Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa451714cf16445c…

MALICIOUS

PDF

532.6 KB Created: 2022-04-16 07:26:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-28
MD5: 0abe0ce7e08ee8b9e6f654fbde20e434 SHA-1: 76b909aa602ea5f69cc88d65b2a0154c53d85af5 SHA-256: aa451714cf16445ce129796f5f7e7752d5b2e97ff909e5a01093dcdeb4bdf0f0
104 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3918

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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://colod.co.za/XSRYdR1H?utm_term=candy+crush++for+windows+8.+1+pc PDF link annotation
    • http://boletos.luzservicos.com/ckfinder/userfiles/files/zuguzofoginutuwara.pdfIn PDF document text
    • http://studiotecnicobergamaschi.it/userfiles/files/lotakere.pdfIn PDF document text
    • http://www.proektes.ru/kcfinder/upload/files/vibavuwazonalilava.pdfIn PDF document text
    • https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/7d258123d2ace5a4c7f53579642bfce8/vokutejib.pdfIn PDF document text
    • https://zapotaputilaka.weebly.com/uploads/1/3/2/6/132683001/bejinenikexumal.pdfIn PDF document text
    • https://www.au-holding.ru/kcfinder/upload/files/zidufakemupoz.pdfIn PDF document text
    • https://xitarowax.weebly.com/uploads/1/3/2/6/132681505/xesas-zogavop-mobuvaxo.pdfIn PDF document text
    • http://dermalab.pl/userfiles/file/batolubomamamim.pdfIn PDF document text
    • https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/4t2rgq1u314qpds3kg384uam1d/60551407175.pdfIn PDF document text
    • https://xofeboje.weebly.com/uploads/1/3/4/5/134584890/sezat_nigomejuz_dijenemazax_ponujegovel.pdfIn PDF document text
    • http://goldmustang.ru/files/files/walev.pdfIn PDF document text
    • https://javisifuwo.weebly.com/uploads/1/3/5/3/135304639/sixakedefoputa_ganixakuvud.pdfIn PDF document text
    • https://rovividupezudu.weebly.com/uploads/1/3/4/3/134373795/muponegukub.pdfIn PDF document text
    • https://baxegirugono.weebly.com/uploads/1/3/5/3/135319521/35dc18281dd.pdfIn PDF document text
    • http://topmebli.com/content/xuploadimages/file/26783888269.pdfIn PDF document text
    • https://subomegufixaj.weebly.com/uploads/1/3/6/0/136055214/1183205.pdfIn PDF document text
    • https://gimepaponu.weebly.com/uploads/1/3/4/6/134614910/6170605.pdfIn PDF document text
    • https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/16212d75aacc4e---42936710629.pdfIn PDF document text
    • http://lafiestadelmoto.cz/files/file/90499165433.pdfIn PDF document text
    • https://dotodologeviron.weebly.com/uploads/1/3/4/5/134513902/zaropavavapo.pdfIn PDF document text
    • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1622171fd87049---15780750342.pdfIn PDF document text
    • https://libertyrealestate.in/ckfinder/userfiles/files/18338120377.pdfIn PDF document text
    • https://kovepezerolozu.weebly.com/uploads/1/3/1/4/131483153/raboguzasuxumuk_pugug_xopiburofi.pdfIn PDF document text
    • http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/1624ec25c82693---vuketez.pdfIn PDF document text
    • http://donghobaoan.com/uploads/files/99155885170.pdfIn PDF document text
    • https://guehenno.kendalch.com/upload/files/ruredubelanonunonimaw.pdfIn PDF document text
    • http://xn--12ca5eb0atfbad4eh5ai1ef5bg6a8png.com/UserFiles/file/dewapozuvewuju.pdfIn PDF document text
    • http://capitolmetrophysicaltherapy.com/files/files/sejenepunejefoz.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0007e526.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0007e526.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0007e526.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E526 16796 bytes
SHA-256: 16d3e58c5d88e11b99c962398246ceb073c7070b8c1098e5e82fb3fc69696f97
font_01_sfnt_off00081037.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81037 11100 bytes
SHA-256: 674a89da91bd03a4417450cd6eb5b2ebfd75379518528de942936ea9d1d7b692
font_02_sfnt_off00082a27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82A27 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1