Malicious PDF — malware analysis report

Static analysis result for SHA-256 557860617906ec76…

MALICIOUS

PDF

82.6 KB Created: 2021-07-12 17:27:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: e680e4f1ff73442e0cfd1732e1e81c60 SHA-1: 3a1c638bbe178d2185dd1bce264d48da15d967b1 SHA-256: 557860617906ec76951810e7c25a78d2027d429a0e8f9a2d4ce835aa1951ff0e
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document is classified as malicious and exhibits characteristics of an advance-fee scam, likely involving fake prizes or funds requiring delivery details. The document contains numerous external links, many pointing to compromised WordPress sites, suggesting a link farm used to distribute malicious content or redirect users to phishing pages. While no scripts were explicitly extracted, the presence of PDF-specific heuristics and the ML classifier's high confidence indicate a deliberate malicious intent, likely involving exploitation of PDF vulnerabilities or social engineering.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

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
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://oniceh.ru/uplcv?utm_term=letters+ending+with+e PDF link annotation
    • https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073adee8da65---dixiwewivedofe.pdfIn PDF document text
    • http://msamericapageant.com/clients/873634/File/50798019760.pdfIn PDF document text
    • https://morabia.fi/images/file/risixad.pdfIn PDF document text
    • https://www.chesapeake-lighting.com/wp-content/plugins/super-forms/uploads/php/files/58765349362469a2ee2f0feb05586968/repixifazeseje.pdfIn PDF document text
    • http://www.festivalmarrakech.info/wp-content/plugins/formcraft/file-upload/server/content/files/1609896395232f---disimotin.pdfIn PDF document text
    • http://vorne-sitzen.eu/pcms/content/file/10692736377.pdfIn PDF document text
    • https://flvirginia.com/wp-content/plugins/super-forms/uploads/php/files/42a9a44a55df8b261c80d744b46dc7c7/lubavapufewijifiwunet.pdfIn PDF document text
    • https://neavocats.com/wp-content/plugins/super-forms/uploads/php/files/80b89db48eb3d4db8f0a610b6e39b8db/jijotusetudukakibuf.pdfIn PDF document text
    • http://bhhangkhong.com/upload/images/files/86426073921.pdfIn PDF document text
    • http://alternativefitness.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606d16d49f0a6---40611589027.pdfIn PDF document text
    • http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/160c1b8670855a---petulavibapimibomidaf.pdfIn PDF document text
    • http://loaamtran.vn/files/usersfiles/files/34740237441.pdfIn PDF document text
    • https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/2f35d5620f9b3d803649f08c9a49962e/zefawisuse.pdfIn PDF document text
    • https://dispomydeal.com/wp-content/plugins/super-forms/uploads/php/files/d4e2890b768bd01d4591876ab796371c/gowirasel.pdfIn PDF document text
    • https://xn----8sbcehyodmtf1czh.xn--p1ai/userfiles/file/30547291670.pdfIn PDF document text
    • https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073b1d7ceb0f---nanekenuzol.pdfIn PDF document text
    • http://kibbkw.com/uploads/file/67430489735.pdfIn PDF document text
    • https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/df25b960d0c1b74abfdc68f07d0f6c8d/16637878817.pdfIn PDF document text
    • http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160883562150a4---xawadebiladuvelosogunud.pdfIn PDF document text
    • https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd8d6750bee---nitugoxomudivovuxikar.pdfIn PDF document text
    • http://tele-video.ru/upload/files/buweziwotimojesikorewab.pdfIn PDF document text
    • http://andreaslasnik.com/data/files/tinoxakiloduvefuginopuva.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 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_off0000e22d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE22D 17000 bytes
SHA-256: 5ec5bc93305bb0363717e6550c94702fa1446713dc8e0136bf35fb95a017e049
font_01_sfnt_off00010e7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E7C 10240 bytes
SHA-256: 70d96540e1660c7b924acc1e76818bc4f9118ecff3fa7c7a40fdf8ac8d6a236e
font_02_sfnt_off00012540.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12540 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

Open this report in the interactive analyzer, or submit your own file for analysis.