Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e7c8fede2423b0c…

MALICIOUS

PDF

68.3 KB Created: 2020-08-07 06:48:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b925cd1887852ec97672c780f9217bb7 SHA-1: ed456678346165855e85af6db91a7ba9cd924df6 SHA-256: 6e7c8fede2423b0c1a4e23b74cfa327eb9b67c52cb459065181f1262cb2f8917
194 Risk Score

Malware Insights

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

This PDF document contains a link farm designed to redirect users to malicious infrastructure, specifically identified as a redirector at https://ttraff.ru/pify. The document's content and structure indicate a phishing or scam attempt, likely masquerading as a legitimate document to trick users into clicking the malicious link. The ML classifier strongly supports the malicious nature of this PDF.

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=tax+treaty+indonesia+belanda+pdf In PDF document text
    • http://files.threefeatherscreations.com/uploads/1/3/0/9/130970009/8130136.pdfIn PDF document text
    • http://files.mrsoneyscomputerlab.com/uploads/1/3/1/3/131398541/3232550.pdfIn PDF document text
    • http://files.garealpropertylaw.com/uploads/1/3/0/7/130740174/b7f475989e24ca.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/43692268827.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2571/8678/files/lenajelujowaviwowarifigiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6055/7984/files/resistance_band_workout_routine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3598/9915/files/zumumapawuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7767/1843/files/march_past_commands.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5430/1338/files/vicks_filter_free_cool_mist_humidifier_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/41448402009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7382/2102/files/97620861022.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4016/2467/files/temoxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8514/3969/files/gerutibuxebapozenutizaji.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: fourfilliesfarmok.com 4 samples

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_off0000ceb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEB3 5296 bytes
SHA-256: 4ab8b0ed101a6d958732942c42129d5b9770d50b5b96d4193c376bdb634735f7
font_01_sfnt_off0000e0cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0CC 10376 bytes
SHA-256: 52d562fccebabc7439c424dfdecd5550480a9a15d5f19f67828ede0b66d351f1

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