Malicious PDF — malware analysis report

Static analysis result for SHA-256 b97b48ed88b5942d…

MALICIOUS

PDF

87.0 KB Created: 2021-03-26 09:30:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 25d026b76e9d966dae1a2ba0e2b136c0 SHA-1: 1086889b9ccf8b2350961684a8490f2ea50250f1 SHA-256: b97b48ed88b5942d48284c54475c8274ae104d852b1733545522b1fc92adefaa
96 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 embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://nipisod.ru/123?utm_term=after+effects+wedding+templates+shareae PDF link annotation
    • https://cdn.sqhk.co/lilovenodi/hiijibo/cat_goes_fishing_download_2019_android.pdfIn PDF document text
    • https://cdn.sqhk.co/kepozote/Sicq8hf/deep_air_strike.pdfIn PDF document text
    • http://dusefibesix.iblogger.org/kuwarojude.pdfIn PDF document text
    • https://cdn.sqhk.co/kobewudojuvo/eokaheh/lenixekomibojumugit.pdfIn PDF document text
    • https://cdn.sqhk.co/gifexajed/gXfwuhb/64892139526.pdfIn PDF document text
    • https://cdn.sqhk.co/rifojimuna/ihYggih/61672836128.pdfIn PDF document text
    • https://cdn.sqhk.co/xenudipu/djjpSjh/dulofubitota.pdfIn PDF document text
    • https://cdn.sqhk.co/wolebiduju/eagfgj8/90192029917.pdfIn PDF document text
    • https://cdn.sqhk.co/puzadowoke/kkicdjj/14648635630.pdfIn PDF document text
    • https://cdn.sqhk.co/vozaxodep/cjhONic/to_the_moon_and_back_movie_review.pdfIn PDF document text
    • https://cdn.sqhk.co/zesozote/jAggxp0/basketball_extra_time_rules.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/cc6a0327-4980-469f-864d-e7e6e16805b5/18849427839.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e5ae16af-9a02-4c0c-b929-7886bdc5746c/by_the_shores_of_silver_lake_audiobook_youtube.pdfIn PDF document text
    • https://s3.amazonaws.com/wujodibu/insuficiencia_cardiaca_congestiva_diagnostico.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a3cb3022-94d2-4f0f-aed6-3b3c293ad7ed/56006236537.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3fe594c2-e14b-4af7-869a-435da74bc4c6/bluestars_prophecy_characters.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c240cb3e-1eb2-452e-842f-1105f4c1aee8/exercises_in_style_raymond_queneau.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7d23cd12-2d49-4ef5-ba07-307fc8e2c3ec/fractal_fx8_vs_helix.pdfIn PDF document text
    • http://zusirana.rf.gd/popular_hobbies_word_whizzle_search_answers.pdfIn PDF document text
    • http://giduzorim.epizy.com/camera_raw_photoshop_cs4_mac.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1e9d71ff-ebd0-40f0-8ec9-4d660601fe1b/faure_romance_sans_paroles_op_17_no_3_partition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f38841d-8b49-445e-8e5a-23a07eaf5f72/79892540088.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b658ed85-d5f3-49ae-b5d4-338753ccf2f8/sininodavan.pdfIn PDF document text
    • https://s3.amazonaws.com/kufazete/painting_brown_cabinets_black.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_off00011263.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11263 5652 bytes
SHA-256: cfd38b3dfd0a60d34c08e5c1ec6931a37ea107bb7a961eebd7814ff9a61b9906
font_01_sfnt_off00012586.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12586 11956 bytes
SHA-256: df3bcdb80655e02208bc45e4df9cdedefc834bcc256cdd1edfbe22aadc1f8d49

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