Malicious PDF — malware analysis report

Static analysis result for SHA-256 711a604e404a879d…

MALICIOUS

PDF

62.9 KB Created: 2020-08-08 12:18:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 055c24551ed1eca25d1099c0a358f156 SHA-1: 2c62ee2f41819a9297ec2c0f08b437516b307eab SHA-256: 711a604e404a879d0a34faf575d649a735c2ec9a8ef6ffc4fe28fe5d8dac30e9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many of which point to a redirector service known for malicious activity. The document body and heuristics indicate a lure for users to download a PDF, which likely leads to a phishing or malware distribution site. The primary malicious URL identified is ttraff.ru, which is flagged as a redirector.

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=les+articles+d%25C3%25A9finis+et+ind%25C3%25A9finis+partitifs+exercices+pdf In PDF document text
    • http://files.wcchakrahealing.com/uploads/1/3/1/3/131381374/8786177.pdfIn PDF document text
    • http://files.oaklandriversidegolfcourse.com/uploads/1/3/2/6/132680901/lonisejaviwaleloba.pdfIn PDF document text
    • http://files.lehibands.com/uploads/1/3/0/7/130776123/sawafoxeseva_benivenage_kimatipefug.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/1/0438/5452/8677/files/wavevifot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9161/6153/files/ripemusupox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9145/2313/files/jigef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8649/4361/files/9039409423.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1441/2694/files/94208781919.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0127/3750/files/lesoxumedage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8393/0527/files/kamias_jam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1280/8091/files/cablage_automate_programmable_industriel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2563/6248/files/23753158654.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1791/8870/files/puntos_craneometricos_unam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8438/9275/files/46982696863.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0142/9662/files/wiravikunufudusop.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a15b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA15B 2828 bytes
SHA-256: a17885b4fd577e0298a64705d5055d2ac7c2363fd7008e9cf236b3df412a17d8
font_01_sfnt_off0000ab55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB55 5300 bytes
SHA-256: ace2eab83a46395da8214c4a940325fcf2c38959a31d6de72b6e76272b1e70aa
font_02_sfnt_off0000bd2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD2F 15712 bytes
SHA-256: b718a843502e63e3acb71ec15a877f29b2dca45165c007125cff429d1b9af24c

Open this report in the interactive analyzer, or submit your own file for analysis.