Malicious PDF — malware analysis report

Static analysis result for SHA-256 30eb1587817921e4…

MALICIOUS

PDF

70.7 KB Created: 2021-09-09 02:50:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23
MD5: 2a462feb1a1c71f38f7af723681237b9 SHA-1: bf2b8f978f64793af3708f8831af910c84685d6e SHA-256: 30eb1587817921e4498a7ca75ad7ab2e558e980d28bb3dbfd3c3895d13eaa740
204 Risk Score

Malware Insights

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

This PDF file contains embedded JavaScript and PRC/3D content, which are often used to exploit vulnerabilities or redirect users to malicious sites. The heuristics indicate it functions as a link farm, pointing to compromised WordPress uploads and disposable hosting, likely to obscure the true malicious destination. ClamAV detection as 'Pdf.Phishing.Trojan' further supports its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

Heuristics 8

  • PRC/3D content in PDF high CVE related PDF_PRC_3D
    PDF contains PRC 3D content. PRC/U3D parsers have been a recurring Adobe Reader attack surface; treat as a related parser-exploit indicator rather than a specific CVE match.
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://structurecreative.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f6ad45cd00---18162087569.pdf In PDF document text
    • https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/161363e81bb50d---90058524030.pdfIn PDF document text
    • http://mrs-edu.com/sribati/editor/uploadfiles/zukikesatukaguxujusumoful.pdfIn PDF document text
    • https://watertorens.nl/userfiles/file/mumorik.pdfIn PDF document text
    • https://implantologie-deva.ro/app/webroot/files/userfiles/files/vumupixedukamafenul.pdfIn PDF document text
    • http://gazomotor.com/allinone/file/tuligevo.pdfIn PDF document text
    • http://abwpetersburg.com/uploads/files/wukivamigemujoralakusovul.pdfIn PDF document text
    • https://unique-u.biz/images/uploads/file/83600423930.pdfIn PDF document text
    • https://trsbarriersdirect.com/wp-content/plugins/super-forms/uploads/php/files/uikm94qtberdemefgrtavu6jrl/wavafudewu.pdfIn PDF document text
    • http://unixsensor.com/uploads/files/202109060722326288.pdfIn PDF document text
    • https://bhiringisamsankalimandir.org/userfiles/file/xagive.pdfIn PDF document text
    • https://picinterior.com/ckfinder/userfiles/files/bemomemezotirevijosex.pdfIn PDF document text
    • http://majstrissmt.eu/www-data/file/96137313513.pdfIn PDF document text
    • https://corcreation.twbiz.me/data/fckeditor/files/20210901_135137.pdfIn PDF document text
    • http://westhollywood.ilovepokebar.com/uploads/files/xinofawaxutefeganegigi.pdfIn PDF document text
    • http://mondoacquapiscine.com/userfiles/files/34319747012.pdfIn PDF document text
    • https://haciendaloscipreses.cl/upload/file/bigumiten.pdfIn PDF document text
    • http://chagatea.ru/wp-content/plugins/super-forms/uploads/php/files/31e5ee3a20f9fd7ce8d326f32b6af8ca/nekefasovev.pdfIn PDF document text
    • http://shriramashramps.org/userfiles/file/42807608923.pdfIn PDF document text
    • https://viboot.com/ckfinder/userfiles/files/rivijilexukopaguv.pdfIn PDF document text
    • https://skillmapmagazine.com/ckfinder/userfiles/files/17821238236.pdfIn PDF document text
    • http://bilateralmatters.org/userfiles/file/35076658564.pdfIn PDF document text
    • http://capital96.com/userfiles/file/55133295180.pdfIn PDF document text
    • https://crbz.ru/userfiles/file/12228020762.pdfIn PDF document text
    • http://maduraicaterers.com/app/webroot/js/ckfinder/userfiles/files/nimogoxudivepusunabisebo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=hill+climb+racing+2+mod+iosPDF 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_off0000b77b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB77B 14792 bytes
SHA-256: 574f363f11c803a06748fcd5a0866766f23ec12ea248ddd2c75639285a10d2ef
font_01_sfnt_off0000dc73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC73 10736 bytes
SHA-256: 5406996b510baf4b3417233c0ed6587b5ecc4a33e17f695e7e39d1ffd8aec841
font_02_sfnt_off0000f4d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4D3 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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