Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f9fe81d51cc7e46…

MALICIOUS

PDF

190.4 KB Created: 2021-03-18 00:25:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: eb1c36629e520d78171fb70a32ea3531 SHA-1: b91015a9606b614d554bbbb1984853434e60abec SHA-256: 7f9fe81d51cc7e460ff69b7a8b47b3892a49fca3cf740d8dca8064980b620fb8
126 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with a primary suspicious URL pointing to a site that appears to be a link farm or phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

Heuristics 5

  • 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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://botokaw.ru/wix?keyword=cpo+science+answer+keys PDF link annotation
    • http://erogan-encolumbia.site/apache_ignite_tutorialbfbzt.pdfIn PDF document text
    • http://wugupomovupa.sportsontheweb.net/15159523052.pdfIn PDF document text
    • http://fudoviwil.mywebcommunity.org/how_to_make_cajun_chicken_pasta_in_instant_pot.pdfIn PDF document text
    • http://rawitotizoxuk.scienceontheweb.net/grammar_games_and_activities_2.pdfIn PDF document text
    • http://dewikul.22web.org/cdf_relationship.pdfIn PDF document text
    • http://fopijuzege.22web.org/93379445996.pdfIn PDF document text
    • http://zupedaganivo.66ghz.com/sepipemopo.pdfIn PDF document text
    • http://forkidsshop.online/do_they_find_percy_in_the_son_of_neptuneaiwmm.pdfIn PDF document text
    • http://roflan.site/magilipemej1dm73.pdfIn PDF document text
    • http://boldly-grow.com/algebra_1_system_of_equations_word_problemsyk35s.pdfIn PDF document text
    • http://xupokaxe.medianewsonline.com/runifasofujufibil.pdfIn PDF document text
    • http://rozogididibusar.sportsontheweb.net/the_history_of_north_american_steam.pdfIn PDF document text
    • http://kavademive.sportsontheweb.net/how_to_get_more_views_on_your_business_facebook_page.pdfIn PDF document text
    • http://power-guard.shop/samsung_s4_user_manual08ies.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vefofiben.rf.gd/sketchup_pro_2020_license_cost.pdfIn PDF document text
    • http://zilazop.rf.gd/aadhar_card_form_in_marathi_download.pdfIn PDF document text
    • http://jikirukuda.rf.gd/vijakizenasusapofo.pdfIn PDF document text
    • https://4b5f4e46-8b81-4257-bf39-61fc08ba57b0.filesusr.com/ugd/7ea8bb_246ed78ae65448bd8e6ca1dff92c9a04.pdf?index=trueIn PDF document text
    • http://xibupafuvobiluk.rf.gd/73804020527.pdfIn PDF document text
    • http://zepogofeto.epizy.com/29674484716.pdfIn PDF document text
    • https://737c154f-ca75-4484-807d-9d5c19d76377.filesusr.com/ugd/7e84b7_9a90ddb643e84598b782bc605de082e6.pdf?index=trueIn PDF document text
    • https://02bc4616-4eae-4b38-b2c9-0e654f754ee0.filesusr.com/ugd/069df5_20f07d3b9e0d427884d5ec20f8ffe24d.pdf?index=trueIn PDF document text
    • http://bawavejukedosuv.epizy.com/vintage_border_frame_vector_free.pdfIn PDF document text
    • https://ca6b24e6-01cd-4368-a310-1df05077a315.filesusr.com/ugd/11b39a_ba21632e04fd425492b51ee27849a888.pdf?index=trueIn PDF document text
    • https://69f6cc44-9198-4e41-bafa-43503dba92bf.filesusr.com/ugd/dec231_bba7a625a7664ac3b0328848fbd362b7.pdf?index=trueIn 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_off0002b180.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B180 5056 bytes
SHA-256: a0b434e5b8913d131d2adbc58629598a85500078da6a810052062164790736e6
font_01_sfnt_off0002c2dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C2DC 11404 bytes
SHA-256: a0880dcbcb20af8b91d0270e600861a4cd3c1b239fdd205a3a4fd7f0cb72799c