Malicious PDF — malware analysis report

Static analysis result for SHA-256 749b8f8fa7c0333e…

MALICIOUS

PDF

46.9 KB Created: 2020-08-14 19:14:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a209d02585fea0bbac7a49ea939fce20 SHA-1: 4c325be875aa07441d0f6e14785a0316b45d0cc8 SHA-256: 749b8f8fa7c0333e3de97be9e0b872541fb34adc8a42ea425eced83b6fd5fd1a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links that redirect to malicious infrastructure, specifically a redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains text suggesting a lure for a 'Tchibo cafissimo pure service manual', likely to trick users into clicking the malicious link. The presence of numerous PDF links and a redirector link strongly indicates a phishing or scam 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.com/pify?keyword=tchibo+cafissimo+pure+service+manual In PDF document text
    • http://files.uplift.ccsdtitle1.org/uploads/1/3/1/3/131379894/puvefa_jaxafutilidawin_wegepalevolof.pdfIn PDF document text
    • http://files.goldcoastpaediatrics.com/uploads/1/3/1/3/131379503/tiviwegovokenobat.pdfIn PDF document text
    • http://files.darrellneufeld.com/uploads/1/3/0/7/130776769/suvumodojidof.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/1/0431/4411/8423/files/xipunegogizuza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2276/8535/files/gosebezajoxomeme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wexidemunuviviradepinitim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9004/3285/files/goratetetomixajakuzafe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9001/6424/files/logojutetisas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2647/2345/files/22391872862.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5546/4104/files/83775672199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0473/8206/files/dekodafiwezugesitubugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0172/4577/files/30060826646.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9227/0494/files/manual_woodworkers_and_weavers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3164/8661/files/zofajadijuxafebow.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_off00007778.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7778 5404 bytes
SHA-256: 5987d1d24e458a526f41c04052dfbefdc879946fa44877b37553e48e27c11385
font_01_sfnt_off000089b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89B4 10808 bytes
SHA-256: c889502bc7008af6d6f25f0289e3fcabc14f09d10cc164205be799ef1f6bdedd

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