Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd42d3ac98d1d9cb…

MALICIOUS

PDF

44.4 KB Created: 2020-11-04 08:33:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2fe021cb3f3d28e87ec5d0c8e4c13b57 SHA-1: 9a2b56bc0e91973f87e6a176e460aee0db814b0f SHA-256: cd42d3ac98d1d9cb173c5bb100d740d924cc3d706c17a13adec87ee04a814b75
142 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a lure related to an 'Authorization letter to collect passport' and includes a link to a known malicious redirector, ggtraff.ru. This indicates a phishing or malware distribution attempt. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a phishing or malware delivery attack pattern.

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.
  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://ggtraff.ru/strik?keyword=authorization+letter+to+collect+passport+vfs In PDF document text
    • https://cdn-cms.f-static.net/uploads/4424011/normal_5f9ed1b530a01.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391909/normal_5f9246ab22cbb.pdfIn PDF document text
    • https://nubojubixuxo.weebly.com/uploads/1/3/1/4/131410311/0a45d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393179/normal_5f974cebdb65d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409630/normal_5f96bf24a6512.pdfIn PDF document text
    • https://s3.amazonaws.com/wilugugo/metso_jaw_crusher.pdfIn PDF document text
    • https://s3.amazonaws.com/kudowo/46280749441.pdfIn PDF document text
    • https://s3.amazonaws.com/vitelitubovuluj/bakery_and_coffee_shop_business_plan.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://uploads.strikinglycdn.com/files/b5e07736-80b5-4dfb-a1a0-0947fc76a5b2/8238696793.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8102e29f-ad65-4dfd-aa52-9361c5e74764/kidewagipobefawixi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ca3fc2a-013f-433f-b87f-f2554a3c56ef/crack_the_core.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cab6f787-993c-4f9b-b49f-437e8402875e/47493647948.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 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_off0000621b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x621B 5084 bytes
SHA-256: 402b927b76d022e79a51e67165727f0f79bc679240c8ad6d2c430c8ece895946
font_01_sfnt_off0000736b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x736B 10328 bytes
SHA-256: d351d777ef5eb925f3e23aa62bc40edb31e44e80a94b0729e0f066a4f4f98fb9
font_02_sfnt_off000096bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96BC 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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