Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b719adacb090e08…

MALICIOUS

PDF

46.4 KB Created: 2020-08-20 00:01:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 36e175385837ae1e6857eff30db9e921 SHA-1: 940ff05413341443b44b5e0292222524e799dea2 SHA-256: 0b719adacb090e08fd31d95b2d769a538d2c52d4296ebaa17c54dbf42f4c334b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with a critical heuristic firing indicating it points to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that matches the redirector found in the heuristics. This suggests the PDF is designed to lead users to malicious sites, likely for phishing or to download further malware.

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=global+reporting+initiative+g4+sustainability+reporting+guidelines In PDF document text
    • http://files.institutionalamez.org/uploads/1/3/1/0/131070207/luvavafa.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/1/0433/6559/7342/files/lasukesa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9300/7272/files/lowerebejavofiwojojuse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9515/5105/files/25616363493.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4007/2092/files/88737191897.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/31052941417.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7661/6341/files/41854743071.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0813/1233/files/kuvadufivorarizal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4188/0224/files/quimica_inorganica_resumo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2702/8375/files/36493847.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3710/6087/files/90858744227.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2351/6323/files/fuerteventura_holiday_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0783/5292/files/bookworm_adventures_3_free_full_version.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4664/8473/files/crack_ielts_in_a_flash_reading.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 2

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_off00007605.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7605 5548 bytes
SHA-256: 1464c1c3afaa9300d39b0726aaeb7afff89a13d566b4c3c813828d52460a5c02
font_01_sfnt_off00008900.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8900 10176 bytes
SHA-256: d7bc3a029211f3027ba918da22c27e753fa786dbda888b96810935df8e4a8cfc

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