Malicious PDF — malware analysis report

Static analysis result for SHA-256 471255f733f5752d…

MALICIOUS

PDF

72.5 KB Created: 2021-02-14 09:53:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: f386ce623128b5bff7fe5435cd6aab8c SHA-1: 21105a1db37011f42100a2d27095a7c83f064b32 SHA-256: 471255f733f5752d6eb2a06c7c6f89e6b4df64602e1348351605b437d7f5bda2
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/wb?keyword=taxi%20driving%20games%20mod%20apk PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4497079/normal_5feb15e1b3cb1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413456/normal_5fee2ae4c9729.pdfIn PDF document text
    • http://itdomen.fun/10822188120gt7gx.pdfIn PDF document text
    • http://cashfree.store/fun_3d_cake_cooking_game_free_download5j2wx.pdfIn PDF document text
    • https://zerimesatevig.weebly.com/uploads/1/3/4/8/134879836/zuvukowuxerofu-lonadofisiliv-sejinajar.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461245/normal_5fe2f93db3485.pdfIn PDF document text
    • https://bukusafirede.weebly.com/uploads/1/3/4/2/134266240/a23fe6263a.pdfIn PDF document text
    • http://taygerr.com/aquatic_adaptation_in_birds_and_mammalsxsf36.pdfIn PDF document text
    • http://ing-jobs-opportunities.com/32173910602jegi9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446765/normal_600615b44c2c1.pdfIn PDF document text
    • https://puliwive.weebly.com/uploads/1/3/4/6/134660228/lunurativad-poligowewibit-wekejuvuge-zudifubekav.pdfIn PDF document text
    • http://webmastervlad.ru/uno_siempre_cambia_al_amor_de_su_vidw7az7.pdfIn PDF document text
    • https://wonulabanasilod.weebly.com/uploads/1/3/1/4/131482851/rovomapizujewoj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379846/normal_5ffcd5ad719a0.pdfIn PDF document text
    • https://roparinupiw.weebly.com/uploads/1/3/5/3/135392621/70b124df.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000de6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE6B 5388 bytes
SHA-256: bdeb6584ff367bddebec4d7025fc8b94707e76831ebbdb85ad2cd065c017ace7
font_01_sfnt_off0000f0b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0B9 10672 bytes
SHA-256: 85a570e720da365292a448ffc195d1c1e670c29befa19bee9c8fa7a37b83543e

Open this report in the interactive analyzer, or submit your own file for analysis.