Malicious PDF — malware analysis report

Static analysis result for SHA-256 014ca2b0fecf5a75…

MALICIOUS

PDF

75.8 KB Created: 2021-09-16 22:48:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23
MD5: 9ec802ad6740d197becc62195e2f63ef SHA-1: 98af18d83b267682c2e5cb22c4344ead9561f007 SHA-256: 014ca2b0fecf5a75c89af1f708beaf831ed27381338bb2606ef46ff16bf9dd38
156 Risk Score

Malware Insights

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

The PDF contains a link farm pointing to numerous external URLs, several of which are hosted on compromised WordPress sites. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The file's structure and URL patterns suggest it's designed to lure users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9840

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://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/607a4c1ce438485d21d5f6f6b59b8903/96146285014.pdf In PDF document text
    • http://jtylek.pl/Upload/file/8216765381.pdfIn PDF document text
    • https://mujeresenmovimientoplus.com/userfiles/file/34049629993.pdfIn PDF document text
    • http://stihoplet.by/upload/editor/files/vupodabopamota.pdfIn PDF document text
    • https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/161412624ab9fa---79051861979.pdfIn PDF document text
    • http://twfindia.in/userfiles/files/balufuwimu.pdfIn PDF document text
    • http://xn--b1adbbbaeqjtsflbfms0e.xn--p1ai/pict/file/sikewowati.pdfIn PDF document text
    • https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/e6a0da96b6c324e8daf407cdb182e5a0/renotinakiponine.pdfIn PDF document text
    • https://ivanamihic.com/files/72488254684.pdfIn PDF document text
    • https://mmtours.si/uploads/89974265112.pdfIn PDF document text
    • http://zhongjiukeji.com/upload_fck/file/2021-9-1/20210901200707579542.pdfIn PDF document text
    • http://coaching-scolaire.net/userfiles/file/vubiravinipowes.pdfIn PDF document text
    • http://superfishinglewood.com/uploads/files/simakaxowedam.pdfIn PDF document text
    • https://movie2book.com/userfiles/file/18343903365.pdfIn PDF document text
    • http://benetalent.com/upload/files/70695758586.pdfIn PDF document text
    • https://pixel.bg/img/file/datalubobexukokezun.pdfIn PDF document text
    • http://klick-tipp.info/ckfinder/userfiles/publics/files/sufuzifadalapexesutagifuk.pdfIn PDF document text
    • http://tunesistudio.eu/userfiles/files/2648840794.pdfIn PDF document text
    • https://fatheragneliti.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142b6370635a---ronizifomibuwugut.pdfIn PDF document text
    • http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135a2f48d2b8---mugofadevafupug.pdfIn PDF document text
    • http://antasboru.com/guvennet/resimlerfiles/37478995793.pdfIn PDF document text
    • https://anthonygillant.com/userfiles/file/juniwasopadaralome.pdfIn PDF document text
    • http://mehmetrasimmutlu.com/icerik/file/14401006313.pdfIn PDF document text
    • http://www.eurosecurimed.com/ckfinder/userfiles/files/39920182414.pdfIn PDF document text
    • https://liepasmuiza.lv/userfiles/library/vinajevewupamaxafuxebuma.pdfIn PDF document text
    • https://activepymes.com/pub/file/kidutofupavesidepujimo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=sm64+music+downloadPDF 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_off0000c32e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC32E 10708 bytes
SHA-256: 4ed0a7ea63f524a74de13fca3629c73aada11e6600bd7350a41f4228fda3310a
font_01_sfnt_off0000dbcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBCF 17580 bytes
SHA-256: 15aa946db992f92f006150749d9932beba8f4544b8310caa949fcf2074b3e223
font_02_sfnt_off000109c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109C3 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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