Malicious PDF — malware analysis report

Static analysis result for SHA-256 518219068ff7c13f…

MALICIOUS

PDF

75.0 KB Created: 2020-08-11 06:48:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 85beb698880f5f19013c82725bb9d92e SHA-1: 98e9f74d0dd7de2cdcf828197ca54dc666458379 SHA-256: 518219068ff7c13fa223118c9ec3c0c2116cb4480cc8378b18bed7df5aa8e1b2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though partially corrupted, includes a URL that matches the one identified by the heuristic. This suggests the primary attack vector is to trick users into clicking malicious links disguised as document content, leading them to potentially harmful websites.

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/pify?keyword=estudio+sobre+el+bautismo+del+espiritu+santo+pdf In PDF document text
    • http://files.mapleafdals.com/uploads/1/3/1/6/131606284/powusibewirini.pdfIn PDF document text
    • http://files.timsguitar.net/uploads/1/3/1/3/131381464/dfce114854a4f50.pdfIn PDF document text
    • http://nedol.prairiesun.com/uploads/1/3/0/7/130776433/nifeloj.pdfIn PDF document text
    • http://files.wanderingwander.com/uploads/1/3/1/4/131438557/5761702.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/1/0431/6859/6123/files/zepawojox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5930/5880/files/suzigudonikesirulexa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7487/0689/files/55805094039.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2508/9191/files/tosazabagesewekupelava.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2117/9816/files/97686813413.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7723/7920/files/fusion_fichier_gratuit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3514/7933/files/free_anaesthesia_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/8638/4023/files/business_email_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2802/8312/files/authorized_king_james_version.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5586/6263/files/85883539905.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2670/1718/files/89942197125.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0571/4338/files/sojenawugak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7281/4245/files/ninulawivixixenebelekuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8664/2336/files/gosafilabaletoxuvofug.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d7d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7D4 5168 bytes
SHA-256: c4e7dab1e8834508fee57ef0dc433855fdfd76ee3d52b0c5f0292547da9ff31a
font_01_sfnt_off0000e93f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE93F 11428 bytes
SHA-256: 6c931f3355b980b24523dfcb92733cc1f6596abc092176344509627701fe00c4
font_02_sfnt_off00010e62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E62 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c