Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fb1b194dc08d4f1…

MALICIOUS

PDF

70.9 KB Created: 2021-02-23 05:48:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: fe739cc8d6becd37a5a39e8501f33494 SHA-1: 43ebe9fa9ec5833f484e967760dfc4fa438cf4a9 SHA-256: 6fb1b194dc08d4f1fd440c75811451102fe92fd92d5f28164e2fa404821614cd
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=florida+association+of+county+attorneys PDF link annotation
    • http://tafedudim.22web.org/89288431767.pdfIn PDF document text
    • http://pitepon.22web.org/adjacency_letter_template_word_2010.pdfIn PDF document text
    • http://ketorebagibof.22web.org/73673160425.pdfIn PDF document text
    • http://vereffka.xyz/326136739638d8o7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384633/normal_601aae5b905c7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370764/normal_60326e3c0b123.pdfIn PDF document text
    • https://cdn.sqhk.co/rolaravez/ojgihKd/91734328809.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420454/normal_5fe638da6c298.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/muvemasoxaji/decadencia_y_caida_del_imperio_romano.pdfIn PDF document text
    • https://s3.amazonaws.com/suzixegazunow/frontline_commando_3._0._3_mod_apk.pdfIn PDF document text
    • http://dodadaxijer.epizy.com/22007159965.pdfIn PDF document text
    • https://s3.amazonaws.com/fekife/batman_arkham_knight_100_save.pdfIn PDF document text
    • https://s3.amazonaws.com/lerezazo/lagu_betrayed_avenged_sevenfold.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_off0000d950.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD950 5072 bytes
SHA-256: 6998354afa71fa89d92009cdbd46e82283dfebbf83d0dbba4bc9bcaa5f8701ab
font_01_sfnt_off0000eaa9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAA9 10476 bytes
SHA-256: 08575039d53e11c67b9059c8d6200b7b3ccbaa4c0f4941e3f863dac9d18bebe5