Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec30f244e68dcdbd…

MALICIOUS

PDF

70.3 KB Created: 2021-03-28 19:31:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 0664910c879a891f690733a226c5d560 SHA-1: 86fa527775966e5e7211fd459f92a22d154354b3 SHA-256: ec30f244e68dcdbd91fcf56edcfe03cac520d6c6efb66ee723278b0d2c77e3f6
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9998

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://golowaki.ru/award?keyword=oceans+chords+hillsong+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4367283/normal_6049922f42010.pdfIn PDF document text
    • http://pojapusevipuzu.mypressonline.com/xibusomikikizijezigon.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406169/normal_603a246cb04f3.pdfIn PDF document text
    • http://kogutojoveso.mywebcommunity.org/lepuxorukuviwik.pdfIn PDF document text
    • https://cdn.sqhk.co/pixisuja/iiwjj6e/kigote.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495525/normal_5fe23ab07c47b.pdfIn PDF document text
    • https://cdn.sqhk.co/xovikojux/iLrie5F/popular_hashtags_today_2019_instagram.pdfIn PDF document text
    • http://wojuzutu.iblogger.org/74377754046.pdfIn PDF document text
    • http://tunumurelumuget.iblogger.org/97824704594.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zirofasorajama.epizy.com/bsc_sem_1_chemistry_book.pdfIn PDF document text
    • http://baxudamotis.rf.gd/piwoferuzaxila.pdfIn PDF document text
    • http://nozozuwovore.atwebpages.com/is_yo_yo_dieting_dangerous.pdfIn PDF document text
    • https://s3.amazonaws.com/bulujono/types_of_curriculum_models.pdfIn PDF document text
    • https://s3.amazonaws.com/zasepo/how_to_study_management_accounting.pdfIn PDF document text
    • https://s3.amazonaws.com/pokorevalaxex/nosizumevekovanelem.pdfIn PDF document text
    • https://s3.amazonaws.com/muvojugejoxip/sanibalukajisesuk.pdfIn PDF document text
    • http://nabenejajoko.myartsonline.com/78638006935.pdfIn PDF document text
    • https://s3.amazonaws.com/suxuzubojut/30834615995.pdfIn PDF document text
    • https://s3.amazonaws.com/metakibeme/degipibabopixunif.pdfIn PDF document text
    • http://zoxuditavuvov.rf.gd/the_butler_act_1944_disadvantages.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d4f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4F6 5444 bytes
SHA-256: 75cc581819e0a2f7565444295e543ed8d06958459844e9d01329d87664c64337
font_01_sfnt_off0000e774.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE774 10544 bytes
SHA-256: d75cf1c2128c24a76cde9348cb3ef1dc50570f6337c87670071d9d2de1705a49

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