Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d9a76552cfd7127…

MALICIOUS

PDF

42.2 KB Created: 2020-08-06 21:12:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 31f2ec5d759b8ea75712c0b875600c47 SHA-1: 06496959defab628429b24aaaa7de5440bc69485 SHA-256: 5d9a76552cfd712789a306d783aa04b3d8c43c86b4d6450c641984f4f60f379f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many of which point to a redirector service (ttraff.cc) that is known to host malicious content. The document body, though heavily obfuscated, contains the URL https://ttraff.cc/pify?keyword=acoustic+guitar+chords+pdf+download, suggesting a phishing lure for a fake download. The presence of a large number of external PDF links, including those hosted on Shopify, indicates a link farm designed to attract traffic and potentially mask malicious activity.

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=acoustic+guitar+chords+pdf+download In PDF document text
    • http://files.welldoneexperience.com/uploads/1/3/1/3/131398184/kifepaba-pamakutajosak-vizizaruv-lojowiwolitifik.pdfIn PDF document text
    • http://files.cristinaliomakeup.com/uploads/1/3/1/3/131378975/popovowugofu.pdfIn PDF document text
    • http://files.antoniocoach.com/uploads/1/3/2/6/132681316/85b91a4acc4b7c3.pdfIn PDF document text
    • http://files.northwestcampingresources.com/uploads/1/3/1/1/131164132/tivotijegikugasosuk.pdfIn PDF document text
    • http://files.themakeupguy.net/uploads/1/3/1/6/131637656/8812074.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/1/0428/8957/6601/files/90299438323.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6976/7842/files/19639584665.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5031/1579/files/zoxefegevadovix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2170/3067/files/ziwofujawasawigurepo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4160/2208/files/38018097361.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8312/1319/files/que_es_un_acronimo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5689/0013/files/20589963521.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4994/3202/files/zitenomekadulobiwisavib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2858/4347/files/75556202338.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4131/7276/files/dixofawasamarugakuviwobef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0254/3778/files/wogikilaxoguputufagogufo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6598/3655/files/rovifama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4329/9234/files/xerukixumukekatomakig.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_off00006528.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6528 5496 bytes
SHA-256: 18c34392aadd53f3811916c54c99595b663f531e9f8e265a1592917210663bd5
font_01_sfnt_off000077ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77EA 10480 bytes
SHA-256: eb192708af57df62d123945552cb00f57cc1b2f8da7a049d8969c047ebb90d3c