Malicious PDF — malware analysis report

Static analysis result for SHA-256 afaeb6472b1247bd…

MALICIOUS

PDF

39.9 KB Created: 2020-08-22 01:20:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4ca8d7e27ee54f2800a1166f5dab783c SHA-1: 92adf80302905cd3f24f2d9e8036a56377a9b467 SHA-256: afaeb6472b1247bd28ef7e861434c09fc5ee80940e9084ffe3c9a46c7e80a858
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains the text 'Uncountable nouns exercises with answers pdf' and the malicious URL, suggesting a lure to disguise malicious activity as an academic resource. The presence of a malicious redirector indicates an attempt to lead the user to a further stage of attack.

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=uncountable+nouns+exercises+with+answers+pdf In PDF document text
    • http://fepabe.therosados.org/uploads/1/3/0/8/130874330/lisakiba_velakawasu.pdfIn PDF document text
    • http://files.bigbellceramics.com/uploads/1/3/1/8/131872042/c3ec560.pdfIn PDF document text
    • http://files.southwestcactusshop.com/uploads/1/3/1/3/131383821/66ff16bb4c07b6.pdfIn PDF document text
    • http://files.helpgmsrlss.com/uploads/1/3/1/4/131413678/fanezowakuzutiwima.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/1/0436/4356/8278/files/79305085911.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9019/8180/files/nezuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8535/7463/files/91522477450.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9446/5948/files/39104313732.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1997/6350/files/luzamirububim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9803/8679/files/43208715668.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3729/4745/files/64015914563.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/51098187394.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8770/7804/files/pabagovikopanotuvo.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_off00005dd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DD8 5536 bytes
SHA-256: fa447506fe6549cbaa9e6b46cb07e41ecd9010799912e733f77e36e2f634050b
font_01_sfnt_off000070ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70AB 10100 bytes
SHA-256: 395ee75955b1b5f85391e1aed21f080f15c250f6531832b9aa076adc293724c9

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