Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd70e210e8ee7cc4…

MALICIOUS

PDF

69.3 KB Created: 2021-01-15 02:52:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-19
MD5: f8de5420f3ac3af11e1d6c06949c63b7 SHA-1: 8b41ac0ed09c4c24ecf22eb2daacfb87ba02a441 SHA-256: cd70e210e8ee7cc454876042c32e4766daeb052742d175e3043237ae27eb4d4f
252 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 7

  • 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.
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://ggtraff.ru/wb?keyword=amazon%20music%20download%20mp3 In PDF document text
    • https://cdn.sqhk.co/zururodi/egfjaOo/high_quality_mp3_voice_recorder_iphone.pdfIn PDF document text
    • https://site-1175981.mozfiles.com/files/1175981/talking_tom_gold_run_game_download_mod_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367650/normal_5f96ff4d2cb71.pdfIn PDF document text
    • https://tilotifibow.weebly.com/uploads/1/3/4/5/134505855/zuloxaf.pdfIn PDF document text
    • https://peketavapi.weebly.com/uploads/1/3/4/3/134331612/7734773.pdfIn PDF document text
    • https://piborubaladedos.weebly.com/uploads/1/3/4/7/134764427/1121616.pdfIn PDF document text
    • https://potemoguzoka.weebly.com/uploads/1/3/4/6/134646314/nudusuxex-gejadus-zolozod.pdfIn PDF document text
    • https://fugakesuj.weebly.com/uploads/1/3/0/7/130776648/8dc3a5f92f0.pdfIn PDF document text
    • https://cdn.sqhk.co/bogulevim/c74ifgf/johnny_jetpack_game.pdfIn PDF document text
    • https://site-1167961.mozfiles.com/files/1167961/13302662194.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/zifilobesumafi/progress_report_meaning_in_bengali.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_off0000d1af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1AF 5420 bytes
SHA-256: cdeca6313b09dcc7e3f47d4e3b337eefc783ceefca2d2d6503347e9e04e6bff6
font_01_sfnt_off0000e426.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE426 10548 bytes
SHA-256: ef749c350f98f2647640616a04cec988f150ac2bb506556759c7304b43055cf2

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