Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d2c5c4b884810e5…

MALICIOUS

PDF

48.4 KB Created: 2020-08-22 11:16:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4325b98467596fecc7e9cf1249d5a900 SHA-1: 8fd05efa326ae93595ec9a03170bfab86fd3c33f SHA-256: 1d2c5c4b884810e529ae62e016ef414dc541136677981620b59226889679086d
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=fourier+transform+mass+spectrometry+principles+and+applications'. This indicates the document's primary purpose is to lure the user to a malicious site. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to obscure the malicious redirect. No scripts were extracted, but the embedded URLs and the redirector heuristic strongly suggest a phishing or credential harvesting attempt.

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=fourier+transform+mass+spectrometry+principles+and+applications In PDF document text
    • http://files.kristindonerstudios.com/uploads/1/3/1/3/131380871/xudetuka.pdfIn PDF document text
    • http://files.nileswesttheatre.com/uploads/1/3/0/7/130740116/c109eace814a5ba.pdfIn PDF document text
    • http://files.goldkingdomint.com/uploads/1/3/2/7/132740694/riroselutulemo.pdfIn PDF document text
    • http://sonuvo.with-piper.com/uploads/1/3/1/1/131163635/kuwop_muvufanen_pagexizakatof.pdfIn PDF document text
    • http://files.lafta.org/uploads/1/3/0/7/130739883/8605898.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/1/0434/5721/6678/files/dictionnaire_de_l_acadmie_franaise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5564/3813/files/tratamiento_de_amigdalitis_en_adultos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9880/8224/files/26548432526.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4956/6886/files/70929098373.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0595/9574/files/espn_fantasy_basketball_rankings.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6563/9073/files/sixipibesotoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/5988/0603/files/nutrition_label_worksheet_answer_key_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3692/6374/files/vusix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7230/7875/files/gubibexozekitovusuwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/6369/3732/files/nested_if_statements_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4843/4844/files/zoology_bsc_1st_year_book.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_off0000750b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x750B 5360 bytes
SHA-256: fff4fe0ad094ef7abe3f522d536004cb432f4983a71b7e05fe8aa56f2fe54d00
font_01_sfnt_off0000873f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x873F 14548 bytes
SHA-256: f9775c6067de74f620b06eb01ad1026ba4fc2fec042002c01d847550ab5f3b04

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