Malicious PDF — malware analysis report

Static analysis result for SHA-256 69caf0daf02bac31…

MALICIOUS

PDF

76.3 KB Created: 2021-05-20 21:21:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: aac30437353e7f509b9d4786594fa89d SHA-1: 532bc4b29f23a172bb2c4eedf38d3cbfafa1498c SHA-256: 69caf0daf02bac31a1e301a483eb321a8698398646a84a953bbede144874c4a8
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL points to a suspicious domain, likely a phishing or malware distribution site. While no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest an attempt to redirect the user to this external resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://botokaw.ru/strik?utm_term=how+to+work+a+power+pressure+cooker+xl
    • https://cdn-cms.f-static.net/uploads/4369656/normal_5fd3b83ee3b15.pdf
    • https://cdn-cms.f-static.net/uploads/4405654/normal_60518d5eec002.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/496a6b9a-2095-493a-be65-04969407219c/rinnai_wall_heater_instructions.pdf
    • https://uploads.strikinglycdn.com/files/beba4f73-b6a7-4c09-aaf8-959dee7a30a8/83074762155.pdf
    • https://uploads.strikinglycdn.com/files/02db174f-907e-4474-8642-fa340b0fa1e2/70849106463.pdf
    • https://uploads.strikinglycdn.com/files/267f7500-523c-4fc7-8ee5-e4cecebac41a/vokifiw.pdf
    • https://uploads.strikinglycdn.com/files/1e5a226d-dc62-4711-aba4-bf118170fccf/the_hobbit_full_movie_in_hindi_free_download_hd.pdf
    • https://uploads.strikinglycdn.com/files/d41b6f69-6ac1-411f-8cd0-511c92943164/vopajoxesav.pdf
    • https://s3.amazonaws.com/xidazeze/6302251706.pdf
    • https://s3.amazonaws.com/kefefetafij/42748053039.pdf
    • https://s3.amazonaws.com/lakujusitejojet/c._g_song_dj_remix.pdf
    • https://s3.amazonaws.com/jazofi/18535553739.pdf
    • https://uploads.strikinglycdn.com/files/e84875e7-ca2b-4897-9c6b-6cce77cce53a/mn_dmv_drivers_license_test_locations.pdf
    • https://uploads.strikinglycdn.com/files/8dd1b0de-43bd-4c7c-b94a-7f3682449c93/pixoropoxutabosogubo.pdf
    • https://s3.amazonaws.com/rupatojuko/22812580535.pdf
    • https://s3.amazonaws.com/rewepalazamiso/como_desarrollar_un_algoritmo_matematico.pdf
    • https://uploads.strikinglycdn.com/files/6c9b8272-1b4e-4b11-952b-be01d9079203/75955390452.pdf
    • https://s3.amazonaws.com/fekife/809069573.pdf
    • https://s3.amazonaws.com/zijivevip/betuke.pdf
    • https://uploads.strikinglycdn.com/files/9a6dfa53-9ffe-49c0-8347-e1c64f8165cd/h2o_mop_x5_5-in-1_steam_cleaner_with_accessories.pdf
    • https://uploads.strikinglycdn.com/files/d55781ad-b47a-4693-91e5-878273d5e7c8/77316861950.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000efa1.bin
4daacc102463ad2ca7e3d5b61e626371c7b8bdaced204c3709a83095589f3db3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEFA1 5112 bytes
font_01_sfnt_off00010125.bin
88984d4eb94af9c64ff94baa92dec21b2303f0d922f9f0655889e2912751c647		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10125 10108 bytes

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