Malicious PDF — malware analysis report

Static analysis result for SHA-256 964d80f27f7a005d…

MALICIOUS

PDF

80.4 KB Created: 2021-02-22 10:57:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 982e39707e723ec35c90dd025e268d05 SHA-1: 0ab30fa56363adb712ed96fbcd58037f0993e198 SHA-256: 964d80f27f7a005df2f4c774e985c34926c7b703a4ab0db9026f9d2f4a20cb8a
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://crophysi.ru/wb?keyword=trane%20xr14%20heat%20pump%20specs In PDF document text
    • https://menufaron.weebly.com/uploads/1/3/0/7/130775522/6540231.pdfIn PDF document text
    • https://cdn.sqhk.co/xuwolegu/ensgfZy/chat_19_american_grill_scarsdale.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453560/normal_60009f64bc6ce.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366947/normal_5feb7866aa08a.pdfIn PDF document text
    • https://cdn.sqhk.co/revikokelobu/lijicii/season_pro_football_manager_football_management_system.pdfIn PDF document text
    • https://cdn.sqhk.co/lubigegek/hdUhadz/gonixobuwak.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447434/normal_5ff9c972949ef.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://karuserewojax.epizy.com/vasimipesimavike.pdfIn PDF document text
    • https://s3.amazonaws.com/luramamelolem/70088904766.pdfIn PDF document text
    • https://s3.amazonaws.com/pusixa/tined.pdfIn PDF document text
    • https://s3.amazonaws.com/jadudusujuje/bomb_squad_pro_edition_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/legapatatezisa/lefabidakinef.pdfIn PDF document text
    • https://s3.amazonaws.com/daraniwekamidir/gevoxefuloratata.pdfIn PDF document text
    • https://s3.amazonaws.com/nopomewegobij/73941294148.pdfIn PDF document text
    • https://s3.amazonaws.com/wuxupewu/36079722443.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_off0000fbc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBC6 5300 bytes
SHA-256: c808f0a8255a4a6bfb3ebf9f3f5151b54099ae79f912b42a1091558f3d1a2b5d
font_01_sfnt_off00010dac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DAC 11148 bytes
SHA-256: 053e0110d48543101b68aca7f39b9662208be951b1e2d1371dd5ab128ef67677