Malicious PDF — malware analysis report

Static analysis result for SHA-256 516f1514dc37f01f…

MALICIOUS

PDF

44.6 KB Created: 2020-08-04 01:01:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 681b8318380a9f7386accbcc206f463e SHA-1: ada3950ba39d492c30acfaed1d585aa5361198c1 SHA-256: 516f1514dc37f01f836556546d45a87e1e263faf97a7274b1180d9acedeb169f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous links, including one pointing to a known malicious redirector at 'https://ttraff.cc/pify?keyword=branches+of+philosophy+pdf+file'. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to redirect the user to malicious infrastructure. The presence of a large number of external PDF links, many hosted on cdn.shopify.com, indicates a link farm or SEO poisoning tactic to distribute the malicious 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.cc/pify?keyword=branches+of+philosophy+pdf+file In PDF document text
    • http://files.mangareader.com/uploads/1/3/1/4/131406947/sipetitabesonetu.pdfIn PDF document text
    • http://files.mikewilderpottery.com/uploads/1/3/0/8/130814234/wirafofesoges.pdfIn PDF document text
    • http://files.westhighdrama.com/uploads/1/3/0/7/130776254/bisarijowunekanub.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/1/0428/9835/8432/files/xidab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9477/8791/files/61282453026.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0319/0181/files/kalunid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6239/4008/files/konenunediw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2539/2035/files/89128008533.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3547/4590/files/32299835320.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6271/4773/files/feromuzidozo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9606/4671/files/rorewixanuluwowotesa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7646/0447/files/15939651016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2995/4721/files/75768711991.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 1

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_off00006fb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FB0 5396 bytes
SHA-256: a44984ebef000a0b7d58dc1d050a6d20ad66cce1c65a872cc306eb16d117838b
font_01_sfnt_off00008210.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8210 10592 bytes
SHA-256: 46c45047e6cfc21d3f7e4608d6e78efd3b085540d9e5cac82cd90c8abe6da97c

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