Malicious PDF — malware analysis report

Static analysis result for SHA-256 b32ca5db8acbbc30…

MALICIOUS

PDF

42.8 KB Created: 2020-08-22 15:13:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3c3d2c9d6bd0576e4e827d94172a2a04 SHA-1: c1b081dd2a90c4e23f12663947a3c5d5c66ce9a3 SHA-256: b32ca5db8acbbc30845ee51d64842252c2a4e2d7e5b2d491fec89362b2df0100
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body contains text related to 'Bsplayer mac os x free' and includes the malicious URL, suggesting a lure for downloading potentially unwanted or malicious software. The PDF_SEO_LINK_FARM heuristic further indicates the presence of numerous external links, likely for SEO manipulation or to distribute payloads.

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.com/pify?keyword=bsplayer+mac+os+x+free In PDF document text
    • http://files.bhurbanhillapartments.com/uploads/1/3/2/7/132740978/2785935.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/1/0434/0292/0086/files/18714651835.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4590/3774/files/javascript_concatenate_arrays.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/2527/9648/files/tcs_aptitude_test_question_paper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3282/8314/files/77132101149.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4227/5485/files/60807374902.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0409/9740/files/one_fish_two_fish_red_fish_blue_fish_read.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0004/5465/files/panasonic_tv_catalog_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2539/8945/files/allegro_5_manual.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 5

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_off000069cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69CF 5380 bytes
SHA-256: a7e5239d7ca26b5163b91544f072597b57c281e553ba87a4194d78d13faf3d0e
font_01_sfnt_off00007c12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C12 10296 bytes
SHA-256: bf5830102ceca8db7cab60617ae15cdbffa7ec1702b9ae28436f7114706d67d9

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