Malicious PDF — malware analysis report

Static analysis result for SHA-256 47e2504b03bac844…

MALICIOUS

PDF

45.4 KB Created: 2021-09-03 01:33:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 1296638c12ac89aacbfb1888090f040c SHA-1: e778ff8b28c1c329772f81fbf8a4e6af63a0da56 SHA-256: 47e2504b03bac844c0522f45f863663e14d28b90f008ee67d3546c3a7b24b9eb
154 Risk Score

Malware Insights

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

The sample is identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It functions as a link farm, presenting numerous URLs that point to compromised or disposable hosting domains, likely to lure users into downloading further malware or visiting phishing sites. The presence of multiple distinct hosts and UTM parameters suggests an attempt at SEO manipulation to increase visibility.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9481

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 http://gr-chem.com/upload/files/43941252442.pdf In PDF document text
    • https://pindimana.in/uploads/file/nukozobumebumasiramusarig.pdfIn PDF document text
    • http://chia4kids.ru/ckfinder/userfiles/files/lifebedogu.pdfIn PDF document text
    • http://nuyewpilot.academy/wp-content/plugins/super-forms/uploads/php/files/567afab246af8dcf1d93e77dccd4f0f1/77735903100.pdfIn PDF document text
    • https://hcs1000.org/wp-content/plugins/super-forms/uploads/php/files/6d783b8e0552943c3189f0d9c7f6e4c3/zozigezumiwojedepugaren.pdfIn PDF document text
    • http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/ad859affe8f605a23fa59639d940b526/51579392003.pdfIn PDF document text
    • http://apicn.net/upload/files/89034825423.pdfIn PDF document text
    • http://dgjst.com/upfile/file/madubujezudunuka.pdfIn PDF document text
    • https://tecnicadovolante.com/images/file/8228779984.pdfIn PDF document text
    • https://mosoptagro.ru/wp-content/plugins/super-forms/uploads/php/files/7204287bea5b08b8863f5a92e020f0e8/81063482088.pdfIn PDF document text
    • http://freemansphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/160725824561d7---vifawuserokurolinalulo.pdfIn PDF document text
    • https://www.hausbootgeiseltalsee.de/wp-content/plugins/super-forms/uploads/php/files/nlk666r5310plompdgckhjbq2f/winubunemovenozovosi.pdfIn PDF document text
    • http://chochosanencino.com/uploads/files/farutobazokedumef.pdfIn PDF document text
    • https://nailseasupportgroup.com/wp-content/plugins/super-forms/uploads/php/files/75efeed69607970a4d70f48ee6240f24/12893837588.pdfIn PDF document text
    • https://www.taxiserviceh24.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a269bef20f5---83009493682.pdfIn PDF document text
    • https://www.havanasalsa-dance-tours.com/wp-content/plugins/super-forms/uploads/php/files/67d92c5a1701cfce96837dbf99ee7bb4/71199358579.pdfIn PDF document text
    • https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/160c3c762a98ba---85989149447.pdfIn PDF document text
    • http://surtek.biz/image/files/20150319_045501.pdfIn PDF document text
    • http://kanstm.com/ckupload/files/rejupotatemisidazu.pdfIn PDF document text
    • https://sv-fin.ru/wp-content/plugins/super-forms/uploads/php/files/e1ffb5c2206a3a231a28dd107b0d3e68/ginudatobijizelepominu.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=sram+guide+r+bleed+manualPDF link annotation

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