Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd13630f230cdd21…

MALICIOUS

PDF

42.7 KB Created: 2020-08-11 23:22:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9051ade249a543801a0ee93409a9d88d SHA-1: 78d6dae7d93591f8d54b5047ae0f935df318e8dc SHA-256: fd13630f230cdd212087210f52c22a8ad445b8a5df66c8a61ead45998080ece0
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=bologna+city+map+pdf'. This indicates a phishing or social engineering attempt to redirect the user to malicious infrastructure. The document body, though heavily obfuscated, contains the same URL, reinforcing the malicious intent. The presence of a link farm heuristic further suggests an attempt to manipulate search engine results or distribute malicious links.

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=bologna+city+map+pdf In PDF document text
    • http://files.johntstephan.com/uploads/1/3/0/8/130814226/58ebdc43d2.pdfIn PDF document text
    • http://files.bingedrifting.com/uploads/1/3/1/3/131380583/pawivuzujoxofep_lubakuwiz.pdfIn PDF document text
    • http://jolujo.artworkbyhat.com/uploads/1/3/1/4/131482952/telilu-japopapizikas.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/1/0433/7877/0076/files/50680556141.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5666/8573/files/17345474347.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/1018/9480/files/define_pragmatics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7940/1634/files/no_more_dream_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0722/0635/files/jefejopozugi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3926/8774/files/fundamentals_of_calculus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8610/9086/files/28911914392.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5061/4429/files/article_of_association_and_memorandum_of_association.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6111/6064/files/poda_do_abacateiro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3856/2712/files/vezisileliwerusin.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_off00006083.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6083 5352 bytes
SHA-256: 1fa2d5d10c292a38d9b3578e6495cd252074510cd3106bbb5b6c1b48b5a8c267
font_01_sfnt_off000072b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72B4 14060 bytes
SHA-256: 8b264b84e735472e4ad491fe6bce311008f4df7678b71fa7db54388d2d95bcaf

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