Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee64544e6b99b578…

MALICIOUS

PDF

72.1 KB Created: 2021-02-10 01:20:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: abdb36e03cf0851097664203bca8a867 SHA-1: f77bf159c089bb1a7460615bd02f775e11d5ed3c SHA-256: ee64544e6b99b578f794a697feb9a819c91bd5cd2f2e0ad9e1ec26be4d4f67c2
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://leonvi.ru/aws?utm_term=aashiqui+2+video+song++in+tamil PDF link annotation
    • https://cdn.sqhk.co/tulazofava/gtgjOFS/sufodezowomegenuwanuj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455208/normal_5ff5996538752.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477873/normal_600985c61b73b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454421/normal_5feeba91cc2e4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484359/normal_600decb62fc85.pdfIn PDF document text
    • https://cdn.sqhk.co/vixukose/Yc3nidq/hungry_shark_evolution_hack_download_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/giganopof/gjfu0jh/best_army_combo_clash_of_clans_th9.pdfIn PDF document text
    • http://xiwasaruv.66ghz.com/92711631483.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459166/normal_60230f544c6eb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421049/normal_5fee9d2c1fd72.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/rixevozajixezos/31225424519.pdfIn PDF document text
    • http://meresig.epizy.com/free_lagu_koplo_malaysia.pdfIn PDF document text
    • http://xazitew.epizy.com/bts_billboard_2018_full_performance.pdfIn PDF document text
    • http://puredaw.rf.gd/sikamanejovupise.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxutedi/comparative_english_grammar_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/nefagolom/40688562455.pdfIn PDF document text
    • https://s3.amazonaws.com/xumakomowi/17721100556.pdfIn PDF document text
    • https://s3.amazonaws.com/fonazuzixagizir/information_asymmetry_l_g.pdfIn PDF document text
    • http://gajovab.epizy.com/cra_authorization_form_trust.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_off0000dba0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBA0 5452 bytes
SHA-256: 91dc8e37de7f69a59ecf3458b358112af5407b52858e08705f51cfd7957d8993
font_01_sfnt_off0000ee07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE07 11092 bytes
SHA-256: 6e7a7e059cb41820899cd0a272b507728d0abee814130ec46b760c4ade871261

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