Malicious PDF — malware analysis report

Static analysis result for SHA-256 acc8cfd14a32b784…

MALICIOUS

PDF

46.3 KB Created: 2020-08-17 10:41:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5d132a172e3b673c64c9020d017bde3f SHA-1: deb105c4163240bf6d3f7ea590244b99f896d4ff SHA-256: acc8cfd14a32b784399f603e112fbcce423ad60f7db0866d9debd3813e87eba9
202 Risk Score

Malware Insights

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

This PDF file contains multiple heuristics indicating malicious intent, including links to known malicious redirector infrastructure and a large number of external PDF links, suggesting a link farm for SEO manipulation. The ML classifier strongly flagged this PDF as malicious. The embedded URL 'https://ttraff.com/pify?keyword=html+form+templates+design' is identified as a redirector, likely leading to a phishing or malware download 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=html+form+templates+design In PDF document text
    • http://files.planochoir.org/uploads/1/3/1/4/131437885/mufulozivimiro.pdfIn PDF document text
    • http://files.affordablestoragesanangelo.com/uploads/1/3/0/8/130813887/6d9e7.pdfIn PDF document text
    • http://files.stincrowvoden.com/uploads/1/3/2/3/132303219/f56b3720a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1411/1903/files/16295909707.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6127/2983/files/zipol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7864/7957/files/malayalam_bible_quiz_genesis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7725/4814/files/dunarukekipa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/7860/3172/files/zowugewuxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7614/1731/files/merge_online_free_unlimited.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3573/7755/files/jotomone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6150/2362/files/xujazudesusatipawum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8075/3058/files/52413430263.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7673/0533/files/boxokodubowuvote.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 5

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_off00005a73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A73 5108 bytes
SHA-256: 8ccd2d6bb4d416a01df35068a634f2bb53a8600bd349df7c8af3ffabc92aa851
font_01_sfnt_off00006bae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BAE 15752 bytes
SHA-256: dea8ff63e227f3b50b8c0c87e06403fa32980dbf61c38df42753c55217a06506
font_02_sfnt_off00009c9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C9E 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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