Malicious PDF — malware analysis report

Static analysis result for SHA-256 00e7def107c8edcf…

MALICIOUS

PDF

145.4 KB Created: 2021-07-15 15:08:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-14
MD5: fedc781259f94a73b2b55cef0f5dafcd SHA-1: 4951f74e8af95a3fbb77f3e073f1433d28f1a09e SHA-256: 00e7def107c8edcf74ebfb0bd19336cf21cd6fbf9439dc4d40fcd910d6b7df32
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, suggesting a link farm designed to lure users to download potentially malicious files. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. No scripts were extracted, but the structure and URL patterns are indicative of a phishing or downloader campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9922

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 https://www.grecosalesinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b17c8e8f56---wuloxetosaguzatizesite.pdf In PDF document text
    • http://chapelguild.com/images/usr/25136422147.pdfIn PDF document text
    • https://bangprice.com/bangprice.com/beta/cms_image/file/vogegukagiko.pdfIn PDF document text
    • https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608504f7ba80f---18851635270.pdfIn PDF document text
    • http://regmac.net/userfiles/files/44853178595.pdfIn PDF document text
    • http://travelshops.pl/userfiles/file/xawamigowugasoxuz.pdfIn PDF document text
    • https://areicon.com/images/file/46389342477.pdfIn PDF document text
    • https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160b2a86dcd1f7---fuzuniwijuzegodubakarug.pdfIn PDF document text
    • http://beming.com/ressource/site-image/files/98307394617.pdfIn PDF document text
    • http://fcv-bo.org/data/fcv-bo/userfiles/file/subalum.pdfIn PDF document text
    • https://arzhosting.com/calisma2/files/uploads/93704406137.pdfIn PDF document text
    • https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b2d1f56b828---37630710798.pdfIn PDF document text
    • https://securityguardsupply.com/php/uploads/file/kemoximeteperamutibaz.pdfIn PDF document text
    • https://gym-rectif.fr/ckfinder/userfiles/files/96675353041.pdfIn PDF document text
    • https://maugli24.ru/wp-content/plugins/super-forms/uploads/php/files/e6a0bc116e58341f1d57b776da69ba2f/jelukevo.pdfIn PDF document text
    • http://tgtech-auto.com/userfiles/file/rusexofalemelu.pdfIn PDF document text
    • https://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607f5ccabd8fb---vinopinimatetajajugego.pdfIn PDF document text
    • http://kezmosas.hu/files/file/ligedipibojexesiwegolix.pdfIn PDF document text
    • http://fatamorgana.fr/uploads/assets/file/leneraxexojaxupuda.pdfIn PDF document text
    • http://bahattinburyan.com/userfiles/file/97125224540.pdfIn PDF document text
    • https://lakeshoresmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/u8ruef2it82lf6vkds6qkp86m4/86974633668.pdfIn PDF document text
    • http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607b1bebe5107---37699256014.pdfIn PDF document text
    • http://altelaw.com/uploads/image/file/214942157.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=harry+potter+and+the+philosopher%27s+stone+pc+download+windows+10PDF 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_off0001d489.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1D489 18488 bytes
SHA-256: 93b93313870d35bde3d9aee3657abaf5c217d3fb3a5a6db1432f980bd0d94511
font_01_sfnt_off000205c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x205C3 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00021dda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21DDA 11008 bytes
SHA-256: 504765d473f88bcd62defa98609aef6433af2ed4144531d56ae3198eeab61c0a

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