Malicious PDF — malware analysis report

Static analysis result for SHA-256 9410ce7a28c915f8…

MALICIOUS

PDF

78.8 KB Created: 2021-06-09 23:50:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-12
MD5: 26b5ea604922c89e3bd6ca07ac2d94c5 SHA-1: 4fb11847563b8ee663179d81f313693c4f08cd09 SHA-256: 9410ce7a28c915f80601a168c34ec28f2faf5728605c81dd1dc64cfa111142fa
176 Risk Score

Malware Insights

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

This PDF file is classified as malicious by ML and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links to compromised WordPress sites, suggesting it's part of a phishing campaign to distribute malware. The document body, though heavily obfuscated, contains references to 'freedome vpn premium mod apk', likely a lure to entice users to download the malicious PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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://coretry.ru/uplcv?utm_term=freedome+vpn+premium+mod+apk PDF link annotation
    • http://zawayakw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ef351b1c8e---82841234739.pdfIn PDF document text
    • http://allaboutdowney.com/userimages/26038289715.pdfIn PDF document text
    • http://portalcom-b2b.es/img/user///file/_0482150001619846128.pdfIn PDF document text
    • https://www.hotwaterfactory.com.au/wp-content/plugins/super-forms/uploads/php/files/7e35812d3898e7018885336d3dfe616c/fivodatovononofa.pdfIn PDF document text
    • https://syntellect.ru/Repository/file/78019427748.pdfIn PDF document text
    • http://79.170.40.182/boothtastic.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608448fe8ca4f---jujujudesarusowelolodoz.pdfPDF link annotation
    • http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607dda027b334---xejuk.pdfIn PDF document text
    • https://blueridgelightingandcontrols.com/wp-content/plugins/super-forms/uploads/php/files/3c7438548710421cc149f4b056b85ddc/61394210625.pdfIn PDF document text
    • http://jrmhandling.nl/upload/file/bixonud.pdfIn PDF document text
    • http://gloria-eurex.com/lojadib.pdfIn PDF document text
    • https://akarchlight.com/wp-content/plugins/super-forms/uploads/php/files/9d5322ca9abf3beca2f4ed155492e12f/wologubamarurarusufijibo.pdfIn PDF document text
    • https://www.chartsunlimited.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/160b5b40f1e584---94819128720.pdfIn PDF document text
    • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1608928d37bbed---depuwifuwa.pdfIn PDF document text
    • http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609b61e653c10---88143173956.pdfIn PDF document text
    • http://generaltubi.com/container/ckfiles/files/25729245807.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://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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e7ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7BA 4776 bytes
SHA-256: 7c577bcb4566fa33df649df2a6d09b2c85025b9c03598c7ad26e2f4bd9158590
font_01_sfnt_off0000f7d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7D8 12504 bytes
SHA-256: 27cfcc489abc9f30b8a67646ccdcc680f4a60dd12c1efd0d345ea13a08249eeb
font_02_sfnt_off00012062.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12062 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3