Malicious PDF — malware analysis report

Static analysis result for SHA-256 b32c9ba66dc0d02b…

MALICIOUS

PDF

49.0 KB Created: 2020-08-10 03:34:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2448edfc2c1615ebcf60f1d9bbc5f38d SHA-1: e6f060fa74c320516bfb4602713bafaf37ff6467 SHA-256: b32c9ba66dc0d02b5f384873d177ceefca71bae696de58637bed9503f2ae6828
214 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to benign Shopify URLs, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Energias renovables pdf libro' and includes the malicious URL, suggesting a lure. The presence of a callback phishing lure heuristic further supports the assessment that this document is designed to trick the user into interacting with malicious infrastructure.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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=energias+renovables+pdf+libro In PDF document text
    • http://fodogobux.lightingshowroommullingar.com/uploads/1/3/1/4/131453674/fbdf20e3.pdfIn PDF document text
    • http://files.rockymtnblueticks.com/uploads/1/3/0/9/130969313/pamugup-wonafiga.pdfIn PDF document text
    • http://metogudi.memphisescaperooms.com/uploads/1/3/2/6/132681579/f5286272bee7809.pdfIn PDF document text
    • http://pubixe.lynnpetersongallery.com/uploads/1/3/2/6/132682883/zivaforu-budulo-mivipatoka.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/1/0432/4065/2960/files/esl_asking_questions_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1961/5901/files/lezilibonaxivovoga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7316/6757/files/pudatujuxudigixexofalo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9372/1255/files/37226914005.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5802/6903/files/geragozevuvolobogubemu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1802/5122/files/bach_minuet_in_g_major_bwv_anh_114_piano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3536/8346/files/50051006359.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0346/9221/files/jeniviwojar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2966/6724/files/bozemerabodekifojibuvev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2894/5815/files/49189548690.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1834/6915/files/atmel_sam3x8e.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nuxekenosagulowagegur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2563/6248/files/23186026526.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9605/4690/files/realtor_home_buyer_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0328/1571/files/discord_markdown_text.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000079fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79FB 5368 bytes
SHA-256: cefef2aee45917253d3d2ed64a4604b42b3bf74cabf5163a47af34c9f2ed69e2
font_01_sfnt_off00008c50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C50 13444 bytes
SHA-256: 4a7d4b4303c12b2fe456003c72181057de1a7dd95be13cb72e28e0eaeb1ce606