Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d8af9bbd011b8d7…

MALICIOUS

PDF

83.5 KB Created: 2021-08-16 12:32:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 6ef69f7acc5c4fa077dcdf4f95da3bd8 SHA-1: 210421a2e4863ae58e5ec3303802dbff7e77e306 SHA-256: 5d8af9bbd011b8d702ad4e7d32d992b1725367ee6f7322a4e05f9739a47be2bb
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9944

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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 http://daimarconstrucciones.com/images/admin/file/72815820038.pdf In PDF document text
    • https://www.americansummercamps.com/wp-content/plugins/formcraft/file-upload/server/content/files/160740e7778a6d---2398078643.pdfIn PDF document text
    • https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/c1f5933ad25a6b612b9d9a827a3aa5d4/peladiligadojuzabavigadod.pdfIn PDF document text
    • http://aire-limpio.com/img/editor/file/6611482280.pdfIn PDF document text
    • https://bravo-hk.com/userfiles/file/49972969705.pdfIn PDF document text
    • https://hsse.cl/files/ravipagagalalis.pdfIn PDF document text
    • http://harryreichert.de/uploaded_pics/News/file/zewixiditexobamilutoma.pdfIn PDF document text
    • https://mehreganimaging.ir/images/upload/files/94189648124.pdfIn PDF document text
    • http://keletunderground.hu/images/uploaded_pics/file/xowara.pdfIn PDF document text
    • https://almoheetmanpower.com/public_html/userfiles/file/73140561232.pdfIn PDF document text
    • http://sinproval.it/userfiles/files/xedorakowasedirevo.pdfIn PDF document text
    • http://rococosofa.com/files/files/9968191572.pdfIn PDF document text
    • https://mumegram.com/userfiles/file/nevafadajofojekojewawi.pdfIn PDF document text
    • https://www.esicm-old.org/admin/lib/ckfinder/userfiles/files/nuwoxepux.pdfIn PDF document text
    • http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bff77160e4c---37379555756.pdfIn PDF document text
    • http://www.gabrielamaciel.net/images/content/file/60530233154.pdfIn PDF document text
    • https://livre-art.com/ckfinder/userfiles/files/59475757695.pdfIn PDF document text
    • http://ecohouse-lab.de/userfiles/file/ponobok.pdfIn PDF document text
    • http://myshopekerala.com/userfiles/file/bolalobololizikudure.pdfIn PDF document text
    • https://alakharia.com/public_html/userfiles/file/2131508533.pdfIn PDF document text
    • http://berallebags.com/UploadFiles/FCKeditor/20210508090235.pdfIn PDF document text
    • https://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/1607de61e025ee---povevediduluxi.pdfIn PDF document text
    • http://files.ibiza-ferien.de/file/17100575916.pdfIn PDF document text
    • http://www.iamgoingto1996.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bad13eedff6---70132433766.pdfIn PDF document text
    • https://www.prestigeautobody.com.au/wp-content/plugins/super-forms/uploads/php/files/537feefad7f2b5ba8e875112d8c2e447/95622986538.pdfIn PDF document text
    • http://africareview.in/userfiles/file/rufedet.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=que+significa+orar+en+espiritu+y+verdadPDF link annotation
    • 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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e040.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE040 17200 bytes
SHA-256: 93e7a3a0010129e83181ac5bcf47a47455cabb9c1093c4458aecca1d4888b259
font_01_sfnt_off00010bd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BD7 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000123ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x123EE 11088 bytes
SHA-256: f8fb698a6aedd7f8592caabc651baa35bd6fe6f0c9aff1dd573e6224ded7159c