Malicious PDF — malware analysis report

Static analysis result for SHA-256 deb474fe5c00acd9…

MALICIOUS

PDF

43.6 KB Created: 2020-08-01 06:39:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a657a57481d6820a74fb93f65634a612 SHA-1: c4646c9e67e45b4265652f27ac3aa973c1ce7fda SHA-256: deb474fe5c00acd96bb541671be854f42d649338a50152869619394da40187f5
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a link farm. One of the primary links, 'https://ttraff.cc/pify?keyword=ggplot+change+axis+labels', is known to redirect to malicious infrastructure. The presence of numerous links, coupled with the ML classifier flagging this PDF as malicious, strongly suggests an attempt to lure users to harmful 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.cc/pify?keyword=ggplot+change+axis+labels In PDF document text
    • http://files.berryblueboutique.net/uploads/1/3/1/1/131163540/2195466.pdfIn PDF document text
    • http://files.ohbot.co.uk/uploads/1/3/1/8/131856956/1786514.pdfIn PDF document text
    • http://files.southeasternforesttherapy.com/uploads/1/3/0/7/130738752/3144258.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/1/0437/3938/1912/files/71766596802.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5352/9753/files/nudewatuxepibipuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3917/6357/files/80806020781.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5373/6348/files/99696574193.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6041/0021/files/bezebavamikokusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2139/4343/files/91105401005.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9894/8255/files/81162805200.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1502/0448/files/wofufemowividalizatavarip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8113/8343/files/fixifojadigudegopufajezag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9166/5830/files/mulixamaziwofazosodutaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/80463449019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4087/4408/files/14361803281.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 5

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_off00006288.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6288 5336 bytes
SHA-256: d37de440ba57035065a1398eefaf12049897d5febf8138d1b1f2732c8153bcb3
font_01_sfnt_off000074b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74B5 14120 bytes
SHA-256: 96d04e33cdeb5b4aa786ce1402a9bdcf11779c5f6765c7b7a8647e2adbef08a0

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