Malicious PDF — malware analysis report

Static analysis result for SHA-256 39cac277f22ae692…

MALICIOUS

PDF

88.1 KB Created: 2021-03-20 12:33:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 06595bb441cdb946f8885a9fe2e0ee31 SHA-1: ed59f36540b8b3fdc5f5edd6d43229c22d8c8709 SHA-256: 39cac277f22ae6924fa393cf50fbbcf86dd96bf98a51d85237f9e58515b333bf
96 Risk Score

Malware Insights

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

The file is a PDF containing obfuscated content and multiple embedded URLs. The primary malicious URL, 'https://mezovuduw.ru/wix?keyword=vibe+4+in+1+remote+manual', is presented in the document body and identified by heuristics. ClamAV and ML classifiers also flagged this PDF as malicious, indicating a phishing or trojan distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

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://mezovuduw.ru/wix?keyword=vibe+4+in+1+remote+manual
    • http://dotekebenutedex.scienceontheweb.net/bouddhisme_livre.pdf
    • https://static.s123-cdn-static.com/uploads/4380531/normal_5ff217857219b.pdf
    • https://movediwifed.weebly.com/uploads/1/3/2/6/132695881/zukez.pdf
    • https://cdn-cms.f-static.net/uploads/4420764/normal_5fd22aca0e8ea.pdf
    • https://ruzudewalaxuge.weebly.com/uploads/1/3/4/4/134497745/9720890.pdf
    • http://show-visitor.xyz/suvixurigig.pdf
    • http://lomuwugevona.getenjoyment.net/addison_disease_article.pdf
    • http://suberubepuparo.getenjoyment.net/gesamugodetuworesipuwuga.pdf
    • https://bewulikafujisew.weebly.com/uploads/1/3/5/3/135326730/gabureguta_finusinobamav_betikowatipifa.pdf
    • https://zunimivivonuz.weebly.com/uploads/1/3/4/0/134017399/2a7d6d.pdf
    • https://cdn-cms.f-static.net/uploads/4379606/normal_5fdbe311318bd.pdf
    • http://trychambre.xyz/boy_scout_environmental_science_merit_badge_worksheet_answersvx3g0.pdf
    • http://menformula.xyz/zitur3yj3v.pdf
    • http://hhizmet.com/1437021062177fxw.pdf
    • https://cdn-cms.f-static.net/uploads/4380379/normal_600bd71e9007b.pdf
    • http://fezivexem.iblogger.org/33744934925.pdf
    • http://e-devletodeme.net/harry_potter_2021_lego_setskrh05.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/xarojapi/raymond_chandler_the_big_sleep_analysis.pdf
    • http://supuwevul.atwebpages.com/mezofabavaxadexaxogukekit.pdf
    • http://mutoris.rf.gd/79273066583.pdf
    • https://s3.amazonaws.com/tawovojo/78249710228.pdf
    • https://s3.amazonaws.com/domegagowevag/atualizar_android_lg_k9.pdf
    • https://s3.amazonaws.com/mokuwanibof/linksys_ac_1200_router.pdf
    • https://s3.amazonaws.com/zeworibuzoza/vale_of_dorwinion_guide.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000101a4.bin
1e932d4e6b16f67941fd0f8c57fb5d698f70f410c8a330883e5ba69d79234196		 pdf-font-stream PDF embedded font (sfnt) at offset 0x101A4 3396 bytes
font_01_sfnt_off00010dcb.bin
674793901dd0a617df578797c096cb83148804385962937470e9a640224d4312		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10DCB 4780 bytes
font_02_sfnt_off00011df2.bin
e7df7d07148b2942f4b3e73bffd040d0ac026f0268e3a36c692bb8baba7828e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11DF2 11192 bytes
font_03_sfnt_off000143e1.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0x143E1 4324 bytes

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