Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a9eea77b2bb0032…

MALICIOUS

PDF

44.2 KB Created: 2020-08-19 21:44:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 51cd3d424c03e8519822c36cabfda4c3 SHA-1: 0af7bcba2daa9eb67ab677e9b4c4bcb0e91bee49 SHA-256: 2a9eea77b2bb003231867fe3c3c2fb22fdd82051bc55b946936c1c1bdfae4ee0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a link that redirects to a malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the string 'Template for personal finances' and the malicious URL itself, suggesting a social engineering lure. The PDF_SEO_LINK_FARM heuristic indicates the presence of multiple external links, further supporting the malicious intent of redirecting users to potentially 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.ru/pify?keyword=template+for+personal+finances In PDF document text
    • http://files.niceskateboard.com/uploads/1/3/1/0/131070581/9919938.pdfIn PDF document text
    • http://files.lakesidechorus.org/uploads/1/3/0/7/130740191/7344ddac2edce.pdfIn PDF document text
    • http://files.powerofplaywilmington.com/uploads/1/3/2/6/132683142/satoweso.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/1/0434/3490/1660/files/57283308584.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0885/2117/files/30277840358.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5537/2695/files/14400864576.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7129/7943/files/wikewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7679/4006/files/bias_fx_keygen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2400/6823/files/biology_class_11_chapter_2_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0360/8216/files/novorilexenuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1093/1358/files/30566940662.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6853/8521/files/kinuzadesidobolinanofo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9041/7566/files/feperijad.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 4

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_off00007141.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7141 5112 bytes
SHA-256: 27a6c4a0b7cab2d4beb54d9aba353e780c314eb11c5714cac458d2641727c086
font_01_sfnt_off0000828b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x828B 9868 bytes
SHA-256: 526a3be09420231903f60039a1fdf224fb0f8f1c369b5266c93563ddbab8a21f

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