Malicious PDF — malware analysis report

Static analysis result for SHA-256 58dc821814f3cdcb…

MALICIOUS

PDF

76.9 KB Created: 2021-02-05 10:52:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 994d7a46a27e41018bc7f2d02e78b093 SHA-1: 102d19ced6bdbc3567492eedd4c22f33744dca8b SHA-256: 58dc821814f3cdcbf3278d7d27ab22e6eef84ec21283bc189c41eafaf8133d2f
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was identified as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains an external URI and an image lure pointing to a redirector URL, suggesting a phishing attempt disguised as a user manual. Although no scripts were extracted, the presence of malicious URLs and the overall detection indicate a phishing campaign.

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=honda+civic+user+manual+2017 PDF link annotation
    • http://momentikshop.space/tarrega_endecha_oremus83qtu.pdfIn PDF document text
    • http://badgesverified.com/best_board_games_2020_boardgamegeekzkpq8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403141/normal_600b388febbba.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462035/normal_5fff4c995a0e3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480148/normal_5fd9bc6a8d4b2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4474977/normal_6004ed6405b94.pdfIn PDF document text
    • http://about-central.com/jquery_append_object_to_form8ebiq.pdfIn PDF document text
    • http://fitnesspack.net/examen_resuelto_enlace_quimico_2_bac0zurh.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373271/normal_5fea186ea1150.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417670/normal_5fdc89c64ae41.pdfIn PDF document text
    • https://cdn.sqhk.co/fanabezom/ifFhbha/bts_dynamite_mv_teaser_views_in_24_hours.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/sizabo/clarinet_jazz_sheet_music_for_beginners.pdfIn PDF document text
    • https://s3.amazonaws.com/pibabopuduj/redusulokik.pdfIn PDF document text
    • http://xosufatobula.rf.gd/free_blackjack_game_app.pdfIn PDF document text
    • https://s3.amazonaws.com/migivewuwe/r_blends_worksheets_first_grade.pdfIn PDF document text
    • http://fusuxitizubuka.epizy.com/kodelikejatexati.pdfIn PDF document text
    • https://s3.amazonaws.com/jitimesolagun/android_mobile_codes.pdfIn PDF document text
    • http://vajowevub.epizy.com/jeloberidakaz.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_off0000efc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFC7 5512 bytes
SHA-256: b73a25654ac07fbbccd57d87eca70273d0432ea1fe8a83490be2bd1d2a6d0973
font_01_sfnt_off0001027e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1027E 10464 bytes
SHA-256: 6c11343e5f544494438c56dbdb89025513469f6615c0aeb4351733767d55a9e0

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