Malicious PDF — malware analysis report

Static analysis result for SHA-256 0edd224dd9ce22c6…

MALICIOUS

PDF

64.6 KB Created: 2021-06-10 22:34:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 008a47383093837708518e78a96b1635 SHA-1: f99f5f3d8e22537fa703517ee89313d33a0b60e0 SHA-256: 0edd224dd9ce22c64d4e63b8e46ffa713cb0e412927459de702035992f602f3d
156 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV detecting it as a phishing trojan. It contains numerous links to external websites, many hosted on compromised WordPress sites, suggesting a phishing or malware distribution campaign. The presence of embedded URLs and link farms indicates an attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://oniceh.ru/uplcv?utm_term=5+easy+piano+songs
    • http://accessprecision.com/userfiles/file/gobejomaraxebikubapudejas.pdf
    • https://freedomhypnosisnyc.com/wp-content/plugins/super-forms/uploads/php/files/b0548c70e72629600cda184f516bd00e/jozebazufojovob.pdf
    • http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/1609a83f715799---zokererewisixez.pdf
    • http://www.zopfitravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609bde9674f40---57738191473.pdf
    • http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607778565d51b---55362096676.pdf
    • https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160988647d66df---waximapifovozoru.pdf
    • https://asiatravel.kg/wp-content/plugins/super-forms/uploads/php/files/e31d9bd7bb93418de1935685bf3abe7a/48578836792.pdf
    • https://avis-medical.ma/wp-content/plugins/super-forms/uploads/php/files/90da806d1596aa4ff53c5621f228cbc0/56804660203.pdf
    • https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608632203224e---teviseralugexo.pdf
    • http://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078e30919fb5---powawogagukemiwegi.pdf
    • https://singaporeroadshow.com/wp-content/plugins/super-forms/uploads/php/files/9357b9157d40219c7df31d0a24fd3638/62450272464.pdf
    • http://rencontres-icare.org/userfiles/file/benabugatezofizegivuzuj.pdf
    • https://thesaddlebank.com/wp-content/plugins/super-forms/uploads/php/files/fijb9fvpmnahbge7c8njmtc7h6/dijamusowujo.pdf
    • https://expresstestingatl.com/wp-content/plugins/super-forms/uploads/php/files/488d861d36dba89365c2d0028a1f775a/gukubuvawazeluxilozewe.pdf
    • https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/731c2796d3686a27dc44ee9db0703a4d/19491955759.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • 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_off0000c4b6.bin
384c48a825239d61cea6e1bf6eb6bee6707db0fbf1663e9fcea7389fcf9aca36		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC4B6 4988 bytes
font_01_sfnt_off0000d5ce.bin
3638e328b49f4ea530f4834d672153310f0003f67d7911a0e7013f73719b8378		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD5CE 9260 bytes

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