Malicious PDF — malware analysis report

Static analysis result for SHA-256 e147b10283208838…

MALICIOUS

PDF

96.0 KB Created: 2021-09-06 21:05:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: a7ff2e8cfe27f6a5f610a286c2cd08a4 SHA-1: 692be2ec206556014e51a4b7d9f68f5a7d57d887 SHA-256: e147b10283208838ac48332975c1465b2ae9807c7371d26d9f2ce2b5b1710ba3
154 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and ML classifiers, indicating it is likely a phishing or trojan delivery mechanism. The file contains numerous embedded URLs that point to various websites, many of which appear to be compromised or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of these links and the overall structure strongly suggest an attempt to lure users to malicious sites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5948

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://drafthe.ru/uplcv?utm_term=lpo+sample+pdf PDF link annotation
    • https://beaszemin.com/files/10959448381.pdfIn PDF document text
    • http://www.dismaplant.com/ckfinder/userfiles/files/47030045998.pdfIn PDF document text
    • http://www.prunay-en-yvelines.fr/ckfinder/userfiles/files/71159339303.pdfIn PDF document text
    • http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160755844128da---rapunus.pdfIn PDF document text
    • https://www.cascatai.com.br/ckfinder/userfiles/files/saxixetudakup.pdfIn PDF document text
    • http://acpiindia.com/userfiles/file/8871221521.pdfIn PDF document text
    • http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160caa3231d70b---98967585347.pdfIn PDF document text
    • http://www.aadhar-interior.com/userfiles/file/47466893886.pdfIn PDF document text
    • http://tamilannuaire.com/var/www/vhosts/vps296430.ovh.net/tamilannuaire.com/images/file/91687532623.pdfIn PDF document text
    • http://bidmitt.com/img/files/file/fedopowenugegagu.pdfIn PDF document text
    • https://birsamundapark.in/userfiles/files/gexirenejezuteverug.pdfIn PDF document text
    • https://ngoctraithaibinhduong.com/uploads/news_file/ribos.pdfIn PDF document text
    • http://ok-poland.com/userfiles/file/88109378062.pdfIn PDF document text
    • https://rybczewice.pl/userfiles/file/73493020657.pdfIn PDF document text
    • https://nicemexico.net/wp-content/plugins/formcraft/file-upload/server/content/files/16098465f70597---poguv.pdfIn PDF document text
    • https://lacecinella.com/writable/public/userfiles/file/rewizipobekuxurareku.pdfIn PDF document text
    • http://yachtandgulet.com/userfiles/file/dimidivojutudatumi.pdfIn PDF document text
    • https://binhvi.com/upload/files/35150398857.pdfIn PDF document text
    • http://vtracauto.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f81e445c0f---gowogarikovajebenabufovar.pdfIn PDF document text
    • https://ludifrance.fr/userfiles/file/zazopiletabis.pdfIn PDF document text
    • http://automsystem.com/UploadFile/file/20210527213621268.pdfIn PDF document text
    • http://attlas.center/userfiles/file/suxubixilikamutuw.pdfIn PDF document text
    • http://palenice.net/obrazky_clanky/file/82329344860.pdfIn 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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00015095.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15095 19704 bytes
SHA-256: 9b066b079eabd8b856bffce03866c9a33ccd5cf4d5e900ba29d5644f0c08d9e4

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