Malicious PDF — malware analysis report

Static analysis result for SHA-256 62afcefdad410941…

MALICIOUS

PDF

77.3 KB Created: 2021-02-13 14:12:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 9eb663554b8d5f0dfc5f79f61aa9246b SHA-1: 6170f502b674738e5ea831728394e3812fc5dd59 SHA-256: 62afcefdad41094150670c05f68021c19e7eac753f20471071d2a6e5d67be302
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to 'https://maypoin.ru/wb?keyword=film%20van%20damme%20bloodsport', which is likely a phishing or malware distribution site. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the presence of the external URI is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://maypoin.ru/wb?keyword=film%20van%20damme%20bloodsport PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4465905/normal_5fe319eab14bc.pdfIn PDF document text
    • http://rumagadoli.22web.org/62571085591.pdfIn PDF document text
    • http://nuverlites.online/22585070523mjkge.pdfIn PDF document text
    • http://matcobzor.ru/5308339684023m5r.pdfIn PDF document text
    • http://donuliwobem.iblogger.org/kewititode.pdfIn PDF document text
    • http://easycreditscore.info/gujumanojk1o17.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/lurutopobi/employment_verification_form_i-_9_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxawetawupo/deferred_tax_worksheet_example.pdfIn PDF document text
    • http://gogamezotuzapop.epizy.com/a_kannada_full_movie_free.pdfIn PDF document text
    • https://s3.amazonaws.com/zesotat/gungeon_synergy_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/polojuliragam/68127486263.pdfIn PDF document text
    • https://s3.amazonaws.com/zedudo/havana_piano_sheet_music_easy.pdfIn PDF document text
    • https://s3.amazonaws.com/pazovugal/43650565427.pdfIn PDF document text
    • https://s3.amazonaws.com/sowewazulejewi/avengers_the_endgame_naa_songs.pdfIn PDF document text
    • http://mowigefugitixa.epizy.com/daduxilowovabozapuxixepo.pdfIn PDF document text
    • http://terefikug.epizy.com/free_piano_sheet_music_blessed_assurance.pdfIn PDF document text
    • http://xorikija.epizy.com/valgus_knee_deformity_osteotomy.pdfIn PDF document text
    • https://s3.amazonaws.com/tufujifinobiro/bnssg_antimicrobial_guidelines_2017.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_off0000ebe2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBE2 5260 bytes
SHA-256: f1d2eb387c6d1561e74b3cb77d2e34160575642534e50fe4d12748f24093e809
font_01_sfnt_off0000fdac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDAC 12644 bytes
SHA-256: fbca6bf644e18082a7b83ad81924b1e7dadd7c73b449c922d8644417f88405bb

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