Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a27b126c4176b66…

MALICIOUS

PDF

68.9 KB Created: 2021-05-15 18:59:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ba5e42e5cbb8c9da18b20fab9d6f33c4 SHA-1: a0293bcf456e6b50bd0ff6b0b57ae49a55ebf05e SHA-256: 8a27b126c4176b66f1dff2e489f6db1c760b29d2ba8b2efeb33e05433768d756
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the presence of external URIs and the overall detection suggest the document is designed to redirect users to malicious content, potentially for phishing or malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://pixomot.ru/uplcv?utm_term=animation+library+android+studio
    • http://optimus.org.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606f257b3efd9---48010957937.pdf
    • http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160903e909d5b3---zitibibamo.pdf
    • https://signaturetowerpune.com/wp-content/plugins/super-forms/uploads/php/files/hgda1rv22i5vq331hjvdek6cj7/fipojitofukiv.pdf
    • https://www.indee-r.fr/wp-content/plugins/super-forms/uploads/php/files/72062e77532ae3f2f5d7308608cfb960/duxoputetuwarapemekawo.pdf
    • https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16085ed1fcc676---sekez.pdf
    • http://associacaoguainumbi.org.br/wp/wp-content/plugins/formcraft/file-upload/server/content/files/160768f1334af2---46837689835.pdf
    • https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/74378bebb8e4a581a6ecf4ce3ca05611/womadamafipekuvunafuvirot.pdf
    • https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/24630c072e5179c1b343ee5199f2dc13/86611368532.pdf
    • http://adamlegal.com/userfiles/file/77143142887.pdf
    • http://albino-pitti.com/pub_img/file/35698071694.pdf
    • https://wccia-vastu.com/wp-content/plugins/super-forms/uploads/php/files/0d981d2cc1d4c9fb1f6a3227e25841b8/bovomelelasiwizefex.pdf
    • https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607fe32e2aef8---87253985158.pdf
    • https://www.mii.net/wp-content/plugins/super-forms/uploads/php/files/4a6318b278f04221c88a8ab19416de24/gozojinijadibokifazifade.pdf
    • http://sazjah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b4491b2474---josisesawajaxowolejo.pdf
    • https://www.conkite.com/wp-content/plugins/super-forms/uploads/php/files/36e2d0daad739eb57d77db17e533da3d/10671276276.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_off0000d3de.bin
8c5409c2a757fbed69f7e0f3ec4084cbebe914c27e0eb4a3110a549c103f69a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD3DE 5204 bytes
font_01_sfnt_off0000e570.bin
7edd0241a1c30c0031c32c6aaf9a78d500d38b65a18b023d3b3b71cfc6313c2f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE570 9712 bytes

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