Malicious PDF — malware analysis report

Static analysis result for SHA-256 c269b6f331834d43…

MALICIOUS

PDF

87.1 KB Created: 2021-06-17 13:18:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: c736d0656735db31aba868f83becdffb SHA-1: f99dbbb149aa2d6252dc08542f1543adb4cdf427 SHA-256: c269b6f331834d43085ed6a7615b5cdbdef0232af6312ab835d8474e8c682a0e
156 Risk Score

Malware Insights

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

This PDF document contains numerous links, many pointing to compromised WordPress sites, suggesting a link farm or phishing lure. The presence of a ClamAV detection for 'Pdf.Phishing.Trojan' and a high ML classifier score strongly indicate malicious intent. The document body, though heavily obfuscated, contains text related to 'James bond spectre full movie online watch free', likely a lure to entice users to click the embedded links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://medvor.ru/uplcv?utm_term=james+bond+spectre+full+movie+online+watch+free PDF link annotation
    • http://krevue.cz/UserFiles/File/tivevozu.pdfIn PDF document text
    • http://anandtouristcorporation.com/uploads/bufegirukolataxatubu.pdfIn PDF document text
    • https://www.stamfordtaxis.com/wp-content/plugins/super-forms/uploads/php/files/r6h22rm1t1lr1t9hesj817v6iq/76022497485.pdfIn PDF document text
    • https://avenue102.com/uploads/file/41329542596.pdfIn PDF document text
    • http://doks-films.com/pcms/content/file/69683805295.pdfIn PDF document text
    • https://homeaestheticsllc.com/wp-content/plugins/super-forms/uploads/php/files/2e7373cf21aea20cc539453432713ef1/begegizijadimelobiremos.pdfIn PDF document text
    • https://inchirieriavioane.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1608b2aafc12eb---96325168490.pdfIn PDF document text
    • http://www.fullmooneye.com/wp-content/plugins/formcraft/file-upload/server/content/files/160808faa3a528---87383447310.pdfIn PDF document text
    • http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/160b31e3cea25b---rukenadafifes.pdfIn PDF document text
    • http://alfavit.tv/userfiles/file/32019166519.pdfIn PDF document text
    • https://eobliecky.sk/userfiles/file/xulavanupexuv.pdfIn PDF document text
    • https://calldidocta.com/wp-content/plugins/super-forms/uploads/php/files/4008f836d4d9796a904e85b15b3360a2/19610525418.pdfIn PDF document text
    • https://otdelkamos.ru/wp-content/plugins/super-forms/uploads/php/files/d2fdad82bb3c8a6570e72f9fcb2f3ffa/52321965458.pdfIn PDF document text
    • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/dp81gofmidr0b0sh1qn9gqr9v7/wetamipalunopotowawebeka.pdfIn PDF document text
    • http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c63da27d373---27920484753.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010655.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10655 5560 bytes
SHA-256: 685f7e702e69a50ce9ece30ef7e098af7d61a77657bd1d27e1fa068584397321
font_01_sfnt_off00011913.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11913 11244 bytes
SHA-256: c3f82b275e5baf95f26d9c713c8bf0f8ef33184b4a817cc57819483560e6e754
font_02_sfnt_off00013f17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13F17 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34