Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c45086e7001b39b…

MALICIOUS

PDF

42.0 KB Created: 2020-08-16 18:32:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 317ab6abfb1d584b5aa0de5480341a49 SHA-1: f00daaa690e31cf16cb78141f904e7667b26969b SHA-256: 2c45086e7001b39bf75fee6e0e9713889d9f0a99f9de768e026ca16d2e023d2d
194 Risk Score

Malware Insights

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

The PDF contains a link farm pointing to numerous external PDFs, with one specific URL identified as a malicious redirector. The ML classifier strongly indicated maliciousness. The primary attack vector appears to be social engineering, luring the user to click on the malicious link under the guise of a 'fingerprint card template'. No scripts were extracted, limiting the analysis of further payload delivery or persistence mechanisms.

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.ru/pify?keyword=fingerprint+card+template+pdf In PDF document text
    • http://zuvabijav.chrisandkell.net/uploads/1/3/2/3/132303382/6965238.pdfIn PDF document text
    • http://files.postalhistorysociety.org/uploads/1/3/1/8/131858791/60e266f5d0.pdfIn PDF document text
    • http://lunolelo.drstephanisko.com/uploads/1/3/1/8/131858419/ae5a9a13808a3a.pdfIn PDF document text
    • http://fuzawifa.smallpawsbiglove.com/uploads/1/3/1/4/131438397/cfbac66e75.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/1/0439/4975/2478/files/anxiety_signs_and_symptoms.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/7023/8370/files/abstract_algebra_by_dummit_and_foote_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0631/9001/files/evs_project_on_green_revolution.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9482/7418/files/demaka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5486/6337/files/biwisob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2416/1695/files/86679889450.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8606/7352/files/jurnal_tentang_bahaya_rokok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3505/7559/files/rososetejopivuloxegep.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
🗂 Part of campaign: rattlesnakesafe.com 6 samples

Related samples 2

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_off000065c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65C6 5252 bytes
SHA-256: cb227c0512aea497a5967a85a6f56980787afb15b304937712cd662479bdf6c1
font_01_sfnt_off00007790.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7790 10496 bytes
SHA-256: f5d3d06268509a820b90f6c54c7476e93375f156144133fc32c84986280f34fa

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