Malicious PDF — malware analysis report

Static analysis result for SHA-256 07ee1c9090f726f2…

MALICIOUS

PDF

111.4 KB Created: 2021-06-11 23:58:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 431cd7c667effa5d0c00dfd97f5e5ac3 SHA-1: 8ec337843f11404f96acb24fc5c73d5e85092ea0 SHA-256: 07ee1c9090f726f2768171bd92ba8e64c585042be599a18d68b227b61b730282
156 Risk Score

Malware Insights

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

This PDF document employs a link farm strategy, embedding numerous URLs that point to compromised WordPress sites and disposable hosting. The document body, while appearing to be search result text for a movie, is likely a lure to disguise the malicious nature of the embedded links. The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or malware distribution.

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://pixomot.ru/uplcv?utm_term=chandni+chowk+to+china+full+movie+hd+akshay+kumar PDF link annotation
    • http://birnagarcollege.in/userfiles/file/55877004967.pdfIn PDF document text
    • http://witnesstherealist.com/wp-content/plugins/super-forms/uploads/php/files/4e152aed925e8e983a838846a303a384/wavatunevosufazil.pdfIn PDF document text
    • https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/1608ac3497c428---50886856288.pdfIn PDF document text
    • https://www.bouldersudbury.org/wp-content/plugins/formcraft/file-upload/server/content/files/16077fd16516d4---82859129457.pdfIn PDF document text
    • http://anatolianlgs.com/userfiles/file/58147663656.pdfIn PDF document text
    • https://stakeoutllc.com/wp-content/plugins/super-forms/uploads/php/files/f3146816ea22cb2b33ca0cb46787e66f/1377494262.pdfIn PDF document text
    • https://www.oneirishrover.com/wp-content/plugins/super-forms/uploads/php/files/05ed0c9d1c6643ff641fb21621511915/20210266360.pdfIn PDF document text
    • https://mvpartners.be/images/uploadedimages/file/xubom.pdfIn PDF document text
    • https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/5e73b204d55381be2542a126f57137c4/82205875863.pdfIn PDF document text
    • http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16082dd49e610f---92140571985.pdfIn PDF document text
    • https://ddriu.hu/wp-content/plugins/super-forms/uploads/php/files/cb67bef49ccf307f1045d0c0362952fd/48136221882.pdfIn PDF document text
    • https://myupfield.link/wp-content/plugins/super-forms/uploads/php/files/a7omi0kgv927vgpleuu9tosl3t/pufotasidesezajunopa.pdfIn PDF document text
    • https://burmesecatclub.nz/wp-content/plugins/super-forms/uploads/php/files/a951fb1a0eec6dd08cc173eba138f310/tuvidepabevibavodel.pdfIn PDF document text
    • http://jorkurojus.com/userfiles/file/30127507326.pdfIn PDF document text
    • https://combrooncom.com/contents//files/43594618088.pdfIn PDF document text
    • http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16096c15513bbf---notidusugajinelovi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012e7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E7F 11488 bytes
SHA-256: 1abe927af74847f9ed22cf1d7abfa5290a219e7d9ef94b9c5cdd22749df4ac00
font_01_sfnt_off000153dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x153DC 5484 bytes
SHA-256: ddab62efdb495f79ab48271ebfa30bdd49056790f02b6f3bdba0d7468b35a984
font_02_sfnt_off00016676.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16676 18336 bytes
SHA-256: e1a9b23d2e8a08e97aa10dae6cb4c298f6f67507c1b185b005dc9d6b7639e347
font_03_sfnt_off00019e9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19E9A 4516 bytes
SHA-256: ee92bab77bc92e95dbcfa236a5384d6976e3c4ffaca73259d325995ae416d742

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