Malicious PDF — malware analysis report

Static analysis result for SHA-256 117e420837721c2e…

MALICIOUS

PDF

39.2 KB Created: 2020-08-11 19:10:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5ca655479e20ce1dc25ed09a5dc76037 SHA-1: 785f0032ad77a646ffeeef1e0ea15269005b1ab3 SHA-256: 117e420837721c2e9da7588dc4f1d9a12355208f0d85d56c9d1cad36c03a14d5
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector at 'https://ttraff.ru/pify?keyword=download+sing+hallelujah+to+the+lord+pdf'. This suggests an attempt to lead the user to a malicious site or download. The ML classifier also strongly indicated maliciousness.

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=download+sing+hallelujah+to+the+lord+pdf In PDF document text
    • http://nazel.allpaps.org/uploads/1/3/1/3/131380213/gapojigirutewedu.pdfIn PDF document text
    • http://files.drawingroom-and-associates.net/uploads/1/3/1/6/131606118/4599092.pdfIn PDF document text
    • http://gatil.henhouseart.co.uk/uploads/1/3/0/9/130969045/8720791.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/1/0434/4843/4840/files/radio_commercial_scripts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6955/4329/files/79713092542.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3646/5559/files/sistema_de_defensa_nacional_del_peru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6280/4136/files/womuvesuzele.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5667/7543/files/ayahuasca_dieta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0301/7373/files/atlanta_criteria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1936/9639/files/shadowing_japanese.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9138/5758/files/12895405761.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5815/0046/files/fofolizokubebewegadega.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0273/9363/files/20323916411.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3166/5562/files/20021608132.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4365/9677/files/addictions_a_banquet_in_the_grave_free.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 3

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_off000056ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56AE 5468 bytes
SHA-256: 1c55f0d9e6e380e373b2f3b03c1bfe09c7f24ac4edb7e29936569403a381d922
font_01_sfnt_off0000695d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x695D 12184 bytes
SHA-256: 30c5782df2d4adb3edfdd1c128555e52bdb9ac4f15f50864de76d5b7344058d7

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