Malicious PDF — malware analysis report

Static analysis result for SHA-256 c106d823c0b40dd2…

MALICIOUS

PDF

93.2 KB Created: 2021-03-13 23:52:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: cc1700e613a0bc8c9e7311282cad86ff SHA-1: 21bb4193a82a72efd43e018aba5aadf02637cc65 SHA-256: c106d823c0b40dd220d521a7d08280e4cd23664bdb771a82f1dac5fd7a42379f
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 0.9995

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://jumiwimov.ru/award?keyword=bongo+song+safri+duo+pdf PDF link annotation
    • https://cdn.sqhk.co/gatuwaven/jbUbjjh/44984360148.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379606/normal_5ff809432fbfe.pdfIn PDF document text
    • http://tefosewun.22web.org/gaming_austria_guide.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500186/normal_5ff4cdd77a99f.pdfIn PDF document text
    • http://davebamonuzove.medianewsonline.com/h2o_mop_x5_elite_how_to_use.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365542/normal_6012a8a34da56.pdfIn PDF document text
    • http://doxalasi.mywebcommunity.org/7496581469.pdfIn PDF document text
    • https://cdn.sqhk.co/wikepijosipi/6DGIjct/galaxy_strike_apk_mod.pdfIn PDF document text
    • https://cdn.sqhk.co/turomixo/ijb5gdI/82819279097.pdfIn PDF document text
    • http://dakisemakegag.sportsontheweb.net/confessions_augustine_sarah_ruden.pdfIn PDF document text
    • http://zefujixa.mywebcommunity.org/xedulomeziranal.pdfIn PDF document text
    • https://cdn.sqhk.co/wefekoferu/IjejOeG/police_shooting_battle_creek_mi.pdfIn PDF document text
    • https://cdn.sqhk.co/tugitajusow/eheibji/infection_rate_of_covid_19_by_country.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459166/normal_604b197ee8581.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/nademopor/30975005764.pdfIn PDF document text
    • https://s3.amazonaws.com/woxewiwupir/78495877560.pdfIn PDF document text
    • https://s3.amazonaws.com/vovuzize/felanifovidaziwaxotedagu.pdfIn PDF document text
    • http://fulawumobolofog.epizy.com/rofinidebikuratani.pdfIn PDF document text
    • https://s3.amazonaws.com/rotowan/spelling_test_answer_sheet_50_words.pdfIn PDF document text
    • http://xedavabawavela.onlinewebshop.net/mastering_bitcoin_2nd.pdfIn PDF document text
    • http://kafopozunu.epizy.com/framework_for_ethical_decision_making_ppt.pdfIn PDF document text
    • https://s3.amazonaws.com/nazekisigiduz/69022288282.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_off0001223a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1223A 4912 bytes
SHA-256: 3739ce805aec06be8d4794d8707f91ad92dca3ca7c21e9810e2b114ccac7103a
font_01_sfnt_off000132ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x132ED 11844 bytes
SHA-256: 3a26ea4c09ed9652285e18396546abc2db6ef5e277bc0f84d0f622c3b2c7ddfb
font_02_sfnt_off000159f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x159F8 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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