Malicious PDF — malware analysis report

Static analysis result for SHA-256 797d5d6a0a0bde56…

MALICIOUS

PDF

41.8 KB Created: 2020-08-11 04:32:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9ae30bf4ac365a9d8f767b8c732fd49d SHA-1: 709182e1d932aaef7984afa8c8d020e954c00cc3 SHA-256: 797d5d6a0a0bde565dd29514275096392ae5cbb0ce9da648ea904ded5e3bc777
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.ru) disguised as a document about parent functions. This SEO link farm technique is often used to obscure malicious destinations and phish for credentials or distribute further malware. While no scripts were directly extracted, the PDF structure and embedded URLs strongly suggest a malicious intent to redirect users to 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.ru/pify?keyword=parent+functions+graphs+pdf In PDF document text
    • http://files.gianthuntersfishingholidays.com/uploads/1/3/0/9/130969573/kebavedefu.pdfIn PDF document text
    • http://files.marcodim.com/uploads/1/3/0/7/130740112/ffda9e686c23b.pdfIn PDF document text
    • http://files.deepriveras.com/uploads/1/3/1/0/131070351/3d73fd.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/1/0433/0687/7080/files/35031547028.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7678/0192/files/31485191005.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2230/2888/files/wekudemokuvibozonevefipol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2902/0317/files/88016325336.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8936/2082/files/1532532907.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8548/7516/files/vavinajonefuza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4226/5498/files/6th_grade_math_assessment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9971/6770/files/86682993001.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1647/6056/files/kipalebapoponuta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rexalomofovuwazeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2990/5058/files/33517818643.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6625/3724/files/96171570924.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2827/3569/files/3603202450.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
🗂 Part of campaign: deepriveras.com 3 samples

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_off00006616.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6616 5384 bytes
SHA-256: 921f5f6ea40eab04123987ccb59ddfe02378b0e387d990e2b7a7b4da38edaae3
font_01_sfnt_off0000785c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x785C 10052 bytes
SHA-256: ef10ab2a0134c9ebca11cc7e5717c8186d9c3a264b73a783494488e3d79ca99f

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