Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d2a2b69fbde0b64…

MALICIOUS

PDF

94.5 KB Created: 2021-03-15 07:44:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 0bb7be235ff088ab58b076d9116c0bab SHA-1: 9f40252e917c2be6b43417aa6745589049c4d04e SHA-256: 8d2a2b69fbde0b64dc6724bbabc36890c2129f9b1ded0ab702c00b0fa2840147
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 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://botokaw.ru/wix?keyword=final+fantasy+9+apk+reddit PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4379231/normal_603c55990a644.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410443/normal_60453a07aec70.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4468255/normal_5fecb3108116e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482403/normal_5fe6dd951c8de.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418970/normal_603b1e99ea8a6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373776/normal_5ffe041cc6263.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370080/normal_5fff6d6f17350.pdfIn PDF document text
    • http://viniveba.mywebcommunity.org/90726615158.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468274/normal_601b7c9db6db8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464702/normal_5fd98726a0572.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392664/normal_6041fcf029a8b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444377/normal_603ee49492290.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417040/normal_600801a05c35a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488560/normal_5fec0319700cd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/493878b3-e53f-4749-a5c6-06d60fc3781c/punctuated_equilibrium_theory_of_evolution.pdfIn PDF document text
    • https://s3.amazonaws.com/paxuvagal/97479409328.pdfIn PDF document text
    • http://tarepos.onlinewebshop.net/15133001130.pdfIn PDF document text
    • https://s3.amazonaws.com/baposivarabuj/hydrology_seminar_report.pdfIn PDF document text
    • https://s3.amazonaws.com/jeromopelurab/capital_letters_and_full_stops_worksheets_tes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8a40bff3-1934-44cc-910e-bab82c0ac1ee/91051433612.pdfIn PDF document text
    • https://s3.amazonaws.com/tudawufed/magmaster_programming_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/xonaxevetaf/faux_leather_sheets_near_me.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000facd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFACD 16272 bytes
SHA-256: 6cd795a1186613cefb93db91a5a4be78c58f08f8425b93f19e753ab04ae92958
font_01_sfnt_off00012f7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12F7A 5312 bytes
SHA-256: f9b896a5994c1983040caf43313aa8ad789206e6fad215a24ee4a545516899c7
font_02_sfnt_off000141ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x141AC 13288 bytes
SHA-256: 5cdac1dacb470f1a59084ff540f5fc59808a8def950e979ef38bd1a43a5df4cc

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