Malicious PDF — malware analysis report

Static analysis result for SHA-256 79ac0f94b170256b…

MALICIOUS

PDF

88.8 KB Created: 2021-03-15 18:02:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: bd982e272e7d1e0acf13b856ef1134c5 SHA-1: 165e6429870b9a757a68e8ac9c36f7c6ab38ea45 SHA-256: 79ac0f94b170256beaa38f03c4f0fd985f177fb566460ff3cdcd87f64a9cc66e
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://bologen.ru/wix?keyword=armadyl+solo+guide+rs3 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4503791/normal_602d6bad5b87f.pdfIn PDF document text
    • https://cdn.sqhk.co/xunijejozi/dsgUgSu/gebefetiwobazemamepafi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418013/normal_60037a207f693.pdfIn PDF document text
    • https://cdn.sqhk.co/kuxazigozo/jcRjixj/31711696225.pdfIn PDF document text
    • https://cdn.sqhk.co/depifozopupe/WXMSm8q/crazy_taxi_driver_south_africa.pdfIn PDF document text
    • https://cdn.sqhk.co/galemojubemo/iigLjce/22538133335.pdfIn PDF document text
    • https://cdn.sqhk.co/pefisemise/Zhhijje/beworogofevofosaje.pdfIn PDF document text
    • https://cdn.sqhk.co/naboxolat/zeiggi2/best_online_electric_guitar_tuner.pdfIn PDF document text
    • https://cdn.sqhk.co/wozejodes/hhDjhUD/tbh_q_a_for_snapchat_story.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422372/normal_5fcc029da1a50.pdfIn PDF document text
    • https://cdn.sqhk.co/xeloxilava/GhcdrWA/super_oscars_menu_la_mesa.pdfIn PDF document text
    • https://cdn.sqhk.co/xarozowuzosa/G5iajjT/xadajolepo.pdfIn PDF document text
    • https://cdn.sqhk.co/gozawelesutu/gjrggjj/strategic_management_process.pdfIn PDF document text
    • http://wopazav.22web.org/43252147454.pdfIn PDF document text
    • https://cdn.sqhk.co/furugilenu/eAgggdL/mawujajuvok.pdfIn PDF document text
    • https://cdn.sqhk.co/xadakede/Rhfqxhc/cartoon_wallpapers_supreme.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kisezemewarajox.rf.gd/parivomebozabatejol.pdfIn PDF document text
    • http://memaded.epizy.com/tilite_aero_x_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74ff0b66-ff18-4ace-8213-85c41124528f/mightier_than_the_sword_plot.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/786b63f8-9f7d-49f2-b865-e05a35a61ae0/dezigenig.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_off00011ef1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11EF1 5400 bytes
SHA-256: a56b33e938600abf04ce17dcf579a3ce33aa02f0363886a54bd8206e47ea1e50
font_01_sfnt_off00013146.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13146 10760 bytes
SHA-256: 0d823aa7d3f8dd350736f2f810854b79b1de8bb3c1b03fdb6a448673470fd5b1

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