Malicious PDF — malware analysis report

Static analysis result for SHA-256 3141d45bf7b6a8ec…

MALICIOUS

PDF

46.2 KB Created: 2020-08-06 13:56:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 83474dc9ce82f066a3e4caa680fdfc3b SHA-1: 0d9768f4abce3618acc4b49c91ed7a5561655666 SHA-256: 3141d45bf7b6a8ec39b39d948bf5ea74a115c183fae4bfbaf5ec47771228b552
194 Risk Score

Malware Insights

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

The PDF file contains a high number of embedded links, many of which point to a redirector service (ttraff.cc) that is flagged as malicious. The document body, though heavily obfuscated, contains the URL that is also present in the heuristics, suggesting a lure to download further content or redirect to a malicious site. The presence of numerous links, including those hosted on Shopify, indicates an attempt to create a link farm for SEO poisoning or to disguise malicious links among benign ones.

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=ankle+sprain+home+exercise+program+pdf In PDF document text
    • http://files.markvillemassage.com/uploads/1/3/1/4/131437139/zafotozez.pdfIn PDF document text
    • http://files.growwithmehomechildcare.com/uploads/1/3/1/4/131406744/finigan_xaputovatixabi_fiwexo.pdfIn PDF document text
    • http://files.ontherun.us/uploads/1/3/1/6/131606109/b5296ce51c34d54.pdfIn PDF document text
    • http://files.profe-h.com/uploads/1/3/1/8/131857758/nasitonunif.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/1/0428/0057/8723/files/chronicle_of_a_death_foretold_full_text.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5511/8501/files/54116645213.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2052/5476/files/zafovefuvib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0185/5646/files/91228228587.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2208/2460/files/123156922.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/4018217028.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2704/6298/files/82243304018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9833/3599/files/bissell_proheat_2x_pet_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7460/0598/files/33997886950.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8603/5621/files/shakespearean_sonnets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3550/8387/files/dupabebakudaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1218/4474/files/87202924055.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5543/0302/files/16511156354.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_off000074cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74CB 5688 bytes
SHA-256: d212c44ad049106ea12877ce4fe6f45169053195af521c2064ce51e78edfb048
font_01_sfnt_off0000880a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x880A 10484 bytes
SHA-256: 6d41e9f9ac41d44f29074af9aea8e8a6ef5768da91dc3f257662f07b30df6b63

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