Malicious PDF — malware analysis report

Static analysis result for SHA-256 22f8e302a3a8620e…

MALICIOUS

PDF

78.5 KB Created: 2021-06-20 20:51:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 1440d836f605c3eff61224b8ce28b176 SHA-1: 446c45d6c5fc9929f9105617e915bf9d63535e5d SHA-256: 22f8e302a3a8620e872c0d47e9caf4b707340d3acbf438c8865d82940ce5c358
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous links, many pointing to compromised WordPress sites, suggesting a link farm or phishing lure. The presence of 'webdultery 2012 full movie online' in the document body and a related URL indicates a social engineering attempt to trick users into clicking malicious links. ClamAV detection as 'Pdf.Phishing.Trojan' further supports the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://whitesal.com/data/images/file/1931_20210523025623.pdf In PDF document text
    • https://rclurie.com/wp-content/plugins/super-forms/uploads/php/files/856b83ae01c8e6d788e2671b5544d6ce/besexamuxovilez.pdfIn PDF document text
    • https://thepetrichortouch.com/wp-content/plugins/super-forms/uploads/php/files/0c91ofid0h4e8la3heoh24l08q/tawog.pdfIn PDF document text
    • https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/mpqm23324d8mbf37ts5j28mbke/23466120058.pdfIn PDF document text
    • http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/5smlrttp1qkejvo884tdrrcfvl/danukezanivikukivovid.pdfIn PDF document text
    • https://nscs.org/wp-content/plugins/super-forms/uploads/php/files/3e51133c5589011fdff6b10cb6af0aa6/49033344979.pdfIn PDF document text
    • http://creatinglifeoptions.com/userfiles/files/gevelosipijiguxofovef.pdfIn PDF document text
    • http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/16078a0404e4ba---jakosa.pdfIn PDF document text
    • https://bentzendesign.se/wp-content/plugins/formcraft/file-upload/server/content/files/16096ed8ae0dd2---59651446780.pdfIn PDF document text
    • http://ckrestaurantgroup.com/ckfinder/userfiles/files/48001035956.pdfIn PDF document text
    • http://lubrifianti-auto.ro/files/file/tixekogijezo.pdfIn PDF document text
    • https://chamsocmuihong.com/wp-content/plugins/super-forms/uploads/php/files/kes2r7brd1kbp95vv3grpq2u0a/51114104233.pdfIn PDF document text
    • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/2p6g00jl99hc9nola0kcjemh75/50284338589.pdfIn PDF document text
    • https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/jq5o41ps9hfskabgpbipkel0i0/kesunukodupovodutovawuz.pdfIn PDF document text
    • https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608424fc081f0---fisux.pdfIn PDF document text
    • https://dongytueduc.com/wp-content/plugins/super-forms/uploads/php/files/3c8cjfqqjj3qu115qj51en3skj/27726253643.pdfIn PDF document text
    • http://choinka4x4.org/cms/files/file/39580547668.pdfIn PDF document text
    • https://aduanaldelvalle.com/userfiles/file/xabud.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=webdultery+2012+full+movie+onlinePDF 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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f5d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5D0 5304 bytes
SHA-256: 559c4b45191853b0417784c66cd63956e7447ef511b48312ab5d02c91709e73c
font_01_sfnt_off000107e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107E6 10916 bytes
SHA-256: 3b63f338d09640364a8edfecad738f3e194581d655e501df576d983c4d14459c