Malicious PDF — malware analysis report

Static analysis result for SHA-256 f94625af59f8f8ca…

MALICIOUS

PDF

78.9 KB Created: 2021-02-11 15:42:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: ecb600fcc2269f50e5031a464362d4fa SHA-1: 5a4142a2b2ec68de54b18a4c38b9f4d9929704d5 SHA-256: f94625af59f8f8ca1b6d9199eb9b9b9af430a2130304f8f0dd74bb1c49e92bc0
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The embedded URL `https://jottigo.ru/aws?utm_term=marvel+contest+of+champions+apk+pc` suggests a phishing or malware distribution lure, likely attempting to trick users into downloading a fake application. No scripts were extracted, but the PDF structure and embedded URI are strong indicators of a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/aws?utm_term=marvel+contest+of+champions+apk+pc PDF link annotation
    • http://ufenmac.com/422525329101gk4.pdfIn PDF document text
    • http://mmeueue.space/bang_olufsen_tv_remote_control_instructionss2rc5.pdfIn PDF document text
    • http://legendbilisim.com/23110345259vs4iu.pdfIn PDF document text
    • http://thrivewebs.com/telecharger_lokicraft_pccfd95.pdfIn PDF document text
    • http://natorg.fun/freaky_snapchat_stickers_for_guysnaoid.pdfIn PDF document text
    • http://handler-autoscout24.com/anatomy_and_physiology_laboratory_manual_7th_editiongbdlx.pdfIn PDF document text
    • http://mail-autoscout24.net/counting_binary_trees_in_data_structurej246i.pdfIn PDF document text
    • http://sexesex.site/39483200384xt7ax.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/lonozote/accept_apple_music_family_invitation_android.pdfIn PDF document text
    • http://lafeseg.rf.gd/xijeli.pdfIn PDF document text
    • http://nejexapef.rf.gd/android_add_burp_certificate.pdfIn PDF document text
    • http://ruxuvejefo.epizy.com/free_template_joomla_quickstart.pdfIn PDF document text
    • https://s3.amazonaws.com/vatosolikijike/1684741883.pdfIn PDF document text
    • https://s3.amazonaws.com/wizidimawag/tumirowabunakomiz.pdfIn PDF document text
    • https://s3.amazonaws.com/mesotodimus/creative_business_cards_psd_templates_free.pdfIn PDF document text
    • https://s3.amazonaws.com/lebejos/73208791004.pdfIn PDF document text
    • https://s3.amazonaws.com/voxulija/microsoft_windows_7_iso_direct.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_off0000f2c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2C6 5384 bytes
SHA-256: 03e117448571523ec924f5f762f9e93a79d6463aff80e98e789185fedf5b385d
font_01_sfnt_off00010501.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10501 13908 bytes
SHA-256: 19da499ef99d7d84eaaf9c6eab57c8a63e5a859dc8f5bbe23b0e861cdc02c2e9

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