Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b9f18ea64a6bc20…

MALICIOUS

PDF

41.7 KB Created: 2020-09-16 12:04:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e86d5f99ac5bb6cdfdc22c48c545375d SHA-1: 79fdb376c3ec1c77593b025d4fd0087fa47fa21f SHA-256: 5b9f18ea64a6bc2072d8b9ad8cc03d1682f2c009d1c3fc3783ba0d67181aa00f
194 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by an ML classifier and contains multiple links to redirector infrastructure. The document body and embedded links suggest a lure for downloading software, specifically mentioning "hd online movies apk download". The presence of numerous external PDF links, many pointing to SEO-optimized URLs, indicates an attempt to distribute potentially harmful content through a link farm. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a phishing or malware distribution attempt.

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.club/pify?keyword=hd+online+movies+apk+download In PDF document text
    • http://dinofew.leandromorgado.com/uploads/1/3/1/4/131454012/dukivut_rabaxamorup_wewaroxowutiwa_rarir.pdfIn PDF document text
    • http://rubilo.agbio-inc.com/uploads/1/3/2/6/132683130/316ed0b4faced.pdfIn PDF document text
    • http://xumiku.healthwisegippsland.com/uploads/1/3/1/4/131453170/3261895.pdfIn PDF document text
    • http://pepom.singletree-emporium.com/uploads/1/3/0/7/130739561/932bf319.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/1/0428/2161/5772/files/al_quran_terjemahan_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9726/0192/files/animation_ppt_templates.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9249/9877/files/51870370760.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5971/4971/files/rowuneguxutobowi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4343/8244/files/bcs_english_book_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1504/4252/files/90725202730.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89573664631.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/4672/5790/files/aparato_reproductor_femenino_anatomia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/7347/0363/files/cars_the_video_game_psp.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5886/9910/files/folding_screen_monkeys_guide.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 8

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_off00006685.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6685 5184 bytes
SHA-256: 8ef4ced3373fdba1f7c77853870d00e76564d9de09ca6a1c2909fa59e1500b6a
font_01_sfnt_off00007828.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7828 9992 bytes
SHA-256: c8244d4b05c03b91edefdced76c1f7ce9f448dc7ef270e5e6476f66384d55f56

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