Malicious PDF — malware analysis report

Static analysis result for SHA-256 332a1d6469a1b461…

MALICIOUS

PDF

79.7 KB Created: 2021-03-27 17:01:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 540ad83df34a6b5f39ad6c28f838f4ad SHA-1: c059df27cf5ed3d0e286c11b7fec2f308c844395 SHA-256: 332a1d6469a1b4612f88eaec0db3b4f73c87e2a6af9b3c0f6fd5209acc411a02
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many pointing to disposable domains, characteristic of phishing or malware distribution campaigns. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded links suggest it's designed to redirect users to malicious content, likely for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 5

  • 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 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://druttle.ru/123?utm_term=apertura+ad12+manual PDF link annotation
    • http://zonerokemub.getenjoyment.net/metales_alcalinos_propiedades.pdfIn PDF document text
    • http://modezewop.mygamesonline.org/78368197382.pdfIn PDF document text
    • http://kpupnov.pro/a_dolls_house_characters_analysisof8h2.pdfIn PDF document text
    • https://cdn.sqhk.co/runolisor/gdS1Pge/31630892180.pdfIn PDF document text
    • http://xegazinijitup.mywebcommunity.org/69963434499.pdfIn PDF document text
    • http://golegujunag.iblogger.org/95030570610.pdfIn PDF document text
    • https://cdn.sqhk.co/tutabalero/dBfjaJG/day_trading_strategy_crypto.pdfIn PDF document text
    • http://povulofi.mywebcommunity.org/nusigiv.pdfIn PDF document text
    • http://figimumagoko.mygamesonline.org/aldehidos_y_cetonas_laboratorio.pdfIn PDF document text
    • https://cdn.sqhk.co/feguzuvubut/ahE8Mii/58742258072.pdfIn PDF document text
    • https://cdn.sqhk.co/wexovezojab/hibhdiz/best_background_hd_images_for_photoshop.pdfIn PDF document text
    • http://idealica-ufficiale.site/ranudijasuremarapi666kr.pdfIn PDF document text
    • https://cdn.sqhk.co/jawosuzexe/DXjjiel/togekexenefuz.pdfIn PDF document text
    • http://vukosam.22web.org/rutiketapurupezok.pdfIn PDF document text
    • http://pavuraxef.iblogger.org/futovaxusimigenupi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rivubutapadagar.epizy.com/balaclava_school_uniform.pdfIn PDF document text
    • http://fefezaw.rf.gd/56662584448.pdfIn PDF document text
    • http://moniladipawi.epizy.com/polycarbonate_roof_sheeting_australia.pdfIn PDF document text
    • https://e108c0fa-8e70-4110-aab7-e0d30777705f.filesusr.com/ugd/d9966b_ea308d775ce84e37a4c03db172378282.pdf?index=trueIn PDF document text
    • http://xoxigibutu.epizy.com/project_management_roles_and_responsibilities_matrix.pdfIn PDF document text
    • http://vagipopigezoni.rf.gd/adolescence_laurence_steinberg_12th_edition_citation.pdfIn PDF document text
    • https://ce55c564-0e79-48ac-bd91-a034cff8554b.filesusr.com/ugd/bd1fc0_ab39d12403b7473e88c98c9c79071ad9.pdf?index=trueIn PDF document text
    • http://sabinozugi.epizy.com/operational_transconductance_amplifier.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_off0000faa9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAA9 5100 bytes
SHA-256: 4a48bcd7a3abb06ca81da1cd69d0e336eefc3a4712f728e4d542aed0dc522620
font_01_sfnt_off00010bee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BEE 10592 bytes
SHA-256: db4fa32a54ad230a59ed0b75209e835436d49d309778cb08fd1197c095dcf745

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