Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7926ab573709601…

MALICIOUS

PDF

73.2 KB Created: 2021-03-21 11:23:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d312d3b4ba3d543ac5f7e26fb1257483 SHA-1: 16d92b084c761170c116e7416cbde38e15193efb SHA-256: b7926ab573709601d32e53a8689420e6394a4f53916cc9ccb30cf194c6740405
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, which is highly indicative of a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support the malicious nature of this file. Although no scripts were explicitly extracted, the presence of external URIs and the overall detection suggest the document is designed to redirect users to malicious content, likely for credential harvesting or further malware delivery.

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://midufefew.ru/award?keyword=anatomy+and+physiology+of+the+heart+and+circulatory+system+pdf
    • http://teachost.com/curing_of_concrete_ppt_reportu53xr.pdf
    • http://moresukko.ru/speed_queen_washing_machine_lint_filtergrlui.pdf
    • http://wekeb.space/fifty_shades_freed_full_movie_hindi_filmywapb9f28.pdf
    • http://koprovk.xyz/les_3_mousquetaires_film_2020dxuwa.pdf
    • http://visiblawty.com/how_to_become_a_licensed_private_investigator_in_louisianarv11n.pdf
    • http://bigwin-1xbet.fun/sentence_structure_checker_simple_compound_complexc5oww.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/waduzirader/honeyguide_khoka_moya_contact_details.pdf
    • https://s3.amazonaws.com/mawesenasijoser/88925658156.pdf
    • https://s3.amazonaws.com/kavalukato/jofewitariwedop.pdf
    • https://s3.amazonaws.com/jamuluvuvava/how_much_does_a_manager_at_a_restaurant_make.pdf
    • https://s3.amazonaws.com/jasipefulaxiduj/timeline_template_pptx_free.pdf
    • https://s3.amazonaws.com/zuxime/kigiboranebejizudowiguduz.pdf
    • https://s3.amazonaws.com/panalipolifod/52592137034.pdf
    • https://s3.amazonaws.com/dazinibonofobi/bridgeport_public_schools_directory_and_street_guide.pdf
    • https://s3.amazonaws.com/warapagefasovi/wirojiwirubijaxed.pdf
    • https://s3.amazonaws.com/memobofilenabon/tamil_drinking_video_songs_free.pdf
    • https://s3.amazonaws.com/gotitibekovi/42192844433.pdf
    • https://s3.amazonaws.com/tajimipojimo/futikevasoxuxap.pdf
    • https://s3.amazonaws.com/fejififimaketo/call_transunion_credit_reporting_agency.pdf
    • https://s3.amazonaws.com/xoferuzu/visamodalovuxerezubimof.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_off0000e0fa.bin
d7607f1f176d75b6d4f90a42393d394e5be5d77bd879d9903da06c9c605bb0bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE0FA 5660 bytes
font_01_sfnt_off0000f41e.bin
75ce25dbd02b26264e59ceccdd6eff7296562984f3de33cadca18da94b3e338e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF41E 10224 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.