Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ed708005684579b…

MALICIOUS

PDF

85.1 KB Created: 2021-07-05 01:17:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-08-20
MD5: 0f57387079e7bc04df4cbefe81539a17 SHA-1: 410bf97d9b6d57010b4ada1b4b6134c6a333c88b SHA-256: 9ed708005684579b58cbd3733f974480255496b529b9298b60235be5630508fd
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains numerous links, many pointing to compromised WordPress sites or disposable domains, suggesting a link farm or phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or distributing further malware. The presence of multiple external URI heuristics reinforces the link-farming nature of the document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://masan315.net/board/imagefile/file/kugapanuda.pdf In PDF document text
    • http://ecole.ru/text/images/file/62728093063.pdfIn PDF document text
    • http://www.pianoszimmermann.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608012b62a912---99001588996.pdfIn PDF document text
    • https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c701405e5ca---godeju.pdfIn PDF document text
    • http://poorclarescork.ie/images/87281630025.pdfIn PDF document text
    • http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/160df25d58da94---wotisosawenazef.pdfIn PDF document text
    • http://anhbanglaw.com/userfiles/file/23007392559.pdfIn PDF document text
    • https://senzedigicraft.com/wp-content/plugins/super-forms/uploads/php/files/2a22f88642c361e23facb1dcf45f9350/kevogag.pdfIn PDF document text
    • http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b8a8b397412---xaxisorexawumazarusalijin.pdfIn PDF document text
    • https://www.prowallpanama.com/wp-content/plugins/super-forms/uploads/php/files/61e7b7f269d615c1056656098e9ac808/mopevoxasi.pdfIn PDF document text
    • https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/0158a985e54900c083e9761c6c59ca55/74893438509.pdfIn PDF document text
    • http://beiwendq.com//data/attachment/file/28051369618.pdfIn PDF document text
    • https://torgradio.ru/new/files/file/bobelej.pdfIn PDF document text
    • https://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608a9ea2b9e88---vawokopekadebogusasik.pdfIn PDF document text
    • http://appletechsolutions.com/userfiles/file/dulaligotexadirad.pdfIn PDF document text
    • http://plastikacz.cz/soubory/files/68913535196.pdfIn PDF document text
    • https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f4362be121---75377370748.pdfIn PDF document text
    • http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609473faa7ccd---36244837133.pdfIn PDF document text
    • http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16076656399a1a---visaper.pdfIn PDF document text
    • http://caramelitos.sk/files/putofukojuzateju.pdfIn PDF document text
    • http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608916ba595b4---napigavakalufasomevegiga.pdfIn PDF document text
    • https://sodigital.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b64de634e94---kafavakebej.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=beenie+man+king+of+the+dancehallPDF 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e73d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE73D 18060 bytes
SHA-256: 738318c02f18b3a681863254e0b843858b5beacca18e421149b8af0d4f303519
font_01_sfnt_off0001167e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1167E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012e95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E95 10800 bytes
SHA-256: 5b3da5b8250088ed9f37bb275369456465c0a3af71ba37b9cfcaed974924b97e

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