Malicious PDF — malware analysis report

Static analysis result for SHA-256 3133eac004c1a380…

MALICIOUS

PDF

80.8 KB Created: 2021-02-21 17:18:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 00817679c3e738c5adc2de7d3d0a8740 SHA-1: 2858aaa66d77a621c3b5a2ce78aa7af27dc5b26f SHA-256: 3133eac004c1a38095f8492c62fdb44cfebcacc919624b92daec9def5d5486af
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF document contains heuristics indicating it is a phishing lure, specifically using an image to redirect users to an external URL. The embedded URL, 'https://druttle.ru/strik?utm_term=whirlpool+washer+and+dryer+repair+service+near+me', is flagged as a redirector for free-download phishing. ML and ClamAV detections confirm the malicious nature of the PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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/strik?utm_term=whirlpool+washer+and+dryer+repair+service+near+me PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4416939/normal_5fd1c91e20e57.pdfIn PDF document text
    • http://thesimplycompleteseries.com/vipertek_vts-979_manualxgvbd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384307/normal_601dfd46bc06c.pdfIn PDF document text
    • http://astrology-personal.online/movie_the_lion_king_1994qmhr5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4530578/normal_5fdb3ea0f3210.pdfIn PDF document text
    • http://albatros-trans.ru/bertaruh_rindu_om_adella8yxfz.pdfIn PDF document text
    • http://winwites.space/words_that_start_with_o_kinderyyy1n.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367680/normal_60133dd01c6a4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/fomaralunex/chrome_setup_for_windows_7.pdfIn PDF document text
    • http://pupuwejerew.epizy.com/brene_brown_shame_shields_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/lupuvogotog/motelasijexibalinoz.pdfIn PDF document text
    • http://nanomunem.epizy.com/autosketch_pro_app.pdfIn PDF document text
    • https://s3.amazonaws.com/memobofilenabon/dogafofovowerifadodez.pdfIn PDF document text
    • https://s3.amazonaws.com/tipikaxe/37036572587.pdfIn PDF document text
    • https://s3.amazonaws.com/dukexajuj/83042997049.pdfIn PDF document text
    • http://suwotewi.epizy.com/esl_pre_literacy_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/fopalew/gepixolididowuzirapep.pdfIn PDF document text
    • https://s3.amazonaws.com/vexosafugunu/gattu_naresh_naa_songs_ing.pdfIn PDF document text
    • http://kirutitas.epizy.com/zutezuweremalun.pdfIn PDF document text
    • http://bodagoge.epizy.com/battle_house_movie_songs_pagalworld.pdfIn PDF document text
    • https://s3.amazonaws.com/nedijowewoded/kylie_hutchinson_innovative_evaluation_reporting.pdfIn PDF document text
    • https://s3.amazonaws.com/libeganot/tikirififiparanuzuv.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f12a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF12A 5288 bytes
SHA-256: 02cece174d554c84a18817039f636207e336c3cab47bda221bff3a67af4df899
font_01_sfnt_off000102ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102FF 10640 bytes
SHA-256: 0f45d1b39eb0f2581b808e6691fac3a8cf296d1401262f879a582ecc56df5c93
font_02_sfnt_off0001273f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1273F 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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