Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc3ca196dbe1c90b…

MALICIOUS

PDF

83.1 KB Created: 2021-03-15 13:25:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6c5241ff218126cea0f81a11c2d75ac1 SHA-1: 89289165647b983d4a4716dc35f81a1669c1577b SHA-256: fc3ca196dbe1c90b4b5726a952fb781e1c3f579e4aa01cc8089cb5677b67c757
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The sample was detected as a phishing trojan by ClamAV and flagged by an ML classifier. It contains numerous embedded URLs, with at least one pointing to a link farm on disposable hosting, suggesting a phishing or malware distribution attempt. The PDF structure itself is also noted as having duplicate objects, which can sometimes be used to evade detection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://nipisod.ru/strik?utm_term=el+principito+y+la+rosa+frases+de+amor PDF link annotation
    • http://gooddevice-online.com/58668652720bn2r2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419437/normal_6013b61d78954.pdfIn PDF document text
    • https://popupobapovuzus.weebly.com/uploads/1/3/4/0/134012290/09ef67a8382c9.pdfIn PDF document text
    • http://raxawevamavox.getenjoyment.net/percy_jackson_character_traits_in_sea_of_monsters.pdfIn PDF document text
    • http://melidagerukebel.sportsontheweb.net/jidipuguvezurimijebizezi.pdfIn PDF document text
    • http://nesobaka7.xyz/how_to_use_xfinity_wifi_routerjjihh.pdfIn PDF document text
    • http://italy50wow.pro/urine_neutralizer_sprayurf2e.pdfIn PDF document text
    • http://fijazubelanulek.mywebcommunity.org/26139493861.pdfIn PDF document text
    • http://goduvide.22web.org/bollywood_new_movie_free_mp4.pdfIn PDF document text
    • https://mogivara.weebly.com/uploads/1/3/2/7/132712472/c3f72b2c0.pdfIn PDF document text
    • http://valezopifipob.22web.org/adding_3_fractions_with_like_denominators_worksheets.pdfIn PDF document text
    • https://sugulidan.weebly.com/uploads/1/3/4/5/134508933/nisejede.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416653/normal_600c5241e83de.pdfIn PDF document text
    • http://noxaduva.mypressonline.com/signo_de_kernig_y_brudzinski.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451549/normal_6001562733a22.pdfIn PDF document text
    • http://putededojijubo.iblogger.org/is_google_my_maps_free.pdfIn PDF document text
    • http://terakusinuw.mypressonline.com/78861347604.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ritumogadoj.onlinewebshop.net/tisebawubiguw.pdfIn PDF document text
    • http://nazopagoja.epizy.com/airsoft_uniform_for_sale_philippines.pdfIn PDF document text
    • http://jokosen.atwebpages.com/11560769858.pdfIn PDF document text
    • http://jimomurapujivo.onlinewebshop.net/56990112659.pdfIn PDF document text
    • http://fekejuw.atwebpages.com/papyrus_of_ani_egyptian_book_of_the_dead.pdfIn PDF document text
    • http://wetulokavavute.epizy.com/adjectives_with_pictures_worksheets.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_off000103cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103CB 5360 bytes
SHA-256: 592e198baa6e913766dae6828cebc265772ca36443dfdfda111ac8f59fa8e8c0
font_01_sfnt_off000115fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x115FE 12176 bytes
SHA-256: 47c97789794d3b739e7f556b236172543ce29f223d3c59dd0f2a1c8f3ef87de6

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