Malicious PDF — malware analysis report

Static analysis result for SHA-256 714feefabbbbfcde…

MALICIOUS

PDF

85.9 KB Created: 2021-08-19 22:36:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: 88c7174d5f14a1f85205c3b574ecdaf2 SHA-1: 19f4d0ee4733b91c266260f551d3efdd031add2c SHA-256: 714feefabbbbfcdeb6421b444f546667cbcc7fc0eb5442f8dcd04193bb391300
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file was identified as malicious by ClamAV and an ML classifier. It functions as a link farm, containing numerous URLs pointing to compromised WordPress sites. These links are likely intended to lead users to phishing pages or download further malicious content. The document body is heavily obfuscated and does not provide direct user-facing text, but the presence of many external URIs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic strongly indicate a malicious intent to redirect users.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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 https://pixomot.ru/uplcv?utm_term=star+wars+the+force+awakens+book+and+magnetic+playset PDF link annotation
    • https://ipcare.nl/wp-content/plugins/super-forms/uploads/php/files/0nq053pcmopehsiipb8m8jv575/bizafotevakedo.pdfIn PDF document text
    • https://grafitpoint.ru/wp-content/plugins/super-forms/uploads/php/files/0b92c8b12eca92712904e77d8113d309/lidosabi.pdfIn PDF document text
    • https://studiogreenwich.ru/wp-content/plugins/super-forms/uploads/php/files/084c9ad4385288b4d47fcaee9c9b0212/kinaxudaxug.pdfIn PDF document text
    • https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/cd7189a27e44bfdb13e2b0c261d68e12/70041271994.pdfIn PDF document text
    • http://madiagranitosilano.it/userfiles/files/80848446066.pdfIn PDF document text
    • http://chieusangducphat.com/uploads/userfiles/file/mepoto.pdfIn PDF document text
    • http://rcot.by/pics/files/raxufugajumo.pdfIn PDF document text
    • https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b2343c92aee---zosijesumuranid.pdfIn PDF document text
    • https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160b093b98ecb6---58976609609.pdfIn PDF document text
    • https://www.kbstephens.com/wp-content/plugins/super-forms/uploads/php/files/525d00796644b7e5fa11ce4bc263f0b3/tugenajavabebixuk.pdfIn PDF document text
    • https://www.hausbootgeiseltalsee.de/wp-content/plugins/super-forms/uploads/php/files/akdau05chqb4hl8n8m48oupsrj/54219000313.pdfIn PDF document text
    • https://chetanaus.org/bheru/uploadfiles/file/71484866872.pdfIn PDF document text
    • http://gruppocinofilomarsalese.com/userfiles/files/ligonu.pdfIn PDF document text
    • http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608cb8d759c02---93557664857.pdfIn PDF document text
    • https://childconcern.in/trila/userfiles/file/bajuvexaxevobiw.pdfIn PDF document text
    • http://doverhighschoolhalloffame.com/clients/2/2d/2d76883e1086210ef8e2c43836b0327f/File/87959300571.pdfIn PDF document text
    • https://z87992961.com/upload/files/20210730174455.pdfIn PDF document text
    • http://quartierdete.fr/uploads/fckeditor/file/tumemosinixavol.pdfIn PDF document text
    • http://pvsystreports.com/wp-content/plugins/super-forms/uploads/php/files/d49tcae0fk18d46t7rr8pk6vp4/34161345513.pdfIn PDF document text
    • http://marcth.pl/media/fck/file/74938377302.pdfIn PDF document text
    • http://www.lavalledesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f057754bf2d---47109151200.pdfIn PDF document text
    • https://www.jaegeraviation.com/ckfinder/userfiles/files/tasasodaxiwonijo.pdfIn PDF document text
    • 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_off0000e74f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE74F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000ff61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF61 18040 bytes
SHA-256: da54eb622d3b26d46c3ef736c43bc4a3b4c8531879692b6b2c56e95ca4fe4ec9
font_02_sfnt_off00012e69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E69 11572 bytes
SHA-256: 9cb1f441f28271a225aae04f500fc09f23ab969b4d1c910f1a0611561e1a1d44

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