Malicious PDF — malware analysis report

Static analysis result for SHA-256 d677a6ab300b5a14…

MALICIOUS

PDF

230.7 KB Created: 2021-01-04 05:21:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: c20e4b93f6076c23e50fb65010bac806 SHA-1: 9b069e6857a20fcae0ee51ae8b5058580552c7dc SHA-256: d677a6ab300b5a144c105412857c4c8f49dbe80fa5aed83c0961ceeff5e750de
210 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains heuristics indicating it's a malicious redirector and a phishing lure, specifically mentioning invoice/payment language and a download button. The primary URL, https://traffking.ru/123?utm_term=kindergarten+registration+2020+virginia, is flagged as a known malicious redirector. While no scripts were extracted, the PDF structure and linked URL strongly suggest a phishing attempt to download a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://traffking.ru/123?utm_term=kindergarten+registration+2020+virginia In PDF document text
    • https://cdn-cms.f-static.net/uploads/4386366/normal_5f8d7040ac62f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zesotat/romusepor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8167feb4-e47b-42a9-8353-930d1b5d3f74/paypal_customer_service_contact_number_australia.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1820720a-3b51-4cee-8a34-faf24f50a50a/survey_icon_blue.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9b8a7110-6c51-4729-b12a-03dab525df75/papa_louie_2_unblocked_games.pdfIn PDF document text
    • https://s3.amazonaws.com/xufaxoferugod/amadeus_radio_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/votuweroxigezog/34446040468.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d3dce9e-ef20-4333-9c14-53e4955e0828/2948999641.pdfIn PDF document text
    • https://s3.amazonaws.com/lebejos/39292219213.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a85b6e2-fafd-45bc-92da-85a98229544b/nifew.pdfIn PDF document text
    • https://s3.amazonaws.com/vokeri/30774843055.pdfIn PDF document text
    • https://s3.amazonaws.com/jivagajamav/79796299378.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c2a97b3f-50fd-4568-9075-fc6df4358b72/xirokixitijozidesa.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 7

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_off000354d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x354D0 5264 bytes
SHA-256: a73118a32cd75a8642ccd367a9a292bcc2c1c80de9840d50e03cf950ee1aa7a4
font_01_sfnt_off000366cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x366CF 11452 bytes
SHA-256: 049f948fe7cc9306d99d0d9c0dc68e168e298b4dde6bbf7c9dda04e5e80eea31

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