Malicious PDF — malware analysis report

Static analysis result for SHA-256 96f09335234af7ef…

MALICIOUS

PDF

76.5 KB Created: 2021-03-16 03:19:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3ce5870b176076d3c4735d4479a28352 SHA-1: d5f97a1d4f1c7fe7032a65c07293c49f01783af3 SHA-256: 96f09335234af7ef1481c6d513fa6a8bbcb655bd936bbd8716b4ebadc224f918
126 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a phishing or trojan distribution attempt. It contains numerous embedded URLs, with several pointing to suspicious domains like druttle.ru and cdn.sqhk.co, suggesting a link farm or redirection mechanism. The document body, though partially corrupted, mentions 'Gestor de arranque windows xp y 7', a lure to attract users seeking system boot information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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
  • 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://druttle.ru/wix?keyword=gestor+de+arranque+windows+xp+y+7 PDF link annotation
    • https://cdn.sqhk.co/lizuxutagisu/2jdphdo/mother_earth_news_print_subscription.pdfIn PDF document text
    • https://s3.amazonaws.com/tokudapele/18923304761.pdfIn PDF document text
    • http://artyom.guru/kenwood_ts-570dg_reviewj4nig.pdfIn PDF document text
    • http://creditscorefix.info/what_is_the_plot_of_prince_caspian1fpdp.pdfIn PDF document text
    • http://kawlites.online/dasopurezanupuwermrrdr.pdfIn PDF document text
    • https://cdn.sqhk.co/kidurukazag/gfuijjh/24032750882.pdfIn PDF document text
    • http://predouche.xyz/kosovawamuki8qgnb.pdfIn PDF document text
    • https://s3.amazonaws.com/fekife/solve_quadratic_equation_using_vertex_form.pdfIn PDF document text
    • http://tedurelaseji.mygamesonline.org/82139360554.pdfIn PDF document text
    • http://tinivoze.22web.org/transfer_photos_from_android_to_iphone_backup.pdfIn PDF document text
    • https://s3.amazonaws.com/padadutiseni/a_clockwork_orange_1971.pdfIn PDF document text
    • https://cdn.sqhk.co/kososojog/Zii0Uhf/xijerokofumujoganiwifem.pdfIn PDF document text
    • https://s3.amazonaws.com/bejokazemur/cisco_catalyst_3650_g_manual.pdfIn PDF document text
    • http://alkostore.xyz/megubogeriu7j10.pdfIn PDF document text
    • https://s3.amazonaws.com/leteraxewe/apprendre_a_ecrire_le_chinois.pdfIn PDF document text
    • https://cdn.sqhk.co/mofosalamo/cjjcvgd/9489330611.pdfIn PDF document text
    • http://nogivubuleduwi.22web.org/gozejamuzukuw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://1ffb5d6c-d890-49e0-9b87-dc10fbfa49e2.filesusr.com/ugd/8bc2a6_bf3e44f4191045e9a701395614580857.pdf?index=trueIn PDF document text
    • http://gipebevu.atwebpages.com/304496047.pdfIn PDF document text
    • https://5090c2af-253d-40c3-bfb7-942fc6db26b0.filesusr.com/ugd/0511f5_bd404b7b1feb4354bd207e8d6e0c9b26.pdf?index=trueIn PDF document text
    • https://d5fb4b5d-766d-4e54-ab1c-ecc61d2b7d82.filesusr.com/ugd/b0c8dc_b626034d5eed429c96a979339860a481.pdf?index=trueIn PDF document text
    • http://revupeponalewuj.epizy.com/berlin_public_transportation_map.pdfIn PDF document text
    • http://sakunesazodi.epizy.com/muvegad.pdfIn PDF document text
    • https://cf62593c-3f62-494e-9ef9-3c2a63ead7d7.filesusr.com/ugd/93dae2_cc5cd236ed43457abbfc8cfa3d0d97d3.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_off0000eac3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAC3 5420 bytes
SHA-256: 421d41ba7d6b345af27a5ae6a726d7f02fa441a871582a24ce1a9945641e060e
font_01_sfnt_off0000fd62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD62 11520 bytes
SHA-256: 837e3e16e80a9e00813400c05a6a4809141438d6c91cc526a2a2b577da657cc1