Malicious PDF — malware analysis report

Static analysis result for SHA-256 77ae2d57af9398c0…

MALICIOUS

PDF

44.1 KB Created: 2020-07-29 13:17:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1496c1bf8b9580c53facd4e71c8b5a89 SHA-1: c4ce1450e17b2c7f6ac12564ee01795bbc8bdbe8 SHA-256: 77ae2d57af9398c0f6ba3485cce61bf71914f470d56dc80c12bc213c5e4e0119
194 Risk Score

Malware Insights

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

The PDF contains multiple links to a redirector URL, specifically 'https://ttraff.ru/pify?keyword=theological+dictionary+of+the+new+testament+pdf+free+download', which is flagged as malicious. This suggests an attempt to direct users to malicious content under the guise of a free download. The presence of numerous external PDF links, many pointing to Shopify domains, further indicates a link farm or SEO manipulation tactic to attract victims.

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=theological+dictionary+of+the+new+testament+pdf+free+download In PDF document text
    • http://files.danjapolitis.com/uploads/1/3/2/6/132681144/646556.pdfIn PDF document text
    • http://files.johnpconoverphotography.com/uploads/1/3/1/3/131378990/didujen.pdfIn PDF document text
    • http://files.albamccance.com/uploads/1/3/1/3/131380005/luduravugufekinurapi.pdfIn PDF document text
    • http://files.jamieashleydesigns.com/uploads/1/3/1/4/131407823/9428459.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/1/0434/6265/6165/files/zugovezodejobebis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9964/3286/files/88108979850.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8849/5270/files/73842980200.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/puneson.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7092/2655/files/79515504272.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7867/1779/files/99845341627.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9380/9557/files/79707886618.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bipifapokuwegi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2391/7478/files/kiwemenuvoroxaxulezefil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8838/0061/files/bisisu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9159/1317/files/8846691979.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6661/4175/files/wutabulasufakemezupu.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 8

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_off00006d34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D34 5500 bytes
SHA-256: 1d3cf1e87763b1e55b07ebcb5a7507bac589bc3cca7721cc98603b39cd074343
font_01_sfnt_off00007fd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FD2 10028 bytes
SHA-256: c4c39c83c179baa2404193fbb97c71db975c8614c4202c45a726a2d2aef4227b

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