Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8382b5f02832c8c…

MALICIOUS

PDF

42.7 KB Created: 2020-08-19 09:41:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c1bdd2719a7c6d16e055be607fe16ba7 SHA-1: 56c3ad66d1429b57088267cf4ecc5947561cc314 SHA-256: f8382b5f02832c8ce824a8c5999f78ab09178698efa070a3e8253a9306acafd2
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One critical heuristic identified a redirector link to 'ttraff.cc', which is known malicious infrastructure. The document body, though heavily obfuscated, also contains the same malicious URL, suggesting the primary intent is to redirect 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=aortic+regurgitation+pathophysiology+pdf In PDF document text
    • http://files.yennang.com/uploads/1/3/1/4/131453823/8108054.pdfIn PDF document text
    • http://begenagel.crestwoodmb.org/uploads/1/3/0/7/130775726/12421e.pdfIn PDF document text
    • http://zotuvu.beachgallery.com/uploads/1/3/1/0/131071278/8358cc8f8e2.pdfIn PDF document text
    • http://buzapifag.quickcatclaims.com/uploads/1/3/2/6/132682076/929289.pdfIn PDF document text
    • http://mawam.artshackwallabadah.com/uploads/1/3/2/3/132303219/sejumisawiri_tumez.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/1/0435/3386/1018/files/caccini_ave_maria_guitar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6022/3397/files/3782054506.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2536/7194/files/addison_disease.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3382/7240/files/trane_air_conditioning_manual_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8804/4447/files/xararanoxubapevusijezej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8484/1124/files/lowaxonosot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0673/0138/files/nifiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2325/4179/files/jezuravipiximawuviw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5556/2398/files/8928768099.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/4866/9079/files/theory_of_alternating_current_machinery_alexander_langsdorf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8032/6051/files/a_level_past_papers_physics.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

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000673e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x673E 5508 bytes
SHA-256: 23d9d8929741d968001a9969f40ac13cd06f259d52a56a6a30b500dde3e7c735
font_01_sfnt_off000079fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79FB 10688 bytes
SHA-256: 2611e1d182f778f5b357c93ab374d848aa8dd7c384fdf8cdd3a4b35886d96ede

Open this report in the interactive analyzer, or submit your own file for analysis.