Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec8a903397bcd7fc…

MALICIOUS

PDF

77.2 KB Created: 2021-03-04 02:07:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 7ca024b02b7e7577254da56a47f90279 SHA-1: 68fbc0a37cac807b941a71cf028a38aa2e122192 SHA-256: ec8a903397bcd7fc2214766931db71077e73681645cb8a1ce3f97fe326270ba6
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI that redirects to a malicious domain, likely as part of a phishing or credential harvesting campaign. ClamAV and ML classifiers also flagged this file as malicious, indicating a high probability of malicious intent. The document body, though heavily obfuscated, suggests a lure related to a specific search query, aiming to trick users into clicking the malicious link.

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://ponafet.ru/wix?keyword=knights+of+the+old+republic+lightsaber+build PDF link annotation
    • https://cdn.sqhk.co/leluforeref/iBgjPji/18126770726.pdfIn PDF document text
    • http://makeyourself.xyz/nokajowi622cp.pdfIn PDF document text
    • https://cdn.sqhk.co/kitujesijak/jggc1he/jutazojamixire.pdfIn PDF document text
    • http://familyit.pro/276071747572v9t.pdfIn PDF document text
    • http://tevfikyuce.xyz/omron_bp742n_5_series_pricetcyjs.pdfIn PDF document text
    • http://megatorg.ru/how_to_draw_and_shade_a_rose_step_by_stepuawkh.pdfIn PDF document text
    • http://shoppermarket.online/ya_vienen_los_reyes_por_el_arenal_lew65xe.pdfIn PDF document text
    • http://wssummer.space/sabidomanuwalarosugege0q6n6.pdfIn PDF document text
    • http://gatorama.site/kadowifabixuroboxedepox3ydv1.pdfIn PDF document text
    • http://rukozhop-guide.com/89976055514yfqm9.pdfIn PDF document text
    • http://lumacy.site/gbc._emu_1._5._37_apk_downloaddx0c4.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/fofeguj/29821650846.pdfIn PDF document text
    • https://s3.amazonaws.com/jixerubowi/85589626654.pdfIn PDF document text
    • https://s3.amazonaws.com/rimejiguvif/23884038770.pdfIn PDF document text
    • https://s3.amazonaws.com/xisefowu/ramogibuwa.pdfIn PDF document text
    • https://s3.amazonaws.com/tawosutosuxi/vovovufuzojirarumuwovoje.pdfIn PDF document text
    • https://s3.amazonaws.com/mufukep/psychology_of_color_light_blue.pdfIn PDF document text
    • https://s3.amazonaws.com/vunizi/sariti.pdfIn PDF document text
    • https://s3.amazonaws.com/vexosafugunu/bazudaremilemufog.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_off0000f1bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1BD 5524 bytes
SHA-256: 001aeaa0bfd209538e049a75c7b87617cf237cdf4bff7c4e8c882c81de8ec4d7
font_01_sfnt_off00010483.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10483 10200 bytes
SHA-256: 06c8cbaae30fe37bb77ff065931dcc81a3e34bae56c3eb9a1037196a2a764906

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