Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d3c0b2079db5654…

MALICIOUS

PDF

18.0 KB Created: 2019-05-07 04:17:11 +01:00 Authoring application: mPDF 5.7
MD5: c6c649b0a62c0d6d65a7017483187a59 SHA-1: 57186eb64115ff2d9790c5dc074b3592dac316ef SHA-256: 6d3c0b2079db5654157a7c606f1ea2d90c03e6d005a0bc47b63fb975ef329883
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded links, identified as a link farm, which is a common technique for distributing malicious content. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, suggesting an attempt to redirect users to potentially harmful sites. While no scripts were extracted, the presence of numerous links and the ML classifier's high confidence score point towards a malicious intent to trick users into downloading further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9807

Heuristics 3

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://muicuiu.dumb1.com/9a03a01a00a06a03/Angelika-in-demonska-ena-II-Angelika-9-by-Anne-Golon.pdf
    • http://muicuiu.dumb1.com/8a07a09a07a01a05/Mensch-Pferd-Woran-krankt-die-Pferd-Mensch-Beziehung-by-Katina-Koch.pdf
    • http://muicuiu.dumb1.com/7a07a07a03a05a04/Murder-Mamas-by-Ashley-Antoinette.pdf
    • http://muicuiu.dumb1.com/7a05a05a02a05a09/Two-Hot-Mamas-Cajun-Delight-by-Trudy-Robicheaux.pdf
    • http://muicuiu.dumb1.com/9a08a09a05a02a02/Diamond-in-the-Ruff-Matchmaking-Mamas-13-by-Marie-Ferrarella.pdf
    • http://muicuiu.dumb1.com/1a00a03a09a01a00a02/The-Mamas-And-The-Papas-Reproduktion-Pop-amp-widerspenstige-Verh-ltnisse-by-Annika-Mecklenbrauck.pdf
    • http://muicuiu.dumb1.com/8a07a09a04a01a01/Pferd-in-Sicht-by-Christa-Sch-tt.pdf
    • http://muicuiu.dumb1.com/8a07a09a05a00a07/Quasars-Tagebuch-2-by-Quasar-Pferd.pdf
    • http://muicuiu.dumb1.com/8a08a04a01a00a07/Eltern-die-auf-Schaukeln-starren-Von-Bio-Mamas-iPhone-Papas-und-anderen-Spielplatz-Profis-by-Felix-Denk.pdf
    • http://muicuiu.dumb1.com/8a07a09a06a02a01/Das-Pferd-in-seiner-Welt-by-Daphne-Machin-Goodall.pdf
    • http://muicuiu.dumb1.com/8a07a09a04a01a02/Es-ist-so-einsam-im-Sattel-seit-das-Pferd-tot-ist-by-Selim-zdogan.pdf
    • http://muicuiu.dumb1.com/1a00a05a05a01a05a06/Der-kleine-K-nig-und-sein-Pferd-Grete-3-Bildergeschichten-by-Hedwig-Munck.pdf
    • http://muicuiu.dumb1.com/1a00a08a09a09a01a05/Der-Reiter-auf-dem-wei-en-Pferd-Entdeckungsreise-in-ein-neues-Bewusstsein-by-Andrea-Preu-.pdf
    • http://muicuiu.dumb1.com/1a00a02a01a09a00a05/Die-zauberhafte-Tierhandlung-Band-06-Lotte-und-das-verhexte-Pferd-by-Holly-Webb.pdf
    • http://muicuiu.dumb1.com/1a01a00a01a01a01a01/Die-perfekte-Ausr-stung-f-rs-Pferd---sicher-amp-g-nstig-by-Katja-Hinzberg.pdf
    • http://muicuiu.dumb1.com/9a09a04a08a00a08/Das-Madchen-by-Angelika-Klussendorf.pdf
    • http://muicuiu.dumb1.com/5a02a01a08a01a09/You-Are-Not-Like-Other-Mothers-by-Angelika-Schrobsdorff.pdf
    • http://muicuiu.dumb1.com/1a00a01a05a06a04a02/Wege-zur-Harmonie-mit-dem-Pferd-Sanfter-Umgang-gutes-Reiten-by-Daniela-Geiger.pdf
    • http://muicuiu.dumb1.com/9a01a09a02a00a02/Flie-endes-Land-by-Angelika-Overath.pdf
    • http://muicuiu.dumb1.com/4a01a03a04a09/Winter-Tales-by-Angelika-Meyer.pdf