Malicious PDF — malware analysis report

Static analysis result for SHA-256 592d5021222c9292…

MALICIOUS

PDF

79.9 KB Created: 2021-03-26 10:00:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-16
MD5: 5a4a2d19c8c13fcfb095dbb54cb6a986 SHA-1: 9126f93db5b78851f9ddc2d3e9b3a80eccfb3b99 SHA-256: 592d5021222c929282eacd3109191432c312625ab241200baa11ac733063417a
96 Risk Score

Malware Insights

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

The PDF file contains embedded URLs and is flagged by ClamAV as a phishing trojan. The ML classifier also strongly indicates maliciousness. The document body, though heavily obfuscated, appears to be a lure related to 'Honda pressure washer pump parts diagram', suggesting a phishing or scam attempt to drive users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://soxebez.ru/strik?utm_term=honda+pressure+washer+pump+parts+diagram PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4424405/normal_5ff189ba47753.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470975/normal_60468cbf7ef00.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413231/normal_5ffb03afdfb03.pdfIn PDF document text
    • http://motegolev.22web.org/present_perfect_exercises_worksheet.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371786/normal_5ffbb6179549a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461250/normal_604eb29b03389.pdfIn PDF document text
    • http://kizudoluwewomam.iblogger.org/25850671497.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420244/normal_5fdc22c7bd941.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4428045/normal_601d7b825bf53.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408343/normal_5ffff7b92c7c1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://b6086c54-8ef4-40f3-ba18-bbbb993b339e.filesusr.com/ugd/36e927_4a47e19bdc484ce095a14120fe9834ca.pdf?index=trueIn PDF document text
    • https://ecf8b3bd-8201-449f-a39c-156acd88681e.filesusr.com/ugd/97634b_1f02628e06e5486f9e5a239be9939a27.pdf?index=trueIn PDF document text
    • https://923a8ca3-316b-4844-b38f-9bc955ad4852.filesusr.com/ugd/312e0e_bec51f44c2eb453eaf1221eb14a914c5.pdf?index=trueIn PDF document text
    • http://relabajegeb.rf.gd/how_to_read_police_accident_report_nj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9658be77-100d-4c29-b3f0-f802186ace03/bumitizulodirojuravetowoj.pdfIn PDF document text
    • https://af0fe010-594a-4ec7-a26b-e2d78e33490d.filesusr.com/ugd/7d2910_f1cc4d20156d471ba961522c5a4c5835.pdf?index=trueIn PDF document text
    • http://dipuritaxuxok.rf.gd/burger_king_deutschland_app_download.pdfIn PDF document text
    • https://40785fcd-1e5e-4316-9306-5db1d5795eae.filesusr.com/ugd/2f07a1_6d039009fc114a40b1fe798a293d3cd0.pdf?index=trueIn PDF document text
    • https://ce55c564-0e79-48ac-bd91-a034cff8554b.filesusr.com/ugd/bd1fc0_b0d7b789146e4991ad65182bffbdd3c4.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6ae95c9-92be-4cb9-80ca-24e6de27ec77/lijarutekepuwowuxu.pdfIn PDF document text
    • http://sodexodape.rf.gd/59944419004.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_off0000f9d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9D0 5392 bytes
SHA-256: 7e4f86dfe4f8d7a4f7f050dae74288e8fcd9c772a7b8f73d03a68da2f32fdc7e
font_01_sfnt_off00010c0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C0D 11324 bytes
SHA-256: cbb571592f3a00fc5864ddbdafb8e70435d8874e1c585420e806d69b110da357

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