Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c70c5d1196a3f8c…

MALICIOUS

PDF

40.4 KB Created: 2020-08-23 07:29:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f7f08f8cbc7fb40f6a56136bc918642d SHA-1: 5e064201cd4e7e3bed1b1c20de78e8cfbff0553d SHA-256: 5c70c5d1196a3f8cecadaad36962609fde9b45bcd3dbc0202d2e2108b256ceac
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely used to host phishing content or distribute malware. The document body and heuristics indicate a "free-download phishing" lure, attempting to trick users into clicking the link. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the redirector suggest a malicious intent to lead the user to a compromised site.

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=kdigo+guidelines+pdf In PDF document text
    • http://files.msjacksonsclass.com/uploads/1/3/1/4/131437941/kuwawixifob.pdfIn PDF document text
    • http://lovitavi.sandralamouche.com/uploads/1/3/2/6/132681670/b569b8.pdfIn PDF document text
    • http://files.joyfuljourneydoula.com/uploads/1/3/0/7/130775633/2d1bfec0.pdfIn PDF document text
    • http://gejuwoxe.saclegalprep.com/uploads/1/3/2/7/132712237/buridulof-nofusavuselazi-fetimowas.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/1/0439/4529/6027/files/1377487786.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3006/9927/files/bioreactor_landfill.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7372/3811/files/12861824506.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/5407/5799/files/android_textview_auto_height.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/surorut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9578/5629/files/60463232708.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5648/0935/files/xakowexoguwufop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8115/4198/files/sowibaponepuzigesaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1359/4526/files/4_addends_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1135/8372/files/bts_song_boy_with_luv_mp4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/9363/4727/files/tratamento_aneurisma_cerebral.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8702/6581/files/36075722130.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0892/5600/files/76578860880.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 7

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_off00006223.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6223 4872 bytes
SHA-256: 6303af951615eafc9e9683b00734e47c4fb15052cc678373141e8a11d4db83c7
font_01_sfnt_off000072da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72DA 9876 bytes
SHA-256: e2a6212b1a7b30d2626f0226798d7530d64e31a5a3df08fb95663eb9f5ef4b27

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