Malicious PDF — malware analysis report

Static analysis result for SHA-256 c216c376c7a25ec6…

MALICIOUS

PDF

41.3 KB Created: 2020-08-04 17:46:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 39790956abe2bfc2f55f57ac5f32d515 SHA-1: d1d3165dd18574195d5b8249e91f823496572c1e SHA-256: c216c376c7a25ec6e1f01a15c99584619e8068176880fa54f748beb2630337ab
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised as a download for 'Harry Potter and the Chamber of Secrets cast pdf'. The document body is heavily obfuscated but contains the same lure text and URLs. The ML classifier strongly indicates maliciousness. The primary attack vector appears to be social engineering via a deceptive link within the PDF.

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.com/pify?keyword=harry+potter+and+the+chamber+of+secrets+cast+pdf In PDF document text
    • http://files.finding-solace.com/uploads/1/3/1/6/131637814/8153693.pdfIn PDF document text
    • http://sexiwo.newyorkvideoproductions.com/uploads/1/3/1/1/131164239/c363c660.pdfIn PDF document text
    • http://wuwude.atlanticintegrated.com/uploads/1/3/1/4/131438142/waruzivadu-jigusizisumij-zusekased.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/1/0433/0687/7080/files/67264452348.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4565/0586/files/61695160092.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3606/5438/files/lifobifibigotimab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1965/7628/files/bumabudufufiwovopuvef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5906/9599/files/lixufidowejofipu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6806/2872/files/jukapulejemobamalux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7971/9330/files/faridabad_master_plan_2020_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/boxufodewodafagefusitufaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4634/6657/files/xitas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5601/3205/files/xofidekaguwomipoborifo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0741/7253/files/24656576879.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8678/2371/files/12704903461.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 4

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_off00006248.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6248 5564 bytes
SHA-256: 188bad19091ee21c6c2efe063d6d5cc72a2ae5f8888f24adafbefdafc7219d73
font_01_sfnt_off0000750d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x750D 10188 bytes
SHA-256: 4bad53be58594039a716f96e92fd4cc1bd7ffc748700389196b585a28329d7ec

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