Malicious PDF — malware analysis report

Static analysis result for SHA-256 76ff28fbc07017aa…

MALICIOUS

PDF

45.4 KB Created: 2020-08-13 23:26:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4f4f5976f5578106966c23b49667732f SHA-1: 36c15b4913f7b50f599b2ca5c7872ac9c8fa8d54 SHA-256: 76ff28fbc07017aad400d2f625b22b6c9f31b7c8f30ab11993c5583af2d00caa
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service known for malicious activity. The document body and heuristics indicate a lure for free downloads, likely leading to phishing or malware. While no scripts were directly extracted, the PDF structure and embedded links strongly suggest a malicious intent to redirect users to harmful content.

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=machine+movie+background+piano+music In PDF document text
    • http://files.mariecharpentier.net/uploads/1/3/1/4/131483019/batipaxadas.pdfIn PDF document text
    • http://files.originalsexyslave.com/uploads/1/3/0/9/130969004/ca2abe.pdfIn PDF document text
    • http://files.asliceofpierolla.com/uploads/1/3/1/3/131379552/vofizuwe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6939/1527/files/safoxuginexuvunifikopowi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7818/0257/files/webuwutamebawetitafam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1810/0637/files/english_writing_skills_in_bangla.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5666/8573/files/44597162799.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6576/8096/files/gemapopadek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2562/9335/files/83909935423.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0569/7438/files/mavurapusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5117/9416/files/vogomisugobawoponurefas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2508/8168/files/mizasunezitebaxutivabali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8669/9925/files/kawijudominaloxoxofada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2878/1973/files/91322594655.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/livoxigugefeguvon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8068/6495/files/sulitexisepinubotixaxikaz.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006556.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6556 5528 bytes
SHA-256: acf47524ff68c6334a0801c589f5768478a502707f80e30317230f621ad179df
font_01_sfnt_off000077df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77DF 10128 bytes
SHA-256: 831bdf831bd85083390d9d5913497a7180b839f8069c36e94188569b03c654fc
font_02_sfnt_off00009a93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A93 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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