Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e80d77cd1974b3e…

MALICIOUS

PDF

69.3 KB Created: 2021-02-18 14:23:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 94fc13739b806d36377668dd0cc6aa8f SHA-1: 2d22a7ebeb40451c82415251317b061b232e1dcf SHA-256: 1e80d77cd1974b3ecf9c6e474c8094674dc27afdff95f5df70fb1c714ed17288
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://druttle.ru/wix?keyword=disruptive+cover+letter+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4378379/normal_5fdfc49119aa0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457281/normal_6008134c3661f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475389/normal_60173fbd5d8ee.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373999/normal_5fdbcd0f3ef05.pdfIn PDF document text
    • http://metinozub.iblogger.org/55604095315.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370542/normal_601fef7cacbfc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445333/normal_6008c096848d8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416934/normal_5fdbbb7c31d5a.pdfIn PDF document text
    • http://kewujedirolut.22web.org/oferta_formativa_ies_canovas_del_castillo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366661/normal_5fde612ad9881.pdfIn PDF document text
    • http://nidikasuzarola.iblogger.org/41567043030.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452861/normal_5fefb9f058694.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://remoloki.epizy.com/gizedisikubivutalakexadu.pdfIn PDF document text
    • http://bitugoxopezuwu.rf.gd/clinical_pathology_harsh_mohan.pdfIn PDF document text
    • https://s3.amazonaws.com/vexeliku/2010_lexus_gx_460_for_sale_in_nigeria.pdfIn PDF document text
    • http://wevaxelim.rf.gd/balanced_body_reformer_for_home.pdfIn PDF document text
    • https://s3.amazonaws.com/jenisozazewubo/xafujifazixenujisosubob.pdfIn PDF document text
    • https://s3.amazonaws.com/makumapikeze/jikurulepapu.pdfIn PDF document text
    • http://sikapatosibo.rf.gd/faruzu.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d4d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4D2 5000 bytes
SHA-256: 0f77e6b68d8cfd9030654f4f130c4aacad81d2298c113310c2f83e4ff60f1193
font_01_sfnt_off0000e5f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5F6 10100 bytes
SHA-256: 885e01492d0026f01402b9dc3fb74668fc73536a48c884022b2af901645be1d6