Malicious PDF — malware analysis report

Static analysis result for SHA-256 14945295f6658040…

MALICIOUS

PDF

71.0 KB Created: 2021-01-29 02:47:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: e21b61ee36de68a99d55dcaa47d8f840 SHA-1: 4ec0a47bfea3d8d800856f722972f3946c6be631 SHA-256: 14945295f6658040c99b1f6ed0451052194e06f7d333f7cefcc68430b1315f55
194 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wb?keyword=pixel%20gun%203d%20free%20battle%20credits In PDF document text
    • https://cdn-cms.f-static.net/uploads/4475989/normal_600f301fda17f.pdfIn PDF document text
    • http://nutunajika.66ghz.com/buick_century_1998_manual.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387235/normal_5fd387a1007dc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477649/normal_5feb483b292b2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376086/normal_5fe9630045539.pdfIn PDF document text
    • https://cdn.sqhk.co/kukelagalefe/hfyBhig/five_star_soccer_league.pdfIn PDF document text
    • http://salukapebuke.iblogger.org/67355930964.pdfIn PDF document text
    • http://xonibiz.22web.org/bournemouth_football_ground_guide.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rarezutawuwelam.epizy.com/shrimp_fried_rice_nutritional_information.pdfIn PDF document text
    • https://s3.amazonaws.com/farezelof/bejulukebekegusejes.pdfIn PDF document text
    • https://s3.amazonaws.com/vokeri/lezewotawinogag.pdfIn PDF document text
    • https://s3.amazonaws.com/tikofaketonub/battle_royale_manga_ita.pdfIn PDF document text
    • https://s3.amazonaws.com/xutomoxu/dejopatesukigoz.pdfIn PDF document text
    • http://wedalavunobuwe.rf.gd/annual_return_form_22_tamil_nadu.pdfIn PDF document text
    • http://nopuxawox.epizy.com/60700153125.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibudasagas/99809908039.pdfIn PDF document text
    • http://batogejupimole.rf.gd/basic_computer_building_guide.pdfIn PDF document text
    • http://tujefozumuresul.epizy.com/90273231358.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_off0000d9a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9A4 5560 bytes
SHA-256: 168728bf48ee90ae339dbf8ae148a97a4bf7ecf23b6a8fc00197e0eda415b8b8
font_01_sfnt_off0000eca7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECA7 9956 bytes
SHA-256: 8ad70679b9cbe1c7a0f1dfb1cbee2219db16604455458cb465aa2ab2085b2e7c

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