Malicious PDF — malware analysis report

Static analysis result for SHA-256 60e768123fcc15ee…

MALICIOUS

PDF

75.8 KB Created: 2021-09-24 03:20:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: 1beeb5ad0548d93b4268beb2cc98b659 SHA-1: 6fb0e3f23785bb2a9a7768fa9d72d2409edd34d6 SHA-256: 60e768123fcc15ee45e3a31b28a8aa9fdfba5cf992868ff096108657781b17b2
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains numerous embedded URLs that point to compromised CMS uploads and disposable hosting, suggesting a phishing or credential harvesting campaign. The presence of 'utm_term=minecraft+email+and+password+free' in one URL indicates a potential lure for game-related accounts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9840

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://catamma.ru/uplcv?utm_term=minecraft+email+and+password+free PDF link annotation
    • http://velkoobchod-man.eu/ckfinder/userfiles/files/vekuwijakigul.pdfIn PDF document text
    • https://senegal4d.com/contents/files/gevivu.pdfIn PDF document text
    • https://rosanaalvarracin.com/userfiles/file/menuvepegabororilopanese.pdfIn PDF document text
    • https://premium-house.uz/images/file/zilofugimitub.pdfIn PDF document text
    • https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613c54ff5fab4---tejesufanenawetadatoxolal.pdfIn PDF document text
    • https://bonvoyageindia.in/ckfinder/userfiles/files/72407717050.pdfIn PDF document text
    • https://harmony-lazienka.pl/Upload/file/nenilorakikalexelorabozad.pdfIn PDF document text
    • http://anhbanglaw.com/userfiles/file/radusuwodegakiwekex.pdfIn PDF document text
    • http://newmob.it/userfiles/files/62996726529.pdfIn PDF document text
    • https://dursunguney.com/userfiles/files/99801206529.pdfIn PDF document text
    • https://cobrawire.com/userfiles/files/budame.pdfIn PDF document text
    • https://solidpractise.com/files/userfiles/file/xolavekiwurasidataku.pdfIn PDF document text
    • http://megatex-plast.ru/pub/file/pomezaz.pdfIn PDF document text
    • https://relans-nn.ru/images/docs/file/53469712453.pdfIn PDF document text
    • https://isleo.com/i_photos/file/21870075960.pdfIn PDF document text
    • https://sklepbonus.pl/userfiles/file/tuxixigifedinodig.pdfIn PDF document text
    • http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133216d8cb74---norewulezividopemegufuwu.pdfIn PDF document text
    • http://iglozawiercie.pl/zdjecia/file/3408275131.pdfIn PDF document text
    • http://ubest.ru/images/file/54117218838.pdfIn PDF document text
    • https://hohsingfiber.com/ufiles/files/85899769495.pdfIn PDF document text
    • http://tuclubcr.com/campannas/file/48988466776.pdfIn PDF document text
    • https://loonbedrijfschimmel.nl/userfiles/files/vabaxobatubegiwosulow.pdfIn PDF document text
    • http://sdv.sk/userfiles/articles/file/53660508878.pdfIn PDF document text
    • http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1613ac4aacb85c---sigoku.pdfIn PDF document text
    • http://worshipedia.net/sites/default/files/file/92837808093.pdfIn PDF document text
    • https://carsen.sk/editor_uploads/system/files/saxumutixeza.pdfIn 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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c107.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC107 10860 bytes
SHA-256: 75a988eec5f562d9eb2384e9e24c567787b76f1653c968230ebf078c48043f96
font_01_sfnt_off0000da28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA28 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000f23a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF23A 18328 bytes
SHA-256: 0519d492b5081e872ec1031b6ee6b2cce7ea513f835693bb90f094684df88df5

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