Malicious PDF — malware analysis report

Static analysis result for SHA-256 14a282ea8a5677e3…

MALICIOUS

PDF

46.0 KB Created: 2020-07-30 16:50:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 69fb97afc98eb1208230e1e96ae0a89f SHA-1: 998828d0a6ec0e0a0427b9f1b6baa31daf9db06b SHA-256: 14a282ea8a5677e3ca191240859701927ce2638351b0bb8ae74e35ff46f168c8
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 a phishing or scam attempt. The embedded URLs point to known malicious infrastructure, likely intended to redirect users to further malicious content or phishing pages. The ML classifier strongly supports the malicious verdict.

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=learn+french+pdf+online In PDF document text
    • http://files.sccwestcovina.net/uploads/1/3/0/9/130969790/3d8c49145c5b42.pdfIn PDF document text
    • http://files.tiffanywitownhall.com/uploads/1/3/1/4/131453618/4537409.pdfIn PDF document text
    • http://files.lipsbylil.com/uploads/1/3/2/6/132682822/0f13ec394564da3.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/1/0432/7319/1587/files/46216874315.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2266/1278/files/91972313603.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3952/1959/files/vofufovom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3046/3142/files/nopikadisukifelod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8779/7160/files/zejesuluzerawebexovibo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1047/4663/files/33474709538.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8085/2383/files/4663703139.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9581/7382/files/faridalizuxerefejag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8839/6959/files/22640767837.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8344/5925/files/gukigurute.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3102/0198/files/tuduxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7482/8953/files/genidigaxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8488/9758/files/fopune.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4077/6090/files/53207229153.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007799.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7799 4712 bytes
SHA-256: d390443edc6d89665f4af0aff6dd1a7587e7671b37aa0504a5ed8a09c2db71c5
font_01_sfnt_off00008781.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8781 10296 bytes
SHA-256: 61a7ec003bb917918787490bdcf421f0f265d2f9d93d535a0fc1b1158d105e55