Malicious PDF — malware analysis report

Static analysis result for SHA-256 d121ecb93041a4e5…

MALICIOUS

PDF

44.9 KB Created: 2020-08-04 21:06:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 489aa9e495408519d400159db27f7d43 SHA-1: ccd2a395a4b8102d31975dc9d7eca55fd69f5464 SHA-256: d121ecb93041a4e51f19f023d84140518672683063bdab4cea020505ec01331f
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.cc/pify?keyword=mtvss+access+consciousness+pdf'. The document body, though heavily obfuscated, also contains this URL, suggesting the document's primary purpose is to redirect the user to malicious content. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm or SEO poisoning tactic to increase visibility and potential clicks.

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=mtvss+access+consciousness+pdf In PDF document text
    • http://files.globaltesoltraining.org/uploads/1/3/0/7/130775968/5715d9839636.pdfIn PDF document text
    • http://files.paulsurreal.com/uploads/1/3/1/3/131383743/89b5a0a86d7486.pdfIn PDF document text
    • http://files.pulpshoppe.com/uploads/1/3/0/7/130776033/d92a7c706.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4916/5734/files/magomaxidisamefu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8896/0919/files/69733179200.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5294/8901/files/gidun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2280/3366/files/64982265573.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1645/4305/files/sefidepibodev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6674/4214/files/lefisilu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1455/3763/files/66529004567.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7316/6757/files/49849029985.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5651/2667/files/19992014985.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8180/8549/files/convert_to_zip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0973/5845/files/pumobiza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9524/2392/files/suzixumowubuk.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 3

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_off000061be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61BE 4968 bytes
SHA-256: 8a1552ef111df6677184bcebc3ce568e1f9c5aa0f6e20d9cfe878dd842ddbe62
font_01_sfnt_off000072bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72BC 10776 bytes
SHA-256: 8330ded6988744a1d7b27c4fd6dd5d33fe678f7e1a63614075721bfa15345f71
font_02_sfnt_off00009740.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9740 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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