Malicious PDF — malware analysis report

Static analysis result for SHA-256 e017df166622a31b…

MALICIOUS

PDF

43.6 KB Created: 2020-08-15 00:45:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a608e699e2ddaa33a71d1e47a26e7800 SHA-1: 8a20384e6ea8e96cb1b00cb8d9c46252cfbf9cc8 SHA-256: e017df166622a31ba6f72b3688ef031f70e14f9fac883c23fb8ad0f672ac4265
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics. The embedded URL https://ttraff.ru/pify?keyword=acet+application+forms is a primary indicator of this malicious redirection. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains references to application forms and the URLs suggest a pattern of linking to various PDF files, likely to obscure the malicious intent.

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=acet+application+forms In PDF document text
    • http://nujilore.deloreanguide.com/uploads/1/3/1/8/131856318/xivumazalifave.pdfIn PDF document text
    • http://jegadapar.barrystaxidermy.net/uploads/1/3/0/9/130968984/vimadub-nezuroke-wumure.pdfIn PDF document text
    • http://files.ceramics.se/uploads/1/3/1/3/131378852/9611f902.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/1/0439/1036/5339/files/pirates_of_caribbean_theme_piano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1045/7753/files/raxuporixezuxogotifus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9471/3244/files/11771649841.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9201/7305/files/61547318866.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0645/1094/files/sarawak_government_almanac_2020_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0004/5465/files/brecon_beacons_os_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9065/6921/files/25051216221.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3724/5086/files/27783734462.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/6854/3396/files/monthly_current_affairs_in_english_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9055/8620/files/61486171709.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1497/8718/files/livro_atkins_fisico_quimica.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 3

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_off0000620d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x620D 5152 bytes
SHA-256: eac540c5680c0b111679f5d38c9f470f0c069a66a3dcec26961ffaf32b3e6903
font_01_sfnt_off00007371.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7371 14772 bytes
SHA-256: 37e50d6c0c3a88159701fe01dd30492ed0a10003ff226ebfd108e4e2011ec374

Open this report in the interactive analyzer, or submit your own file for analysis.