Malicious PDF — malware analysis report

Static analysis result for SHA-256 2489201ff45c332d…

MALICIOUS

PDF

46.2 KB Created: 2020-08-07 08:41:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 17c026c5be4e0e3ad904cabe3f4455e0 SHA-1: ac6a5e5c7b0ade6991e2b36b71431d8b8b875c1d SHA-256: 2489201ff45c332d65fe4742c7a396eafd24302835ee4e84814ddd493ec2670b
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external PDFs, with the primary link directing to a known malicious redirector. The document body, though obfuscated, contains text related to a survey report, suggesting a lure to entice users to click the malicious link. The ML classifier strongly supports the malicious verdict.

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=informe+de+levantamiento+topografico+con+estacion+total+pdf In PDF document text
    • http://files.diasporainstitute.com/uploads/1/3/1/3/131398094/jupalebosefipupep.pdfIn PDF document text
    • http://files.cranmog.org/uploads/1/3/2/6/132682295/9735593.pdfIn PDF document text
    • http://files.fumcrutherfordton.org/uploads/1/3/1/3/131379296/winoxavimukisanoki.pdfIn PDF document text
    • http://files.uuchurchofthelakes.org/uploads/1/3/2/6/132682852/xatojubux-jibagi-logida-dunizudebip.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/1/0430/3467/3305/files/gabalexuwuxigusekoketakap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1760/1181/files/gewupefepovopukebowok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2756/9576/files/veloti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0083/9842/files/95028058312.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4815/7859/files/95387816422.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2621/8134/files/vajemajolekuzabazeremovu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3831/9527/files/pirut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2496/3990/files/11th_biology_book_maharashtra_board.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4406/0839/files/mivenoraripomafizaxufa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1249/7312/files/56856581747.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_off00007272.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7272 5472 bytes
SHA-256: 1f2181a259b8c72a2469d05cdad2f14d6c0cbd97d6fa1edf431cee30d470a02a
font_01_sfnt_off00008506.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8506 11468 bytes
SHA-256: 9bddd884b1119658678faffa351521db126403b889a77e52bdbd8942e3911a73

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