Malicious PDF — malware analysis report

Static analysis result for SHA-256 14719e426b7161a5…

MALICIOUS

PDF

37.1 KB Created: 2020-08-10 07:25:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c3fba77315d92f88550475704443a1aa SHA-1: 8a9d171e85db40ed6a3d89bf07f6bbe1dbfde69e SHA-256: 14719e426b7161a5376a0dfa5889dc820db9d065fd6cb287ebb38197ef8aaae9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links designed to appear as legitimate downloads, but they ultimately redirect to malicious infrastructure. The primary redirector URL is https://ttraff.ru/pify?keyword=indonesian+to+english+dictionary+pdf, which is flagged as malicious. This indicates a phishing or scam attempt leveraging SEO tactics to distribute malicious content.

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=indonesian+to+english+dictionary+pdf In PDF document text
    • http://files.thebenjaminjohnstephensfoundation.org/uploads/1/3/1/8/131856956/mudebativojivibovu.pdfIn PDF document text
    • http://pabuduge.classicalcollege.com/uploads/1/3/1/0/131069839/c99727c.pdfIn PDF document text
    • http://files.davidemariano.com/uploads/1/3/2/6/132681694/12d8564.pdfIn PDF document text
    • http://butit.ivocc.org/uploads/1/3/0/8/130874431/9f720f29e37d5.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/1/0430/9866/9220/files/41562421232.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4208/5783/files/10821819107.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5787/2033/files/beneficios_del_pinzamiento_tardio_del_cordon_umbilical.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6409/8970/files/zumofuza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5759/4011/files/39553964508.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6678/3904/files/grupo_de_antibioticos_betalactamicos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5272/0543/files/how_to_create_discord_server.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/87967576867.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4021/1105/files/54654237397.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3932/6365/files/alagappan_medicine_book_pdf_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6874/4087/files/kalopoditakaku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1972/1115/files/chiquinquir_c3_a1_delgado.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
🗂 Part of campaign: davidemariano.com 3 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005229.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5229 5456 bytes
SHA-256: 2ae08c573dbf14529f1c8b6cefcec551dff17ac2dfb2456cd724051f006b546f
font_01_sfnt_off000064bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64BD 10064 bytes
SHA-256: 17ade4feac412b5577569d76bbd6f033e68ca152d6b8f5ecdfe8750dff61ecac