Malicious PDF — malware analysis report

Static analysis result for SHA-256 28802a193dcf008a…

MALICIOUS

PDF

40.9 KB Created: 2020-08-10 13:12:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3960def9c66e932e647ea1496083c8f0 SHA-1: dc80f2eb442c8c580d7611a17c21942f81d91959 SHA-256: 28802a193dcf008aec074403dd96bba0fa1310a5ca83ddeb71fd2a9ea21cb242
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 domains associated with malicious redirectors or SEO link farms. The primary malicious link identified is https://ttraff.com/pify?keyword=pathfinder+bestiary+1+pawns+pdf, which is flagged as a known malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to trick users into downloading further malicious content. The ML classifier also strongly indicated maliciousness.

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=pathfinder+bestiary+1+pawns+pdf In PDF document text
    • http://files.northridgebands.org/uploads/1/3/1/6/131607565/madavefe.pdfIn PDF document text
    • http://zolepad.mbstrength.com/uploads/1/3/1/3/131398140/7513198.pdfIn PDF document text
    • http://files.lakehomesofnh.com/uploads/1/3/0/7/130739268/7251084.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/1/0431/8111/3506/files/proud_family_tory_lanez_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fexofedome.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8421/0583/files/dukokeravolibotutifofimok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5697/9351/files/mepeni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3983/4780/files/how_to_edit_hosts_file_windows_7.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6103/2598/files/99618653197.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3191/0821/files/cahills_vs_vespers_book_4_download_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8699/5863/files/68705485636.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2848/0157/files/bekukazo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7987/4213/files/jibojoreno.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 5

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_off000061e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61E5 5484 bytes
SHA-256: ce850edf8ada3bd2b9c50a787383547157873d1cb114dc245ee225c8853cfa99
font_01_sfnt_off00007493.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7493 10108 bytes
SHA-256: 4cd6051c66a67640e972421c788c1082755ffcffb6fa534a016867d8b4c9550d

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