Malicious PDF — malware analysis report

Static analysis result for SHA-256 19a03a3edfeb9eb3…

MALICIOUS

PDF

51.0 KB Created: 2020-08-12 23:20:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 86c8579c0420d3dd87437ac0958e0c50 SHA-1: c3acdfe0647da269065789589791245903804f32 SHA-256: 19a03a3edfeb9eb375cb6c470ab4be932b575ff18cd093f7fe3e7a8f62d81323
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous links, many pointing to Shopify domains hosting PDF files, suggesting an attempt to create a link farm for SEO manipulation. The primary link, however, directs to a known malicious redirector infrastructure. This indicates a likely phishing or scam attempt, using the guise of providing a document to lure users to a malicious site.

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.com/pify?keyword=autoclaved+aerated+concrete+block+pdf In PDF document text
    • http://files.sportpic.co.il/uploads/1/3/1/4/131453649/9346619.pdfIn PDF document text
    • http://kemax.allthingsclown.com/uploads/1/3/1/6/131636664/247465f6.pdfIn PDF document text
    • http://files.lillinghallhanoverians.co.uk/uploads/1/3/1/4/131412603/bokunuzosopakepeb.pdfIn PDF document text
    • http://files.deborahsvoice.net/uploads/1/3/0/7/130740141/pofakexolariwexi.pdfIn PDF document text
    • http://vejel.elslandscapeinc.com/uploads/1/3/1/6/131637136/godefajovisijanolix.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/1/0431/5529/2317/files/aggie_war_hymn_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6610/5759/files/tunoxuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8531/4715/files/enter_sandman_bass_tab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8940/2779/files/19887018466.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7366/6213/files/44013068984.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0649/2823/files/how_to_crack_wd_my_passport_password.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4545/3985/files/dewiruxadifodikamuso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9702/2879/files/82558998055.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/6248/0296/files/southwest_confirmation_number.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4388/9057/files/mibajerabovoram.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4586/1014/files/26678787098.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 3

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_off00007e71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E71 5224 bytes
SHA-256: 167674b2d5582d5000314d3dee9a46eed159de0081af58e1508ef766fb6ec24e
font_01_sfnt_off00009048.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9048 15140 bytes
SHA-256: bcb987b3adfbdbac436f46191eca01c87cc5c76571c0f953d8d783fa904687ac

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