Malicious PDF — malware analysis report

Static analysis result for SHA-256 9aff64a03ebcbb24…

MALICIOUS

PDF

39.5 KB Created: 2020-08-14 18:29:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: db6a4e84b3e66fa724334885119a8af8 SHA-1: a42d69cf621735a2821d86f4df2eaa55b8e36b7d SHA-256: 9aff64a03ebcbb24a3bf28df1ec2d6474a2d0104b5efab3ec6f45576742b4024
194 Risk Score

Malware Insights

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

The PDF contains a link farm with 13 external links, including a critical redirector link to ttraff.cc. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the malicious URL and references to other benign-looking PDFs hosted on Shopify, likely to lend legitimacy to the overall lure. The primary intent appears to be redirecting the user to malicious infrastructure.

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.cc/pify?keyword=caller+tune+jio+caller+tune In PDF document text
    • http://files.nxtgenerationenergy.com/uploads/1/3/2/7/132740415/sodegebu.pdfIn PDF document text
    • http://soxugig.stevenpaulcarlson.com/uploads/1/3/1/3/131378776/755124.pdfIn PDF document text
    • http://files.12thstreetbaptist.net/uploads/1/3/0/7/130774972/zusitesofosigal.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/1/0431/1970/6273/files/battle_stadium_don.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1378/2179/files/playercorefactory_xml_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7665/7051/files/dalupumovo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6819/4978/files/47215976714.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2816/0420/files/38862181646.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5313/8591/files/8322534106.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4891/0491/files/8541893464.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5086/8646/files/4821860630.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/deved.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8197/1365/files/dilonemexofuzuxizid.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_off00005f73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F73 4596 bytes
SHA-256: f5dc68e0d00dfcd7e604b22ebf25c4dad90ee7f8fe99dd0862e994c1e772e0d7
font_01_sfnt_off00006f23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F23 10032 bytes
SHA-256: b47a018e4bba1f7051cb8c015ffbbcc53ed0329333162f77a81ecefdb1684ce3

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