Malicious PDF — malware analysis report

Static analysis result for SHA-256 9740944cafc42f86…

MALICIOUS

PDF

45.8 KB Created: 2020-08-16 17:50:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 879d08c11ffe413716df88fbc578ce8d SHA-1: 047d74cec4e1266b06767849e832a073e04de102 SHA-256: 9740944cafc42f861db39b0ac83270bf316226a2726578eeb78c201c2509e930
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains multiple embedded links, with one specifically identified as a malicious redirector pointing to 'https://ttraff.cc/pify?keyword=dependent+prepositions+pdf'. This indicates a likely phishing or malware distribution attempt. The presence of a 'download button' heuristic further supports the idea that the document is designed to trick the user into initiating a download or navigating to a malicious site. No scripts were extracted, limiting the analysis of the payload.

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.cc/pify?keyword=dependent+prepositions+pdf In PDF document text
    • http://jadeliw.northcountyyouthonstage.com/uploads/1/3/1/1/131163540/jonotoranitomasibu.pdfIn PDF document text
    • http://files.beanbagswim.com/uploads/1/3/1/4/131407890/e864f24b.pdfIn PDF document text
    • http://kuxigizeg.centrepointecincinnati.com/uploads/1/3/1/1/131163772/7953899.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/1/0428/9835/8432/files/1741554469.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3316/5986/files/81646288124.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/8881/0918/files/2010_cadillac_srx_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8770/6774/files/lizumibivafumutomuta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3431/1845/files/56286786576.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6883/3436/files/40327712355.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8874/7423/files/k_to_celsius.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7708/4070/files/luvexopunevo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4900/0864/files/63869745864.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8345/4872/files/kawonanolukojaxege.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6182/8001/files/15064120199.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_off00006c4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C4E 4792 bytes
SHA-256: 90b2879313272b7d89b035dd9f0ecfae0321864f2ce8a09fe5f034134fb3bcbc
font_01_sfnt_off00007ca4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CA4 2252 bytes
SHA-256: 4af291ac6c378c6b2d793c4ead027a2e72d4d8c79d9226f528819b991ee21653
font_02_sfnt_off000086e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86E5 10288 bytes
SHA-256: 46f33955858533bf08e9ee7d28b94b439df243c351c91f7054da0c4535a422d3