Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fc22cafe0193330…

MALICIOUS

PDF

217.7 KB Created: 2021-07-01 11:05:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: 2c27e6070cf41c9af0dac9c8161ee4db SHA-1: 252ced081698feccaca842c993413674436a3219 SHA-256: 6fc22cafe0193330a7e8d9fbbd639789bf3fc8fc9b70e9f0c0c9aefa6bbb5b8b
134 Risk Score

Malware Insights

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

The PDF contains multiple links to compromised WordPress sites, suggesting an attempt to host malicious content. The presence of a 'download' button heuristic further supports a lure-based attack pattern. ClamAV detection and ML classification confirm the malicious nature of the file, likely a phishing or trojan delivery mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9819

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://www.lang-mayer.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c04991e6f7d---jaweko.pdf In PDF document text
    • http://www.melodypods.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b7b555479d---44065839021.pdfIn PDF document text
    • https://www.vbclighting.com/wp-content/plugins/super-forms/uploads/php/files/b4c51a6f286c33547fd4c4130d10ee9f/xasijodopovewapaxojop.pdfIn PDF document text
    • http://www.etoiles-recrutement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607de9f630af9---pufivaresizixasizad.pdfIn PDF document text
    • http://for-rent-antwerp.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c249be24a88---pibazegitasi.pdfIn PDF document text
    • http://fedime.org/imagenes/61633580109.pdfIn PDF document text
    • http://gintaras.cz/userfiles/file/10717526943.pdfIn PDF document text
    • http://wsp.pl/userfiles/file/mapazemis.pdfIn PDF document text
    • http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b3f8ad8ce18---91617791928.pdfIn PDF document text
    • http://berrybucs1973.com/clients/3/3a/3a2d6910be1067feaf6dc79f90d505e0/File/bigapovibogavusin.pdfIn PDF document text
    • http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160716f870add2---zosunoketidigawan.pdfIn PDF document text
    • http://www.associatedomains.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607689683048d---dilivulapire.pdfIn PDF document text
    • https://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/85b192ec4785d088bba0d8e6bfbd6798/wipetuzuxidorixufok.pdfIn PDF document text
    • http://ahlhy.com/uploads/file/040610163583.pdfIn PDF document text
    • https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2a2dcaf367---maxamubegusux.pdfIn PDF document text
    • https://jordanadams.com/ckfinder/userfiles/files/85238882000.pdfIn PDF document text
    • https://miguktour.com/FileData/ckfinder/files/20210611_D35F10E11CFBFC3B.pdfIn PDF document text
    • http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/i7v8crkglpi410ehp0m74gnqc5/2329782115.pdfIn PDF document text
    • https://luxmarketing.agency/wp-content/plugins/super-forms/uploads/php/files/t43ell3k8cismdvttf3ac4b9t7/32985860498.pdfIn PDF document text
    • https://pfhotel.gr/ckfinder/userfiles/files/12726292298.pdfIn PDF document text
    • https://kurek-rowery.pl/user_pict/file/golagijubodurum.pdfIn PDF document text
    • https://vuaship.com/wp-content/plugins/super-forms/uploads/php/files/0ur27rd1m4q8hh179gaag1m5o3/48218659632.pdfIn PDF document text
    • http://adoriantarla.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160701c3ea74f7---zanekojepurezufokiwu.pdfIn PDF document text
    • https://lescourailleurs.com/upload/editor/file/14550639271.pdfIn PDF document text
    • https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/fe62ebd18f40e0991d80a04b20bba535/gaviwinexesoj.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=cell+biology+book+by+verma+and+agarwal+pdf+free+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_off0002ef63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EF63 19672 bytes
SHA-256: 8e531e3ce0a6476273828fb6ecfa0898a3f00c2e83972ec89f8176f06cd8f227
font_01_sfnt_off00032493.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32493 11104 bytes
SHA-256: c3b457a739f0e416115581e5a401248edd2992a122a081877243d027fd30da2c
font_02_sfnt_off00033e19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33E19 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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