Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6eb0a7e98cb1b8d…

MALICIOUS

PDF

170.1 KB Created: 2021-06-16 22:30:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: be61bcaea20a18a7c5a2639e65cab9e0 SHA-1: 3ddbc1f3e56b5e78e7420461474e1c2b0a0aaa1b SHA-256: e6eb0a7e98cb1b8d028db47eaa98ea98c5de5107ca6f7aeb82c9664542662e27
164 Risk Score

Malware Insights

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

This PDF file is identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It functions as a link farm, directing users to compromised WordPress sites and disposable hosting, disguised as a movie download. The document body, though heavily obfuscated, contains references to movie titles and download terms, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

Heuristics 7

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://synerhu.ru/uplcv?utm_term=shaadi+mein+zaroor+aana+full+movie+hd+filmywap PDF link annotation
    • https://csom.cz/wp-content/plugins/super-forms/uploads/php/files/f4dd6ca781cdbd72f2baacbb04c378a2/totetat.pdfIn PDF document text
    • https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607c2a0c39ef6---tafomulobubukijo.pdfIn PDF document text
    • https://estigotours.com/wp-content/plugins/super-forms/uploads/php/files/e78306cc10d7fc09ff7f6dc594673f7b/76356105560.pdfIn PDF document text
    • http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae3bd790f83---rimeradanimar.pdfIn PDF document text
    • https://paklya.su/design/img/upload/file/josadetexe.pdfIn PDF document text
    • https://lostsoulsmemorialnj.org/wp-content/plugins/super-forms/uploads/php/files/a3784e42c6552789395c72e154c94f8b/54450032529.pdfIn PDF document text
    • http://mashtalkandil.com/userfiles/file/wazibafuxudijobigolaxas.pdfIn PDF document text
    • https://www.frankreich-ferien.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160a5eb1ae9ee6---65413097796.pdfIn PDF document text
    • https://tucsonhomewindowtint.com/wp-content/plugins/super-forms/uploads/php/files/04aea598a919608107846bad6a91bf1b/96877803605.pdfIn PDF document text
    • http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/160c8f38b45e87---27525569266.pdfIn PDF document text
    • https://www.dishdivvy.com/wp-content/plugins/super-forms/uploads/php/files/b0a44fd0b0999cfdeee224322dbd6fe2/moneroxosafodiduv.pdfIn PDF document text
    • https://eduinfinite.com/wp-content/plugins/super-forms/uploads/php/files/b7a4887587d03a5983142ff69c3257b6/lelugodadatutode.pdfIn PDF document text
    • http://allycatering.com/userfiles/lenumudakusunesipexusabo.pdfIn PDF document text
    • http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/1606ccab35c1ba---gorotaterikepovutafonov.pdfIn PDF document text
    • https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/1608f05153a513---wumonodexaropat.pdfIn PDF document text
    • http://brighterhealthcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/6t7k7p4n96v25b7lt2tesao2tt/sevekijudenu.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_007_off00026ab1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x26AB1 25180 bytes
SHA-256: 0ec72ec500b61b61266073ebfedb01e769aa186f5c5593f8338fbfce744e24a9
font_00_sfnt_off0001b19b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B19B 6744 bytes
SHA-256: ffeb89eaad713c9717385028f79c9757067aafb2c2382ea8cbab0e6efe35a425
font_01_sfnt_off0001c253.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C253 25404 bytes
SHA-256: 76940114b0ad0bf97fa5bae29e1a21b361cfe6a2081e17e520533773bb101c89
font_02_sfnt_off000212b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x212B9 5512 bytes
SHA-256: e9d1b9583afc13d51f573b6f4e9d6c991a346756e4a8ad35a540482c52f4f875
font_03_sfnt_off00022572.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22572 2568 bytes
SHA-256: b49985b3f60e1abd1d41354232a994b2616037ed577d0837376e7e778e34761b
font_04_sfnt_off000230fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x230FA 18640 bytes
SHA-256: ba3feff16882137e7f957bba213b4c4c0469daedae8978965a5d173ab2b52c53

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