Malicious PDF — malware analysis report

Static analysis result for SHA-256 29415fb4a5d47332…

MALICIOUS

PDF

72.5 KB Created: 2021-02-07 06:51:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 2fc90824ac94ac8f19b0af7f7befa68f SHA-1: aca981254f9c7e8d3a2ba4c89dabcfd3eac94a2a SHA-256: 29415fb4a5d47332afc5d896e0fa314dfbd64757dd6bc12c86011fb22c95b8da
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to 'https://jottigo.ru/aws?utm_term=gothic+2+leveling+guide', which is likely a phishing or malware distribution site. The document body, though heavily obfuscated, suggests a lure related to a game guide, aligning with common social engineering tactics.

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/aws?utm_term=gothic+2+leveling+guide PDF link annotation
    • https://cdn.sqhk.co/jixuvepabu/Sygehdv/zupemifosezutalaw.pdfIn PDF document text
    • https://cdn.sqhk.co/diduwuposenu/iijbidZ/usa_button_up_shirt.pdfIn PDF document text
    • https://cdn.sqhk.co/vapezuwe/rBicije/home_assistant_raspberry_pi_4.pdfIn PDF document text
    • https://cdn.sqhk.co/nijegonusas/n5iaegg/descargar_fling_fighters.pdfIn PDF document text
    • https://cdn.sqhk.co/gusorewiwal/DpnRghY/umc_covid_testing_phone_number.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413564/normal_5ff3cbf9643dd.pdfIn PDF document text
    • https://cdn.sqhk.co/pixafosabow/gjhfibB/senokaxaxobafiro.pdfIn PDF document text
    • https://cdn.sqhk.co/pudinivil/9ffw7ig/voremum.pdfIn PDF document text
    • https://cdn.sqhk.co/tajavujexiz/jajgihd/jadufatasafaketozaviwujik.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470696/normal_601223c2d7649.pdfIn PDF document text
    • https://cdn.sqhk.co/zezerixuwab/itRhfvI/vulalulus.pdfIn PDF document text
    • https://cdn.sqhk.co/tinulafi/dFhajhG/81600542547.pdfIn PDF document text
    • https://cdn.sqhk.co/fejipotegevi/m8jiuid/27029785538.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/jewizopukuni/60143535030.pdfIn PDF document text
    • https://s3.amazonaws.com/rujabepifar/rekinojiroruxinigalufow.pdfIn PDF document text
    • https://s3.amazonaws.com/jezobasit/zolexaxedeluwadeg.pdfIn PDF document text
    • https://s3.amazonaws.com/wizedumi/baking_sheet_meaning_in_arabic.pdfIn PDF document text
    • https://s3.amazonaws.com/kesumasaka/62961454517.pdfIn PDF document text
    • https://s3.amazonaws.com/debamijizozexo/89999784155.pdfIn PDF document text
    • https://s3.amazonaws.com/titugome/vogeb.pdfIn PDF document text
    • https://s3.amazonaws.com/gopifu/xewutewi.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_off0000dfcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFCF 4940 bytes
SHA-256: d5ca1138ae0dc8c92192a00ceed5ca6746d1716e99812e65a0efa7d2c48c684d
font_01_sfnt_off0000f0ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0AD 10552 bytes
SHA-256: d10a3ba0856b2c869a0b17406dce1431074c94f8458acdcc5f91cb21cdf7499d

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