Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9da2ae52d2c52ce…

MALICIOUS

PDF

74.7 KB Created: 2020-12-26 17:16:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 429188aa956a2373a4587d3596082707 SHA-1: 1acb67768490c453d87f72c4423e146c4c3beae2 SHA-256: e9da2ae52d2c52cee0d656adba255a5a6a317e2aabad9f929a00bf27b23aaf6a
194 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains embedded links that redirect to a known malicious domain, identified by multiple heuristics as a malicious redirector and phishing lure. The document body, though heavily obfuscated, appears to be related to a game guide, suggesting a social engineering pretext. The presence of embedded URLs and the ML classifier's high confidence score strongly indicate malicious intent, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://traffmen.ru/aws?utm_term=maplestory+m+guide+night+lord+equipment In PDF document text
    • https://cdn-cms.f-static.net/uploads/4472213/normal_5fbceb0fba95c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370275/normal_5fdce5a4587ce.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372086/normal_5f9a20d24c989.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446497/normal_5faaa34841de2.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/bubeto/bazixojurovageve.pdfIn PDF document text
    • https://s3.amazonaws.com/tapexiw/jurnal_cephalgia.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1012babf-da03-43cd-804c-5cc8335eb41a/ivy_league_basketball_recruiting.pdfIn PDF document text
    • https://s3.amazonaws.com/tobovunoberiki/archero_hack_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/xakajoziwibi/25247704407.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c56c5416-da8c-4983-a324-c0d254fc6d84/tupudunuregabibidizoxi.pdfIn PDF document text
    • https://s3.amazonaws.com/wixatax/lobafazu.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_off0000e262.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE262 5604 bytes
SHA-256: 4770cb84044e65098cf7b3cd3f711b1d684083e38996c0eddb325d60fbd0aa5c
font_01_sfnt_off0000f54e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF54E 11880 bytes
SHA-256: 18a4b55f75a9c7b5cadd4b966aa1cfaed653c3a7e6eedc65e76f3e83d3d1c002

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