Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b2535e65d1eea3f…

MALICIOUS

PDF

43.7 KB Created: 2020-08-09 15:36:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b6f4158f2628275615bfcb45f6bb3e1d SHA-1: a058ad128b840c1c921f3bc5fb1c673a4bbe64b2 SHA-256: 1b2535e65d1eea3fb29e3d224a19e7b7cbba65d3c12ef009ea1813a392697382
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is https://ttraff.cc/pify?keyword=carte+de+visite+format+pdf. The document body, though heavily obfuscated, contains references to 'carte de visite format pdf' and the authoring application 'wkhtmltopdf', suggesting a lure to download further content. No scripts were extracted from this sample.

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=carte+de+visite+format+pdf In PDF document text
    • http://jekeli.cleftpupbrigade.org/uploads/1/3/1/3/131379578/df37e9c4e2.pdfIn PDF document text
    • http://files.shareourlove2017.ca/uploads/1/3/0/8/130874125/4999351.pdfIn PDF document text
    • http://files.trentonbadillophotography.com/uploads/1/3/1/4/131406739/6706247.pdfIn PDF document text
    • http://momibenoj.christineshanks.com/uploads/1/3/2/7/132712207/kinosifide_pubewiv.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/1/0438/6465/3984/files/50056353248.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3126/3394/files/34720275234.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5851/1522/files/79525766416.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5185/0647/files/annotate_ipad_dropbox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/0187/6377/files/97_nissan_altima.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3952/1958/files/88716302979.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3193/6674/files/84610333289.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2014/7095/files/najojowajesuwoje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2398/3001/files/16295005439.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3343/6066/files/98579094108.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 3

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_off000068f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68F9 5120 bytes
SHA-256: 60799d66c2bf9b39fc583d7842232b8a016f57586de8fc05e6bfda7e7b1ad8d6
font_01_sfnt_off00007a53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A53 12084 bytes
SHA-256: 8b4145238a6667d5c76b3ed263933d814213867def611de580ca0ebb47eb4d40

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