Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3cbd3d6af11c9c3…

MALICIOUS

PDF

40.8 KB Created: 2020-08-19 22:02:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b70403115ce92b9122601715d2aebe15 SHA-1: 0eab8b945c8cc56b5a717578249ee78eff9d6666 SHA-256: d3cbd3d6af11c9c3ffbbb573d50f3d52e32b74040bde3e9a0bff3df2704b7c04
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL, suggesting it's the primary lure. The PDF also contains a link farm heuristic, indicating a large number of outbound links, many hosted on Shopify. The ML classifier strongly flagged this PDF as malicious. The overall pattern suggests a phishing attempt using a deceptive link.

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=live+football+streaming+apk+windows In PDF document text
    • http://files.justinpearsongalleries.com/uploads/1/3/2/8/132815015/7302710.pdfIn PDF document text
    • http://files.bethanyshayporteous.com/uploads/1/3/1/6/131606111/dugilegukuwe-radimaberidu-pokeru.pdfIn PDF document text
    • http://nepewab.asbopticianry.com/uploads/1/3/2/3/132303035/9391520.pdfIn PDF document text
    • http://files.makeupbybb.com/uploads/1/3/1/3/131381712/zinomezumajiwet_xamaminiwoxesus_radan_gekero.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/1/0431/7216/7841/files/57187507890.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1076/8546/files/sosopavanosisa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9154/2681/files/76781912234.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2396/5080/files/learn_business_english_writing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8113/6296/files/877-_417-_4551.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5535/7852/files/6983326264.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1984/4258/files/tevejasomesusovu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8565/2375/files/kusigazokudap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5326/8642/files/kefoxirujizobezewuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3874/3450/files/skymet_monsoon_report_2019.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_off000060d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60D1 5656 bytes
SHA-256: dd37f932a32fdc53adfa5c51cdd9c6fc7b195cfe49ae7732446a12b44bc1846e
font_01_sfnt_off00007405.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7405 9992 bytes
SHA-256: 23adea42cfda1ee2a5fcd7a28ef326d5c3ff70bac5f2aa60849831647462fb65

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