Malicious PDF — malware analysis report

Static analysis result for SHA-256 3562673deeb5a0eb…

MALICIOUS

PDF

43.0 KB Created: 2020-08-09 08:01:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 90efd2a531551544512806e6b40e5525 SHA-1: 05be58802c381f63baa6b175a889de774225a8d5 SHA-256: 3562673deeb5a0ebe74d815de2ec06f7a00cb1afc7c11fb2466f05a96a4ea861
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.001 Malicious Link

The PDF file contains a link that redirects to a known malicious domain, disguised as a download for "Java programming notes pdf for bca". The PDF also contains a large number of external links, many of which point to Shopify domains, suggesting a link farm for SEO manipulation to attract victims. The primary malicious IOC is the redirector URL.

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=java+programming+notes+pdf+for+bca In PDF document text
    • http://files.hoggiesnetball.com.au/uploads/1/3/0/8/130874633/ad9f57d14d0.pdfIn PDF document text
    • http://wojasa.chynajones.com/uploads/1/3/2/7/132710712/zumikagawewizikasuko.pdfIn PDF document text
    • http://files.pcestaskforce.org/uploads/1/3/2/6/132682882/7c09d49e7e4.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/1/0439/8225/8334/files/46914491279.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8950/7990/files/architectural_perspective_drawing_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8277/6729/files/rodofuwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6808/8742/files/mijefebobewikikelexusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4842/0007/files/kitususifazulomuwisumoxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8140/8420/files/xafumu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4782/8133/files/ap_inter_1st_year_sanskrit_text_book_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3137/8590/files/management_aptitude_test_sample_papers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/31591757642.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1184/1949/files/64987257913.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7570/6788/files/datun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3532/8663/files/bitupodipob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/serananovuja.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_off00006974.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6974 5632 bytes
SHA-256: 08bd4c2dfd3698a0b28699dbc1182e240a183bc045a254683746c46d95da4c43
font_01_sfnt_off00007c8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C8D 9992 bytes
SHA-256: ba9a9211e616d17b1cdb0ab0b3bb545a1facb1ef22d314376f6208f2b3b4b465