Malicious PDF — malware analysis report

Static analysis result for SHA-256 9be8e53700bd510e…

MALICIOUS

PDF

73.3 KB Created: 2021-02-10 13:36:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 46850134b4d49eedf2ad24ebf2183fbe SHA-1: 856ed5cc89773e603f5f8a77dda9ae0023ecb66d SHA-256: 9be8e53700bd510e96196479b52721898abdb528647cc147a8a0760b0e9a5a34
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The sample was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Numerous embedded URLs point to disposable domains and link farms, indicating a strong intent to redirect users to potentially harmful sites. The PDF structure and embedded links are consistent with phishing lures designed to trick users into downloading further malware or revealing sensitive information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • 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 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://leonvi.ru/123?utm_term=realtek+digital+output+no+surround+sound PDF link annotation
    • http://naturka.space/the_way_up_to_heaven_by_roald_dahl898j0.pdfIn PDF document text
    • http://fulitip.iblogger.org/91382006259.pdfIn PDF document text
    • https://cdn.sqhk.co/baxijaxazixi/fjdjhzM/torujikixumefajixum.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405208/normal_60066e8bbedc2.pdfIn PDF document text
    • http://aicberg.net/64044184219zhupu.pdfIn PDF document text
    • https://kixajunurepe.weebly.com/uploads/1/3/1/4/131406563/5822866.pdfIn PDF document text
    • https://sakotitalivuvu.weebly.com/uploads/1/3/4/8/134887700/fodupibuxapem.pdfIn PDF document text
    • http://rotelebi.22web.org/garnier_sheet_mask_vitamin_c.pdfIn PDF document text
    • https://cdn.sqhk.co/vujenibolo/c6QzgjH/laguno.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388177/normal_5fca30d3b05da.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375355/normal_5fd3d9d17712d.pdfIn PDF document text
    • https://cdn.sqhk.co/wogokodu/b7wjihg/houseparty_sign_in.pdfIn PDF document text
    • https://cdn.sqhk.co/rularijulen/bggDHx7/mind_relaxing_music_for_sleep_free_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417030/normal_5fe2a10e02952.pdfIn PDF document text
    • http://brosbass.com/best_android_iptv_apk_2020kk7xd.pdfIn PDF document text
    • https://cdn.sqhk.co/xebibugekux/ijjbLgc/38315662192.pdfIn PDF document text
    • https://cdn.sqhk.co/wefonasifaza/djiW5ig/bodefodamesi.pdfIn PDF document text
    • https://tejukikefuxod.weebly.com/uploads/1/3/4/7/134703803/5676473.pdfIn PDF document text
    • http://tehnoprom.org/sprinkler_irrigation_system_componentsco4nl.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zudajuwi.epizy.com/jpg_to_autocad_converter_online_free.pdfIn PDF document text
    • http://vowoxemaxevajo.epizy.com/ryzen_7_overclocking_guide.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e1d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1D8 5200 bytes
SHA-256: 0973faa5fe70c47775bddaf155665697d90e3fd42507685bbf43994e601b6f9a
font_01_sfnt_off0000f39a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF39A 10512 bytes
SHA-256: bcabc85147b902cb0cd3c8f9e3e8ddba4766bf7b0480ca35c5b275158d2aafd1

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