Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ad2a35a97c5c865…

MALICIOUS

PDF

72.2 KB Created: 2020-08-03 20:55:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 190b05bb085ad39f4fd00c7e78c97ff4 SHA-1: 86a5af51a2b71ea0ead1eac983afd664adbedf55 SHA-256: 5ad2a35a97c5c865b8f2d12d0fc10632c6353fcdd2a7aeb85eee1af6859dea43
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to a redirector service (ttraff.cc) that is flagged as malicious. The document body and heuristics indicate a lure for a PDF download, likely a phishing attempt to lead users to malicious sites. The presence of a link farm and redirector suggests an attempt to distribute malware or phish for credentials.

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=difference+between+manual+and+automatic+film+processing+pdf In PDF document text
    • http://files.andyabram.co.uk/uploads/1/3/1/0/131070973/7428439.pdfIn PDF document text
    • http://files.drclaudetteking.com/uploads/1/3/1/4/131408502/c8dd9.pdfIn PDF document text
    • http://files.ksmithla.com/uploads/1/3/1/4/131406717/7ee3e57e.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In 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/1/0435/7426/3963/files/morilosuru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2031/2991/files/86549415503.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9041/8591/files/nenavibokubiza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/9680354999.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5597/2506/files/botw_max_hearts_and_stamina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9906/2421/files/86313132411.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8296/3349/files/18855913155.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7548/4313/files/xuvozibu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4402/7038/files/md_form_510.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0705/7825/files/dakov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xizujebekox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27622062760.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5032/0543/files/lowevagakaxewomugabo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7851/6885/files/buxeruzika.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d014.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD014 2320 bytes
SHA-256: d386d43a0acb803e672c9a07a6d3dd4be0ef86a9819c95bcdbd4f346483cf0f1
font_01_sfnt_off0000da6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA6D 5708 bytes
SHA-256: cf0e4b135297037a22f6eafe5de5fc63e03dbc43d3b908b0070fd859c9a7dea0
font_02_sfnt_off0000edcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDCF 10788 bytes
SHA-256: 8a28b8bb5ecb38f68fa0f9947a03b275c2809d59f97e08f02a7f763e8331b307

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