Malicious PDF — malware analysis report

Static analysis result for SHA-256 70fd44e6ab8c391d…

MALICIOUS

PDF

53.5 KB Created: 2020-08-18 23:00:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9f20a029ed9ab97d01cb03bec47f237b SHA-1: 9555a2b4ab754cd54417002e62f089151fab6b76 SHA-256: 70fd44e6ab8c391dc77e7576ef53bfd70b2cd7ea95086bdc14bb66265c32bd5d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous embedded URLs, many of which point to a redirector service (ttraff.cc) disguised as a link farm for various PDF documents. The document body, though heavily obfuscated, contains text related to 'Bleacher Report Summerslam results' and the redirector URL, suggesting a phishing or scam lure. The ML classifier strongly flagged this PDF as malicious, and heuristics indicate it's a redirector designed to lead users 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.cc/pify?keyword=bleacher+report+summerslam+results In PDF document text
    • http://files.assortedartistries.net/uploads/1/3/2/6/132680860/zimetijofew.pdfIn PDF document text
    • http://files.standrewci.com/uploads/1/3/2/6/132680813/garuzenatiwovem.pdfIn PDF document text
    • http://files.glennartfarm.com/uploads/1/3/0/9/130969509/a6982d00549.pdfIn PDF document text
    • http://files.semoswatchallenge.com/uploads/1/3/0/8/130873893/sinopanerajenezeves.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/1/0433/4164/3928/files/publisher_booklet_templates_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/puneson.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8866/7039/files/rabenizu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0921/0529/files/hp_designjet_t2530_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0593/4757/files/human_schistosomiasis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5511/1589/files/89789436275.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1440/5793/files/42732302207.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2639/0946/files/75170959031.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3729/4745/files/14781011475.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xorufolikuvuzinekotawoxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5698/8317/files/cds_exam_syllabus_2020_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0438/7750/files/ritax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9502/4023/files/shala_marathi_book_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2936/4899/files/psychrometric_chart_nptel.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000086af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86AF 4948 bytes
SHA-256: 298330e79c5975e64bc3ec40a784b04e97b5e8da47e1e869d94ec0f51a87bde5
font_01_sfnt_off00009780.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9780 10316 bytes
SHA-256: e2520f5dae1dd2232094f051b2a048a4d9455b2352187d1325b3f6042e367606
font_02_sfnt_off0000baaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBAAF 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f