Malicious PDF — malware analysis report

Static analysis result for SHA-256 510bea9673e6b327…

MALICIOUS

PDF

46.9 KB Created: 2020-08-08 06:30:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 52aa7669e118d7e320fd127d07032990 SHA-1: dba8bb31ff585a22d07b1225c9bd8c116febabfc SHA-256: 510bea9673e6b327c24cb365e7d63fee0ac8b220bd08b0abb40a150446965646
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 Command and Scripting Interpreter: PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=libro+sagrado+del+budismo+pdf'. This indicates the document's primary purpose is to trick users into visiting a malicious site. The PDF also contains a large number of external PDF links, many of which are hosted on Shopify, suggesting a link farm or SEO poisoning tactic to distribute the malicious content. No scripts were extracted from this sample.

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.cc/pify?keyword=libro+sagrado+del+budismo+pdf In PDF document text
    • http://files.stephencoetzee.co.uk/uploads/1/3/1/8/131858661/jisonavuzop-jozozofe-kavevarawu.pdfIn PDF document text
    • http://bigane.spectordance.org/uploads/1/3/2/8/132816202/zokim-ritivaj-sowomanis-sikiti.pdfIn PDF document text
    • http://xodarega.andyfelt.com/uploads/1/3/0/9/130969204/pexonudumof_zaterudeguvorat.pdfIn PDF document text
    • http://files.nvhealthandfitness.co.uk/uploads/1/3/1/3/131382243/3cb8582f1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2991/4012/files/ordinal_numbers_1_10_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6910/3528/files/87240146832.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/division_del_abdomen_en_9_cuadrantes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2514/5760/files/vawovimukojagulav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8264/5665/files/guzavevimomopa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7201/1931/files/82651580235.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jokopewizemaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6635/2025/files/xidatufexo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jeravutudab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2817/5255/files/82131854284.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9114/0512/files/century_gothic_google_font.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6263/1326/files/business_plan_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0118/4417/files/86027980712.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B22 5444 bytes
SHA-256: 770eb4af81d695e8d1b61ccb443254c7877a6fdda48916a822e5fd1edb961b4e
font_01_sfnt_off00007d8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D8E 10904 bytes
SHA-256: 0f2887c10ba81af5420ab5041465c893a3f3ab60298bb7982a41abb373a65cb8
font_02_sfnt_off0000a16a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA16A 2836 bytes
SHA-256: ce5219a0b34dd73440115bd4f4394989596e9f9acb8ba35e91d6d1f0b610e27b