Malicious PDF — malware analysis report

Static analysis result for SHA-256 d007fbdb581936e2…

MALICIOUS

PDF

75.6 KB Created: 2021-03-24 15:53:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a4115c7dca1b2b836ec0220401d92d85 SHA-1: e393910f8849bcb474c55c8c2b460962e62aa649 SHA-256: d007fbdb581936e2e7ac4b09fb90ddf75865da6047eb446dab68922a4028f0d2
136 Risk Score

Malware Insights

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

The PDF file contains a lure related to educational material ('algebra 2 glencoe') and employs a redirector URL to a phishing site. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or credential harvesting. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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://vilenefex.ru/wix?keyword=algebra+2+glencoe PDF link annotation
    • https://s3.amazonaws.com/nitajosasa/nabojebakegurav.pdfIn PDF document text
    • http://mubinazo.22web.org/aashiqui_2_movie_video_songs_free.pdfIn PDF document text
    • https://s3.amazonaws.com/kifutizijebuj/jeffrey_archer_books_mightier_than_the_sword.pdfIn PDF document text
    • http://logowiwubapokar.iblogger.org/forklift_truck_daily_checklist_template.pdfIn PDF document text
    • https://s3.amazonaws.com/pizivurapab/20974874097.pdfIn PDF document text
    • https://s3.amazonaws.com/jadere/13777245097.pdfIn PDF document text
    • https://s3.amazonaws.com/galinikagopit/actrapid_penfill_information.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
    • http://puwekaxaxowiza.epizy.com/carbohydrate_chemistry_and_biochemistry_structure_and_mechanism.pdfIn PDF document text
    • http://nozovov.rf.gd/a._m._u_application_form_2019.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/09c89e5a-a758-484e-af1f-37bc55576c12/what_does_it_mean_when_the_link_light_is_blinking_on_my_modem.pdfIn PDF document text
    • http://xuvisoz.epizy.com/21750783339.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b2f7eb1-0cc3-463d-b699-2a08d97a3688/jacobsen_mower_parts_dealer_near_me.pdfIn PDF document text
    • http://madojizekikozor.epizy.com/boxing_star_hack_apk_mega.pdfIn PDF document text
    • http://bozonesowozo.epizy.com/nubupafetifeg.pdfIn PDF document text
    • http://vodadusilop.rf.gd/voucher_template_d365.pdfIn PDF document text
    • http://pevivudawof.epizy.com/analog_and_digital_signal_processing.pdfIn PDF document text
    • http://zeliganav.epizy.com/39196009513.pdfIn PDF document text
    • http://wabamuvakotobu.epizy.com/bajilugeradevik.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/481992a3-8ee1-4dc6-bd5e-3a366d8a6ffa/percy_jackson_lightning_thief_book_chapters.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_off0000dd5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD5E 4708 bytes
SHA-256: 7f8be8ef1cd6d58c4b788ebc321ef3d7952a17367c624e3d2fde4fec6eda6c6a
font_01_sfnt_off0000ed59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED59 10884 bytes
SHA-256: 29aefe8164bca8736c3e50209a250863e70ad1122404a392dd59ec28daada62b
font_02_sfnt_off000111dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111DD 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333