Malicious PDF — malware analysis report

Static analysis result for SHA-256 2246117333d4421a…

MALICIOUS

PDF

74.4 KB Created: 2021-07-08 12:44:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-14
MD5: 7005779fe6d6f00f6719c29c66a9603a SHA-1: 50863f7b7b78866261f2d8b186fa4eba144fe882 SHA-256: 2246117333d4421a7bcc79e8487e8002d396f9c9e1c577eb3bdf73a5340c4a36
176 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including ClamAV detection and an ML classifier. It contains numerous links pointing to compromised websites, some of which are hosted on disposable domains or use IP address literals, indicating a likely phishing or malware distribution scheme. The presence of embedded URLs and the nature of the heuristics suggest the PDF is intended to redirect users to malicious content, potentially exploiting vulnerabilities or attempting credential theft.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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://biorenta.lt/ckfinder/userfiles/files/jiropatugegorewenuzujox.pdf In PDF document text
    • https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/c6e438b2f8b6b18e73f6e0718b7bab60/dikudarunebazafe.pdfIn PDF document text
    • http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609eb926ac456---84564959512.pdfIn PDF document text
    • https://planet-for-events.de/userfiles/file/pezalazerelozonupibejaxav.pdfIn PDF document text
    • https://www.wikiwebagency.it/wp-content/plugins/super-forms/uploads/php/files/1f575b4523a310308a81a42f4b0562f8/vawabufifu.pdfIn PDF document text
    • http://jagatjyotischool.org/jagatjyotischool/userfiles/file/larojipakumasobifuragi.pdfIn PDF document text
    • https://vinisfarm.com/wp-content/plugins/super-forms/uploads/php/files/9dff11703d2312d8c014fbc7d1e09207/toroselivanud.pdfIn PDF document text
    • https://akproauto.com/nbloom/fckuploads/file/rasolabezuw.pdfIn PDF document text
    • http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/160951a2d1ee26---nowaza.pdfIn PDF document text
    • https://howardsteeves.com/wp-content/plugins/super-forms/uploads/php/files/9dbb4310d9f4fe139e08908191c08484/nuwatawogadagifojokeru.pdfIn PDF document text
    • http://mouaumfb.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607103281c6ed---jiliserewefijudesapidi.pdfIn PDF document text
    • http://ohsongpharm.com/ckfinder/userfiles/files/gonavilibemitoz.pdfIn PDF document text
    • http://kleinschaden.expert/userfiles/file/buretuse.pdfIn PDF document text
    • https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/621c9176f5d20cea9eb76a242d5b2de9/xelulixilata.pdfIn PDF document text
    • https://feriaesotericadeatocha.com/wp-content/plugins/formcraft/file-upload/server/content/files/160870442dde3c---13237342059.pdfIn PDF document text
    • http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1608b54e287b3a---38888503258.pdfIn PDF document text
    • http://veterinariomauracotti.it/userfiles/files/60315225368.pdfIn PDF document text
    • http://79.170.40.182/boothtastic.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be17f457afc---zimarod.pdfPDF link annotation
    • https://www.arphplumbing.co.uk/wp-content/plugins/super-forms/uploads/php/files/2ugce45osr69pka4lu8i3e5qnv/sirowomavedili.pdfIn PDF document text
    • http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/1be61r5u0koa58nfge8nfrmn92/mupezumewixetifi.pdfIn PDF document text
    • http://www.niziointerior.pl/upload/file/zegejarasipupulux.pdfIn PDF document text
    • http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/3f4599840bd1a526e443ed995865281d/kexiberokukofuku.pdfIn PDF document text
    • https://mfdesign.hu/files/file/35250347095.pdfIn PDF document text
    • http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098e2328c7b2---41277686681.pdfIn PDF document text
    • https://patriot.ch/wp-content/plugins/super-forms/uploads/php/files/b8nikkqjef31frc8ols1d9f2eb/50518888213.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=sarcastic+meaning+bengaliPDF 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bfb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFB9 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000d7d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7D0 10668 bytes
SHA-256: b3374cb03251ad47b3a24cad1ca9cc4bc37dc2fe3a0d861ac9a89a26086972a0
font_02_sfnt_off0000f036.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF036 17204 bytes
SHA-256: e7ed07c153599afe44b51a440fcbd91ea10cd89e82b4cd9f5ab669221111ab34

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