Malicious PDF — malware analysis report

Static analysis result for SHA-256 6dcdf9d042b0cfa6…

MALICIOUS

PDF

120.9 KB Created: 2020-08-05 05:21:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 44ba9e7c844085c07cefd2ed76d4b9ed SHA-1: e1142595a0815e39089b90df96bbe4d8a5afc413 SHA-256: 6dcdf9d042b0cfa69f3b3c54eab714bab0d141e77b69eda6f8b0cdcb96e1ca6d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple links, including one identified as a malicious redirector pointing to 'https://ttraff.com/pify?keyword=haccp+codex+alimentarius+standards+pdf'. This suggests a phishing or scam attempt, likely using the document as an attachment in a spearphishing campaign. The ML classifier also strongly indicated maliciousness.

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=haccp+codex+alimentarius+standards+pdf In PDF document text
    • http://files.purrkur.com/uploads/1/3/1/6/131607029/c157bbf2672c.pdfIn PDF document text
    • http://files.insitju.com/uploads/1/3/1/0/131069904/37120711f58.pdfIn PDF document text
    • http://wabejowi.addisonwilhite.com/uploads/1/3/1/4/131406893/mineri-xunaleroloboniw-mudigerajipulen-kamok.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/1/0433/6926/7354/files/35901650846.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7063/5678/files/islamic_articles_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5480/9756/files/10499001311.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/liwukepurenugiweda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2656/2722/files/netogoxus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4507/7660/files/rumisevexepas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0258/4480/files/2310578939.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0978/5512/files/xapajavakizo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1044/6744/files/carrion_crown_interactive_maps.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4042/3592/files/minecraft_powered_rail_spacing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9371/1261/files/libros_de_materialismo_historico.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 5

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_off00019fad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19FAD 5332 bytes
SHA-256: 00b558bf34075b6644337ede97646e6ca0166e63d1a5ab3c187e71c56c890d37
font_01_sfnt_off0001b1b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B1B9 10668 bytes
SHA-256: 3a684f25f82f1fb9158600b7d96c768033201bdf412300a343199a75b1cba55c

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