Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f469aa94badd56e…

MALICIOUS

PDF

45.6 KB Created: 2020-08-20 01:26:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3963089683e5a2fe72de826d1e777c58 SHA-1: 3b47f0dc2be31819de5d3e5fbb1250c0620d8654 SHA-256: 4f469aa94badd56efb9f5b9f4f4064c22c3e5b9da8bc4d8d15d2eadbc82338db
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is https://ttraff.com/pify?keyword=nct+127+cherry+bomb+english. The document body, though heavily obfuscated, also contains this URL, suggesting it is the intended lure. The presence of many other Shopify links indicates a potential link farm or SEO poisoning attempt to mask the malicious destination.

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=nct+127+cherry+bomb+english In PDF document text
    • http://files.cloudhauz.com/uploads/1/3/2/8/132815752/wajerivege.pdfIn PDF document text
    • http://files.footprintspodiatry.co.nz/uploads/1/3/0/7/130740130/puginojavab.pdfIn PDF document text
    • http://files.lesdamesdc.org/uploads/1/3/0/7/130775753/putibosumovajim.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9941/3910/files/76348485421.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5962/4606/files/96235910218.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1102/2756/files/60194266101.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4300/4322/files/42514645883.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/9995/8939/files/magic_item_table.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4988/6620/files/xaseketamekixusupawuja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6945/7063/files/88544224709.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9889/7574/files/herbal_encyclopedia_with_pictures.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8580/7269/files/49828614234.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 1

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000573f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x573F 4128 bytes
SHA-256: 1fe40d71df03a0562227b4e613a0f305e1880501a702481bc3c59c18f862c04d
font_01_sfnt_off000065d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65D9 5268 bytes
SHA-256: aceee53e8c69c289c6a8d053355e9d8cf3d890b708d5b77a5b73456f08ec6568
font_02_sfnt_off000077ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77AC 9972 bytes
SHA-256: b742f3949315447bdc531cea1977761f401097dcace895f663a59ba779d669df
font_03_sfnt_off000099e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99E2 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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