Malicious PDF — malware analysis report

Static analysis result for SHA-256 14fdcfeb1b38a4a4…

MALICIOUS

PDF

42.7 KB Created: 2020-09-11 05:21:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2d57773550acb71065aa608c28d85802 SHA-1: 0375b06aeaf3904aa870187ae3686a29baa0b85b SHA-256: 14fdcfeb1b38a4a4b35f89dd5c192f84621d419abcb2ab963626a05d9c597fe8
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing indicating redirection to known malicious infrastructure. The primary redirector URL is https://ttraff.club/wix?keyword=centre+align+form+in+html. The document body, though obfuscated, contains this URL, suggesting an attempt to lure users to a phishing or malware distribution site. 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.club/wix?keyword=centre+align+form+in+html In PDF document text
    • http://files.hurliherzistan.com/uploads/1/3/1/3/131379382/5327556.pdfIn PDF document text
    • http://files.albertawildapparel.ca/uploads/1/3/0/9/130969322/pisuxutuna.pdfIn PDF document text
    • http://files.iwill.us/uploads/1/3/2/7/132712034/1166092.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/1/0437/4419/8805/files/17377910747.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1567/5809/files/31504597202.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1400/2587/files/zotazojazedumasenoxeti.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/d99ef3_c4aa8ea8204241bbb750a88acdf646f7.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b50c55_d014afccfb2241629094c4a1c977eeb5.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/e6e573_3e96da4da2584109b7c781f9f1d6b86e.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_off00005e24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E24 4908 bytes
SHA-256: 570efda1b2a466f4c995805ed0b9b130cf50224377df8793806f98b5decce155
font_01_sfnt_off00006ea8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EA8 15352 bytes
SHA-256: 4380706f8979788ab9990746f45ccf800bd785d1dbeb3355caa824299bd74390