Malicious PDF — malware analysis report

Static analysis result for SHA-256 c53114b75694a9b5…

MALICIOUS

PDF

75.6 KB Created: 2021-03-03 07:56:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 32630428a45f09a1d95db6de641ef599 SHA-1: 3df1d688cafa18c634ba1d9c6bc9e74b1c231581 SHA-256: c53114b75694a9b52bbf5c048d6804084aa5ce5791d7be2a7979ef586cf84d5c
144 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF document contains heuristics indicating it is a phishing lure, specifically designed to trick users into clicking a link that leads to a redirector. The ML classifier and ClamAV detection strongly suggest malicious intent. The primary IOC is the redirector URL, which likely leads to a phishing page or a download of a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • 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
  • 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://jottigo.ru/award?keyword=how+to+put+pictures+on+your+apps+iphone PDF link annotation
    • http://muzolifuvekimew.22web.org/the_metamorphosis_relationship_between_gregor_and_his_father.pdfIn PDF document text
    • http://luvuzerosotavu.iblogger.org/wabibowugowerupos.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484107/normal_60064f7048dc1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449769/normal_5fc797c056e11.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410727/normal_6014590ded5ac.pdfIn PDF document text
    • http://jidapuxedepu.medianewsonline.com/2987733479.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387933/normal_5fff15c8837e1.pdfIn PDF document text
    • http://vibolofisef.mywebcommunity.org/kjv_study_bible.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496816/normal_602daa58d27b1.pdfIn PDF document text
    • http://jakivuxevova.22web.org/ethnographic_approach_to_research.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487399/normal_5fedfab59851b.pdfIn PDF document text
    • http://fajiriduxir.medianewsonline.com/digital_manufacturing_for_dummies.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/pafexegud/soundhound_apk_android_4._4.pdfIn PDF document text
    • https://s3.amazonaws.com/degagaziv/83151451321.pdfIn PDF document text
    • https://s3.amazonaws.com/zukogi/12854881048.pdfIn PDF document text
    • https://s3.amazonaws.com/teximikamukubo/fokibeziledojapototagep.pdfIn PDF document text
    • http://zamewoj.rf.gd/78072527005.pdfIn PDF document text
    • https://s3.amazonaws.com/midipes/fujifilm_instax_wide_300_instant_camera_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/nemafu/27130686299.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_off0000ebcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBCB 5144 bytes
SHA-256: e2c9e9ef8e5afd2767a04c610dbe5499f49b32c836495d8327c9ebf718569a95
font_01_sfnt_off0000fd5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD5B 10476 bytes
SHA-256: 27457d744ee94f212a887e7dad182d8874f624044b02259c6c3ca9201722a42f

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