Malicious PDF — malware analysis report

Static analysis result for SHA-256 cfa75d1fbc4e58e9…

MALICIOUS

PDF

65.0 KB Created: 2020-08-05 22:54:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ed0e04658c4103754ff9023332442cc9 SHA-1: fd1d8270acfeb0eb9e27129f2360f86051a872fd SHA-256: cfa75d1fbc4e58e96189212051f3763ea41f7d41620b7bbb8636a3d3bcae6df0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=catholic+biblical+apologetics+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The presence of a large number of external PDF links, many hosted on Shopify, further suggests a link farm or SEO poisoning tactic to attract victims. The ML classifier also strongly flagged this PDF as malicious.

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=catholic+biblical+apologetics+pdf In PDF document text
    • http://files.corealis-ing.net/uploads/1/3/2/8/132814448/24ac7.pdfIn PDF document text
    • http://files.guyingram.com/uploads/1/3/2/6/132681596/3295852.pdfIn PDF document text
    • http://wuzudi.nycmiddleschoolbasketballleague.com/uploads/1/3/0/7/130738524/rogaxorerobaxajat.pdfIn PDF document text
    • http://nolalo.madisonfirstchurchofgod.com/uploads/1/3/1/3/131378780/7452f.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/1/0428/1715/9335/files/61421283929.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6583/4649/files/buganda_kingdom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2136/8482/files/mutajavavasemenusodog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/laxefasigapabaxirasu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6398/3769/files/21463925429.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4225/8587/files/79105593523.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1543/0559/files/zukafisasulimonuxoku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6516/3422/files/7172780520.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4291/2926/files/powazikifad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3203/4976/files/77864892564.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0733/6857/files/luvege.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2514/5760/files/87951752465.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_off0000b958.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB958 5364 bytes
SHA-256: 2fe4567086c16023967fe5e706414dace75a4abe8737d149a84357332cc5cf6e
font_01_sfnt_off0000cb8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB8E 13052 bytes
SHA-256: 0af7cc3a49408ea86eb0238c2f93201ccff5456f8d9252197d07c02a6c97e22e

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