Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3d6ec721ac08096…

MALICIOUS

PDF

43.8 KB Created: 2020-08-07 00:57:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5ad47077595b766f3b95da65275fe3f9 SHA-1: 4efa0305155d15410c83e0620f5626a852cb585e SHA-256: d3d6ec721ac08096c41fdac39f777ec2f1029e2e04b1ef999d111453e811e807
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link farm designed to redirect users to malicious sites, specifically leveraging a "concept of vocational guidance pdf" lure. The primary malicious URL identified is https://ttraff.cc/pify?keyword=concept+of+vocational+guidance+pdf, which is part of a known redirector infrastructure. The document's structure and embedded links suggest a phishing or scam attempt to drive traffic to potentially harmful 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.cc/pify?keyword=concept+of+vocational+guidance+pdf In PDF document text
    • http://files.michellewiebe.com/uploads/1/3/0/7/130739951/2837212.pdfIn PDF document text
    • http://ragawij.circledfarmkennels.com/uploads/1/3/0/9/130969723/8811827.pdfIn PDF document text
    • http://files.cagleauction.net/uploads/1/3/0/8/130873932/jasewifuxeguxebewoge.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/1/0428/7240/6179/files/libumawezitudowilifawi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5588/3175/files/57166715304.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3739/3049/files/100950327.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1484/8671/files/how_many_countries_in_the_world_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7773/0464/files/niguzadibesuwifoni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9471/1203/files/types_of_aeroplanes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8693/7248/files/25530650654.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9490/7810/files/professional_baking_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3902/2485/files/59979083646.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0185/6679/files/vizibivepopenadogijim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1350/5185/files/88724797547.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 6

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_off00006f25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F25 5012 bytes
SHA-256: cbf91666acd94b092381d5db3f2dfa4d11e7968a3928bbab68dcb3406f7051df
font_01_sfnt_off00008052.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8052 9912 bytes
SHA-256: 6382bde82615af784c782422ba08e0e6198e8e299f4b0f1127191bd341bb66ea

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