Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe17b75e6b2611e1…

MALICIOUS

PDF

42.2 KB Created: 2020-08-09 17:19:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0ee9394e5284333f337b5015fa2b142e SHA-1: 85ef3631f5173a344a4a060c45c572bdb9b478ec SHA-256: fe17b75e6b2611e128d3330ebe7afd9bba18610da8af4243c24cb919d30715d1
194 Risk Score

Malware Insights

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

The PDF contains embedded links, one of which, 'https://ttraff.com/pify?keyword=python+books+for+beginners+pdf+free+download', is identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Python books for beginners pdf free download', suggesting a lure to trick users into clicking the malicious link. The ML classifier strongly flagged this PDF as malicious.

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=python+books+for+beginners+pdf+free+download In PDF document text
    • http://files.searchaffordablehouses.com/uploads/1/3/0/9/130969938/9356139.pdfIn PDF document text
    • http://files.monicarayscott.com/uploads/1/3/0/8/130813373/munusuvejidita.pdfIn PDF document text
    • http://files.ruthcwilliams.com/uploads/1/3/1/3/131380008/wopuwugumivapupeki.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/1/0429/1428/3686/files/vitirimodoxegajiwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7197/9171/files/bikomiwutazad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7433/8454/files/wajah_bandung_tempo_doeloe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1093/1358/files/46809059852.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4026/8711/files/26729500418.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51108684678.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1937/0659/files/three_days_grace_pain._mp3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8976/5279/files/98317941150.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8992/8099/files/rakubevipexopidob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/niborenegukudokeregus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/3682/3972/files/xapavoludi.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 2

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_off000065fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65FB 5700 bytes
SHA-256: 21a27c8d5bd21363b6b9c42742cf587c6fcccc4af341f512a8c352c336de5222
font_01_sfnt_off0000796f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x796F 10036 bytes
SHA-256: 41db87c9e52694b66988964e1be888193d9a4a430cf316f91bcb99f024ce03dc

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