Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5dd15d70b10c8cb…

MALICIOUS

PDF

78.1 KB Created: 2022-04-11 01:43:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-06
MD5: 4ca2e2e8a8df11657f6e8b57936c3f7b SHA-1: f8821ee9b186b92c1e9bbdbf0e6102762d094b5b SHA-256: b5dd15d70b10c8cb00deef99961996c7d5daaccb70813a0ba5b53f181d41329c
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://vapojulugib.weebly.com/uploads/1/3/4/6/134669528/gexepavawobo-rironixijuv.pdf In PDF document text
    • http://italiangreyhound.pl/img1/userfiles/file/52718262627.pdfIn PDF document text
    • http://loveconnets.com/newerac2c/userfiles/file/megoboxawenodipaxe.pdfIn PDF document text
    • https://siemens-rozetki.ru/kcfinder/upload/files/30186848867.pdfIn PDF document text
    • https://dugiwisevur.weebly.com/uploads/1/3/1/4/131437249/ee19cd8cae49a4.pdfIn PDF document text
    • https://www.alertgy.com/wp-content/plugins/super-forms/uploads/php/files/023e2d6197372980a860b1eee4742e69/22332330654.pdfIn PDF document text
    • https://fafefojesuvun.weebly.com/uploads/1/3/4/6/134651362/noziwikuxej.pdfIn PDF document text
    • https://fugejifok.weebly.com/uploads/1/3/4/1/134132056/japibuvuxivabo_sudutefitibiga.pdfIn PDF document text
    • https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/n2hk339it4eko4goaqs5l53acn/4792416077.pdfIn PDF document text
    • https://nazaxefuv.weebly.com/uploads/1/3/4/5/134589683/8834130.pdfIn PDF document text
    • https://mapazudisobamun.weebly.com/uploads/1/3/4/6/134604154/jawiwuvalaxe.pdfIn PDF document text
    • https://onlinendttraining.net/files/61608311486.pdfIn PDF document text
    • http://spiregene.com/image/files/20220402_232207.pdfIn PDF document text
    • https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1624053c2290b1---zerit.pdfIn PDF document text
    • https://gofubemasuxa.weebly.com/uploads/1/3/2/7/132712405/51a57ce3.pdfIn PDF document text
    • https://gadetuzajuvi.weebly.com/uploads/1/3/4/8/134850054/xusidagimewaxole.pdfIn PDF document text
    • https://xn--cabaasalquimia-tnb.com/uploads/files/guzesa.pdfIn PDF document text
    • https://tevav.co.za/YmrXLWy8?keyword=what%20country%20is%20the%20blind%20side%20on%20netflixPDF 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 extracted file (font_00_sfnt_off0000c8f0.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c8f0.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c8f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8F0 11024 bytes
SHA-256: 5093b23ae3c19d7f63d4b0a8cade759e3338955fa9a32cd8214c340a99ad402f
font_01_sfnt_off0000e28e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE28E 17608 bytes
SHA-256: 3fe97fa4b8b784bb1f0f2e3548a2982847f2c896af0cee58d29cbfe2db634f15
font_02_sfnt_off000110b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110B0 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1