Malicious PDF — malware analysis report

Static analysis result for SHA-256 30aa6683ff3e0298…

MALICIOUS

PDF

86.6 KB Created: 2021-09-04 11:05:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: 346574afe09ffc0a3d1410966606be29 SHA-1: 8719a17f3e6f0e0187c5f5ce49a83f65a30ad171 SHA-256: 30aa6683ff3e0298ff3047f037a7dfa6ddeee7176aa24cdd089795b69bc49fc8
156 Risk Score

Malware Insights

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

The PDF contains a link farm directing to multiple websites, many of which are hosted on compromised WordPress sites. The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or malware delivery. The embedded URLs are the primary indicators of compromise, pointing to potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

Heuristics 6

  • 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
  • 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://goldenparadisestsimons.com/wp-content/plugins/super-forms/uploads/php/files/a9f31306745e7208caa24bc67c9ca1d6/73929157894.pdf In PDF document text
    • http://profil-metall.de/content/uploads/file/8460149800.pdfIn PDF document text
    • http://biolabsrl.org/userfiles/files/rufimazuzo.pdfIn PDF document text
    • http://northcity.rs/slike/files/30131355019.pdfIn PDF document text
    • https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b519e00b874---77004534895.pdfIn PDF document text
    • http://vasset.bg/userfiles/file/46369797945.pdfIn PDF document text
    • http://mavelikaradiocese.org/rapha/ckfinder/userfiles/files/18831768570.pdfIn PDF document text
    • http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/cbdeb8f0e3c1a38564fbf2f2bedf2659/memibupa.pdfIn PDF document text
    • http://oroblupiscine.it/userfiles/files/danujalogitalozuz.pdfIn PDF document text
    • https://www.arc-welding.co.uk/wp-content/plugins/super-forms/uploads/php/files/5vltamm9seeropo3q8driqnqhv/22364308895.pdfIn PDF document text
    • https://acryl-bg.com/userfiles/file/83772436569.pdfIn PDF document text
    • https://stealthwindow.tw/uploads//files/202108122051215615.pdfIn PDF document text
    • http://komputerzagrosze.pl/userfiles/file/90573092694.pdfIn PDF document text
    • https://coloreverything.love/wp-content/plugins/super-forms/uploads/php/files/b5dc37bbf39e9d6b07009f5df289830b/92662711678.pdfIn PDF document text
    • https://cpsguffanti.it/uploads/file/3622919290.pdfIn PDF document text
    • http://duocthientam.com/uploads/ckfinder/files/78864196875.pdfIn PDF document text
    • http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/16100e3712e73b---wedidupelemazano.pdfIn PDF document text
    • http://youngthisyear.com/ckfinder/userfiles/files/dafipodak.pdfIn PDF document text
    • http://www.gradur.ba/wp-content/plugins/formcraft/file-upload/server/content/files/160e0329ae46a7---98230348890.pdfIn PDF document text
    • https://wentworthre.com/wp-content/plugins/super-forms/uploads/php/files/3cabc09d13c68d3c3367e76edd0a1aa9/97375425343.pdfIn PDF document text
    • http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1612029cce7b32---xivutopobini.pdfIn PDF document text
    • http://africanhairbraidingsalon.com/userfiles/file/gobejilebokogogiz.pdfIn PDF document text
    • http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/161048162e331b---62661469964.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=adjectifs+compos%C3%A9s+anglais+liste+pdfPDF 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_off0000e552.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE552 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000fd69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD69 11128 bytes
SHA-256: 34efff7802f217973ec69d7aeb61576004e534c1f2308ac62162851131da6123
font_02_sfnt_off000116d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116D7 20456 bytes
SHA-256: 6f844938a90b8cf161055f8ec1774eff746d190bc0915dcab00907d2346e2f8d

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