Malicious PDF — malware analysis report

Static analysis result for SHA-256 74088b70ef3c1e6c…

MALICIOUS

PDF

48.4 KB Created: 2020-08-07 07:54:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4bdcc26c1e3000a578eb9c55c03d7c78 SHA-1: e0c3db442d662ce8e4eb33c8f6b3bf2c44b4fbf9 SHA-256: 74088b70ef3c1e6c45856f4c8f0455d488c73d0734f009667840c4653ca49912
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating malicious redirector links and a link farm designed to appear as legitimate content. The document body text, though heavily obfuscated, contains a URL that matches the malicious redirector found in the heuristics. This suggests the primary goal is to redirect the user to malicious infrastructure, likely for further exploitation or phishing.

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.com/pify?keyword=cnc+machine+pdf+file+download In PDF document text
    • http://files.whatnowedtech.com/uploads/1/3/1/4/131407164/09059ff.pdfIn PDF document text
    • http://files.gordonoyer.com/uploads/1/3/1/4/131406741/2213793.pdfIn PDF document text
    • http://fujax.liveplayband.com/uploads/1/3/0/9/130969592/dixesakorokuvuk-sufuvujara.pdfIn PDF document text
    • http://files.southcallawayfootball.com/uploads/1/3/0/8/130814226/d33ebe.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/1/0437/2067/1386/files/54269352762.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1008/8342/files/shrek_3_soundtrack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4703/3752/files/nilijadedozufizemuwabapot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9417/2058/files/venavuninulepolumozedel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5147/5351/files/lojuwilik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0454/9544/files/50_shades_grey.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4073/3341/files/furomakokosodulogip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1234/9334/files/zigaxogifazimorisif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2733/2252/files/calendario_serie_a_19_20.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1792/0934/files/dizesaledutufila.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0797/5335/files/xaromosunifegaf.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 6

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_off00007c38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C38 5120 bytes
SHA-256: 73d6a5304490652d8b52d2aba8a4966f5dbae818dfb1b2ed617b87f70bea18ff
font_01_sfnt_off00008d92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D92 12084 bytes
SHA-256: 12456b90e18a59a49dbebc5c54c62b68d618a3346b90ea1569ca1f35f8741188

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