Malicious PDF — malware analysis report

Static analysis result for SHA-256 1919c5ff2d3f0bea…

MALICIOUS

PDF

75.3 KB Created: 2021-09-19 02:57:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: e429b6e2975c094b20e0eb9b7b268e2d SHA-1: 72142f06869e5c98dd6ac345ed7edb318bfdeed9 SHA-256: 1919c5ff2d3f0beaaea41939ea4308a0d0e40c5e2ff4f1665b09db4bec3db1f5
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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 https://nguyenhungstone.com/uploads/image/files/38530737950.pdf In PDF document text
    • https://cometsecurity.in/admin/userfiles/file/92426965629.pdfIn PDF document text
    • https://birudongker.com/contents/files/feruzapixakewexifas.pdfIn PDF document text
    • https://www.abandassociates.com/ckfinder/userfiles/files/xuguvadevoto.pdfIn PDF document text
    • https://virtrade.gr/userfiles_lybo/file/16220260148.pdfIn PDF document text
    • https://partetesal.ir/data/file/58085310383.pdfIn PDF document text
    • https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/25104482889322c76443a93fc8d2ccfb/37199032681.pdfIn PDF document text
    • https://nordiskvillaventilation.dk/userfiles/file/gopijetagirujozemulezega.pdfIn PDF document text
    • https://ecef-groupe.com/wp-content/plugins/super-forms/uploads/php/files/o8tfeik31dhqdkvv6u8anu9jn1/xefatozar.pdfIn PDF document text
    • https://www.babetravelling.com/ckfinder/userfiles2/files/worubidojavopudezugutum.pdfIn PDF document text
    • http://volareinmongolfiera.it/userfiles/files/72892751185.pdfIn PDF document text
    • https://gulamanis.com/contents/files/56843199611.pdfIn PDF document text
    • http://opuspointpartner.com/ckfinder/userfiles/files/65666307388.pdfIn PDF document text
    • https://yoimart.com/upload/file/20210912093729.pdfIn PDF document text
    • https://www.traitagri-solutions-alternatives.fr/ckfinder/userfiles/files/76728721697.pdfIn PDF document text
    • https://www.funes.gob.ar/ckfinder/userfiles/files/63405483267.pdfIn PDF document text
    • https://eniedu.com/data/file/20210912134713.pdfIn PDF document text
    • http://anpharma.net/upload/files/luvutitonojifepunagi.pdfIn PDF document text
    • http://gpp300.fr/userfiles/file/tejijeponaxiwuxodikoxemo.pdfIn PDF document text
    • http://f1-rennsimulatoren.de/userfiles/file/gelawugibakolug.pdfIn PDF document text
    • https://www.dynasil.com/wp-content/plugins/super-forms/uploads/php/files/f33016160356a3b1d122f67fc33b8e49/ronefiridisufananu.pdfIn PDF document text
    • http://cissud.com/uploads/ck_editor/files/fosokoseripuxukenawepar.pdfIn PDF document text
    • https://simondaulte.com/ckfinder/userfiles/files/pitirudidedazadipanij.pdfIn PDF document text
    • http://www.teaterskolen-efteruddannelsen.dk/ckfinder/userfiles/files/5697585854.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=certified+android+tv+vs+smart+tvPDF 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_off0000c502.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC502 16308 bytes
SHA-256: fafdc204948ed598d58c914a45ce1adb7f72911101968feee7cb8bf18ec7ef1f
font_01_sfnt_off0000eee4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEE4 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000106fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106FB 10564 bytes
SHA-256: 6529deecc62a0ceaa4884e1f3057cfb8db1a0150d312312f1715c945c1cdb07a