Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddc34e19e4376266…

MALICIOUS

PDF

77.6 KB Created: 2020-08-23 17:52:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 24eaddd0d35afc79ff8d8402d2f9bec1 SHA-1: 41d754ea8661757fa182102cf40e855bd839a7a8 SHA-256: ddc34e19e437626669e9c792aa4b40a563da04113ad5a839aa911bec3e20a12d
202 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, a technique often used in SEO link farms to manipulate search engine rankings or distribute malicious content. One of the primary links points to a known malicious redirector, ttraff.ru, which is likely used to obscure the final destination of the attack. The document body, though heavily obfuscated, contains the same URL, reinforcing its malicious intent.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=short+definition+campaign+finance+reform In PDF document text
    • http://files.thefashionablecrafter.com/uploads/1/3/2/6/132695571/1240797.pdfIn PDF document text
    • http://digexof.birminghammodelyachtclub.com/uploads/1/3/0/8/130873825/nasuwisata.pdfIn PDF document text
    • http://files.new-style-trailer.com/uploads/1/3/0/7/130739404/rorajesipovasi.pdfIn PDF document text
    • http://fodeti.nigelgorskiconsulting.co.uk/uploads/1/3/0/7/130775565/7805eb6002.pdfIn PDF document text
    • http://files.beyondthekitchen.net/uploads/1/3/2/7/132741162/lulelupisiloni.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/1/0430/3601/6802/files/29369326769.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/python_svg_to_png.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3568/1180/files/vedoreju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8784/6806/files/4166405017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/64516812613.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2652/0987/files/mezomesaguxomugorinuma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4395/4594/files/chhota_bheem_chhota_bheem_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8462/7616/files/nuromitipumemazemozazav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2089/3864/files/90241054235.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2561/3475/files/97687457585.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0391/7974/files/new_bodo_dj_remix_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8380/0474/files/dj_naives_ft_professor_free_mp_download.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ef08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF08 5460 bytes
SHA-256: ed044a6e4a2c0d8267ebbef64a8aeff6b8f230295408051e1984da1bb7188570
font_01_sfnt_off0001016e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1016E 11148 bytes
SHA-256: 5905722e1180fef5b3ec59254c9809541b03d557a780f9d6f541ec928721a69f