Malicious PDF — malware analysis report

Static analysis result for SHA-256 19eddd3d3ffdc12a…

MALICIOUS

PDF

45.1 KB Created: 2020-08-10 18:48:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 26067f0053ffcd3d15e01857437c5ea0 SHA-1: a04dab59f228b27f59abc31e5059c4af3f64032c SHA-256: 19eddd3d3ffdc12a287987320efc6a517413f599b2aa449a7c778a6ff086151b
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The primary malicious URL is https://ttraff.com/pify?keyword=article+writing+format+cbse+class+10+pdf, which is likely part of a SEO poisoning or link farm attack to drive traffic to potentially harmful sites. The ML classifier strongly supports the malicious nature of this PDF.

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=article+writing+format+cbse+class+10+pdf In PDF document text
    • http://files.anniesavoy.com/uploads/1/3/2/6/132696112/nisagerudozubadopo.pdfIn PDF document text
    • http://files.bridgeandcivil.com/uploads/1/3/1/4/131407901/rabitaxeregu_kijozojajupal_mubenurudamunor.pdfIn PDF document text
    • http://gapul.c21discoverycharityevent.com/uploads/1/3/0/8/130814328/795365.pdfIn PDF document text
    • http://files.nekimastrategy.net/uploads/1/3/1/6/131637839/94fb3ad2a0c7aa2.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/1/0433/0687/7080/files/10217245918.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9831/6707/files/rotudanex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9613/6097/files/philadelphia_downtown_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/lorubi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3910/4917/files/36395060926.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0382/2755/files/lanupadanojosomokuda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1810/0637/files/18333323841.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4387/2150/files/82769474339.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2966/6724/files/bojeminikekulemomo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5313/7570/files/28002667939.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7338/8190/files/fexifiboluzokusebat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2518/6466/files/belorovowemulodulobebuv.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
🗂 Part of campaign: tukatafoundation.org 8 samples

Related samples 6

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_off00006f4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F4C 5892 bytes
SHA-256: 9f51373c79c3863b499476da6a21fd410cebb36f95fe01de63d423d4bbdd1fef
font_01_sfnt_off00008346.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8346 10492 bytes
SHA-256: 195e61f65b9382f2da3d58f98373864724a00521706b0953bbb8653671c541f1

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