Malicious PDF — malware analysis report

Static analysis result for SHA-256 32c7f384e8eda2f7…

MALICIOUS

PDF

84.9 KB Created: 2021-09-06 19:12:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: e3d1b7c8f6bc3b5f73aed4c2dbf46ba1 SHA-1: 1f4f6e6593d6f744e5f5ec1033b1502eac69a5fb SHA-256: 32c7f384e8eda2f7e6035a04ed2cf225420c446d30f674dcef120ee20dedddfa
156 Risk Score

Malware Insights

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

This PDF was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to multiple external websites, some hosted on compromised CMS uploads. The presence of numerous unknown URLs suggests a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 6

  • 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
  • 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://jamurgoreng.net/contents//files/sevagakuwopemawewabiruf.pdf In PDF document text
    • https://aronabritcan.com/userfiles/file/jojozubezi.pdfIn PDF document text
    • https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612924ef6b7a7---22966462415.pdfIn PDF document text
    • http://unsersohn.ch/images/file/70924213681.pdfIn PDF document text
    • https://foulardfotografando.it/file/39958767414.pdfIn PDF document text
    • https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/2e5e534ee3d25f003c95de139b0904e3/rujikokade.pdfIn PDF document text
    • https://prosegik.com/wp-content/plugins/super-forms/uploads/php/files/db0cbda8f19a13e62d1f36a5c4917233/dudubukavewapexaxe.pdfIn PDF document text
    • https://enville.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9ea1b5abe1---lekuwo.pdfIn PDF document text
    • https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077002cdde82---patemowededof.pdfIn PDF document text
    • http://zs-oilfieldequip.ru/d/files/40005344810.pdfIn PDF document text
    • http://h-p-n.fr/catalogue_dynamique/file/tedamexivovovagus.pdfIn PDF document text
    • https://t4g.nasscomfoundation.org/wp-content/plugins/super-forms/uploads/php/files/qmjqd22r9t67sqkvu9qc6vsrg3/654800558.pdfIn PDF document text
    • https://m-isc.com/userfiles/file/85537277751.pdfIn PDF document text
    • http://www.aceitunasdelguadalhorce.es/ckfinder/userfiles/files/19487256751.pdfIn PDF document text
    • https://roofmed.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160858a18e60d7---werebilo.pdfIn PDF document text
    • https://playgametoday.ru/wp-content/plugins/super-forms/uploads/php/files/8acdff0b5c9a41bc95c5f274244861e1/lijipakisogag.pdfIn PDF document text
    • http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b25b4dd9db0---19332597926.pdfIn PDF document text
    • http://lysfyyy.com/upload/files/vuvapujubibe.pdfIn PDF document text
    • https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/a36361d4078031efafce36ebe0450209/kopaxasokezipitajajejiz.pdfIn PDF document text
    • https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fc628093d2f---95247157963.pdfIn PDF document text
    • https://www.traveltimevipp.com/wp-content/plugins/super-forms/uploads/php/files/c6c31996cc8971897bc60a634a1a29f9/26131941587.pdfIn PDF document text
    • http://agrobud.net/uploaded/file/xigawiwap.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=arris+sb6190+user+manualPDF 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_off0000e66c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE66C 10780 bytes
SHA-256: d8410db428e1797ef641e6fd4e69882b6818f02febb4a5dfdf5b4f0502e223af
font_01_sfnt_off0000ff2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF2F 17888 bytes
SHA-256: 033ec48f05416cb75d522247ec111317f276dcbffaf75ee70e82b10185967861
font_02_sfnt_off00012dd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12DD1 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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