Malicious PDF — malware analysis report

Static analysis result for SHA-256 32ca6ecb206568a7…

MALICIOUS

PDF

72.1 KB Created: 2021-09-05 17:50:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: fea5c72de8cc99ae44dff3ca77d7b985 SHA-1: 652b094e4cb291ea9adc705d71f78195f72ce5db SHA-256: 32ca6ecb206568a70c040de5cbaa4ebeb0bd63a9b65a2110ab87d25ef0bafeaa
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of links, many pointing to potentially compromised WordPress sites, indicating a link farm designed to lure users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were directly extracted, the PDF structure and embedded URLs are indicative of a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9893

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://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081afdb821c9---limutu.pdf In PDF document text
    • http://www.southforconstruction.com/frontend/web/ckfinder/userfiles/files/6301741801.pdfIn PDF document text
    • http://geodez.com/pliki/file/71835641711.pdfIn PDF document text
    • http://citescolairedeledit.com/include/file/genakafe.pdfIn PDF document text
    • https://tractorpulling-emmeloord.nl/upload/file/tijudotimazub.pdfIn PDF document text
    • http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/160863fe082952---34206006340.pdfIn PDF document text
    • https://zanhotel.ro/beficientconsultingFiles/file/mixeb.pdfIn PDF document text
    • https://protradingindia.net/userfiles/file/gonawefalipiposemabeluned.pdfIn PDF document text
    • http://fsoa.cn/userfiles/file/95065485316.pdfIn PDF document text
    • https://ecef-groupe.com/wp-content/plugins/super-forms/uploads/php/files/vir9ko6q3ki2c489gthq10lbr7/tavoxelomorerix.pdfIn PDF document text
    • http://urduhadith.org/survey/userfiles/files/jejizi.pdfIn PDF document text
    • http://abwingscolley.com/uploads/files/bidiwexejota.pdfIn PDF document text
    • http://xn--80akij1ajew.xn--p1ai/wp-content/plugins/formcraft/file-upload/server/content/files/1610fae26b6ed6---resavafobov.pdfIn PDF document text
    • https://askisan.com/upload/ckfinder/files/xumetivewulokej.pdfIn PDF document text
    • http://gymostrov.org/gymostrov/userfiles/file/15411981116.pdfIn PDF document text
    • https://www.thecandystoresudbury.com/wp-content/plugins/super-forms/uploads/php/files/lqdna5sid2urgterc0upqr20st/68492059939.pdfIn PDF document text
    • http://hattrick-sports.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094c3ae45aaf---84980228031.pdfIn PDF document text
    • https://skazkavdom.com/wp-content/plugins/super-forms/uploads/php/files/ffdad795ae364bf5384e6dde57cb9d98/23362445839.pdfIn PDF document text
    • https://trinityautorepairs.com/uploads/files/30574394686.pdfIn PDF document text
    • http://vejwun.cz/images/67567597297.pdfIn PDF document text
    • http://hitecds.com/userfiles/file/popagewidesuxanenoso.pdfIn PDF document text
    • https://clickbox.ro/images/file/41224506185.pdfIn PDF document text
    • http://mp-journal.com/media/file/sebug.pdfIn PDF document text
    • http://scoutpate.com/userfiles/file/zedamikamox.pdfIn PDF document text
    • http://cokhiminhhien.com/media/ftp/file/8470924792.pdfIn PDF document text
    • https://grupo-kayros.com/userfiles/file/98991554955.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=lan+cable+color+code+pc+to+switch+pdfPDF 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_off0000b828.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB828 16056 bytes
SHA-256: c07274e9f78e94b76831babf0bdbca4ab7d8e976b11f900ae090d20d09654152
font_01_sfnt_off0000e168.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE168 10900 bytes
SHA-256: 88eae98b7002131a29d7cd36754db0dd94b17d02f16b481346b74c07d40fae07
font_02_sfnt_off0000fa6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA6C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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