Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1639e9d8c1b2d17…

MALICIOUS

PDF

84.0 KB Created: 2021-03-09 05:19:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 0969eeb45ecba6c9f256535fbdbe1e9c SHA-1: 2f8450243afe91d483da59b54d6416e2ca3920fd SHA-256: a1639e9d8c1b2d1704f053af46d9a0bda61b915190c0350ad14761d5c61f28e7
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains heuristics indicating it is a phishing lure, specifically using an image to redirect users to an external URL. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded URL, https://fokemale.ru/strik?utm_term=pedro+como+agua+para+chocolate+autora, is identified as the primary indicator of compromise, likely leading to a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://fokemale.ru/strik?utm_term=pedro+como+agua+para+chocolate+autora PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4499979/normal_602fb93733966.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376852/normal_5ffa26c170ac3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4394068/normal_6027e9b6ae70b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389797/normal_5ff1366e6cc04.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388608/normal_5fd66b8f9b704.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452599/normal_5ff1130258163.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414353/normal_601ae51434d8d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472213/normal_5fee40c75f06b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416672/normal_6035a79e10a91.pdfIn PDF document text
    • http://creamwalls.online/95402796489rp8qp.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486742/normal_602c6333776d1.pdfIn PDF document text
    • http://fbcopyright-center.com/home_network_setupzusbm.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488101/normal_5fe20f4ce174b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408348/normal_600c77796abd6.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/a6931f87-395a-4bc0-96c9-ec71acf39ea3/football_field_template_free.pdfIn PDF document text
    • http://vonezilomobupir.rf.gd/b_v_rao_world_history_upsc.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ca3b9197-f4f2-49c5-920f-314d3a389bf8/84143187903.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c48cdd58-cf05-48b1-9227-96e3723f045d/what_is_a_good_personal_objective.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a0aaeec7-0208-41b1-9665-1ec509b9c83a/29098650527.pdfIn PDF document text
    • http://dulaxidej.epizy.com/73504030309.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010a30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A30 5308 bytes
SHA-256: 65cae9e4b01be45f9b22559ad7253856623823fc157c434b1b36baef39008a0d
font_01_sfnt_off00011c10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C10 11528 bytes
SHA-256: d61e6f0d6dc9740c32a74acd63106b44a12e1e096d1cf7ba4630597a81d60f93

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