Malicious PDF — malware analysis report

Static analysis result for SHA-256 117597c4c6a4a012…

MALICIOUS

PDF

33.0 KB Created: 2020-08-09 05:57:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 73b18c1ccceb6d7b0a43fd1fa5b40e25 SHA-1: a9844c19a737ed63cf96c3bcae5f0521c3bf5d7b SHA-256: 117597c4c6a4a0126e934a06da5bb809262fa9410bd9ba71eff0e9200657e60e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to an SEO redirector, indicating a link farm or phishing attempt. The primary malicious URL identified is a redirector that likely leads to further malicious content. The ML classifier strongly indicates maliciousness, and the PDF structure suggests it's designed to exploit users through deceptive links.

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=bibele+ya+xitsonga+pdf In PDF document text
    • http://kevekadem.erinjreifler.com/uploads/1/3/1/4/131437462/3121b2d28501.pdfIn PDF document text
    • http://files.sldreads.com/uploads/1/3/2/7/132740186/pamodopugugaz.pdfIn PDF document text
    • http://files.brentfunkhousermusic.com/uploads/1/3/0/8/130813427/7f80f4db743b28.pdfIn PDF document text
    • http://files.binghamroadschools.com/uploads/1/3/0/7/130739674/1ff9ffef0242ade.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/1/0431/8298/1278/files/sonusibut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4085/0598/files/jedifoxovu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7316/6744/files/12164385979.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6974/4028/files/70297809631.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7331/4715/files/xexopolusuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xovigaza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6014/9910/files/carrier_furnace_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6454/1852/files/67653923923.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2757/0596/files/psychology_of_girl_in_love.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7680/5023/files/71674503235.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: 77thmeridian.com 4 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_off00004338.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4338 5472 bytes
SHA-256: f47c8a3a605ef48b22e04dd930b124f9b235724c6c5ca3ac4b199eade067e390
font_01_sfnt_off00005600.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5600 9744 bytes
SHA-256: b98f9581a539ebdedd91b05fa7c8234f72b86659f0207ebb3a912a87c7078400

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