Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe54fea5aded6daa…

MALICIOUS

PDF

91.5 KB Created: 2021-08-21 06:00:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: cd9b28fa854c6e673e45268d48f62e51 SHA-1: 2c9f7fa86cabc374e204381c2b573a0aa8ad44fd SHA-256: fe54fea5aded6daad5dad9f309a418fc71739ea39fa214e5047df3a058a413aa
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs that point to compromised websites and link farms, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document designed to lure users to external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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://garglob.ru/uplcv?utm_term=what+is+an+example+of+possibilism+in+human+geography PDF link annotation
    • https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b17fe39edbe---86609735958.pdfIn PDF document text
    • http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/16082139bd067f---wolawegomelo.pdfIn PDF document text
    • http://www.aportecnica.com/imagenes/editor/file/jijisawaxizimebemugewojo.pdfIn PDF document text
    • http://bestforfishing.com/wp-content/plugins/super-forms/uploads/php/files/8aee1628d3117615846cf328e8675eb7/fisafowuve.pdfIn PDF document text
    • http://superlitefan.com/uploads/files/43817296829.pdfIn PDF document text
    • http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/160921e5d560fa---31927189417.pdfIn PDF document text
    • https://minutesnap.com/wp-content/plugins/super-forms/uploads/php/files/22e0a19ea6275e75ed3f2d11760ca7b6/37653022829.pdfIn PDF document text
    • https://giga-tronics.com/userfiles/files/48382007992.pdfIn PDF document text
    • http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606f0ec419d20---9474037973.pdfIn PDF document text
    • https://www.azulejositurry.com/wp-content/plugins/super-forms/uploads/php/files/s4644scqs05rta5ncuqdsnsal1/74140472404.pdfIn PDF document text
    • https://szabobuszberles.hu/files/files/19883299127.pdfIn PDF document text
    • http://partnerplus30.ru/images/fornews/files/lakulidokosu.pdfIn PDF document text
    • https://torgradio.ru/new/files/file/budiwemo.pdfIn PDF document text
    • https://g-ortho.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160731ced64462---25503300027.pdfIn PDF document text
    • http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/160e6b3428bfa9---18749053779.pdfIn PDF document text
    • http://tjsijiqing.com/ckfinder/userfiles/files/2021/0714/f5c660f2af4d3dd5e1d2b33b49ed9088.pdfIn PDF document text
    • http://www.korayozelguvenlik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609cb47324b72---84917747230.pdfIn PDF document text
    • http://springswellness.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607f67ca8f784---negusaziveluweje.pdfIn PDF document text
    • http://schs1968.com/clients/861610/File/xozarafubafewalevozu.pdfIn PDF document text
    • https://www.asahinadigital.com/wp-content/plugins/super-forms/uploads/php/files/92dnju30gdri06sbdk07dlj0kh/wezozifazi.pdfIn PDF document text
    • http://xn--b1akwe.xn--p1ai/userfiles/file/balumedovijadijofi.pdfIn PDF document text
    • http://baugeraeteverleih.de/benutzerdateien/ferabupisilovegofoxobok.pdfIn PDF document text
    • http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/160857d4331a1a---2310807606.pdfIn PDF document text
    • https://nceptionsolutions.com/wp-content/plugins/super-forms/uploads/php/files/36a6564f19c479f8aed075243a58fc13/xanaparex.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_off0000faef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAEF 11252 bytes
SHA-256: c7116c4216933d072028d5e632835e8c1c81d0dec6836be486c190f453500d1d
font_01_sfnt_off000114ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x114EF 19652 bytes
SHA-256: 873881798b91ea120b87cca3c347c6098e9c26e6a3184597a00b12dd7042b0f4
font_02_sfnt_off00014705.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14705 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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