Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c2f9f301e57e4a3…

MALICIOUS

PDF

127.1 KB Created: 2021-03-29 02:18:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 3f8a291312250bbf1f13cf97e349fc41 SHA-1: b865ecfe72ca810a026bb54408a332800c0f097b SHA-256: 6c2f9f301e57e4a3ca3d661b859cc50362f69b7e0175ae72b2a39e64ddc4f02c
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'https://ponafet.ru/wix?keyword=the+silencing+of+mary+dyer+answers', which is likely a phishing or malware distribution site. The document body, though partially garbled, suggests a lure related to 'the silencing of mary dyer answers'.

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://ponafet.ru/wix?keyword=the+silencing+of+mary+dyer+answers PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4448539/normal_5feefbd104bc8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367646/normal_5ffba510d268e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477892/normal_60465ecf54f23.pdfIn PDF document text
    • http://visionnew.xyz/android_tv_box_makro12um0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445116/normal_5fe5535a1f7e7.pdfIn PDF document text
    • http://yourlivehelp.com/joramomumolozix5w7o6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370088/normal_5fcea7e0c056b.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/e4ba4b96-dd34-4e41-8ec8-06da7da5c96c/lolasesilaromimoj.pdfIn PDF document text
    • https://s3.amazonaws.com/fevobelijogal/chrome_shutdown_after_complete.pdfIn PDF document text
    • https://s3.amazonaws.com/donake/bomebosupev.pdfIn PDF document text
    • https://s3.amazonaws.com/dubiditiginowo/personal_budget_planning_spreadsheet.pdfIn PDF document text
    • https://s3.amazonaws.com/dosipive/adventures_of_tom_sawyer_movie_in_telugu.pdfIn PDF document text
    • https://s3.amazonaws.com/falejogajir/68539776684.pdfIn PDF document text
    • https://s3.amazonaws.com/pusixa/98439611978.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5e1293c0-6f76-494d-b7f8-9199e0054c88/what_colleges_are_known_for_biology.pdfIn PDF document text
    • https://s3.amazonaws.com/xakajoziwibi/upsc_csat_answer_key_2016.pdfIn PDF document text
    • https://s3.amazonaws.com/wizuluworafid/4928156323.pdfIn PDF document text
    • https://s3.amazonaws.com/kalanejaxutilif/18860315549.pdfIn PDF document text
    • https://s3.amazonaws.com/rizezobabub/fur_elise_sheet_notes.pdfIn PDF document text
    • https://s3.amazonaws.com/telasebisu/android_10_update_nokia_6._1_plus.pdfIn PDF document text
    • https://s3.amazonaws.com/liwafo/22720157926.pdfIn PDF document text
    • https://s3.amazonaws.com/rizoli/zoveduzukadis.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_off0001b5b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B5B3 5580 bytes
SHA-256: 7d6830465a77de822055afe157a318f038cec480b638d16f2b4af02997d01595
font_01_sfnt_off0001c895.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C895 11176 bytes
SHA-256: 00b905ee5fbeb0167f2f758987cd126003ad643d23302e183097be2b70eefe9a

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