Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e2ce7eb8e9f4186…

MALICIOUS

PDF

62.3 KB Created: 2021-09-04 15:27:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: fd99b68ad2b06dda083c61d757f47868 SHA-1: 155f82f542d536fc07464010c5d22446e360bfbb SHA-256: 0e2ce7eb8e9f4186002f75ce47c5a7c19eca09c91de74e528ec660beac2b6191
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to compromised CMS uploads, suggesting a phishing or malicious redirection scheme. The ClamAV detection and ML classifier further support its malicious nature. While no scripts were directly extracted, the PDF structure and embedded URLs are indicative of a phishing lure designed to lead users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5156

Heuristics 5

  • 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
  • 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://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/27a89168ff64c186f4665e47f919038b/43141221156.pdf
    • http://furkansigorta.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160adb1578617e---zubag.pdf
    • http://www.slenderclub.cz/ckfinder/userfiles/files/22557508952.pdf
    • http://beckydavidsonhomes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9204777091---zotugovupibozazuwoxokil.pdf
    • http://hit-air.pro/ckfinder/userfiles/files/ruvuwasovafimu.pdf
    • https://precisionautoandac.com/wp-content/plugins/super-forms/uploads/php/files/178a807e26cb234c4e9839eddd7a5905/30312025019.pdf
    • http://mtntoproyalshihtzus.com/clients/4/42/42f4769cb4f2467af64fea76c5682520/File/81485050584.pdf
    • http://alacarte-grafik.de/userfiles/file/66467439697.pdf
    • https://www.plsok.com/wp-content/plugins/super-forms/uploads/php/files/018d10e465077b5051eaf4da1c44a3da/pubiwuxajigufesopagoveni.pdf
    • http://goergenpainting.com/clients/0/0d/0d1038892961fdbf96b6a8e7e8daca8f/File/54157250725.pdf
    • https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/8d8b2bf0df09cfdba02409b5c0ae3386/68525788123.pdf
    • http://co-mit.com/uploads/files/vuzapogaketavimusuxuzolu.pdf
    • http://austria-ex.com/images/blog//file/86441212557.pdf
    • http://pp-aqua.com/userfiles/files/40400820134.pdf
    • https://namastehealth.in/wp-content/plugins/super-forms/uploads/php/files/ahraupm2s022s9mb113a3m311r/tavimob.pdf
    • https://cmflower-kkc.com/ckfinder/userfiles/files/dososeruj.pdf
    • http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/c5d9f59e26e2b52902d95345c63fc813/sapoxa.pdf
    • http://ciba.lv/uploaded/file/riwazejuzomonolipo.pdf
    • http://sherwoodonionfestival.com/ckfinder/userfiles/files/18626273033.pdf
    • https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/07891d2bdc35aad0968e95d3c3f6ea02/9951990156.pdf
    • https://www.msolartop.cz/wp-content/plugins/formcraft/file-upload/server/content/files/16083ceb93e2d7---jojewijazegelewubat.pdf
    • http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/160b3589489104---52918521348.pdf
    • http://densayhongngoai.com/uploads/userfiles/file/85354823179.pdf
    • https://nailseasupportgroup.com/wp-content/plugins/super-forms/uploads/php/files/fd04ab02ae19cbd10c29c49a398a2452/pakamefefajatemorilojalem.pdf
    • http://www.miamiairportlimo.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608436413fc8a---97670132044.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=microsoft+office+word+2007+tutorial+pdf+free+download
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c329.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0xC329 16792 bytes
font_01_sfnt_off0000db40.bin
6835eb8e30bd128a35a9fdf6b3b2223a2ee30a3662c2a191bd66956881742768
pdf-font-stream PDF embedded font (sfnt) at offset 0xDB40 11084 bytes