Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee41ff1956c857cf…

MALICIOUS

PDF

75.6 KB Created: 2021-01-25 19:45:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 507ff090c179b9f5d2d15d084fe1f9b2 SHA-1: 3bf9fa519d36b6f04f3450627fc6cf9e66447126 SHA-256: ee41ff1956c857cfa2a4235acf01bac026baa9695efc5c0c718c5b7f17a16b45
136 Risk Score

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 a URL that appears to offer a free download. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a phishing campaign designed to trick users into downloading further malware.

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://druttle.ru/123?utm_term=toshiba+sound+bar+speaker+system PDF link annotation
    • https://cdn.sqhk.co/vabadoma/chhzY1s/59429311714.pdfIn PDF document text
    • http://sawotawigusewon.22web.org/49493681597.pdfIn PDF document text
    • http://cg-designer.xyz/surviv._io_aimbot_githubs2h5c.pdfIn PDF document text
    • http://kwini-fini.online/dreamville_sacrifices_instrumental_mp3_downloadouh89.pdfIn PDF document text
    • http://ketousa.site/144491637541coxo.pdfIn PDF document text
    • http://kekebum.22web.org/full_android_os_watch.pdfIn PDF document text
    • http://mandarins.space/tap_building_umichcz26u.pdfIn PDF document text
    • http://vsspb.ru/98417526007zhomv.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pikarofuwab.epizy.com/gajus.pdfIn PDF document text
    • https://s3.amazonaws.com/rimepusox/bundle_meaning_in_android.pdfIn PDF document text
    • https://s3.amazonaws.com/falevi/59310499936.pdfIn PDF document text
    • https://s3.amazonaws.com/limepusotanal/talking_cat_song_video.pdfIn PDF document text
    • http://bipitor.epizy.com/jilomimawerezofonipu.pdfIn PDF document text
    • https://s3.amazonaws.com/xoxaneral/loan_calculator_google_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/pusixa/birthstone_chart.pdfIn PDF document text
    • http://rokabimokow.rf.gd/serenissima_informatica_austria.pdfIn PDF document text
    • https://s3.amazonaws.com/siwixomudit/authorization_letter_template_philippines.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_off0000eb9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB9C 5424 bytes
SHA-256: 075045cc8c0a080bb0f8bc510305c427940252802761dbe893cf40258aae5ae7
font_01_sfnt_off0000fddf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDDF 10504 bytes
SHA-256: ed7c27c3842b02783ed36e2ebaafab4e6948a39a3481b6910416d58bff1fd3aa

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