Malicious PDF — malware analysis report

Static analysis result for SHA-256 e62cbd0367f20610…

MALICIOUS

PDF

81.9 KB Created: 2021-05-10 01:57:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 849174eaa7405a694b578265425cc593 SHA-1: 4bac3ce4abecf47edfdee971981ec6a2ce4e595a SHA-256: e62cbd0367f20610c0a8df498635417a671a26f993406d77b8054c2cec1046d5
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains embedded URLs that likely lead to further malicious content or phishing pages. The presence of multiple suspicious URLs hosted on compromised websites suggests a phishing campaign.

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://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608a5605bd605---63076237884.pdf
    • http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/160928ef983127---lujino.pdf
    • https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a385f69295---82973019942.pdf
    • https://canadianrelocation.net/wp-content/plugins/formcraft/file-upload/server/content/files/16098527687d7e---zeramagorimefifulojonujef.pdf
    • https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/160810a265ee41---13366471521.pdf
    • https://ddriu.hu/wp-content/plugins/super-forms/uploads/php/files/78a910bf7d1f1aeb28d1b2a76cb02e00/46635573264.pdf
    • http://erbilsunhotel.com/wp-content/plugins/super-forms/uploads/php/files/nt64ej42jndncb7o7ogngq17d5/32212534299.pdf
    • http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/160792ba52901b---xasixexuzidesa.pdf
    • https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/1606e45fb075fd---94516841516.pdf
    • https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/fafe481b9bb2ea08e7651913b7cef726/79629918478.pdf
    • https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bd0306009e---movolore.pdf
    • https://tfnd.org/wp-content/plugins/super-forms/uploads/php/files/560cd295ae4363e7259b351e815d58ca/49431868511.pdf
    • https://www.treehousecare.org/wp-content/plugins/formcraft/file-upload/server/content/files/160777220154de---6829230671.pdf
    • http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/16086a87f7b795---57682059396.pdf
    • https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/1608c1393316f7---zemokuviwumomoditejifoza.pdf
    • https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/b620c4a27e5d56fab9156746cd30f3e0/64278258553.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=alimenta%25C3%25A7%25C3%25A3o+saudavel+idosos+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://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001000f.bin
5427c361b6d93a78f6a0cd383138af51356844801b9da04752ac948298306a44		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1000F 5640 bytes
font_01_sfnt_off000112ac.bin
b347012f08a7e115f6b5d6718f408f5c8a574bdb47f844d838ff22c4df7930fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x112AC 12484 bytes

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