Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe317a86a22cceb7…

MALICIOUS

PDF

79.6 KB Created: 2021-02-13 15:54:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 97f284dcbaf0039863ac2157b80040cc SHA-1: 166e3465f4a45dbf1bcc068c2a86d3faf6c544a5 SHA-256: fe317a86a22cceb7c2bb4b91aaea4a8731844b56f28546a3e3a24993bc04acb4
136 Risk Score

Malware Insights

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

The PDF contains an embedded URL that directs users to a page offering a 'crack' for software, strongly suggesting a phishing or malware distribution attempt. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates that the document likely instructs the user to open a password-protected archive, a common tactic to bypass gateway security. The ML classifier and ClamAV detection further support the malicious nature of this file.

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
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/wb?keyword=miracle%20thunder%20dongle%20crack PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4403808/normal_5fcd573948915.pdfIn PDF document text
    • http://vapideloni.22web.org/website_layout_psd_template.pdfIn PDF document text
    • https://cdn.sqhk.co/bitaxukezor/ejb7mhd/farm_merger_cheat.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418575/normal_601fb2296bfa4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470979/normal_6004d7376164e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414352/normal_5fe922623fbed.pdfIn PDF document text
    • https://cdn.sqhk.co/lewoxiguj/gfrkDza/79745208952.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487413/normal_6013c7ce15d56.pdfIn PDF document text
    • https://cdn.sqhk.co/kufiremikaf/ha7ZhIM/zovanezoduliwuk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481510/normal_5ffed4ef57d17.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448976/normal_6005bb9935fe0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424985/normal_5fdc70501e08b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366620/normal_5fe53f6d0dac5.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/gupawupigawono/brushless_motor_controller_datasheet.pdfIn PDF document text
    • http://soburuwukipo.epizy.com/53612759882.pdfIn PDF document text
    • http://solazagu.epizy.com/how_s_everything_going_answer.pdfIn PDF document text
    • http://pagitewuzowika.epizy.com/civic_2009_manual_consumo.pdfIn PDF document text
    • http://lemenugedo.epizy.com/ruxelozubukogenukusaduxin.pdfIn PDF document text
    • https://s3.amazonaws.com/rufonali/compassion_canada_annual_report_2017.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_off0000f9f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9F8 5092 bytes
SHA-256: 52018650121a3f4ca0c0e173775068071ba99c99d7dcc9247ada2ee2b8bba2fe
font_01_sfnt_off00010b46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B46 11044 bytes
SHA-256: e766e09bbfaa1522eadf2d9a5811b7f207f505c3edb8c6f9948db21ffc953108

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