Malicious PDF — malware analysis report

Static analysis result for SHA-256 7972a0305165949f…

MALICIOUS

PDF

66.5 KB Created: 2021-06-24 11:54:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: de0dca4779ad62be4e2939b9f3042035 SHA-1: 46726615d8dab6a8dc7ee39bd45d18c387102009 SHA-256: 7972a0305165949f0518167466c1203450ff63a9ee892a61369ab47650f7e676
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links, many pointing to compromised WordPress upload directories and disposable hosting, suggesting a phishing or credential harvesting campaign. The embedded URLs are designed to redirect users to potentially harmful sites, likely to download further malware or steal information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://www.napariverinn.com/wp-content/plugins/super-forms/uploads/php/files/0475341327c6da2e95cb8f223e50c35f/13097086267.pdf
    • https://k2salight.com/wp-content/plugins/super-forms/uploads/php/files/bdd8960384aee690e637fdf6b8c42898/fuzozibi.pdf
    • http://workprohealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091d342cd8ec---pupukadovosewufufamuvejew.pdf
    • http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b8d4f342a5c---41582961255.pdf
    • https://www.lenoir-elec.com/wp-content/plugins/super-forms/uploads/php/files/d2p36l89cq0b50am62fk0o8bor/46485674919.pdf
    • https://www.kadeavenue.com/wp-content/plugins/super-forms/uploads/php/files/812520b931a441e462347ea84e5edc26/96856996305.pdf
    • http://www.euro-fly.eu/userfiles/files/48264563222.pdf
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7a6dc51a04---tedozudopelajadonikejel.pdf
    • https://grahampropertytax.com/wp-content/plugins/super-forms/uploads/php/files/ea20b0c49e368c99b48a8434e675e1f5/78862010783.pdf
    • https://yournew.site/wp-content/plugins/super-forms/uploads/php/files/nkfismgg5g9nb78g4hpsakdulv/50130917926.pdf
    • http://www.mywil.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1608b29dae1f28---xezakifumizupisonowegode.pdf
    • https://atamergranit.com/userfiles/file/18960256763.pdf
    • https://www.truesdalepainting.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c876d3c352f---dexutiluwesil.pdf
    • http://horlickhigh61.com/clients/a/ab/ab3fb267cc30d45b98f460a20cee0b8d/File/92529722018.pdf
    • http://www.cheapmotorcycleinsurancepa.com/wp-content/plugins/super-forms/uploads/php/files/32sf64it4nerep4mvdjmprb433/90336718859.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=rye+beach+surf+report
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c676.bin
21a41b66e49a8301dd36caee503c934abe20987b07df0af682bda968e37091ec		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC676 5320 bytes
font_01_sfnt_off0000d893.bin
0f3d2c9c42dd87d02c8b3937ab703595a1aa4c84393036c6f63d6f447c2b826f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD893 11108 bytes

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