Malicious PDF — malware analysis report

Static analysis result for SHA-256 e41e28ebdc200ae7…

MALICIOUS

PDF

76.6 KB Created: 2021-03-07 11:52:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e98e71e41b2c4d9550abab9178377ab2 SHA-1: f06e10765c4a71b64430f9aba6bc03901c72c69a SHA-256: e41e28ebdc200ae7b5be7701a2694c044334d07dc51c3c3f1299a84578a702d8
196 Risk Score

Malware Insights

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

The PDF contains numerous external links, many pointing to SEO-optimized content, suggesting a link farm or phishing lure. The presence of ClamAV and ML heuristic firings, along with the 'Pdf.Phishing.Trojan' detection, strongly indicates malicious intent. The primary malicious URL identified is 'https://lozipotod.ru/wix?keyword=ventajas+y+desventajas+de+facebook+lite', which is likely used to redirect users to malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://lozipotod.ru/wix?keyword=ventajas+y+desventajas+de+facebook+lite PDF link annotation
    • https://s3.amazonaws.com/dewazewokib/quiz_logo_game_level_20_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/nufidibodudulad/bikroy_app_for_android.pdfIn PDF document text
    • http://terakusinuw.mypressonline.com/edu_science_telescope_50-360_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/turip/45515024404.pdfIn PDF document text
    • https://nebofubegifeso.weebly.com/uploads/1/3/1/4/131437549/8989438.pdfIn PDF document text
    • http://movawizaxaxato.mywebcommunity.org/sunbeam_heated_blanket_directions.pdfIn PDF document text
    • https://s3.amazonaws.com/loxopudizus/walamojuw.pdfIn PDF document text
    • https://s3.amazonaws.com/lixisariwulo/89350040159.pdfIn PDF document text
    • https://xitirume.weebly.com/uploads/1/3/4/3/134392652/nenulavareziwubulimo.pdfIn PDF document text
    • https://nedilobimizedov.weebly.com/uploads/1/3/5/3/135346130/lafusutinim-zimodobufaxaj-wetitopit-sifigovo.pdfIn PDF document text
    • https://s3.amazonaws.com/goviwigax/departmental_exam_dec_2018_answer_key.pdfIn PDF document text
    • https://litukepulaj.weebly.com/uploads/1/3/4/8/134863372/vofupugemurep_maferuvakuxe_zezebaba_dakodesip.pdfIn PDF document text
    • https://s3.amazonaws.com/golepe/68801197856.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/0a6bc332-20a0-4a4d-b5b6-b8718ce45f02/is_wendys_spicy_chicken_salad_healthy.pdfIn PDF document text
    • http://pevipitoz.atwebpages.com/vorojavozusilerozoxenegiz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/480385a1-9625-4f54-88dd-663803b132c9/grunch_of_giants_espaol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb85b15d-6960-4334-9045-968b7ec20eab/business_mathematics_course_outline.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9efa1b94-8a9b-41c3-b9cc-4cc952e6fa96/tasco_trail_camera_reviews.pdfIn PDF document text
    • http://zokemunerepefu.rf.gd/bhojpuri_video_dj_m4.pdfIn PDF document text
    • http://xazisiloxumu.rf.gd/rufosiwoxakoguxuxofuke.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_off0000ead6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAD6 5324 bytes
SHA-256: 3e6aacb3737682d680bd6a435273c007e5c223cffd0f80c41674d7917d3040ec
font_01_sfnt_off0000fd21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD21 11748 bytes
SHA-256: d0a5e2165d8ef0d5a0a0ce5231e78333d7097e80ebf16b431f49c46e80cd6cca