Malicious PDF — malware analysis report

Static analysis result for SHA-256 02d5b1b99671546a…

MALICIOUS

PDF

88.6 KB Created: 2021-03-08 15:53:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13
MD5: f57615c89e5ffc069d7e88ec30e40ee8 SHA-1: 89fdf17e842471fdb43894e67fd68dac76a95c65 SHA-256: 02d5b1b99671546ac2f2b77f0b8b28bfc1977528f8434a7d86bde0ab57ae8e2f
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'seumenha.ru', which is likely a phishing or malware distribution site. The document body, though heavily obfuscated, suggests a lure related to a game guide, indicating a social engineering attempt to trick the user into visiting the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://seumenha.ru/wix?keyword=fish+tycoon+2+guide+fran%25C3%25A7ais PDF link annotation
    • http://springwin.space/xonekugomefovaboxdqxxo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465007/normal_5fd9b0802fcec.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455901/normal_5ff7721f9ed48.pdfIn PDF document text
    • http://vozivovog.scienceontheweb.net/mamofojagun.pdfIn PDF document text
    • http://probmake12.xyz/17122734006qs5yi.pdfIn PDF document text
    • http://sreview.online/34159199311iah4w.pdfIn PDF document text
    • http://xumarageli.22web.org/kakubinesajelumonabuzunew.pdfIn PDF document text
    • http://prizinsta.site/27904290747vnhwk.pdfIn PDF document text
    • http://bezprovodov.guru/media_markt_coupon_bei_saturn_einloseng4002.pdfIn PDF document text
    • http://feremujidonigu.getenjoyment.net/miller_syncrowave_250_high_frequency_settings.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465690/normal_5fe41810d1bd7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/ddf80869-8b8a-4157-a114-2c4ef8aa8d92/discipline_and_punish_the_birth_of_the_prison_citation.pdfIn PDF document text
    • http://leteketo.rf.gd/reading_comprehension_test_for_grade_3.pdfIn PDF document text
    • https://s3.amazonaws.com/batiku/90127864695.pdfIn PDF document text
    • https://s3.amazonaws.com/werowibovezoje/33918740821.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/764807b5-5f4b-423b-a685-2f8569f1c026/24767168396.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cebfd6d2-0d8c-41c3-893e-684fc3f1da09/wiwasivadalefa.pdfIn PDF document text
    • https://s3.amazonaws.com/mutirexa/how_to_write_a_summary_for_a_book_report.pdfIn PDF document text
    • http://fixadamobus.epizy.com/80357825193.pdfIn PDF document text
    • https://s3.amazonaws.com/fulazelof/73567384602.pdfIn PDF document text
    • https://s3.amazonaws.com/jasadavebaga/xr16_trane_review.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_off00011b22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B22 5620 bytes
SHA-256: db437f4b5f92d0fc840aec2c1fcd43060fd887d17b4c92be8a4b52eeb81da897
font_01_sfnt_off00012e07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E07 10972 bytes
SHA-256: 2284d5ae2faf952cf30608c89a049284d6da678867a2b04c530312806fb135af

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