Malicious PDF — malware analysis report

Static analysis result for SHA-256 23909348f72f17d6…

MALICIOUS

PDF

44.0 KB Created: 2020-08-22 07:00:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 992612eff5af5ad9b9475112aaf9d0a3 SHA-1: 35ff0e0d2393faa8b8c4a23205f8b775df539ff5 SHA-256: 23909348f72f17d62417491add74b018527ae63ad07037215b6fa6c6f0e50056
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to what appears to be a link farm designed for SEO manipulation. One critical heuristic identified a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text fragments and URLs consistent with an advance-fee scam, specifically a lottery or prize lure. The primary malicious URL identified is https://ttraff.ru/pify?keyword=rise+of+nations+mods.

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=rise+of+nations+mods In PDF document text
    • http://files.lakefieldvisioncare.com/uploads/1/3/0/7/130775998/2113080.pdfIn PDF document text
    • http://setoro.vipwoodenpens.com/uploads/1/3/1/6/131606755/8031461.pdfIn PDF document text
    • http://digekiw.mtadamshoney.com/uploads/1/3/1/3/131398140/mepini.pdfIn PDF document text
    • http://files.hallielee.com/uploads/1/3/1/4/131453177/lezedezexuzat_saxolisemader.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/1/0435/2458/7672/files/zawanesemi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7113/6154/files/gusafaxevobafasum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/nojarezibujo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9187/0375/files/otherside_beyonce_piano_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/72905654063.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0360/8216/files/b_pharmacy_subjects.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8881/2959/files/digezepexudax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2350/6336/files/blades_in_the_dark_srd.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0990/8637/files/24894264368.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7272/4897/files/cantigas_de_escrnio_e_maldizer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7491/0376/files/29793928458.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 8

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_off00006fa1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FA1 4932 bytes
SHA-256: 33946baa6a108286ab4d199682cc77b73af7fd7d103f1b671ba9d6d5d815d211
font_01_sfnt_off00008057.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8057 10276 bytes
SHA-256: 2d69d5c6b827a0f896f386c3321eedea10a9784da6a62178b911b827c0e28488

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