Malicious PDF — malware analysis report

Static analysis result for SHA-256 852eac0417c31dda…

MALICIOUS

PDF

38.2 KB Created: 2020-08-19 09:58:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8a9ee69f98d7ef215d30aa386ea057a1 SHA-1: 24bcc9f508fd42e2059503229c171fe5222f2c73 SHA-256: 852eac0417c31dda006d188985e8d2a0f291df82595b9b8c0b2f69ed86904349
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 service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL and references to 'broken heart wallpaper hd', suggesting a lure for users to click the malicious link. The ML classifier also strongly indicated 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=broken+heart+wallpaper+hd In PDF document text
    • http://files.ri4d.com/uploads/1/3/1/4/131406841/d0ac222d397d139.pdfIn PDF document text
    • http://gazed.larklandsroofing.co.uk/uploads/1/3/1/3/131383483/gapuxovujoz.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/1/0448/2200/3872/files/3d_maker_price.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6055/7984/files/27706803965.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7221/5448/files/total_azolla_zs_68.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4525/6352/files/taruresorev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8510/3255/files/79271373578.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/3312/9123/files/administracion_de_empresas_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5180/9942/files/nonowipalajube.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7399/3890/files/cambridge_complete_pet_teacher_s_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5555/4458/files/mivekaxunukowefisalisu.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000042ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42EE 5076 bytes
SHA-256: a7b68db6be7aa80218583b269a3f9bd7b284f7811b94bc5bea7d3854ad7ef992
font_01_sfnt_off00005435.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5435 10252 bytes
SHA-256: f248f6b21f0b1bef41fc116fb709d230b2064d8872ebbf8a4302d1318ed388b0
font_02_sfnt_off0000772c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x772C 16164 bytes
SHA-256: 3afbc95f4a2677bf4c8b77bd7df62e4dbeb651db4b5e482cf97b58e472170d58

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