Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b2cace33f49f611…

MALICIOUS

PDF

37.5 KB Created: 2020-08-20 12:29:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9ddedccaf2b4c646398e107a303e83c0 SHA-1: 0dfcbed696344d259be747d4dcb6eefeb4bd1372 SHA-256: 5b2cace33f49f611cfd77d27af714969d3f5f5e833cdab07a32cfe8dcd805387
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many of which point to a redirector infrastructure designed for SEO spam and phishing. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a 'scratch tutorial video', which redirects to a malicious domain. This indicates a phishing attempt to drive traffic to malicious sites.

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=scratch+tutorial+video In PDF document text
    • http://dadaxero.kasrakaviani.com/uploads/1/3/2/6/132681556/raxepusajojavex-lubusukinu.pdfIn PDF document text
    • http://files.islandsforever.com/uploads/1/3/1/4/131453499/vomufizobexasit_karipumutila_soxizadujenojug_vomozi.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/1/0437/9141/7505/files/rozitofi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4603/3818/files/era_paleozoica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9345/1159/files/retosajonusuvufirebowur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8770/7804/files/chaos_theory_management.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7813/0593/files/jupibofusobidogijiwug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6337/7048/files/friends_never_say_goodbay.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3849/8206/files/lirobojuvutizu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9252/3675/files/el_camino_del_artista_completo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8058/9207/files/calculus_math_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1516/6357/files/the_longman_writer.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/1/0437/0500/8293/files/64334489895.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 2

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_off00005772.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5772 5012 bytes
SHA-256: e353d18df50a81b0674b591d73c0d19222d697d345cedcc97de29538766ccf07
font_01_sfnt_off0000686e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x686E 9784 bytes
SHA-256: 7d2659971bc7e8302a37f56d605a5ccf5caebd7a5102e92987597f56acc85026

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