Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2c1b7e36358545e…

MALICIOUS

PDF

72.7 KB Created: 2021-02-27 15:45:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: d2fe6794637c0e2af780f7d7026f668e SHA-1: dd05482915ffaf90f1acd9cf3b984537304982c6 SHA-256: f2c1b7e36358545e1ef84960547aa097cc987ef09e3b1a94774ee3a84d8bd1e2
136 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
  • 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://xezojetit.ru/wix?keyword=aura+kingdom+classes+guide PDF link annotation
    • http://dalifajebuxog.scienceontheweb.net/27006693145.pdfIn PDF document text
    • https://siwusoxol.weebly.com/uploads/1/3/4/5/134584737/vegobavadixat-gezabepakadizix.pdfIn PDF document text
    • http://helpverifybadges.com/breville_juice_fountain_cold_xl_recipesewrsn.pdfIn PDF document text
    • http://teasmall.space/vafuponupir6hm6a.pdfIn PDF document text
    • http://shopeuro.pro/mopani_tvet_college_prospectus_2019hfyc1.pdfIn PDF document text
    • https://viduxetejogat.weebly.com/uploads/1/3/4/6/134600114/1898365b.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/limewub/android_rom_manager_for_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/lazolu/cartoonizer_software_free.pdfIn PDF document text
    • https://s3.amazonaws.com/tugumeb/8479407345.pdfIn PDF document text
    • https://s3.amazonaws.com/futamo/webasto_diesel_water_heater_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/nevovumowa/how_to_use_a_canon_p170_dh_calculator.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_off0000e271.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE271 5312 bytes
SHA-256: 7f53c520df0e9a132af0b9aa3d07de722e2837913a516bfc6cce82367586afe3
font_01_sfnt_off0000f46e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF46E 9840 bytes
SHA-256: 7adcb975c7181ef14e3d70e6e71a3dae40736111a27483c3142d2441ba623b01

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