Malicious PDF — malware analysis report

Static analysis result for SHA-256 17292597ffd2a5de…

MALICIOUS

PDF

89.8 KB Created: 2021-09-08 02:07:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: e040bf993a09e6b11740bd5d6901a795 SHA-1: c313627a5a34aeefb3ba4029ff957a97e34330d3 SHA-256: 17292597ffd2a5ded2ee2d84ab6648668e57db92c72bdaae240987c38933ca46
164 Risk Score

Malware Insights

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

The PDF contains embedded JavaScript and numerous links pointing to compromised WordPress upload directories, indicating an attempt to host malicious content. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' strongly suggest this document is part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection further confirm its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9913

Heuristics 7

  • 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://www.onekaddy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae459423db1---78754386052.pdf In PDF document text
    • http://cesurmakina.com/userfiles/file/84473600739.pdfIn PDF document text
    • http://izumrud38.com/ckfinder/userfiles/files/gosovemeno.pdfIn PDF document text
    • http://titibbs.xyz/js/ckfinder/userfiles/files/5611301812.pdfIn PDF document text
    • http://thegioimaychaybo.com/app/webroot/uploads/files/57212802212.pdfIn PDF document text
    • http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/160daaaf35b585---90878231779.pdfIn PDF document text
    • http://jingluo.net/uploadfiles/files/vesopegitumanaxoj.pdfIn PDF document text
    • http://polletnv.be/uploads/files/99447472055.pdfIn PDF document text
    • http://bgindus.com/t/tutorfirm/uploads/ck/files/jijumek.pdfIn PDF document text
    • http://studioriboldi.eu/userfiles/files/galezetiredukaver.pdfIn PDF document text
    • http://dyglas.com/userData/board/file/93102667364.pdfIn PDF document text
    • https://hmv.ir/wp-content/plugins/formcraft/file-upload/server/content/files/1608f09374c605---tulileresewiwerofaluximi.pdfIn PDF document text
    • http://creptiles.dk/userfiles/file/39977547350.pdfIn PDF document text
    • http://strategie-online.net/catalogue_dynamique/file/97942866434.pdfIn PDF document text
    • https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/806e36c909ca65cf86a0afe36e4776ee/21922939533.pdfIn PDF document text
    • https://bgg.pirkitpadangas.lt/ckfinder/userfiles/files/31660934098.pdfIn PDF document text
    • http://xn--b1afklwjc5g.xn--p1ai/ckfinder/userfiles/files/xizofegakexepakebegakaf.pdfIn PDF document text
    • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/ueeeiadba5vj6tt87fdr46e5mh/vizeriwowofesazogekekasus.pdfIn PDF document text
    • https://ngonluathan.com/images/ckeditor/files/98865409012.pdfIn PDF document text
    • http://safeabortionnepal.com/userfiles/file/gotugiwuwopig.pdfIn PDF document text
    • https://ovalpolycoats.com/media/76188281504.pdfIn PDF document text
    • http://psychologkmalinowska.pl/ckfinder/userfiles/files/82589242198.pdfIn PDF document text
    • https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607222eedcd01---70583326664.pdfIn PDF document text
    • http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c86afe62347---12726539641.pdfIn PDF document text
    • https://migger.dk/userimages/file/tojawuminovukibo.pdfIn PDF document text
    • http://himalayakebab.com/shipinc/userfiles/files/nawijurirakevejaguzu.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=homelabs+portable+ice+maker+machine+for+countertop+manualPDF 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_off0000f7f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7F7 18460 bytes
SHA-256: 2840f3c81b3d615c35df243480a772994504f1664895aee43275159d35ff19cf
font_01_sfnt_off00012776.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12776 11068 bytes
SHA-256: 8c4db34410ee3b24a274bcf10cae7862dd2f0c0b89ac23a0a663fb4f80b04618
font_02_sfnt_off000140c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x140C7 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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