Malicious PDF — malware analysis report

Static analysis result for SHA-256 fea6e250612f0faa…

MALICIOUS

PDF

74.7 KB Created: 2021-03-21 22:34:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 780a37d7648249a59113d08079131294 SHA-1: d0713dd4d9dc83c8cd6956db850e382c950d07da SHA-256: fea6e250612f0faa96bc058983aabbf0e3c62426d8580404a7cd3db44d2d043d
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, which is highly indicative of a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support its malicious nature. Although no scripts were extracted, the presence of the malicious URL and the document's likely intent to deceive the user into clicking it suggests a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9953

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://ponafet.ru/strik?utm_term=club+car+golf+cart+batteries+near+me
    • http://gaydating.world/1238915032k7sfe.pdf
    • https://cdn-cms.f-static.net/uploads/4478133/normal_602c1441af40e.pdf
    • http://talemine.getenjoyment.net/jesiwolinojumumane.pdf
    • http://wudenufodoroziv.scienceontheweb.net/do_worms_have_9_lives.pdf
    • https://cdn-cms.f-static.net/uploads/4467601/normal_6029d8b018ced.pdf
    • http://lastmarkt.ru/figuvunabowinumujoxadovijydjz5.pdf
    • http://salet.store/36427782444m3q5i.pdf
    • http://rasazajafatirek.mypressonline.com/5203378985.pdf
    • http://profaudit32.ru/vizio_d43-c1_remotelgevq.pdf
    • http://oyuncuxx.com/wifexosenava5prif.pdf
    • http://rawenspant.online/94613375717fupyv.pdf
    • https://static.s123-cdn-static.com/uploads/4446036/normal_5ff4ecd91d4e1.pdf
    • https://static.s123-cdn-static.com/uploads/4384851/normal_5fec402963c0d.pdf
    • http://reduslim-ufficiale.website/figom5unpl.pdf
    • http://tiktokhd.design/mapa_mundi_em_portuguesd9mhe.pdf
    • http://talkme-news.info/nakitepinusd32gx.pdf
    • https://cdn-cms.f-static.net/uploads/4413126/normal_60363526c1aa2.pdf
    • http://doxalasi.mywebcommunity.org/felopibisi.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/bipepezuwed/peripartum_cardiomyopathy_guidelines_2018.pdf
    • https://05282879-aed3-4f16-ac14-d534add4d4bd.filesusr.com/ugd/0f8b7c_0510ba1d32404c4ab092e53152be5d5e.pdf?index=true
    • https://9170d309-caca-4186-8987-bf6b40ce219c.filesusr.com/ugd/baef12_78fd0eebf78545958e863a2ad7e6a665.pdf?index=true
    • https://s3.amazonaws.com/xisefowu/ccleaner_pro_apk_android_1.pdf
    • https://s3.amazonaws.com/fajeloninesitel/61557108166.pdf
    • https://s3.amazonaws.com/fedufiporara/longman_dictionary_of_contemporary_english_6th_edition_offline.pdf
    • https://01d7ec8a-e38e-4e33-8c76-1be31754498b.filesusr.com/ugd/24d943_5aaa4872994b4d68aa3c95a7ef79fdaa.pdf?index=true
    • https://6ec3981f-6443-463b-a164-91fc69f101d9.filesusr.com/ugd/7603ae_856bd7cfc0c44b1fb0120e168a0d4ee2.pdf?index=true
    • https://s3.amazonaws.com/zarelusipofox/common_causes_of_kidney_stone_formation.pdf
    • http://mewabetowa.myartsonline.com/10104186646.pdf
    • https://081e7fb2-604d-424b-9b75-a58d54a71a44.filesusr.com/ugd/abd6ea_bf2514de44e44f0bbecab3595838e4e8.pdf?index=true
    • 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e851.bin
a6fad31a4b13f1849ba5e071eae2b4ff132238ebcadb182bc03e9a799c707454		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE851 5248 bytes
font_01_sfnt_off0000fa17.bin
3bf8cd427bb22b8fdefcaa03f2466620b008fa4321e5da4e74814488c6eb5dbd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFA17 10136 bytes

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