Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd48ff093ef4eb3a…

MALICIOUS

PDF

84.1 KB Created: 2020-07-31 09:11:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 650707f8ca68776f4c601c3a8efa8bf7 SHA-1: 219ca3c8393aa2ae422becea0c998a6614584f34 SHA-256: dd48ff093ef4eb3acec95c94bb7ee461cf5c3aa09cfc8c350f0da5a29376bcbc
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 redirector service (ttraff.ru). This indicates a link farm strategy, commonly used to obscure the final malicious destination or to distribute malware. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, a tool sometimes used to create malicious PDFs.

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.ru/pify?keyword=functions+of+wto+pdf In PDF document text
    • http://files.peterschooltasakou.com/uploads/1/3/0/8/130874435/fumefiruvepurak.pdfIn PDF document text
    • http://files.orangehistory.org/uploads/1/3/1/3/131380998/6a7d3c8e67aa6.pdfIn PDF document text
    • http://files.vcjcostumes.com/uploads/1/3/1/0/131070146/6891419.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/1/0430/1537/2949/files/paluno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/kuwomeda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3018/4098/files/jubarunufomajawipenoxunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0342/8510/files/kukemisupuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7899/9446/files/vixudekiregakiropas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5847/0816/files/didereku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7908/9824/files/lexokimoruniwegi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5735/6710/files/73737441276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2356/3925/files/98025975840.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3989/1357/files/zunudizuxemikojolanosinal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5310/4790/files/56434057160.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6515/6508/files/pebiwikajituf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4244/6231/files/jiximenagisim.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 8

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_off00010f3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F3F 4624 bytes
SHA-256: d3c8f8b04eec4edf0ec584daeb37bace163e01a930596c403670a70dab30facb
font_01_sfnt_off00011f14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F14 10604 bytes
SHA-256: 873a54877e2e3f9552936e410913e5851acdee81a1adade72a1da46d70370dbe

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