Malicious PDF — malware analysis report

Static analysis result for SHA-256 af5457b512397a48…

MALICIOUS

PDF

81.8 KB Created: 2021-04-27 08:17:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 77771f122f2c773efb667ab66e1845ce SHA-1: cab462b20b87c55c65326701b346674bd1ce9358 SHA-256: af5457b512397a482ba76245e1e04115b9089db356aad9f17dc53e0de74d6ff9
126 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as 'Pdf.Phishing.Trojan' and an ML classifier indicated a high probability of maliciousness. It contains numerous embedded URLs, many pointing to disposable hosting services, suggesting a link farm or redirection scheme. The document body, though heavily obfuscated, contains text related to 'El libro de los muertos egipcio', likely a lure to entice users to click on the malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://druttle.ru/strik?utm_term=el+libro+de+los+muertos+egipcio+resumen PDF link annotation
    • https://gonudelosake.weebly.com/uploads/1/3/4/7/134750135/5d5245b13874f1b.pdfIn PDF document text
    • https://fugakesuj.weebly.com/uploads/1/3/0/7/130776648/3474675.pdfIn PDF document text
    • https://mufikufit.weebly.com/uploads/1/3/4/7/134766202/xuxuluwirizimad.pdfIn PDF document text
    • http://watutuwox.iblogger.org/18344004946.pdfIn PDF document text
    • http://drilltech.info/parrot_mki9200_software_update_deutschzmtkb.pdfIn PDF document text
    • http://dostafood.xyz/chamberlain_genie_intellicode_instructionsv7foo.pdfIn PDF document text
    • https://leguwilevifemat.weebly.com/uploads/1/3/4/5/134595517/2552838.pdfIn PDF document text
    • http://azakalaza3.xyz/all_free_psd_flower_filesw6bvi.pdfIn PDF document text
    • http://dowinonajapa.iblogger.org/is_white_christmas_on_tv_tonight.pdfIn PDF document text
    • https://purapunebofo.weebly.com/uploads/1/3/4/8/134888030/8943216.pdfIn PDF document text
    • https://s3.amazonaws.com/muvemasoxaji/ubuntu_fdisk_format_fat32.pdfIn PDF document text
    • http://madewithsunshine.com/jevufazawitub45a.pdfIn PDF document text
    • http://fekowepiz.mywebcommunity.org/binary_logistic_regression_spss.pdfIn PDF document text
    • http://rezotu.xyz/419002008339c69y.pdfIn PDF document text
    • https://s3.amazonaws.com/nitidadufetenu/is_ib_visual_arts_hl_hard.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://ruvemad.myartsonline.com/goweborifoluxilalerive.pdfIn PDF document text
    • http://siwemoxoxawevuv.atwebpages.com/replace_heating_element_masterbuilt_electric_smoker.pdfIn PDF document text
    • http://fatufad.rf.gd/kezifowak.pdfIn PDF document text
    • http://gibopaxoga.epizy.com/bubileru.pdfIn PDF document text
    • http://vugugemo.atwebpages.com/congruent_supplements_theorem_definition.pdfIn PDF document text
    • http://mokupemoraworal.epizy.com/60568964934.pdfIn PDF document text
    • http://vekemelegewimo.atwebpages.com/how_do_you_find_exterior_angles_of_a_polygon.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

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f3ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3BA 5164 bytes
SHA-256: b302625c1a6fba4331af8e2eceb3b0478f170a6d77fe8bb4c05211a023cb2e46
font_01_sfnt_off0001052b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1052B 11904 bytes
SHA-256: 4d9ba3a86d8efd0f07a30237956c6cb5e45d837116c99c2e68d1a6664386bc87
font_02_sfnt_off00012b37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B37 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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