Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef79c2a91b45954c…

MALICIOUS

PDF

74.5 KB Created: 2021-03-16 00:56:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 2173706534fa36f1a10618f1908f55e0 SHA-1: 53e8aefdac8944fa2f5f2fa7f8c36dd0177668a5 SHA-256: ef79c2a91b45954c09481d3be0879090ecddf5ef6052ba633849c0c91de8c918
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9948

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://vilenefex.ru/wix?keyword=attuned+stone+charged PDF link annotation
    • http://wumomotetidofe.getenjoyment.net/4053914068.pdfIn PDF document text
    • http://zoluwofemofuper.sportsontheweb.net/tovokiwu.pdfIn PDF document text
    • https://pepexelizuruxu.weebly.com/uploads/1/3/4/6/134656498/wasiganog.pdfIn PDF document text
    • http://lezobul.medianewsonline.com/line_6_spider_3_150_watt_review.pdfIn PDF document text
    • https://gizivesokopupa.weebly.com/uploads/1/3/2/6/132696604/1938514.pdfIn PDF document text
    • http://kuvenumine.mygamesonline.org/sejagixe.pdfIn PDF document text
    • http://foselosen.sportsontheweb.net/puxumemu.pdfIn PDF document text
    • https://tidemipevu.weebly.com/uploads/1/3/0/7/130740592/texatogosagatif.pdfIn PDF document text
    • https://fujazilumekopel.weebly.com/uploads/1/3/2/6/132681311/584445.pdfIn PDF document text
    • https://vobotazesu.weebly.com/uploads/1/3/3/9/133986327/ponosulaxiwetabe.pdfIn PDF document text
    • https://sebikiwar.weebly.com/uploads/1/3/5/9/135962157/jadexuzuritobid-puviv.pdfIn PDF document text
    • http://gurotazejo.22web.org/20220002698.pdfIn PDF document text
    • http://zekaxezixil.medianewsonline.com/cetes_banxico.pdfIn PDF document text
    • http://tuxosuzarug.iblogger.org/gossard_bra_size_guide.pdfIn PDF document text
    • http://dixurujisefumet.22web.org/dominebezova.pdfIn PDF document text
    • http://vevaxogejaz.scienceontheweb.net/99541176271.pdfIn PDF document text
    • https://fasexunatosupa.weebly.com/uploads/1/3/1/6/131606354/4823826.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/loranoduzuja/33862287036.pdfIn PDF document text
    • https://s3.amazonaws.com/pobixedele/giriw.pdfIn PDF document text
    • http://niwurekatexo.atwebpages.com/mental_maths_worksheets_for_class_4.pdfIn PDF document text
    • http://jajuzefob.rf.gd/baul_song_webmusic._in.pdfIn PDF document text
    • https://s3.amazonaws.com/xakapudakadu/jufifuzosomazu.pdfIn PDF document text
    • http://gevewodex.epizy.com/67197975735.pdfIn PDF document text
    • http://kepagewav.atwebpages.com/do_dominos_pizza_have_msg.pdfIn PDF document text
    • https://s3.amazonaws.com/jixeremipet/xefovawalobadususebexug.pdfIn PDF document text
    • https://s3.amazonaws.com/penefelomiju/bumeroveruduridetolin.pdfIn PDF document text
    • http://tebuwawezizafes.onlinewebshop.net/chefschoice_trizor_xv_edgeselect_professional_electric_knife_sharpener.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d8da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8DA 4992 bytes
SHA-256: 8ae1971bce01a5779900b95c9ad99a70161a98c4995e827f9ed62180dc59e611
font_01_sfnt_off0000e9c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9C1 10740 bytes
SHA-256: 08caddf34694b35260479589553f41cf1f77bb8cbe9ef0e5e1face6cc477d1eb
font_02_sfnt_off00010e6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E6A 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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