Malicious PDF — malware analysis report

Static analysis result for SHA-256 9883e69b1f2bdd69…

MALICIOUS

PDF

42.6 KB Created: 2020-08-15 00:40:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cf69aa4ee3c9e69be1ae31b56ce21ad8 SHA-1: 873255d94a214d1292cba0027dc55362acf9318d SHA-256: 9883e69b1f2bdd69c007fa0e58383e505ea0a4710e2fcbce54bedcf44f9ff326
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains text suggesting a lure for a 'sample teacher lesson plan template', indicating a phishing or scam attempt. The presence of a malicious redirector link strongly suggests an attempt to lead the user to a malicious site for further exploitation.

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=sample+teacher+lesson+plan+template In PDF document text
    • http://files.phchastings.org/uploads/1/3/0/9/130969573/b4f516e65e2266.pdfIn PDF document text
    • http://boxes.chapelheightsumceauclaire.com/uploads/1/3/1/3/131379290/sebefoxadej.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/1/0433/8548/7516/files/66542175097.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6706/4991/files/dnd_giant_rat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1189/7504/files/rubemamuvopapus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4505/1797/files/49408902637.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2159/6834/files/coordinate_geometry_notes_for_ssc_cgl.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8658/3710/files/coronally_advanced_flap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0489/5143/files/1_to_1000_numbers_in_english_words_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6142/7867/files/wuvufozetatixipamuwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7759/9383/files/english_speaking_practice_at_home.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6759/6184/files/watermark_powerpoint.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6404/9318/files/xisatuvedepuxoripito.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5503/6054/files/suzabuvikikowifatope.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2526/8889/files/cabeza_de_vaca_la_relacion.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 4

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_off00005fdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FDC 5276 bytes
SHA-256: bbc423d96a17605d7f37d7749b294905352f4fb37ae789fdc15c18c3fe8ff7fe
font_01_sfnt_off000071a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71A2 13960 bytes
SHA-256: d9effef088ceef376e0eef6d370862f9c8fb52767dd6e4dca37f2a51a8d7c136

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