Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca9a3377a04f30aa…

MALICIOUS

PDF

32.9 KB Created: 2020-08-27 17:14:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ca0437047a652e879981970a9d057100 SHA-1: 24103bad24c14cfc93f6b643f5b2a20f862b6d3f SHA-256: ca9a3377a04f30aae3d058b51278c6023687121ab5e533fdbe2efbd4d309edc7
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to `https://ttraff.me/pify?keyword=2ds+xl+skins`. This indicates the document's primary purpose is to lure users to malicious infrastructure. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute the malicious content. The ML classifier also strongly flagged this PDF as malicious.

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.me/pify?keyword=2ds+xl+skins In PDF document text
    • http://gifesemus.mohannadgharaibeh.com/uploads/1/3/0/7/130775565/f09d8615c3762.pdfIn PDF document text
    • http://latepi.texasangiesadventures.com/uploads/1/3/2/7/132741508/7135791.pdfIn PDF document text
    • http://files.fingerhutpastries.com/uploads/1/3/0/8/130873708/ff00eb.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/1/0427/7207/0556/files/buvaxaxok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2223/8375/files/credit_reference_request.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7142/9025/files/hillsong_channel_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9276/2006/files/bumblebee_transformer_color_page.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kuzizurogepibisomagin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6545/9366/files/48741615484.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7783/6702/files/jeperiwosazem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75609531209.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9038/5821/files/avr_gcc_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3692/5342/files/79920994062.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_off000048b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48B6 4680 bytes
SHA-256: 730f3d033daddc05835dbdfb23ae2c2fcf162c79e2caa5a1006ad208eaffa805
font_01_sfnt_off000058b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58B8 8976 bytes
SHA-256: 420871649a953283a1cb9375ef6f2980d348287b88dde463d5f2e51e08c0950a

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