Malicious PDF — malware analysis report

Static analysis result for SHA-256 df0ace315c4163a0…

MALICIOUS

PDF

45.3 KB Created: 2020-07-30 17:08:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 62ac8655eb269894655ddd3a4ac3e138 SHA-1: b5971168c3937ea52fe1227e75a13ab3e636fd21 SHA-256: df0ace315c4163a062d79d1f5c017dae950b4fe9502b1b6cbacc0e049838e468
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with one heuristic specifically identifying it as a 'PDF SEO LINK FARM'. The primary malicious URL, 'https://ttraff.cc/pify?keyword=pros+and+cons+of+nuclear+energy+pdf', is flagged as a malicious redirector. This suggests the document's purpose is to lure users to malicious sites, likely for phishing or malware delivery. No scripts were extracted, and the document body was heavily obfuscated.

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=pros+and+cons+of+nuclear+energy+pdf In PDF document text
    • http://files.outsidethebox.nz/uploads/1/3/1/3/131380728/3553091.pdfIn PDF document text
    • http://files.nzkoru.com/uploads/1/3/1/6/131606349/bd4dc2e.pdfIn PDF document text
    • http://files.krististreatery.com/uploads/1/3/1/8/131857782/4863510.pdfIn PDF document text
    • http://files.bullbearkidsbooks.com/uploads/1/3/2/6/132681404/medewesiposade.pdfIn PDF document text
    • http://files.taaonline.org/uploads/1/3/1/8/131856285/c5bed6fa80c566.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/1/0428/1932/2022/files/dopesenakezomavotokunam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7849/2062/files/2843405748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3536/1442/files/tasugolasenitewofuraxomor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vuvuwagel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1740/4573/files/49133996835.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7089/7824/files/24036411534.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8094/1721/files/rumuworimujajomafofut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6193/6285/files/semexir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1775/6062/files/nobasopezeritovu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6583/4658/files/21596708740.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7789/2251/files/wenurodidu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0533/0083/files/90780784084.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8905/8206/files/govidofukumakedogutusudab.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_off00007345.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7345 5180 bytes
SHA-256: 53d16d9cae3f1b9185e61a04846dd95c4ac8551d2e0949dfba22946177b6ff3b
font_01_sfnt_off000084ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84EE 10212 bytes
SHA-256: ab580e337383211631154e7cd79f97f46c16ecd3efc5bb229c144161eb43402a

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