Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca1f76b232c941fd…

MALICIOUS

PDF

43.1 KB Created: 2020-08-06 03:37:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d4274bc23633f64f604b33306ee8e0fd SHA-1: 4a3057a4a2f02291e50ee66ce8b089f1e028d7ff SHA-256: ca1f76b232c941fde5242bb377d9df573fbc1600edd66931df8551b2ce7d3ead
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=behavioural+finance+biases+pdf'. This indicates the document's primary purpose is to redirect users to malicious sites. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to improve search engine ranking for malicious content. 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=behavioural+finance+biases+pdf In PDF document text
    • http://vifukupun.xmomentsports.com/uploads/1/3/0/8/130874064/ruzurulolaxox.pdfIn PDF document text
    • http://files.5fingersand10toes.com/uploads/1/3/1/4/131406684/buzazatulozagedig.pdfIn PDF document text
    • http://files.keaolono.com/uploads/1/3/2/6/132682230/ea34bd430.pdfIn PDF document text
    • http://files.lewandbuilding.com/uploads/1/3/1/8/131871484/lewujax-jotalaluw.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/1/0427/6604/1244/files/61882352296.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9227/9445/files/kosobofupake.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3102/0198/files/13030023151.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4291/2926/files/8569325401.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2670/1726/files/84473253312.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3583/6072/files/38390894894.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1888/7068/files/hydro_gear_cross_reference.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9531/7911/files/94431650993.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9430/2117/files/67870176000.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 5

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_off000069ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69EE 5492 bytes
SHA-256: 7f223142b367634885a99eac5fd1221cce8def7d3e058e3968f51791a3cb676d
font_01_sfnt_off00007c97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C97 10392 bytes
SHA-256: 292f8209e0105bec201e62c35176283c2cf97dc69a09803f91c60bf542175a49

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