Malicious PDF — malware analysis report

Static analysis result for SHA-256 292f224be44c5af4…

MALICIOUS

PDF

124.9 KB Created: 2021-09-01 20:48:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: ddead17a5055d38f082ccd6c52608925 SHA-1: e2baa190f300ed0fcdc51522cc6c3634a7708307 SHA-256: 292f224be44c5af415cb9ad197ee1e6602f1cb7ab9e39555d99e7db35c65c102
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous external links, many pointing to compromised WordPress sites, suggesting a phishing or malware distribution campaign. The ClamAV detection as 'Pdf.Phishing.Trojan' strongly indicates malicious intent. While no scripts were explicitly extracted, the PDF structure and link farm behavior are consistent with attempts to lure users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5183

Heuristics 5

  • 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
  • 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://archism.ru/uplcv?utm_term=asl+sign+for+have PDF link annotation
    • https://mithermomix.com.mx/wp-content/plugins/super-forms/uploads/php/files/b47a7766bbefd9f06fe28d6dc37dbb6c/maxevofikaz.pdfIn PDF document text
    • https://www.ideaklinikkadikoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0605e16dcd---mepefuzaxinupokeli.pdfIn PDF document text
    • https://winston-woodward.com/wp-content/plugins/super-forms/uploads/php/files/56b9baae9b23dc0a5a0061e78b6f40a1/maxuvapi.pdfIn PDF document text
    • http://mtcnx.com/upload/fckimagesfile/16087199795.pdfIn PDF document text
    • http://bosch-elektronarzedzia.pl/catalog/file/94791072934.pdfIn PDF document text
    • http://eortak.com/img/fck_temp/file/zitabu.pdfIn PDF document text
    • http://bayernglobal.de/userVZ//file/kiribebibaxaramamala.pdfIn PDF document text
    • http://cutyoursupport.com/userfiles/file/dogojuvanog.pdfIn PDF document text
    • http://szkolaprzybranowo.pl/ckfinder/userfiles/files/30642589555.pdfIn PDF document text
    • http://autosklo.sk/pictures/file/4544058496.pdfIn PDF document text
    • http://autosklo.sk/pictures/file/gesunogeruxowirogixi.pdfIn PDF document text
    • https://innovaciones-plasticas.com/imagenes_cont/sitio/documentos/53140051167.pdfIn PDF document text
    • https://masterok-kovka.ru/wp-content/plugins/super-forms/uploads/php/files/09bd1c7d0655fbb100dde60e127dba71/tawafen.pdfIn PDF document text
    • https://eyestech.in/wp-content/plugins/super-forms/uploads/php/files/bbtpc03grsifacn2shphbc3keq/sogiriratomujajidal.pdfIn PDF document text
    • https://bamfieldrental.com/userfiles/file/nimigelasanagexibigivuj.pdfIn PDF document text
    • https://prolocolidodisavio.org/ckfinder/userfiles/files/81110231003.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c51f91979db---10685065383.pdfIn PDF document text
    • https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607d100f37b05---90940429469.pdfIn PDF document text
    • http://reicar.dk/userfiles/file/81070842115.pdfIn PDF document text
    • https://vieclamday.com/userfiles/file/vutupufepade.pdfIn PDF document text
    • https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/7317e2018a1f94d2e0e3a7b60aed9adb/29191800231.pdfIn PDF document text
    • https://cakesandcupcakes.net/userfiles/files/14441388825.pdfIn PDF document text
    • http://banghetretunhien.com/media/ftp/file/xorapev.pdfIn PDF document text
    • https://alternativecarrepair.com/userfiles/file/luxeruru.pdfIn PDF document text
    • https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2df395e025---lagonemomedijesigevud.pdfIn PDF document text
    • https://pbchistoryonline.org/uploads/file/nileneganowijumu.pdfIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00019b57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19B57 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0001b369.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B369 20524 bytes
SHA-256: e4da1c20d9554c326df089b46019435cff534ec01ac6471a6b411f89897f054e