Malicious PDF — malware analysis report

Static analysis result for SHA-256 9420aa88efab7c2e…

MALICIOUS

PDF

40.9 KB Created: 2020-08-01 19:23:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 93e8e536da63c1be61b866e81309ecba SHA-1: 7d0450d6208ff055277264eecd8b5a5257447c77 SHA-256: 9420aa88efab7c2eaedfb7a94c0c13de9b12a7d5dff0bb9718bce9c7bef06df9
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru', which is associated with a lure to 'buy roblox exploits'. It also exhibits a PDF link farm heuristic, embedding numerous external PDF links, with the first being to a Shopify domain. The document body, though heavily corrupted, contains the same malicious URL and a call-to-action phrase, suggesting a phishing or scam attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=buy+roblox+exploits In PDF document text
    • http://files.destinationdancesb.com/uploads/1/3/1/4/131453823/ribizozom_marekedukatenuj_dujeg.pdfIn PDF document text
    • http://files.premadesignsonline.com/uploads/1/3/2/7/132740723/05207.pdfIn PDF document text
    • http://files.agilitydreammaker.com/uploads/1/3/2/6/132683001/vavanoninaduve_goxomatosis.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/1/0430/0577/1929/files/patalozugopufobasitu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7652/7014/files/jizilopedajubezorogijopad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1230/9670/files/33368430652.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9988/9569/files/9115520121.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1171/8820/files/xopixijopitujuta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/8904/0294/files/play_prodigy_math_game.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4830/4797/files/38837583944.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6325/4944/files/39591713500.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2883/0625/files/tamusagubi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3057/6278/files/watipasajaxewusute.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3240/4380/files/70290517985.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_off00005a67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A67 4960 bytes
SHA-256: 13f88c2fbdd3bfc496c815b8c64b6d000beb9ebaa76868e4c1ebe037fc8a2711
font_01_sfnt_off00006b63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B63 13524 bytes
SHA-256: f3b06dae3d374d8bd873e41fd3f363d8ec03286c158e5428d95c00ee99693534

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