Malicious PDF — malware analysis report

Static analysis result for SHA-256 7bd3264e8f646d64…

MALICIOUS

PDF

59.9 KB Created: 2020-08-19 13:30:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bfc0439ae21cde96a3f6e4d61867afc4 SHA-1: 241d9958952084a16f351f25408978fce4b153a1 SHA-256: 7bd3264e8f646d64fcc71c7c9ddc7ea2ec5b1c5eeabc74312b5e4ff8e4bf0f32
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting an attempt to distribute further malicious content or phish users. The embedded URL points to a redirector, which in turn links to numerous other PDFs, likely as part of a SEO-based distribution scheme. The ML classifier strongly indicates maliciousness.

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=journey+2050+worksheet In PDF document text
    • http://kisus.total-recovery.co.uk/uploads/1/3/2/7/132710575/aaea3c94.pdfIn PDF document text
    • http://files.yhwhourrighteousnesschicago.net/uploads/1/3/1/8/131856545/3372068.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/1/0437/1713/2442/files/lonely_planet_russia_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0985/9999/files/soxijumipibasiwepa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7571/4715/files/free_games_harvest_honors.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4849/2438/files/42873768574.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4993/4231/files/commercial_broker_fee_agreement.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5466/9729/files/suvibowiroxelonulubumef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/6986/9975/files/wings_birdy_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5360/5273/files/gupibemujumokota.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6504/0286/files/9676034926.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/41448402009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6807/0824/files/79419507001.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6699/7398/files/76633411579.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7248/6564/files/1368222483.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2994/4730/files/skull_base_anatomy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3058/5239/files/jupakogi.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 3

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_off0000ab01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB01 5176 bytes
SHA-256: d9e88fee265e0c96af17f13dd851e6a17a7d3b2481df427b8e11a883307744bd
font_01_sfnt_off0000bcbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBCBC 11072 bytes
SHA-256: 2cf5a8838fa523d804e782a90ac52cb4aa42d9c660fc371584247b7404380e07

Open this report in the interactive analyzer, or submit your own file for analysis.