Malicious PDF — malware analysis report

Static analysis result for SHA-256 3eb2ece7156f1867…

MALICIOUS

PDF

77.7 KB Created: 2021-02-21 20:49:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13
MD5: 86d8ea3b94cd1758b0eb4544016a1d45 SHA-1: 44f554d44b7efa33f4e6edba8fe5d4ae57bb92b9 SHA-256: 3eb2ece7156f186748d10e3fb7307feccf97934eea4cfb6b43dde9ca07591419
96 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV and an ML classifier, with heuristics indicating the presence of an external URI. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'glitter series names'. The primary malicious indicator is the embedded URL, which likely leads to a phishing page or malware download. No scripts were extracted, but the PDF structure and embedded URI suggest a phishing or downloader attack vector.

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://baarspo.ru/wix?keyword=lol+glitter+series+names PDF link annotation
    • http://about-igsupport.com/51398508291lj4ti.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386597/normal_5feb783301212.pdfIn PDF document text
    • http://douchehq.xyz/kesuvovuh8scg.pdfIn PDF document text
    • http://razvivatel.blog/is_there_a_movie_of_the_mysterious_benedict_society5kczf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425738/normal_602712bc690d3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/patotale/appraisal_form_2055.pdfIn PDF document text
    • https://s3.amazonaws.com/tetenifeme/mekokusuxisemozewuf.pdfIn PDF document text
    • https://s3.amazonaws.com/tasufagijaremo/89269525481.pdfIn PDF document text
    • https://s3.amazonaws.com/jolituzoji/kozetenerogimigawusav.pdfIn PDF document text
    • https://s3.amazonaws.com/zosevid/60055626947.pdfIn PDF document text
    • https://s3.amazonaws.com/dazinibonofobi/hardest_a_level_biology_topics.pdfIn PDF document text
    • https://s3.amazonaws.com/zumomasugipeno/optometry_australia_and_guidelines.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e814.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE814 4736 bytes
SHA-256: 7db2a8e26418a57b768b9d5b972af8ce20debabc26a3098ebd10428d657e5cb9
font_01_sfnt_off0000f806.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF806 10456 bytes
SHA-256: 79d6853cd721e758862c7cc216e6c2c9508f8a5676059ff360ec7eedf7c7b6d4
font_02_sfnt_off00011bb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BB9 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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