Malicious PDF — malware analysis report

Static analysis result for SHA-256 db92b8c019e14654…

MALICIOUS

PDF

74.8 KB Created: 2021-05-06 12:45:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 95719948959245358579bbbf7e7d8360 SHA-1: 65d9f37f37c9039dcab04191f0360f66eb2d11a5 SHA-256: db92b8c019e14654d43dc79dc2f4ed2d6879147ee6ef462dacbf6bbc8e8346c8
96 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. The embedded URL points to a domain that appears to be hosting a lure for an application form, suggesting a phishing or social engineering attack. No scripts were extracted, but the presence of external URIs and the nature of the detection indicate a malicious intent to deceive the user.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=scert+odisha+bed+2019+application+form
    • https://www.sabiamente.es/wp-content/plugins/formcraft/file-upload/server/content/files/1608ebf927772f---85642852842.pdf
    • http://www.kinoimaging.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16086f2c037daf---nitanaximan.pdf
    • http://www.asejnrtigers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608e72ac9947f---fapasul.pdf
    • https://sasalidayanisma.org/uploads/file/ferarebidojonubag.pdf
    • http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609294662641e---pelifexu.pdf
    • https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/se0thkuks41j1pce4v8072hphv/zelidimex.pdf
    • http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608fdb8db2494---dulinusajudijawuridapadup.pdf
    • http://www.argentum.com/wp-content/plugins/super-forms/uploads/php/files/h82opoli5gopnie8atvhu8h3j8/nunejaviw.pdf
    • http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608269d915013---27773302711.pdf
    • http://amazingindiaphotos.com/amazingindiaphotos//upload/fckimage/file/47301637932.pdf
    • https://iescolumbus.org/wp-content/plugins/super-forms/uploads/php/files/a17e8e58819ef5853ba71655670dd244/jufimojagozipudisotoz.pdf
    • https://theshairpodcast.com/wp-content/plugins/super-forms/uploads/php/files/6b8ec5c7ba89fa0b4d650822bf1c1eeb/62196500259.pdf
    • https://leesman.com/wp-content/plugins/super-forms/uploads/php/files/fe6c729abbee3e7e2d10061a00b69913/dolabokimubododaga.pdf
    • http://atdawnwelift.com/userfiles/file/57706177655.pdf
    • https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/9e91a8dc67e7fa6683a34570c98ab3eb/tiridadikuxotanu.pdf
    • http://activesolutionelectric.com/images/file/lewasav.pdf
    • https://pet-fashion.ro/mm/file/katifagifixafemenixesedob.pdf
    • https://wholisticvibrations.com/wp-content/plugins/super-forms/uploads/php/files/a50d915ef56ffad888bb0c2eddb8130d/41867860431.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_off0000e484.bin
866e91211598ca7c756a1eb0572842c5438814dfd5087df67046b693d2be7a85		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE484 6120 bytes
font_01_sfnt_off0000f92a.bin
4d1198443e01d286e35b452ea53020cad9a6886096aba575224015742dd25e08		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF92A 11152 bytes

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