Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc96b704f08277d0…

MALICIOUS

PDF

49.9 KB Created: 2020-08-25 14:24:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8df0b71a94a1e9807eb6b311e9b954d1 SHA-1: f5e4393ff2db4a0fc35c0794ae3d7f0e7690c8a6 SHA-256: fc96b704f08277d026a1c53cd5a95a2870d559936ea33888abecb6e7b79a785d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains numerous links, including one pointing to a known malicious redirector at `ttraff.com`. The document body, though heavily obfuscated, contains text referencing "Jupyter notebook cheat sheet windows" and the malicious URL, suggesting a lure to trick users into visiting a malicious site. The presence of a link farm further supports the malicious intent of driving traffic to potentially harmful 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.
  • 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=jupyter+notebook+cheat+sheet+windows In PDF document text
    • http://regaf.abundancecreativearts.com/uploads/1/3/0/7/130776779/f38dd5fdcde.pdfIn PDF document text
    • http://files.myscribbleit.com/uploads/1/3/1/3/131379946/c1b30f5b7.pdfIn PDF document text
    • http://files.saintceciliasingers.org/uploads/1/3/1/6/131606208/9500416.pdfIn PDF document text
    • http://files.wildroseworkingbelgians.com/uploads/1/3/0/7/130738892/3724002.pdfIn PDF document text
    • http://files.todpardon.com/uploads/1/3/2/3/132302716/2936229.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/1/0431/3638/5181/files/sejuraren.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1560/2337/files/17983089601.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0398/5570/files/android_9._0_samsung_s9.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6750/6845/files/attendance_allowance_claim_form_address.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4992/7327/files/bbc_english_grammar_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/5611/4337/files/ad_nauseam_mtg_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0466/2886/4165/files/48695284341.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7990/1096/files/certificado_de_origen_tlcan_formato.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6660/6247/files/anemia_ferropenica_oms.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 7

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_off000060fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60FD 5516 bytes
SHA-256: 82231f06cbaa29e6272c0044dfcfe83c414b95c1ae08f3c0138e471c0cce8303
font_01_sfnt_off000073cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73CD 15156 bytes
SHA-256: a0bc089cc37bcade462bdd0ab4fb53c3da3404505077531b35835f50441ad00e
font_02_sfnt_off0000a3d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA3D0 16452 bytes
SHA-256: 2115a0c52e1e54814d5c486278214d6ff31d60a5e9eab287d031ca94d9a981e1

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