Malicious PDF — malware analysis report

Static analysis result for SHA-256 16c5ed7653333a8c…

MALICIOUS

PDF

76.4 KB Created: 2021-03-30 19:30:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 4c376f208fa72501a91e053b5786fc09 SHA-1: 64c922ba15cb41501f3a297cf43d32350e9be701 SHA-256: 16c5ed7653333a8c4bfe062398e4fc298e724b610c4f941bbab04dbfd9fbe371
104 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

The file is a PDF document that contains an embedded URL pointing to a suspicious domain, likely intended to trick the user into downloading a malicious application. ClamAV detection and ML classification strongly indicate malicious intent, aligning with a phishing or malware distribution tactic. The presence of a visual download button further supports this attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wix?keyword=blocky+cars+mod+apk+7.1+7 PDF link annotation
    • https://cdn.sqhk.co/rivogigaweb/fhiOYif/fruit_cutter_game_app.pdfIn PDF document text
    • https://cdn.sqhk.co/jugomuzuteb/heJEqjg/28512314268.pdfIn PDF document text
    • https://cdn.sqhk.co/wisewuguv/iigNEhe/nogesuluk.pdfIn PDF document text
    • https://cdn.sqhk.co/rewazexi/igeubhc/fagelajoxe.pdfIn PDF document text
    • https://cdn.sqhk.co/bevoroxur/h1gh3hd/translate_spanish_menu.pdfIn PDF document text
    • https://cdn.sqhk.co/gutipefu/edhd7jh/remupavavip.pdfIn PDF document text
    • https://cdn.sqhk.co/soxesemu/jihjged/open_world_games_top_100.pdfIn PDF document text
    • https://cdn.sqhk.co/kenipafitu/jjDgh12/best_history_of_rome_documentary.pdfIn PDF document text
    • https://cdn.sqhk.co/dibirolinu/KgidMjg/jipenapuba.pdfIn PDF document text
    • https://cdn.sqhk.co/vibebexez/REgcJ6o/24561110120.pdfIn PDF document text
    • https://cdn.sqhk.co/guzunilepin/f7gifib/24133323543.pdfIn PDF document text
    • https://cdn.sqhk.co/zapusukajev/k1ohehh/labifisonevareju.pdfIn PDF document text
    • https://cdn.sqhk.co/gemesikexo/ibHgcjg/yellow_striped_wallpaper_uk.pdfIn PDF document text
    • https://cdn.sqhk.co/xaranoraf/A7xoghg/39780352287.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/a722b0c2-2525-47df-ab8d-765490987c18/42202143810.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5055579b-bce9-4d43-b16b-89d240c22d6b/what_is_the_meaning_of_mystical_body.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7561ad36-43d3-4049-8c9e-7ce26b453255/10121191077.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95fc4793-7e58-47f7-a6ae-bf779646929b/who_is_lyra_in_the_golden_compass.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0de3c4ea-ecef-43ba-92df-8f5cabcf3b69/maschine_mikro_software.pdfIn PDF document text
    • https://s3.amazonaws.com/tuzamada/85263795872.pdfIn PDF document text
    • https://s3.amazonaws.com/wazagidonux/dying_to_be_me_ted_talk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c605cf5-8d98-468a-862b-c23b0403418e/argumentative_essay_topics_for_elementary_school.pdfIn PDF document text
    • https://s3.amazonaws.com/jonora/32106254211.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1bb0a845-3f4e-4e8e-874c-f8573a47bbfc/rolemorubodipupa.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_off0000ed9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED9F 5596 bytes
SHA-256: a0fdf092d77b3bdc5b214b5bd703924a67b64678ee7e8eabdd2ea0b0f8b27259
font_01_sfnt_off000100af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100AF 10324 bytes
SHA-256: ad957682189dc915818015d329238d9a03f36cac16e68eba2e6de2f3b71019f1

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