Malicious PDF — malware analysis report

Static analysis result for SHA-256 06d2404e20d93066…

MALICIOUS

PDF

78.2 KB Created: 2021-01-26 19:49:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 80418f64cd9f55a0fdf8a5e0aba71de0 SHA-1: 04c270665543d56bf690f83b24cf554628414182 SHA-256: 06d2404e20d9306639ca5c79e1a306b3b8c5a50d186141bf36648d82dc5cbb9d
186 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of external links, identified as a link farm, suggesting a malicious intent to redirect users. The ClamAV detection and ML classifier strongly indicate maliciousness, likely related to phishing or SEO spam. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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.
  • 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://jottigo.ru/123?utm_term=las+partes+de+la+computadoras PDF link annotation
    • https://cdn.sqhk.co/potiribuwuf/hhihCgh/top_hits_of_the_80_s_billboard.pdfIn PDF document text
    • https://cdn.sqhk.co/fuvazuginu/jdxhcic/business_analyst_skills_to_put_on_resume.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413696/normal_5ff85b86a203f.pdfIn PDF document text
    • http://present-mag.ru/war_commander_rogue_assault_cheat_enginep8f3f.pdfIn PDF document text
    • http://summ-ita.space/853077700568vabu.pdfIn PDF document text
    • http://helplnstagram-confirm.com/65389846031za2im.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453885/normal_5fee9b4c9c4bf.pdfIn PDF document text
    • https://xuniruki.weebly.com/uploads/1/3/0/7/130739043/zikapaw_rafejo_jifagomi.pdfIn PDF document text
    • http://avbox.org/repizidevonagizegorzaaq.pdfIn PDF document text
    • https://denalozi.weebly.com/uploads/1/3/0/7/130776502/mubisofeb.pdfIn PDF document text
    • https://cdn.sqhk.co/sirojenu/Ggjnxic/century_21_closing.pdfIn PDF document text
    • https://cdn.sqhk.co/wokiwife/gFjguBf/e_coli_symptoms_how_fast.pdfIn PDF document text
    • http://mazafaka69pussy.online/chinese_checkers_game_to_play1539m.pdfIn PDF document text
    • https://cdn.sqhk.co/metusoteliza/hhgjji2/70099889962.pdfIn PDF document text
    • https://cdn.sqhk.co/birenejar/BtwbNif/5562131366.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499979/normal_5fd1b611c232a.pdfIn PDF document text
    • http://molotkov.site/sirona_dental_laser96rln.pdfIn PDF document text
    • https://cdn.sqhk.co/tiviluluje/oojdiho/football_2017_sea_games.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404757/normal_5fd72724ec8b2.pdfIn PDF document text
    • https://cdn.sqhk.co/fumamimed/hdkhj6K/35123010861.pdfIn PDF document text
    • http://sadovik.me/memory_map_bike_gps_review1ux7x.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e965.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE965 5160 bytes
SHA-256: 2b380dc5d10b9f542a48ccb49d64435f050b4b09554df487952553d8ba9abac0
font_01_sfnt_off0000fade.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFADE 2096 bytes
SHA-256: aefaa4d81f5219c00a8fbd6b9bf39ed9e1719ff2bd2220d6cfdad6f9eb5de347
font_02_sfnt_off000103ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103EE 11516 bytes
SHA-256: a971e7f6481fe64b6aa3fc48281bec85e008bc8030dda524a26f7597c89aa0f8

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