Malicious PDF — malware analysis report

Static analysis result for SHA-256 e06f9f3ef755c9da…

MALICIOUS

PDF

90.1 KB Created: 2021-07-06 20:01:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: bdb3c594b541d1132d017761c4206574 SHA-1: 2fee88570778b8dbbde72745f36ed5436bfcee48 SHA-256: e06f9f3ef755c9da885b62955c54ff584b9435d5cce30ae72fc106d4d9ce17af
104 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The ML classifier and ClamAV detection strongly indicate malicious intent. The 'Urgency / deadline lure' heuristic suggests a phishing pretext. While no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a potential download or redirection to a malicious payload, likely delivered via spearphishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9929

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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 http://atlantichomeportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b289f578f86---97971585653.pdf
    • http://hitechdentalhouston.com/uploads/files/senan.pdf
    • https://www.businesswatchguardingservices.co.uk/wp-content/plugins/super-forms/uploads/php/files/nne3fd1cav1gafbroqpht54qk1/20279039843.pdf
    • http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160784b0a1c7f3---97188129961.pdf
    • http://icltindia.in/userfiles/file/71165742112.pdf
    • http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/hqus2tlpdlofvdu9khrt00ci05/35467441164.pdf
    • http://c2r-auto.com/uploadfiles/file/2021052313223973499.pdf
    • https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607457d52a1d7---48795600303.pdf
    • http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075fb526bf4a---60631799853.pdf
    • https://betibg.eu/webroot/img/files/98375116286.pdf
    • http://weberstellen.ch/userfiles/file/mimewizojimaxumitewe.pdf
    • http://aeskulap24h.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072d8e98ff9e---sadufidolageve.pdf
    • https://grup-insaat.com/userfiles/file/susenufesopibivun.pdf
    • https://casabresciani.it/uploads/file/zanarijusisotoxuti.pdf
    • https://gservicepz.com/wp-content/plugins/super-forms/uploads/php/files/9a041926e3d2eab7bc1bee27026a8bd7/tovufizomibadajusojana.pdf
    • https://www.ccps.mx/wp-content/plugins/super-forms/uploads/php/files/ae74ddc919341eb05439b7c5a6f418ec/75455119430.pdf
    • https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608509e714bc7---32517965549.pdf
    • https://www.albispanaderia.com/wp-content/plugins/super-forms/uploads/php/files/f45da65d35913185918e0ea390fe0d2d/rufomabafupa.pdf
    • https://elitestrategyglobal.com/wp-content/plugins/super-forms/uploads/php/files/6576bb61d0eb8e5c93a2901cff11c4cd/jusijosalu.pdf
    • https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d9b74e36aa4---rezekolibowap.pdf
    • http://bungefamily.com/clients/5233/File/divuvagezolovefavi.pdf
    • http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/16084bcdc440c0---zakodojozakakumemovuwepen.pdf
    • https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/160aca17b0393a---87506040182.pdf
    • http://gzmzwl.com/Uploadfiles/files/20276163968.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=pon+mayflower+curry
    • http://lovewhereyoulv.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/c14bec149959f313aad70b5284945251/jilexamebeximanafeburuwil.pdf
    • 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://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000febd.bin
68b6d5ccdf1aeb830a7147b4aab6ea9bc1bec38e292e281e9c2d0c0b5b52dbe9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFEBD 17248 bytes
font_01_sfnt_off00012b73.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12B73 16792 bytes
font_02_sfnt_off0001438a.bin
8c7c240aea7f17cd4e34a68c7cae07deefb75d50062bb350b0a698fd1753caa6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1438A 10440 bytes

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