Malicious PDF — malware analysis report

Static analysis result for SHA-256 627e40432a6e1a92…

MALICIOUS

PDF

39.5 KB Created: 2020-08-05 02:40:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 275f2cd01d7801f225d2263ff3f74cbb SHA-1: f1684c4e15b65ee49e31443b5ed452f805ffb137 SHA-256: 627e40432a6e1a92f844346085ddc9ff6b45ddfaa38899f11ffc6071659c3817
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector infrastructure identified as malicious. The document body, though partially corrupted, includes a URL that is also flagged as a malicious redirector. This suggests the primary purpose is to redirect users to malicious sites, likely for phishing or malware distribution.

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.ru/wb?keyword=notifier%20nfs-320%20operating%20manual In PDF document text
    • http://metorize.hannahlandjones.com/uploads/1/3/0/8/130814758/158484.pdfIn PDF document text
    • http://files.lynnseypattersonart.com/uploads/1/3/1/4/131437295/sozevuvo.pdfIn PDF document text
    • http://files.gingersnapsapparel.com/uploads/1/3/1/4/131437513/kepozakevivowepipef.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/1/0429/7926/2615/files/dynex_tv_codes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7197/9172/files/65905918626.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8711/6965/files/american_reunion_free_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4302/7106/files/28987973536.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7881/1797/files/rizatafemolexapu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2925/8649/files/padulimobopodugedes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0268/2789/files/98074716307.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9756/8920/files/adobe_illustrator_cs5_tools_and_functions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9430/2117/files/bekizeze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7289/6672/files/41603652986.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4069/3662/files/59990935216.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2804/6233/files/bodegas_alianza_precios.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_off0000595d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x595D 5660 bytes
SHA-256: a7984607b438951cdb38a238b83e5156cd89bb6894f43e87a834662713a9c0c6
font_01_sfnt_off00006c9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C9B 10844 bytes
SHA-256: dc4c71d71316e1d86ca9626000816d2b51d8e4fc1d4581e14b64e54c260874ba

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