Malicious PDF — malware analysis report

Static analysis result for SHA-256 433ffab69bf6efd2…

MALICIOUS

PDF

48.9 KB Created: 2020-07-31 09:43:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 78ca206de582d32a3926d7d6362f2df8 SHA-1: cb1b5bad3506daa18c5bca88f8c2661c38ae5634 SHA-256: 433ffab69bf6efd217ce7f1768409d52ddd0452d91d7673daca6b33681a77b6c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous embedded links, with the primary link directing to a known malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms this, and the presence of a 'PDF_SEO_LINK_FARM' suggests an attempt to generate traffic through search engines. The document body, though heavily obfuscated, contains text related to 'Employment card application form pdf', reinforcing the lure.

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=employment+card+application+form+pdf In PDF document text
    • http://files.justintheframe.com/uploads/1/3/1/4/131453250/4191059.pdfIn PDF document text
    • http://files.syfhq.com/uploads/1/3/1/4/131438692/4d38d80a3.pdfIn PDF document text
    • http://files.connorshillgospelhall.com/uploads/1/3/1/3/131380771/navefuribeduzin.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/1/0431/5742/2229/files/subetuvidijipuzi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7396/1125/files/40198006017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8344/0036/files/85397753372.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5042/5750/files/66751380438.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5955/2155/files/30267959189.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7708/4070/files/73165036353.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7104/4770/files/43161062000.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0664/7717/files/dirojosogajojozituvelofel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3397/7255/files/87116341641.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4773/9811/files/wisigexulumalule.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4136/4890/files/luzan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9857/0909/files/pivawuxedulumosuxul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6304/0408/files/94460894816.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4357/7256/files/8358850266.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/70899006671.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 5

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_off0000792c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x792C 4968 bytes
SHA-256: f06b837697678c2410df791add87775ca22a8cd08d4ff9738603fb7bef5da32e
font_01_sfnt_off000089fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89FB 14160 bytes
SHA-256: 050c1cad660602834231841c9558f2919366f71e1a68ceda38b72b947e926771

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