Malicious PDF — malware analysis report

Static analysis result for SHA-256 7bf123892243950a…

MALICIOUS

PDF

36.7 KB Created: 2020-10-11 02:34:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: d5866f90857225611fb5a657ed5d9735 SHA-1: ffeee7c86cf77ec789190a5bdae9e74de99c89c0 SHA-256: 7bf123892243950acee9acb7240583e4dfbc6c30c7e2bb25f26abec434d8335f
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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 https://ggtraff.ru/pify?keyword=tactics+greg+koukl+pdf+download In PDF document text
    • http://files.fpcfranklinpa.org/uploads/1/3/0/7/130739621/0349d6042ce3fba.pdfIn PDF document text
    • http://xewexe.kstgroundskeeping.com/uploads/1/3/1/4/131453645/6859455.pdfIn PDF document text
    • http://fogedota.keepsantafetxbeautiful.org/uploads/1/3/1/8/131856970/xadasamedidaxefulike.pdfIn PDF document text
    • http://wuwir.resiliencestudiesconsortium.com/uploads/1/3/1/4/131437421/b3e6f0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0056/0805/files/japanese_house_slippers_leather.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/7114/3588/files/dibewuvetuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/5018/0001/files/33241355253.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e20ef4d7-2f17-4741-80b2-4524e2b3ca77/rakofulu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1df493e6-3c11-4384-95c9-7dd99b338642/dazezitoxeno.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/528c655a-5e8c-4e1c-bcf4-d16f0060f362/63076689922.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7848/3097/files/midnight_sister_souljah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2318/7614/files/mutants_genetic_gladiators_breeding_guide_with_pictures.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/8771/9317/files/within-subjects_design_repeated_measures.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/5040/9369/files/danza_de_dragones.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005071.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5071 5428 bytes
SHA-256: eb23a3378fa8a46f91b922c8e11a24f0886e85683fa225d7a70b97461b1ad9d8
font_01_sfnt_off0000630e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x630E 10268 bytes
SHA-256: fa1cc27918af782ed0246aed1f3a66c3f96b858c738b2085d6103e7794a9a97f

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