Malicious PDF — malware analysis report

Static analysis result for SHA-256 41145e475f13fdfc…

MALICIOUS

PDF

85.2 KB Created: 2021-03-28 01:54:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 892d5f1d422dad91819eea2e01737df1 SHA-1: 5a8b096c7c33698e6bcf9c5a25ef1a89d5a8e99a SHA-256: 41145e475f13fdfc45938298fd1233d9723f983ddc38e699b8c2bfc9af3fe86b
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/strik?utm_term=o+que+significa+direito+divino+dos+reis PDF link annotation
    • http://ogranifruit.space/skrill_app_download_apk96boq.pdfIn PDF document text
    • http://ipai.online/513841094770h5cb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459921/normal_5feb34727d795.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471085/normal_605f842fdd926.pdfIn PDF document text
    • http://liketime.online/xelamadofofododurobupobum0gi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387933/normal_605093a0d341c.pdfIn PDF document text
    • http://xewopixomimam.22web.org/heat_n_glo_fireplace_blower_installation.pdfIn PDF document text
    • http://tujugebisuxilun.22web.org/tosanob.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378836/normal_6051721a35b56.pdfIn PDF document text
    • http://fb-ig-copyright.com/samsung_galaxy_s5_active_att_unlock_coder9tyh.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wufujudisu/kumijetirarebojofikora.pdfIn PDF document text
    • https://s3.amazonaws.com/fupanabivote/gifajiguj.pdfIn PDF document text
    • http://jarifixe.epizy.com/80964666186.pdfIn PDF document text
    • https://s3.amazonaws.com/falufusu/how_much_oil_does_a_toro_518_ze_take.pdfIn PDF document text
    • https://s3.amazonaws.com/defipedibe/vogojofemijoja.pdfIn PDF document text
    • https://s3.amazonaws.com/podawakumepewez/24597742873.pdfIn PDF document text
    • https://s3.amazonaws.com/piwupevivotixi/bairavaa_video_songs_in_tamil.pdfIn PDF document text
    • http://wajalapivibobi.epizy.com/caderno_pautado_de_musica.pdfIn PDF document text
    • http://ralirajuz.atwebpages.com/naval_civilian_pay_scale.pdfIn PDF document text
    • https://s3.amazonaws.com/suxugipipolazog/derixewi.pdfIn PDF document text
    • http://desejole.myartsonline.com/how_to_stop_smoke_alarm_from_chirping_with_new_battery.pdfIn PDF document text
    • http://dovelarewiju.epizy.com/museum_exhibition_design.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_off00010b9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B9B 5368 bytes
SHA-256: 2b0481bb23dfd943748905724b8ac9b4d4e0e8a0f5ad487d2755ac5cca758eed
font_01_sfnt_off00011df8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11DF8 13008 bytes
SHA-256: 029c9c453100b6edf9fae73f587d91f6ecb9e4867299b375581098db165828ec

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