Malicious PDF — malware analysis report

Static analysis result for SHA-256 3612e78eb1955c22…

MALICIOUS

PDF

95.1 KB Created: 2021-02-14 01:46:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: d4bef16e831f2ebc39df8d9c6bdc9435 SHA-1: 80f0f33ff882c30001f8f3665dea94a9a127a4cd SHA-256: 3612e78eb1955c229139c49f873961181378f7c62d521fc8ebee3995c9e197bb
104 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 presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=meiosis+1+and+2+worksheet+bethany+lau+2016+answers PDF link annotation
    • http://makeyourself.xyz/sapigivirenar1v6x.pdfIn PDF document text
    • https://cdn.sqhk.co/wujamufaw/1sibyjh/vixibumevasudu.pdfIn PDF document text
    • http://complect-tech.ru/roxilupudsbx3h.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420239/normal_5ffea465a3545.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451757/normal_60067fe282630.pdfIn PDF document text
    • https://cdn.sqhk.co/somisafeg/ihbgiho/dollar_tree_cerca_de_mi_area.pdfIn PDF document text
    • https://cdn.sqhk.co/pategazikiw/hjcmmxh/those_who_leap_over_the_threshold.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452217/normal_5fed8ed07a5c2.pdfIn PDF document text
    • http://ebay-coupon.ru/report_fraud_waste_and_abuse_air_forcexvhyu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405950/normal_6019278d4182a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462775/normal_5ff1ba4cd2b63.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474222/normal_600b7183da478.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491164/normal_5ff796cf34a44.pdfIn PDF document text
    • http://ing-cliente.com/870292609056ftd4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490917/normal_600576c8301e7.pdfIn PDF document text
    • https://cdn.sqhk.co/pibexezases/hgdcqWU/47733011718.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421341/normal_601de42fdc95b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00013726.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13726 5796 bytes
SHA-256: 13f61f7e468998bc28fdcf7233662d6f49134f74c71a35fb06a95ae50e51741f
font_01_sfnt_off00014b01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14B01 10428 bytes
SHA-256: e5bd6bec5476d3864db111779d65e70af90d6401eaededa5dbea63ce2efbffcc

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