Malicious PDF — malware analysis report

Static analysis result for SHA-256 311d0eadb67fdc11…

MALICIOUS

PDF

44.1 KB Created: 2020-08-14 09:32:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7fb3cfd7c11291cffd290a12fd859c38 SHA-1: 4a9817b52eceee73b85e463c5a31deb20a5b43e7 SHA-256: 311d0eadb67fdc112648f9095ca48937bf3d5e4408171a8729203bd378afb791
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains the same URL, suggesting a lure to a malicious site. The presence of numerous links indicates a link farm strategy to obscure the final destination. No scripts were extracted from this sample.

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/wb?keyword=adjetivos%20posesivos%20en%20espanol%20pdf In PDF document text
    • http://files.fmodyssey.com/uploads/1/3/2/7/132740352/3697684.pdfIn PDF document text
    • http://files.jeff-watson-critical-math-thinking.com/uploads/1/3/0/7/130775400/9730aaea5324be.pdfIn PDF document text
    • http://files.jimsalvucci.com/uploads/1/3/1/4/131437444/7356329.pdfIn PDF document text
    • http://files.finefoliage.com.au/uploads/1/3/2/3/132302993/gudejekinujitalar.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/1/0447/6174/3509/files/14085975499.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2236/9446/files/68958331551.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6616/2341/files/52949158751.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1239/9010/files/23802149737.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5322/7936/files/92246656576.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0206/1215/files/kolulanos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5564/3813/files/third_eye_meditation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3747/4466/files/bepidodaro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0127/3758/files/kinobody_superhero_bulking_program_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6090/1528/files/telenovela_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0009/4112/files/celery_juice_medical_medium.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9606/4671/files/easy_fingerstyle_guitar_songs.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006117.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6117 2912 bytes
SHA-256: 8e946ab76871b4001a8eb2020b863cc680b9804028e4ddcab6f6e8a2704c6764
font_01_sfnt_off00006b7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B7A 5064 bytes
SHA-256: ae6efc88cd0f1564601db5e25a7b1adf970f56d5a833246200ee86d17ddfbf65
font_02_sfnt_off00007cd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CD9 11188 bytes
SHA-256: 6f5046d8b22ff456a517ce49b4d9d9508105c055f3b05812c9db2e1713a1f1f1

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