Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4911ed196f67694…

MALICIOUS

PDF

37.3 KB Created: 2020-08-02 05:13:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6f62bfa10db478f63a1b4d8635119c79 SHA-1: 2c4b1e9efa56acaeb7d596ab18a08517eb255a47 SHA-256: d4911ed196f676944fbda24867e6590292d378c341d419fd1b0737d173efcae3
194 Risk Score

Malware Insights

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

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 exhibits characteristics of a link farm, embedding numerous external links, many hosted on Shopify, which is a common tactic for SEO poisoning or distributing malicious content. No scripts were extracted from this sample.

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=griffiths+quantum+mechanics+solutions+pdf+free+download In PDF document text
    • http://files.ofpastoralcharge.com/uploads/1/3/1/3/131384171/3ddbcb4e5.pdfIn PDF document text
    • http://files.whateverhetellsyou.com/uploads/1/3/1/3/131384359/7c9bdfd7df86.pdfIn PDF document text
    • http://files.carolinagartnerart.com/uploads/1/3/1/4/131454850/f2cf99835e8923e.pdfIn PDF document text
    • http://files.shotwellsharkband.com/uploads/1/3/2/6/132681033/diramad_vegikakafuzamu.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/1/0436/4707/4464/files/columbia_md_21045_weather.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0537/0791/files/jalerirabanepinuxuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5720/9753/files/51934746375.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4294/6724/files/12002541250.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9167/1705/files/xonobos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2670/1718/files/29827038966.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4891/9450/files/xewutivutesitegabasik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8996/1884/files/wixujaboxexopilupe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8020/2905/files/32193303709.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1359/4526/files/lumona.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0081/2952/files/munenolabepara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0155/1771/files/nulitilugoguforomib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3916/1500/files/zaketigebugoru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2177/0656/files/74165166027.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_off000053ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53AD 5644 bytes
SHA-256: 37c029b6964ea29ef2d5ef4137a7a1c7422f63c1b933782eb00c425ac06a329c
font_01_sfnt_off000066c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66C7 9668 bytes
SHA-256: a7a33514501c096980f7c8d1458b624a643762eb56829a18fa24a3f038b85396

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