Malicious PDF — malware analysis report

Static analysis result for SHA-256 018c7a3e3f43a4d5…

MALICIOUS

PDF

45.4 KB Created: 2020-08-11 04:40:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b4c59dfd85e7cca04dbeac76762b4cee SHA-1: 70d5d8ab550fd39d29e9fe00174169b031b913c0 SHA-256: 018c7a3e3f43a4d56d12bef79dad98a12c4ca1cb632566637ce7f428fe1d0b6d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service identified as malicious. The document body, though heavily obfuscated, contains a URL that is also flagged as a malicious redirector. This suggests a phishing or scam attempt using a link farm to distribute malware or lead users to malicious content.

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://ttraff.ru/pify?keyword=bloom+s+digital+taxonomy+verbs+pdf In PDF document text
    • http://pewexe.earthtocolor.com/uploads/1/3/2/6/132680866/nosefebixewed_zavilam_rozikeri_liranexow.pdfIn PDF document text
    • http://files.becuriouscuisine.com/uploads/1/3/0/8/130873944/1411943.pdfIn PDF document text
    • http://files.tropical-valley-foods.com/uploads/1/3/1/4/131437736/c85dac510a80.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/1/0431/2471/9773/files/bag_making_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6193/6285/files/xuxapakobovomogekeripomo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8385/8080/files/33574981246.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8849/5270/files/wotegoli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/3182/5317/files/tafuzazuza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/76957488457.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3861/3399/files/achyut_godbole_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5799/5160/files/daily_hidden_object.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8651/0232/files/26250577834.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8969/0773/files/john_deere_d105_parts_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4217/7181/files/35768203171.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0726/2367/files/84664877774.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 7

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_off00007048.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7048 5780 bytes
SHA-256: 0f036b06baedfb3316448e27c80f49fee03c87650a8b59bb829e5cc39a39de1a
font_01_sfnt_off000083f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83F3 10716 bytes
SHA-256: 07774317c8b1a850184ad6d3108ec27b8c4fb37b53b71f77ae8b34f71839528b

Open this report in the interactive analyzer, or submit your own file for analysis.