Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f7bf68a24ac7169…

MALICIOUS

PDF

75.4 KB Created: 2021-03-16 23:31:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 18ddca8d388ccfa2abff7a0f0ac08e7b SHA-1: 1348bc96011ea1698d941588f517b126d5c7fd94 SHA-256: 5f7bf68a24ac7169aa3aa4f0b78818ea005cd0d018789f022d8aa9ffc15272dd
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://xezojetit.ru/strik?utm_term=how+to+fix+your+gas+fireplace PDF link annotation
    • http://tufuwavaziga.mygamesonline.org/66906025821.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416672/normal_60393b5338afa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483346/normal_5fe59850a3a9a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xaboduvipil.epizy.com/echo_srm_2100_trimmer_head_diagram.pdfIn PDF document text
    • https://8eb0ff2f-1b5f-41fb-a82b-bf279dc7f43e.filesusr.com/ugd/868f76_9894ed77958c4ad587fe77d1833d177f.pdf?index=trueIn PDF document text
    • https://c46c713f-5e69-4c64-aad4-d86f29440f76.filesusr.com/ugd/957c7b_c7e56e459e3a436ba4e4a5a5c7aa9c24.pdf?index=trueIn PDF document text
    • https://a121017b-3fb3-450c-9156-48dd71a9bf80.filesusr.com/ugd/07625c_d46fa7c71c454060a932ca5b0bb6181e.pdf?index=trueIn PDF document text
    • http://jigufabusu.epizy.com/database_management_system_it_series.pdfIn PDF document text
    • http://karimelu.rf.gd/zegexi.pdfIn PDF document text
    • https://s3.amazonaws.com/fokapikow/nalikezevikemikobadafekiw.pdfIn PDF document text
    • https://s3.amazonaws.com/rorives/emerging_risks_report.pdfIn PDF document text
    • https://s3.amazonaws.com/zifozujiwi/27562213480.pdfIn PDF document text
    • http://pusapovewazigu.onlinewebshop.net/xosexajoropidifubafiwur.pdfIn PDF document text
    • https://09ec9d85-9312-4337-94d0-b84080e05f2e.filesusr.com/ugd/ac0094_7dffd358af16405a8ae2ee413b88e0cf.pdf?index=trueIn PDF document text
    • https://f64a1a0a-debf-4843-a838-a34c0cae0f4a.filesusr.com/ugd/89602e_ccbb74c445c146359d5c592c44517b1f.pdf?index=trueIn PDF document text
    • https://84bc2af4-305a-40b7-847c-8c52cb6b08d2.filesusr.com/ugd/a2e525_f5ef2c85f571401da71a5c2609e86da0.pdf?index=trueIn PDF document text
    • http://wugadavax.epizy.com/67400622098.pdfIn PDF document text
    • https://s3.amazonaws.com/wixamupelinere/10004975135.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_off0000e9f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9F6 5404 bytes
SHA-256: e5f9583aca7a1e24903ece818ac1b105871a4a5f719bdbfc5859737b3abc05f3
font_01_sfnt_off0000fc8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC8C 10440 bytes
SHA-256: 08d544e9a905e0c9e1cf99add8afc33187a62b12e9df4961b24f9045f008f29c

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