Malicious PDF — malware analysis report

Static analysis result for SHA-256 712bbfdf7c23e980…

MALICIOUS

PDF

53.5 KB Created: 2020-08-15 00:18:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 42eeae0b9274a26287dddbdef5a53648 SHA-1: cb439fdda9238c515bd55b78ee2f7d1e3bf73a88 SHA-256: 712bbfdf7c23e980dbdf4ed4da14429a3b42142b71bb42bbfe28c31fa1f197d6
162 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by an ML classifier and contains numerous embedded links. One primary link, 'https://ttraff.ru/pify?keyword=epanet+software++for+windows+10', is identified as a malicious redirector, suggesting an attempt to lead users to harmful content. The document body, though partially obfuscated, also contains this URL and other links, indicating a link farm strategy to distribute malicious 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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=epanet+software++for+windows+10 In PDF document text
    • http://files.keepinitreelchartersunlimited.com/uploads/1/3/2/8/132814996/makos.pdfIn PDF document text
    • http://files.mountainteachings.com/uploads/1/3/2/8/132815342/zivejex_vegaxujikarara_nadutoz.pdfIn PDF document text
    • http://farilikim.katetobin.com/uploads/1/3/1/0/131071164/8867709.pdfIn PDF document text
    • http://files.justbcosmetics.com/uploads/1/3/1/4/131483955/mofalomuwurevo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8252/0478/files/calculations_in_chemistry_dahm_2nd_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9892/2392/files/70133549832.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1510/0826/files/jefevuba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1682/2679/files/xatajerulox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9432/6939/files/fujid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5747/8809/files/limobosebivogolixebebex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1551/1968/files/43642681050.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6128/8868/files/pandoc_markdown_to_code_highlighting.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4391/2856/files/vawukakuzakipisesu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9868/6111/files/43331236930.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3665/5259/files/90204139933.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4925/5061/files/5172332569.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
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007896.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7896 5244 bytes
SHA-256: a065be931404d9b3ea8769b5266220b54384aca80da7c6790c9d413746e5b8e2
font_01_sfnt_off00008a81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A81 8996 bytes
SHA-256: 9d260e5ef05587e3bbe33ff803d938c2ae4f6b570f66e22bf9186ae2956b11f0
font_02_sfnt_off0000a380.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA380 10164 bytes
SHA-256: a262b39cb1c68d10e850b42662f06e1e5f6a3204a9862ab8851dfec73e674162

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