Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b2476c90f1af0c4…

MALICIOUS

PDF

51.1 KB Created: 2020-08-04 05:23:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bd0dd1252add0f7c651ca28d5294be65 SHA-1: f51d9750464cb7cad17246d0cae8a221f9995423 SHA-256: 7b2476c90f1af0c48e807c6c960954db9fd99319a21f83d97907d0374396ac91
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service, suggesting a link farm or SEO poisoning tactic. The primary redirector URL is identified as malicious, indicating a phishing or scam attempt. The document body itself contains the malicious URL, reinforcing the lure.

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=computer+graphics+tutorial+point+pdf+download In PDF document text
    • http://polefolo.thegardenicearena.com/uploads/1/3/0/7/130776177/butobomamesote.pdfIn PDF document text
    • http://files.neiljohannsenart.com/uploads/1/3/0/8/130874380/9056561.pdfIn PDF document text
    • http://files.thegoodlifeheatons.com/uploads/1/3/1/4/131453695/vaminetine_beroxufemulur_monatikis.pdfIn PDF document text
    • http://files.newhavenpanhel.org/uploads/1/3/0/7/130739533/859dec44.pdfIn PDF document text
    • http://files.keeperofthemountains.org/uploads/1/3/1/4/131453453/1142a33f72.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/1/0433/7873/7310/files/72109606609.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9671/6952/files/vekisimepi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2897/1681/files/sedawikemazuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1956/6231/files/tapipafabepatawawidemonev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3137/9619/files/nekoridubafoxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9865/1288/files/tukimijulamafetukanaba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4136/6951/files/the_veil_rpg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9665/4489/files/motinajutobe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3292/0739/files/32386074550.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0935/1578/files/74487514237.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 7

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_off000081c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81C3 5564 bytes
SHA-256: 941ee60ae3edd9216885781c0f665757f7e12a1b137da4992b2b60bc5cbb5ae8
font_01_sfnt_off00009490.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9490 13464 bytes
SHA-256: 4eabddf08729057cd2f1f7dc0af1302c14ae0fdf9545b6fb185ead4888210e50

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