Malicious PDF — malware analysis report

Static analysis result for SHA-256 02c52cfb63cec701…

MALICIOUS

PDF

44.1 KB Created: 2020-08-17 04:32:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9fe40da0c504b4806fe0b61219ea33d7 SHA-1: 0e83b31bfd8c4831bd853e4a13a4558e5e83f40a SHA-256: 02c52cfb63cec70140eaa79c03e67acdf2c11015f86223fac3dca1b9864d909c
234 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded links, many of which point to a redirector service. The ML classifier strongly indicated maliciousness, and the presence of a redirector link suggests an attempt to funnel users to malicious sites or download further payloads. The document body itself contains obfuscated text and URLs, further supporting a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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=medianav+evolution+android+auto In PDF document text
    • http://zoteje.marleysk9kitchen.com/uploads/1/3/1/4/131452942/nopikexadogodagoz.pdfIn PDF document text
    • http://files.nemarkayaks.com/uploads/1/3/0/8/130873927/987a2f856e9.pdfIn PDF document text
    • http://wexuxubis.alquranmke.org/uploads/1/3/0/7/130740514/1043815.pdfIn PDF document text
    • http://suxas.brockportjunioreagles.com/uploads/1/3/1/4/131438216/4491076.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/1/0436/1509/2894/files/curl_send_post.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6126/3001/files/personal_bible_study_methods.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5746/9845/files/report_lost_bpi_atm_card.pdfIn macro / runtime command snippet
    • https://cdn.shopify.com/s/files/1/0434/1425/7820/files/16457889192.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xekugoxozeritazol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8014/7359/files/venoxawimotebikafabijaned.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2170/3067/files/24565641444.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6589/2264/files/7606463259.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0337/7824/files/tugozuxedetavijoxelivifil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3932/6365/files/66154139044.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3619/6507/files/79760989402.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1564/3031/files/69638230447.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7514/0761/files/elementary_probability_theory.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
    • https://cdn.shopify.com/s/files/1/0436/61In macro / runtime command snippet
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007085.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7085 4704 bytes
SHA-256: 8edcd22ed955c76e18b41d842827e5caac67b3b0bc6962c43f8f1b9d53a703ba
font_01_sfnt_off0000809d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x809D 10088 bytes
SHA-256: 085007e9954c40cf99485787ec633e0ca8ad92d0106ef7e9aa18ba6957461af3