Malicious PDF — malware analysis report

Static analysis result for SHA-256 d362c465adf4af3d…

MALICIOUS

PDF

44.3 KB Created: 2020-08-09 03:43:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d26615d47849689f22c078d9f625e1d6 SHA-1: 1d6e1eb36d86e8fee7bb3ed40464742d3575dd8c SHA-256: d362c465adf4af3d19b088f5e710db195a27b02446b8d60e088a34d5bdfec4dc
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector service that is flagged as malicious. The document body and embedded links suggest a lure for free downloads, likely leading to a phishing or malware distribution site. The ML classifier also strongly indicated maliciousness.

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=baseball+saved+us+book+pdf In PDF document text
    • http://tiluje.realfamilycamping.com/uploads/1/3/0/8/130814124/bawatadagabi.pdfIn PDF document text
    • http://files.hmdegroot.com/uploads/1/3/2/3/132302859/kimegakojub.pdfIn PDF document text
    • http://files.stephenhardie.com/uploads/1/3/0/8/130814052/8118573.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/1/0446/7975/7977/files/dragon_age_origins_rogue_specializations.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9471/3244/files/bhagavad_gita_in_english_by_prabhupada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1535/6067/files/luwozavujo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9938/1146/files/advantages_of_multilingualism.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3669/5959/files/comment_fusionner_2_en_un_seul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9717/0847/files/vukomikelugarela.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4677/3660/files/remowatinuvakewup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2042/7157/files/wizaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0386/2440/files/xasesifiselojara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4841/8971/files/metexowituname.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1236/6229/files/hierarchy_of_needs_theory_maslow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1324/2014/files/collateral_management_process.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7331/4715/files/2476282035.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 4

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_off00006f12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F12 5252 bytes
SHA-256: 3820221fec7b0962799fa47aec1ea445e1d2909716535ec3a187bf7e0ba378bf
font_01_sfnt_off00008107.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8107 10272 bytes
SHA-256: 7f9ae1c8d77d82bf4ac5f7d2e3b4db7e6ad087e1e00765e90364a40700a40a9d

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