Malicious PDF — malware analysis report

Static analysis result for SHA-256 3374b8755193afca…

MALICIOUS

PDF

40.4 KB Created: 2020-08-08 22:05:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 197fe96b808dc066303af9ef9a7008b3 SHA-1: 5d992755e36d6c3d40348d2c71a125cd07a90a73 SHA-256: 3374b8755193afca94901fc3677ce53ff55973b33cc6a155f8985dd1d6e8f3dc
194 Risk Score

Malware Insights

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

The PDF contains embedded links that lead to a known malicious redirector, specifically 'https://ttraff.cc/pify?keyword=siemens+alstom+merger+pdf'. The document body, though heavily obfuscated, contains keywords related to a merger, suggesting a lure to entice users to click the malicious link. The presence of numerous other PDF links further indicates a link farm strategy to obscure the malicious destination.

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=siemens+alstom+merger+pdf In PDF document text
    • http://files.freshdatesbyanderson.com/uploads/1/3/0/7/130739697/5182188.pdfIn PDF document text
    • http://files.paigetowers.com/uploads/1/3/0/8/130874620/bfde04b.pdfIn PDF document text
    • http://mavopagu.tuskiescurbside.com/uploads/1/3/0/8/130813528/jowaxixejek.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/1/0429/4731/3827/files/3801673863.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2852/7776/files/chronicle_of_a_death_foretold.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4173/4312/files/marujavarawetofak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7175/0822/files/gopamurenozoxapivunozewi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0878/5562/files/check_on_it_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9204/2137/files/rutijenofezujawepoda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3848/2332/files/46090480020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5271/1581/files/63925524843.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5921/6537/files/gozoxolovo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4042/3592/files/minecraft_powered_rail_spacing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/13073695904.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 1

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_off000060f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60F0 5464 bytes
SHA-256: 094c875982952e87eaeaeefde713eb56802da0e6ed7b0fa833a7278a4d321ad5
font_01_sfnt_off00007368.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7368 9820 bytes
SHA-256: affeed7995d7ad3ac4a9b7306e7f8786f6f859e730fda7ac8078f3a9208b3220

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