Malicious PDF — malware analysis report

Static analysis result for SHA-256 02410c8dd327a4a3…

MALICIOUS

PDF

78.2 KB Created: 2021-03-05 04:11:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: 25e3241c7001b1dee2efd7a6cfb8d131 SHA-1: 5bf969e65934356bca1149fa836ad2b288d9e2a5 SHA-256: 02410c8dd327a4a3694d6cad3be360e8090712cb8e9e1a84d9e1e067f1708dd0
126 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The document contains numerous embedded URLs, with one prominent URL pointing to 'maypoin.ru', suggesting a phishing or malware distribution attempt. The PDF structure and embedded content indicate it's designed to exploit vulnerabilities or trick users into visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://maypoin.ru/123?utm_term=what+is+the+price+of+lg+ac+1.5+ton PDF link annotation
    • https://devumevone.weebly.com/uploads/1/3/4/5/134589636/25114c.pdfIn PDF document text
    • https://cdn.sqhk.co/xuxodokoju/zQ6jcig/chicken_barbecue_near_me_today.pdfIn PDF document text
    • https://cdn.sqhk.co/mixaluwekitu/jjdiigh/xovogesopobi.pdfIn PDF document text
    • https://lekusilikeveb.weebly.com/uploads/1/3/0/7/130739001/nidemud-wizonasogake.pdfIn PDF document text
    • https://jepejopik.weebly.com/uploads/1/3/4/6/134610321/wufefu.pdfIn PDF document text
    • https://cdn.sqhk.co/xotabuti/TgiHVpj/game_axes._io_pc.pdfIn PDF document text
    • https://fofexajadovobu.weebly.com/uploads/1/3/4/7/134711713/jotuxutiwiw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://kugibujupedo.rf.gd/8734484624.pdfIn PDF document text
    • http://puvusevakap.epizy.com/is_it_better_to_bake_or_convection_roast_a_turkey.pdfIn PDF document text
    • http://nejotuwusa.rf.gd/komesuporokewutozigivolaj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f47cdfee-a622-4e4a-ac93-59cbf2af7ada/napatidemoxor.pdfIn PDF document text
    • https://s3.amazonaws.com/jipowumat/63263663191.pdfIn PDF document text
    • http://roparewuna.rf.gd/naduvebaruxazu.pdfIn PDF document text
    • https://s3.amazonaws.com/zesixefe/newman_projection_of_cyclohexane_boat_conformation.pdfIn PDF document text
    • https://s3.amazonaws.com/legenapi/jaipongan_baranyay_group.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef0462ab-8930-4dbc-8022-36ab4113c89c/dell_e207wfp_specifications.pdfIn PDF document text
    • http://rawozenagi.epizy.com/xelemisaxuveb.pdfIn PDF document text
    • https://s3.amazonaws.com/fomaralunex/water_brochure_design_vector_free.pdfIn PDF document text
    • http://fewetero.epizy.com/7513110037.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000def3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEF3 5500 bytes
SHA-256: 43808994d61abb5a528c98486560c7fb5e7142af062fe571f8a215d39b61ea00
font_01_sfnt_off0000f1c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1C0 11232 bytes
SHA-256: adfec691cd84dce738c48f9713541d6ac2c73039bdd3c8c807b30788c98bbecc
font_02_sfnt_off0001184a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1184A 5340 bytes
SHA-256: 5178032a12971e14e39a6c31ef47b1cc234c92ec915cfdfe188b2c7748c8adb5

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