Malicious PDF — malware analysis report

Static analysis result for SHA-256 a110939252338912…

MALICIOUS

PDF

39.0 KB Created: 2020-08-02 21:59:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 61dbebf448b07a3cb221c3253b4d8ebc SHA-1: c876f8469afce7b0009101f62275df115e338525 SHA-256: a11093925233891298c5a8a265c95572356597e471af669fe3e9941fdf70414b
194 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, with numerous embedded URLs. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is likely used to obscure the final malicious destination. The document body, though heavily obfuscated, contains the same redirector URL and a reference to 'github', suggesting a lure related to online content. The presence of many Shopify-hosted PDF links, some marked as benign and others unknown, indicates a broad distribution strategy.

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=how+to+get+anime+on+vyond+github In PDF document text
    • http://files.rachelmariephotography.net/uploads/1/3/1/4/131438069/844036.pdfIn PDF document text
    • http://files.nadinina.com/uploads/1/3/1/3/131379740/masuwatur.pdfIn PDF document text
    • http://files.evan-hawkins.com/uploads/1/3/0/7/130775987/7544639.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/1/0431/8704/4515/files/muvulupimatunisolumusetox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9925/1097/files/elf_yourself_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/31240515614.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1024/5279/files/21029153727.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9419/5870/files/29643952354.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6127/8870/files/xapukodi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nidosavexurirevinuno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4089/1292/files/gupuviveb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3305/0779/files/winalipadulagoval.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4474/8950/files/41134296782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7228/3033/files/amsterdam_recorder_obits.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4393/0791/files/3989275920.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6576/1176/files/bupojuxelodumud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7007/0690/files/fanarum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9435/1778/files/60288228641.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 7

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_off000059e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59E8 5288 bytes
SHA-256: 40906a157b597801e212d5a0022354074104aad42bde94d60fb080dc14f75d64
font_01_sfnt_off00006be2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BE2 10324 bytes
SHA-256: 13bec3536b35387aaf2eacb335915f816d601a4962ecb4a2ddc13efd693f51ac

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