Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf425010653a6958…

MALICIOUS

PDF

76.1 KB Created: 2021-03-14 11:56:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: ec3188f58bcbd39b54b9d4ee49bdc0f0 SHA-1: 7d1999a9eaac3fe313e9218680dffee4acac4555 SHA-256: cf425010653a69589d8d70f526a6056d5646d670cc8f0c852491c14b82bfa1d1
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to trick users into visiting a malicious site, potentially leading to further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://bologen.ru/strik?utm_term=can+i+watch+game+show+network+on+roku PDF link annotation
    • http://remontlegko.info/raymarine_e80_chart_cardr0m22.pdfIn PDF document text
    • https://cdn.sqhk.co/vedimofaw/aejeMhg/cfa_level_1_material.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404514/normal_6016c67b257b1.pdfIn PDF document text
    • http://poradoit1.site/airbrush_easy_photo_editor_mod_apk_download9jkue.pdfIn PDF document text
    • http://pajopoxofof.iblogger.org/whirlpool_quiet_partner_ii_cycle_time.pdfIn PDF document text
    • https://cdn.sqhk.co/dafibuxoki/ieigigT/airtycoon_4_aircraft_list.pdfIn PDF document text
    • http://carbackseat.site/zasuvasojiralosuxidef0zqr2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417046/normal_5fd6287379cf0.pdfIn PDF document text
    • https://cdn.sqhk.co/lajawawinu/hjjisgf/my_electric_meter_has_gone_off.pdfIn PDF document text
    • http://lebojabufi.medianewsonline.com/the_bloody_countess_alejandra_pizarnik.pdfIn PDF document text
    • http://blablablacar.online/gojutafusixebakosikasalungxlc8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470380/normal_5fdd34795a764.pdfIn PDF document text
    • http://kuvuradivikosef.iblogger.org/83627159024.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500669/normal_6044dab33093f.pdfIn PDF document text
    • http://finipupote.mywebcommunity.org/lapepiki.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490377/normal_6019ba5464c55.pdfIn PDF document text
    • http://afracheat1.xyz/rabonizeterxshh.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/rolefosiju/voter_list_rajasthan_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/ragejufa/nowarakudomifanafelidije.pdfIn PDF document text
    • https://s3.amazonaws.com/nefomojuwet/ark_survival_evolved_mobile_hack.pdfIn PDF document text
    • https://s3.amazonaws.com/gezetega/86466437646.pdfIn PDF document text
    • http://misanedajog.myartsonline.com/wonivezejiwep.pdfIn PDF document text
    • https://s3.amazonaws.com/wozowuledij/neverending_story_lyrics_meaning.pdfIn PDF document text
    • http://fanunif.rf.gd/how_much_is_a_hotsy_pressure_washer.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_off0000ec81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC81 5244 bytes
SHA-256: 5f14cfcf4f1745dac7dac29d29d3860de4f6df0e842f23613b49a1f272031a82
font_01_sfnt_off0000fe3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE3A 10820 bytes
SHA-256: aafefd16a59aa32b50c9e1e83ac1312468a4dbd9c4dc91609b1080a97ab30554

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