Malicious PDF — malware analysis report

Static analysis result for SHA-256 52c90e9e349679ae…

MALICIOUS

PDF

46.9 KB Created: 2020-08-12 22:37:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3de9a5d8565f952b0f5f9c3d33648f4a SHA-1: bf8286c2fbacd2cd197a9621bc49e3f403e7e494 SHA-256: 52c90e9e349679ae86388e3fd62e8454f97b02ae4c48f21e4f16ee3bdfd794f4
194 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to a redirector service. The primary malicious link identified is https://ttraff.ru/pify?keyword=ancient+rome+architecture+pdf, which is designed to lead users to further malicious content. The document's structure and the presence of numerous external links suggest a link farm or redirection attack designed to obscure the ultimate destination.

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=ancient+rome+architecture+pdf In PDF document text
    • http://files.artcollectivefrederick.com/uploads/1/3/0/7/130739069/kekitivenufur_tujowisesati_wigojam.pdfIn PDF document text
    • http://tamigos.everyotherthursdaypodcast.com/uploads/1/3/1/3/131383965/3412056.pdfIn PDF document text
    • http://files.mac-italy.com/uploads/1/3/1/8/131871740/kizozox-wenemerageg-bamipeg-wodut.pdfIn PDF document text
    • http://jolev.stjohnlutheran-drake.com/uploads/1/3/2/6/132682883/vupum.pdfIn PDF document text
    • http://files.artedguru.com/uploads/1/3/0/7/130739910/5329969.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/1/0433/7480/5148/files/25923981801.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2919/8998/files/lokusubatijebe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3025/7568/files/paracetamol_poisoning_treatment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/17418425376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8752/7078/files/lesedofamewinadilexepit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0451/0887/files/pojezakeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5003/2549/files/fundamentals_of_accounting_chapter_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1336/6182/files/watanesodew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/judegesuzopo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8207/2732/files/gideduvuzovozo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6159/8616/files/how_to_create_a_discord_server.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6777/6919/files/journal_echourouk.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_off00007b3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B3A 5176 bytes
SHA-256: 4c269cb72a5d1c84023a257d6cad85cd28cc226284eeae34bb5ba8eb3670bb1f
font_01_sfnt_off00008c98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C98 9908 bytes
SHA-256: 5089f8a8ef0892090a19184a13b261365d23e7b1e5262f34e151fff4fe4f5d13

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