Malicious PDF — malware analysis report

Static analysis result for SHA-256 92e571e977da2ed4…

MALICIOUS

PDF

71.6 KB Created: 2021-02-26 22:13:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 0033f2d4b6237bb72fb5941c40fb60cf SHA-1: 3f9fd9b909378ce7d66eb1312e621b32c6a48a2c SHA-256: 92e571e977da2ed46428cdee8ce8b00cb46a2a6bd93670382ac96f47695137cf
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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=geometry+chapter+2+vocabulary+test+answers PDF link annotation
    • http://dream-stat.ru/97825797935zb4rp.pdfIn PDF document text
    • https://wobosiwax.weebly.com/uploads/1/3/1/6/131607505/nolozilapijafutuno.pdfIn PDF document text
    • http://rameautbxy.space/wewakafvb90.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386591/normal_5fd9ac9312e24.pdfIn PDF document text
    • https://cdn.sqhk.co/fapewakuw/dochdjd/world_war_z_best_zombie_movies.pdfIn PDF document text
    • https://cdn.sqhk.co/bimowikosaru/hhYLjiF/best_tuner_pedal_for_acoustic_guitar.pdfIn PDF document text
    • https://giliwafe.weebly.com/uploads/1/3/4/0/134016831/7c1874e8e60c.pdfIn PDF document text
    • https://nibuwoxemunovox.weebly.com/uploads/1/3/4/7/134714338/3638364.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383800/normal_5fd79b3e7e385.pdfIn PDF document text
    • https://jumuwubugunitus.weebly.com/uploads/1/3/1/0/131070493/vofexo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393624/normal_5ffb637fe90e6.pdfIn PDF document text
    • https://cdn.sqhk.co/zepipawetopi/QQhfwZU/kifonisakabaresisamuvif.pdfIn PDF document text
    • https://pefojefevofat.weebly.com/uploads/1/3/4/6/134659321/zugezagibi.pdfIn PDF document text
    • https://cdn.sqhk.co/sajatanugeg/gKjff6L/blackpink_pixel_art_color_by_number_game.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407756/normal_5fdb19b1e10b9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425738/normal_601eb796f0624.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/rovuweraja/catapulted_into_the_spotlight_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/wixamupelinere/blackmart_apk_android_2._2.pdfIn PDF document text
    • https://s3.amazonaws.com/woneketelak/46718060506.pdfIn PDF document text
    • https://s3.amazonaws.com/levumoduf/ginidusebojuviruzolon.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c75e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC75E 5728 bytes
SHA-256: 0b4ba4deb279570c5065f84b90ded2384717fe31471411423aa7418be611abf0
font_01_sfnt_off0000dac9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAC9 9760 bytes
SHA-256: 37c9e3ad5ddacb2c7f04164872c9ea657b9432ffc823304c95a81f7ddcd6f733
font_02_sfnt_off0000fc65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC65 16028 bytes
SHA-256: 0bae8649ba252bcfab81cb8324cfe1737d73e47191b507e117e6d0858e0066a8

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