Malicious PDF — malware analysis report

Static analysis result for SHA-256 449d0d9b6be7cb5c…

MALICIOUS

PDF

71.5 KB Created: 2020-12-28 19:44:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 1a5b50cfae518a25c6b2f5e95fe9fe83 SHA-1: d27f214e2ff0ee0cb61089986c667448978a493a SHA-256: 449d0d9b6be7cb5cea2dd4da5d8b5de593815d26be89a6cf3d08a0812ba89932
254 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file contains multiple links to redirector infrastructure, including the primary malicious URL https://traffine.ru/strik?utm_term=neuroshima+hex+ipad+review. The presence of numerous external PDF links suggests an attempt to create a link farm or distribute malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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.
  • 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://traffine.ru/strik?utm_term=neuroshima+hex+ipad+review In PDF document text
    • https://nibuwoxemunovox.weebly.com/uploads/1/3/4/7/134714338/06e61324fd3.pdfIn PDF document text
    • https://cdn.sqhk.co/simunenij/hpjeii0/big_launcher_alternative.pdfIn PDF document text
    • https://cdn.sqhk.co/goluxewimabu/igRhgGo/sugufebefezivaz.pdfIn PDF document text
    • https://pagazamis.weebly.com/uploads/1/3/5/3/135310118/8322298.pdfIn PDF document text
    • https://jodavetofa.weebly.com/uploads/1/3/1/4/131438562/ccb4f4.pdfIn PDF document text
    • https://kifitakuridugiv.weebly.com/uploads/1/3/4/7/134770331/3225726.pdfIn PDF document text
    • https://tagepixibupiz.weebly.com/uploads/1/3/4/5/134586800/saxikivemuvaleranej.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e4891c5-29e1-4140-a115-bd58e5f696fc/84902402750.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/61444a92-510e-40c2-acce-1c9deeb6e71c/feed_the_head_2_unblocked.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8261ab39-523d-447b-9a00-82d6e2401060/kagiwu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fcdfe4c3-feaf-44e1-b834-4c644e4b2c05/rojuwimu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b771fbb6-aa56-4af2-9889-a35a5a32f3a1/mckelvie_intermediate_school_lunch_menu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dec46164-a361-4a75-94c2-02c0cbca72b7/kuranonunajunavibotoji.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_off0000da71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA71 5356 bytes
SHA-256: 8e86962571523e51db1677cb1ff52f7a4abfa1b814c84b067003a352c44328bc
font_01_sfnt_off0000ec8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC8D 10840 bytes
SHA-256: 9a7c38eb436b723cf7197b9c0f77b04e9c2b7d9b504877bb3c25c61ff954fc07

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