Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa25bcf7c3571d97…

MALICIOUS

PDF

44.0 KB Created: 2020-08-12 17:58:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 43d89b3ec79bea722c39619f7ad99ea8 SHA-1: c06154eacdf3384a60f120069c95153f51b8da64 SHA-256: fa25bcf7c3571d978669dac45fa51527f9bd40d294ff1f87beda7b4c7fdfa44d
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 'ttraff.ru'. The document body, though heavily obfuscated, contains this URL and other benign-looking Shopify URLs, suggesting a link farm or redirection tactic. The primary malicious URL is 'https://ttraff.ru/pify?keyword=causes+of+arusha+declaration+of+1967+pdf', which is likely intended to lead the user to a malicious site.

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=causes+of+arusha+declaration+of+1967+pdf In PDF document text
    • http://gowatanel.dceverestdeca.com/uploads/1/3/0/7/130776525/9cd354194c.pdfIn PDF document text
    • http://files.ecparksandrec.com/uploads/1/3/0/7/130739937/zuwataxubewomix_rokurajo.pdfIn PDF document text
    • http://lerif.nishati-healer.org/uploads/1/3/2/6/132682883/gabokani_vevodik_tivapifonof.pdfIn PDF document text
    • http://files.seatoskyallbritishrally.com/uploads/1/3/0/9/130969146/486625.pdfIn PDF document text
    • http://files.victoriawindowwashing.ca/uploads/1/3/0/8/130814329/nozolupik_guromogi_dutume.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/1/0429/7929/5385/files/hamstrings_strengthening_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5172/7513/files/online_reservation_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6195/2155/files/29078544768.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9114/0512/files/xbox_one_windows_7_driver.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8278/4673/files/days_of_the_week_english_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1670/5432/files/fatudevawajisi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1011/2163/files/funeral_invitation_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5671/6186/files/24934645698.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5480/7717/files/79315781537.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1682/2679/files/48321942823.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9432/4888/files/88746029941.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 7

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_off00006d38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D38 5592 bytes
SHA-256: 0b2a48803a7bef3976f01dd4d4f2ec8349bbd4d6dc64987ffc4fe59124337be9
font_01_sfnt_off00008035.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8035 10088 bytes
SHA-256: a4a3d34b9a6aafe3f90ad889d9ea0b5b8f6ab19685ac561d551401dda951b765

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