Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa0e8eceb18d500c…

MALICIOUS

PDF

87.8 KB Created: 2021-08-05 00:16:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: 24775493240c12113bc0324cc0e063ae SHA-1: a185a61285c84be76f5ddea589de51ce76f828a1 SHA-256: fa0e8eceb18d500c11bad9f173e2b334cdbe5f21273fe59ec5cdf1fb1f2c0cb1
156 Risk Score

Malware Insights

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

This PDF file was identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It functions as a link farm, containing numerous URLs pointing to potentially compromised CMS upload directories. The primary purpose appears to be directing users to external, possibly malicious, content through a series of redirects and disposable hosting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9986

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16073c2e515c66---xefatamiputebonazepok.pdf In PDF document text
    • https://www.alapan.org/fckimages/file/tefesidezabobifolevevexat.pdfIn PDF document text
    • https://urbanplace.me/wp-content/plugins/super-forms/uploads/php/files/b3d549ac939afdbe179fda83bdcfcc41/kijelaninefijixilopodesav.pdfIn PDF document text
    • https://mattweidnerlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c21f2a5eeaf---pazowamozawinajagomuwa.pdfIn PDF document text
    • https://cortopolis.ar/userfiles/file/49909267957.pdfIn PDF document text
    • https://akapacha.com/userfiles/file/pamajuberikanidumig.pdfIn PDF document text
    • https://elpmarketing.ca/wp-content/plugins/super-forms/uploads/php/files/22e4f7f468bbd29c5c6278173095d4f1/betuvixojuzidatewexos.pdfIn PDF document text
    • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16085ebacb8e8c---44265652431.pdfIn PDF document text
    • https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/42ceede5e80b5922f4d9ca07012729b8/49480644545.pdfIn PDF document text
    • https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/aa5be6c1700c1816614edb4eacc66836/xavapixinonuzeluta.pdfIn PDF document text
    • https://kingwaterpure.com/ckfinder/userfiles/files/kozetekavoz.pdfIn PDF document text
    • https://diversified-nj.com/wp-content/plugins/super-forms/uploads/php/files/7dac9a22975058602aac3b531939154a/xavubi.pdfIn PDF document text
    • https://veritiesinstitute.com/wp-content/plugins/super-forms/uploads/php/files/1a20cbc7818f67f105362bec420f649e/tawuzuxij.pdfIn PDF document text
    • https://infrastone.com/userfiles/files/79553744441.pdfIn PDF document text
    • https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/16102d168ddbc4---valiwaxa.pdfIn PDF document text
    • http://deborahkay.com/ckfinder/userfiles/files/98408363095.pdfIn PDF document text
    • https://ever-progress.com/upload/files/58366455743.pdfIn PDF document text
    • https://nutrishop.in/ci/userfiles/files/pijededijeguxisoj.pdfIn PDF document text
    • http://daegyung.kr/userfiles/file/20210719080947.pdfIn PDF document text
    • http://csc025.com/userfiles/file/20210707002906_w6c9d5.pdfIn PDF document text
    • http://bestpokeya.com/uploads/files/sowigazaxoxobajiweva.pdfIn PDF document text
    • https://atx-stroy.ru/wp-content/plugins/super-forms/uploads/php/files/987c0acd0aed57482edc591f875f09f4/3930410697.pdfIn PDF document text
    • http://toddfamilyreunion.com/clients/4/48/482e924d5a052aa4a0c13eb8a30e0bc8/File/92270207330.pdfIn PDF document text
    • https://www.perfumista.co.uk/wp-content/plugins/super-forms/uploads/php/files/e7a72a8b5556eb9a70b85e0a2c4cd40e/49818830933.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=chello+divas+2+gujarati+full+movie+download+in+hdPDF 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_off0000f086.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF086 11336 bytes
SHA-256: 6ec851cd07123eb379bc55e9f1e0501ba034b62aaac3259a32d6e079ed41d99f
font_01_sfnt_off00010af3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AF3 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012305.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12305 17228 bytes
SHA-256: 7db1e78b46c90412c9aac683f93a2e960f84a20961621ca884f41a949418b555

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