Malicious PDF — malware analysis report

Static analysis result for SHA-256 62d54f41489b68c3…

MALICIOUS

PDF

61.3 KB Created: 2020-11-13 21:04:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 3856d8ad08e30cf4f5a7469ea9860346 SHA-1: 9c23b06438c12ffe67ccd37097e0cbd6067f4f60 SHA-256: 62d54f41489b68c30210de430bb114511e8772a58710b22adf2e31c358369c68
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a link to a known malicious redirector, https://cctraff.ru/123?utm_term=philips+airfryer+xl+dimensions, which is a strong indicator of phishing or malware distribution. The ML classifier and ClamAV detection further support the malicious nature of the file. Although no scripts were explicitly extracted, the PDF structure and embedded URL suggest an attempt to redirect the user to a malicious site, likely as part of a spearphishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • 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.
  • 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://cctraff.ru/123?utm_term=philips+airfryer+xl+dimensions In PDF document text
    • https://cdn-cms.f-static.net/uploads/4460688/normal_5fadacd21380b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384160/normal_5f8ddd8561e51.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370097/normal_5f9c5124d106f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366637/normal_5f874a73cb48f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407789/normal_5f9d3f5437716.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388815/normal_5f9f8b78704d6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389352/normal_5f94be167912b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375361/normal_5fad3f62ad0f5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426675/normal_5f99df25d05d7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417659/normal_5f9d951eef2fc.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/f8063582-bbf7-4cee-8ddd-1ba75efb33c2/dead_bug_society_edwardsville_il.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8437d42a-ae53-4c2b-9c1e-1185023f7707/judy_brady_i_want_a_wife_citation.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/24724570-075e-43eb-9494-94020f4b686b/wazetitulineregujogu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b15ce651-90f1-4922-bfd8-ba85758f0098/19842609287.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/73a139d2-3cc8-4d53-a2ca-7f884f789afd/stimulus_update_round_2_news.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 2

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_off0000ab0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB0D 5160 bytes
SHA-256: 7bf333ba1c4d9ed1ee8fa2ae3d503c762a89473f04e24459f1d7adf9192dbbac
font_01_sfnt_off0000bc71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC71 8696 bytes
SHA-256: 9810070430791aef453b6085d588723e4ee70dec593f18223df204a9f5aa3be8
font_02_sfnt_off0000d9d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9D7 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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