-Text-by-Selma-Lagerl-f.pdf
    • http://calistazz.myhome.cx/6861860868865869/The-Snow-Queen-La-reine-des-neiges---Bilingual-English-French-in-parallel-vertical-columns---Parallel-Text-by-Hans-Christian-Andersen.pdf
    • http://calistazz.myhome.cx/1861862864868866869/Through-the-Window-Seventeen-Essays-and-a-Short-Story-by-Julian-Barnes.pdf
    • http://calistazz.myhome.cx/1868860866869869/Hyperspace-Choose-Your-Own-Adventure-21-by-Edward-Packard.pdf
    • http://calistazz.myhome.cx/1861862869864860863/Massacre-007-The-Story-Of-The-Korean-Air-Lines-Flight-007-by-Richard-Rohmer.pdf
    • http://calistazz.myhome.cx/2862863863867/Life-Lines-The-Lanier-Phillips-Story-by-Christine-Welldon.pdf
    • http://calistazz.myhome.cx/2863860863869869/Your-Story-The-Dresden-Files-Roleplaying-Game-1-by-Leonard-Balsera.pdf
    • http://calistazz.myhome.cx/3863864868865862/Die-For-Me-The-Terrifying-Story-of-Charles-Ng-Leonard-Lake-Torture-Murders-by-Don-Lasseter.pdf
    • http://calistazz.myhome.cx/2869866866863860/Bravo-Two-Zero---The-True-Story-Of-An-SAS-Patrol-Behind-Enemy-Lines-In-Iraq-by-Andy-McNab.pdf
    • http://calistazz.myhome.cx/4860863869866868/Bravo-Two-Zero-The-true-story-of-an-SAS-Patrol-behind-enemy-lines-in-Iraq-by-Andy-McNab.pdf
    • http://calistazz.myhome.cx/5862861862866864/These-Few-Lines-A-Convict-Story-The-Lost-Lives-of-Myra-amp-William-Sykes-by-Graham-Seal.pdf
    • http://calistazz.myhome.cx/2862866865860866/Mind-Lines-Lines-for-Changing-Minds-by-L-Michael-Hall.pdf
    • http://calistazz.myhome.cx/5860860861864862/The-Story-of-Stuff-The-Impact-of-Overconsumption-on-the-Planet-Our-Communities-and-Our-Health-And-How-We-Can-Make-It-Better-by-Annie-Leonard.pdf
    • http://calistazz.myhome.cx/1861860861865865860/Macmillan-s-Course-of-German-Compostion-First-Course-Parallel-German-English-Extracts-and-Parallel-English-German-Syntax-by-G-Eugene-Fasnacht.pdf
    • http://calistazz.myhome.cx/3866867866864861/In-the-Spirit-of-Crazy-Horse-The-Story-of-Leonard-Peltier-and-the-FBI-s-War-on-the-American-Indian-Movement-by-Peter-Matthiessen.pdf
    • http://calistazz.myhome.cx/5867863868869866/Euclid-Shudders-by-Mark-Tardi.pdf
    • http://calistazz.myhome.cx/1861869860866869867/Built-for-Pleasure-by-Thursday-Euclid.pdf
    • http://calistazz.myhome.cx/686186086886586