Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa642bed5e0a4432…

MALICIOUS

PDF

42.3 KB Created: 2020-08-13 21:21:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ae4339537c515e547503758349a95685 SHA-1: 26d3bf64db6f709325f04496298c171ab6ad9f11 SHA-256: aa642bed5e0a4432b9e58ddc395db3b4cd8dbb7dbc242ebed3914e61494afbd3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at ttraff.com. This suggests a phishing or redirection campaign, likely attempting to lead users to malicious content or further compromise. The document body, though heavily obfuscated, contains the URL https://ttraff.com/pify?keyword=guided+reading+level+of+fly+guy+books, indicating a lure related to children's books. No scripts were extracted from this sample.

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=guided+reading+level+of+fly+guy+books In PDF document text
    • http://files.elkcountyhistoricalsociety.org/uploads/1/3/0/7/130775195/nitunukilid_tosogo.pdfIn PDF document text
    • http://folinibo.opencommunitytheatre.com/uploads/1/3/1/4/131413718/4c41aa50.pdfIn PDF document text
    • http://luvupixur.dkgthetazeta.org/uploads/1/3/0/7/130740221/kowezetixemalux.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/1/0428/8466/1414/files/belezisabojapogozafe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/marifurozijuzaledenikegi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8260/2904/files/27526642486.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1298/7802/files/zupal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/1033/7440/files/xegevovezezisukuraxusatu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9282/0643/files/alternative_asset_classes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7007/6566/files/3d_maker_for_solidworks.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/62780844137.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/33374625424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1691/2023/files/88174558714.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2865/1938/files/30620763821.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8827/1773/files/digital_electronics_questions_and_answers_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7019/2802/files/69464097335.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 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_off00006624.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6624 5472 bytes
SHA-256: d10caa00f6707e2d7f41277aae8eac722ad3335aa2cf6cdb5d76052d017551ec
font_01_sfnt_off000078e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78E3 10352 bytes
SHA-256: 05a940f233fb48fcd8458dfcb8651855c78efdde3d7d4e1dee380f0f8a6e22d7

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