Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe793b8b87ae4900…

MALICIOUS

PDF

37.8 KB Created: 2020-08-23 13:06:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 036f1761001b9321462652b83ac8765b SHA-1: 68e84c3024a114129e1ae0bb8541a9e532f058ad SHA-256: fe793b8b87ae49007e2318c50f9b3c796aa27615e9e3ca53bbb32beee1a51aa1
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely intended to lead the user to a malicious site. The document body, though heavily obfuscated, contains text related to worksheets and includes the malicious URL, suggesting a social engineering lure. The presence of a large number of external PDF links, many hosted on Shopify, further indicates a link farm or SEO poisoning attempt to distribute malicious content.

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=consonant+blends+in+sentences+worksheets In PDF document text
    • http://zamematir.tintawitaelderliving.com/uploads/1/3/0/8/130874038/8938673.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/1/0429/3056/9382/files/riliruwowagoxosi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9330/2178/files/sobaginozugatuze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5603/7017/files/cinderella_2015_mp4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9444/9055/files/45990423846.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6350/0197/files/91247855792.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1597/7630/files/nexefatojarib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2014/7093/files/magisterium_libros.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5286/6467/files/mabejuranekuwazono.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jepomosojavadoji.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_off000056d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56D0 5228 bytes
SHA-256: 0103de2104c6068da5a35f373ea1d41c8016348e4841d3b3498273d38ea59619
font_01_sfnt_off0000689b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x689B 9932 bytes
SHA-256: 191ae5a06e84a4d2c37badf1e4c11072a4de94513ff5ee1313eadea8c0bd3458

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