Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a6fd820cebf0cb3…

MALICIOUS

PDF

44.2 KB Created: 2020-08-23 03:50:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2372523979df61546bc734641cbbe508 SHA-1: b2873676737edc9dfd4fdd6416cb45fde9946cf5 SHA-256: 4a6fd820cebf0cb370aca9cff408c72bacc3ec18ec958bce59b857e614d96336
202 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same redirector URL and a call-to-action phrase, suggesting a lure to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=universal+audio+apollo+8p+manual In PDF document text
    • http://files.tylershipmanmemorialcarshow.com/uploads/1/3/1/3/131398231/tenakib.pdfIn PDF document text
    • http://files.lonniefeather.com/uploads/1/3/1/3/131382243/8334960.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/1/0438/9529/2059/files/bits_and_bytes_ace_academy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8107/8686/files/85859150566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2221/9421/files/92482294656.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4819/8556/files/80057643515.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6764/5857/files/96680343823.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2240/1192/files/xisolubetelujiwaro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0342/9535/files/12954078414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7016/0032/files/82021122441.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8305/4757/files/zudigiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9086/9410/files/1360656335.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4546/9858/files/nirugivigavitusobazudime.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
🗂 Part of campaign: blendedscience.net 5 samples

Related samples 2

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_off00006df2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DF2 5348 bytes
SHA-256: 91da7d8d1734c6548b54ba05621028d57a94a1e2b3513a0ea95643bc2561fffa
font_01_sfnt_off0000800d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x800D 10568 bytes
SHA-256: 95f0dc3de741621ae68d6cf84dc9b889e99fcc661221abf75e4fd70efa616fda

Open this report in the interactive analyzer, or submit your own file for analysis.