Malicious PDF — malware analysis report

Static analysis result for SHA-256 e70eb3a916b1f976…

MALICIOUS

PDF

69.5 KB Created: 2021-03-14 17:59:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: f1b12832f21073704eb5f2f1734b22b5 SHA-1: dad76089a8f8f7f628c4883db399a29f1f041aac SHA-256: e70eb3a916b1f97647c447b5aa80d92bfe9ded0346738bc9403764a30fbbcf6e
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains an embedded URI pointing to 'https://zajinet.ru/123?utm_term=bhakti+geet+video++dj', which is flagged as malicious by heuristics and a machine learning classifier. The ClamAV detection 'Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0' further confirms its malicious nature, likely related to phishing or trojan distribution. No scripts were extracted, but the presence of the malicious URL strongly suggests an attempt to redirect the user to a harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://zajinet.ru/123?utm_term=bhakti+geet+video++dj PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4414167/normal_601bb0c6ce436.pdfIn PDF document text
    • http://xodaxobomefawod.iblogger.org/hydraulic_powered_robotic_arm_from_cardboard.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379611/normal_601bd749d81b9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421969/normal_6039e17304eda.pdfIn PDF document text
    • http://vavazexowupex.medianewsonline.com/64133161725.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379744/normal_5fce2e0ec87da.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460063/normal_5fefa8e54d92e.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/faluzotixupi/how_to_verify_my_bitcoin_wallet_on_cash_app.pdfIn PDF document text
    • https://s3.amazonaws.com/gurowozenupifi/caesar_3_lugdunum_guide.pdfIn PDF document text
    • http://jimomurapujivo.onlinewebshop.net/2008_g35_transmission_fluid_change.pdfIn PDF document text
    • https://s3.amazonaws.com/foneniz/kusovejotuzigefi.pdfIn PDF document text
    • http://nukuzuxowilaz.epizy.com/reliki.pdfIn PDF document text
    • http://bezopebadutaz.rf.gd/ncert_books_for_class_7_science_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/kakef/nezuviralubuzofed.pdfIn PDF document text
    • https://s3.amazonaws.com/libusamagowuvo/regorokokazajevef.pdfIn PDF document text
    • https://s3.amazonaws.com/likadojivivofu/57388511733.pdfIn PDF document text
    • http://zukepeva.rf.gd/gufix.pdfIn PDF document text
    • https://s3.amazonaws.com/pubopelej/tetogibowesabato.pdfIn PDF document text
    • http://roxujewov.myartsonline.com/apache_web_server_book.pdfIn PDF document text
    • https://s3.amazonaws.com/vebenok/remefadivak.pdfIn PDF document text
    • https://s3.amazonaws.com/xufaxoferugod/khalil_gibran_el_profeta_sobre_la_amistad.pdfIn PDF document text
    • https://s3.amazonaws.com/posufij/12352441732.pdfIn PDF document text
    • http://zesafemumibow.myartsonline.com/cycling_cap_pattern_free.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_off0000c924.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC924 4712 bytes
SHA-256: c4202b542169cbbc0de707e474882bc30f8e74d1b1ba0f70336dc175a03310c1
font_01_sfnt_off0000d943.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD943 9656 bytes
SHA-256: fa9dc5960e28809fa5acd1b3648c1d9f12b24cfa370862fc6c9a7f0827b96139
font_02_sfnt_off0000fa62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA62 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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