Malicious PDF — malware analysis report

Static analysis result for SHA-256 f49e051fb846b0dd…

MALICIOUS

PDF

40.8 KB Created: 2020-08-18 16:42:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8556d5af5c6497ef8af7a1cad94c4374 SHA-1: f02ffeb84e41cd784f558d880141e21a9fe563cc SHA-256: f49e051fb846b0dd6c8213022e13c1a38bbcd5625d845e44d859188bcbc5f0da
202 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm heuristic, with numerous links hosted on 'cdn.shopify.com'. The document body, though heavily obfuscated, contains the same malicious URL. The presence of a 'download button' heuristic further supports the lure-based attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=discovery+education+assessment+answers In PDF document text
    • http://jirizi.parent-partner.com/uploads/1/3/1/8/131856372/ralonopafagoxogefono.pdfIn PDF document text
    • http://files.flagstaffsings.org/uploads/1/3/1/4/131453250/0ca79e4ac82e19c.pdfIn PDF document text
    • http://files.plastersurrey.co.uk/uploads/1/3/1/4/131437157/8503486.pdfIn PDF document text
    • http://wofozizof.wagamuffinz.com/uploads/1/3/1/4/131482853/fenojipoxa_gimemirevopelax_javuxunon.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/1/0428/8105/6935/files/tumetutet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6294/3144/files/best_ipad_app_for_annotating_files.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8214/5182/files/zokonawepuvuwozasiba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6246/8516/files/10496834917.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/musigusuwekun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/meragavafeduxilaxopuxaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7975/3109/files/pectoralis_major_stretch.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9003/5366/files/symmetry_shapes_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2462/9411/files/76915692706.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3338/4344/files/atm_reference_model_in_computer_networks.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7278/1477/files/brochure_designs_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1960/6936/files/21495078844.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4660/8794/files/67345175490.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000551c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x551C 5304 bytes
SHA-256: bad5d1c50b174814e47103de3119ab4b993c8478866657461e602c9763b13ac8
font_01_sfnt_off00006725.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6725 15064 bytes
SHA-256: 3262b99dd6dd020f00bbb023af3ab91f2e0324c99abc002827e66f96dc03a34b