Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bf82ee1900d0360…

MALICIOUS

PDF

45.3 KB Created: 2020-08-02 19:41:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2f3da38a34fb415c165c61d3b26cce9c SHA-1: 2903c4ee7c6be0c3248d226486caec4edf917672 SHA-256: 9bf82ee1900d0360c00b989fb87d9099469c92d304bbf97862e1ddbc61f00f9a
194 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one pointing to a known malicious redirector (ttraff.cc). This redirector is likely used to obscure the final destination, which could be a phishing page or a malware download. The ML classifier also strongly indicated maliciousness. While no scripts were extracted, the presence of a malicious redirector and a link farm 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=deb+command+not+found In PDF document text
    • http://files.aleesahdarlison.com/uploads/1/3/1/6/131606046/8758989.pdfIn PDF document text
    • http://files.learnhealing.org/uploads/1/3/0/8/130814874/7559046.pdfIn PDF document text
    • http://files.napavalleybus.com/uploads/1/3/2/3/132303337/zobut.pdfIn PDF document text
    • http://files.foto4funphotography.com/uploads/1/3/1/8/131871633/1623876.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/1/0433/3980/8922/files/64620419110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xakikalimakimoxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9444/2133/files/lereza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7727/1713/files/set_up_local_web_server.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6835/8807/files/27047910789.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4517/4939/files/ratemajosisog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5308/6885/files/60132959444.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0712/3357/files/nowixizezopovesi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9862/8501/files/ziduvo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3366/4420/files/segola.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4932/0610/files/potusobija.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9501/4056/files/gavurevozufetunab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9724/4316/files/xazojurasatod.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_off000074b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74B0 5000 bytes
SHA-256: edcc5116bc17d91a2431765afcd9cc1c1c9bfd545d48b4589bd439aeda3f653c
font_01_sfnt_off000085a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85A9 10124 bytes
SHA-256: 2c4ab4a2068412ec192fad3d8eebf1609d1b94942ff7f369e9e732d8323efeb3

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