Malicious PDF — malware analysis report

Static analysis result for SHA-256 4eab97ad9076f4e6…

MALICIOUS

PDF

87.2 KB Created: 2021-03-18 22:54:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c183c4418de0f35481f3a85c65732a4c SHA-1: b164f154181deaa329ee1face41c901181165bd3 SHA-256: 4eab97ad9076f4e6418c08c4c39138cdaced691b6ccb053a55f38d46e31f7528
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, with a high risk score. It contains an embedded URI pointing to 'https://seumenha.ru/wix?keyword=kdrama+apk+mod', suggesting a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URLs indicate it's designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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=kdrama+apk+mod
    • http://sfhgfje5df.xyz/cruise_royal_caribbean_international_stock_priceyl4xv.pdf
    • https://cdn.sqhk.co/ratufewebu/hgfihZM/ted_talks_podcast_spotify.pdf
    • https://wanibezitajijo.weebly.com/uploads/1/3/6/0/136000154/5713492.pdf
    • http://virivuluk.getenjoyment.net/4942111646.pdf
    • https://solubowobadiwu.weebly.com/uploads/1/3/4/6/134642134/9474783.pdf
    • http://jilet2.club/what_is_madden_franchise_modex78nf.pdf
    • https://zuwumepegowivos.weebly.com/uploads/1/3/1/0/131069935/dabon.pdf
    • https://cdn.sqhk.co/jerowerar/fhfKAib/bofegamixazajosod.pdf
    • https://nogigeto.weebly.com/uploads/1/3/4/6/134665346/c37736.pdf
    • http://bizelapeto.iblogger.org/dark_souls_3_hollow_lord_ending_guide.pdf
    • https://cdn.sqhk.co/xegunorasu/jhhcjgJ/never_have_i_ever_netflix_cast_fabiola.pdf
    • https://dulewexafup.weebly.com/uploads/1/3/4/7/134702005/2645707.pdf
    • http://wgathering.org/75605657949migaj.pdf
    • http://ses-paypal.com/shivprasad_koirala_mvc_interview_questions_free_downloadmgbch.pdf
    • https://pizugonuju.weebly.com/uploads/1/3/1/8/131856050/1040837.pdf
    • https://cdn.sqhk.co/jilebodetifa/jaji4ih/xefexakeduzijugawed.pdf
    • http://vaxiliwu.medianewsonline.com/hernia_umbilical_en_neonatos.pdf
    • https://cdn.sqhk.co/vedimofaw/hcgpkgi/shortcut_run_game_online.pdf
    • http://hristogrigorov.com/bezmaksas_xrated_porno_filmas9ai36.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://sopomamexuse.rf.gd/anyone_of_us_stupid_mistake_free.pdf
    • http://vidugozu.atwebpages.com/xudorojo.pdf
    • http://gutekuretejapoj.onlinewebshop.net/92466487044.pdf
    • http://xubibufopude.epizy.com/learning_english_free_worksheets.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ec31.bin
46dd147953d3371b0f3bde4ffd5d4e279c58857eeada5d7922de54b7b4a00b6d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEC31 4928 bytes
font_01_sfnt_off0000fcd6.bin
cf5ed4f450e5fc1fa31c8ac31b5dbd05637a4ba05cdfa332ae769b600578e534		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFCD6 3024 bytes
font_02_sfnt_off00010804.bin
d4fa9ad43da0d7d012f35828b00a83bae704ef136fcc4c24ab6110808b084911		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10804 19628 bytes
font_03_sfnt_off000137be.bin
36298d9b42482ef505b651e9545134b76438dad7e59d1f17d96a2cc3761d4b83		 pdf-font-stream PDF embedded font (sfnt) at offset 0x137BE 16304 bytes

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