Malicious PDF — malware analysis report

Static analysis result for SHA-256 f190b22d5dbe0070…

MALICIOUS

PDF

72.7 KB Created: 2021-03-12 05:41:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: cdb66fd77358883ee53cac0325dde337 SHA-1: 93599c3bf41a15cc9d941dd1f985fdf88e58a9cc SHA-256: f190b22d5dbe0070295c8ca0cdc8d8c5bb5183e6006083b96702324b9c2cc169
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 0.9996

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://dugedepap.ru/wix?keyword=run+3+66+at+school+unblocked+games PDF link annotation
    • http://sukutoxuwurif.mywebcommunity.org/36331044981.pdfIn PDF document text
    • http://rejorevubirobu.sportsontheweb.net/arquitectura_barroca_italiana.pdfIn PDF document text
    • https://cdn.sqhk.co/nuzifixe/djfGhaR/togukawuberageko.pdfIn PDF document text
    • https://cdn.sqhk.co/bugininaxi/ln6Pv26/3154684041.pdfIn PDF document text
    • https://cdn.sqhk.co/wexufenu/cjbThf6/ragufo.pdfIn PDF document text
    • http://nezowigivomi.scienceontheweb.net/2013_subaru_impreza_hatchback_speaker_size.pdfIn PDF document text
    • http://nezowigivomi.scienceontheweb.net/48005291596.pdfIn PDF document text
    • https://cdn.sqhk.co/devisofage/mjciD82/98402850276.pdfIn PDF document text
    • http://xinuvaro.sportsontheweb.net/929927364.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/f413528f-e828-49c3-a4f1-444f3d0b3000/keroxijalonuvabofizekat.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2827a73c-e75c-4cba-89fa-d28707a98502/80228386354.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/12100e9b-80be-45dc-8a4a-8e2f870f9742/87382880302.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9cc60181-00af-4af5-8881-e7f32a9c3a60/88216856703.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a72144a0-83c6-4587-b30b-90f08270c593/contrato_de_alquiler_de_casa_ejemplo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/18fbc3a8-9aea-4646-8ac7-703d8e82f6a0/lifera.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/650ca67e-ccc1-4499-9c5b-d8af5af47dd5/finimudomisojafupuza.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/479f32db-375d-4992-899c-918b305465ca/attack_on_titan_season_4_manga_box_set_release_date.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/03042f2b-da2a-4fbe-9734-f048a907cb5d/vuzatevoraminuwexugu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f286dae0-f5d6-4197-80d1-eadd4fc928ac/lg_nexus_5x_release_date.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a84cc06-b9a8-4e1a-8cdd-1d61a2c6606c/the_great_gatsby_vocabulary_quizlet_chapter_1.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c2eb9856-58fa-4d64-9d43-1030b830fb62/6768526124.pdfIn PDF document text
    • http://sokekakeloji.onlinewebshop.net/midnight_sun_stephenie_meyer_date_de_sortie.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_off0000df14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF14 5788 bytes
SHA-256: 6baf3119e0b437c00c464fa9d9414875dcbecaa9b36c00d13bb265c958727c79
font_01_sfnt_off0000f2a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2A0 10148 bytes
SHA-256: bc1efc749b0096c96bf48602d710d19afda96a618e9b3814f1dd3e9a5f0c8f06

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