Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0fc3657fe61811b…

MALICIOUS

PDF

74.3 KB Created: 2021-03-11 20:32:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 188f2e02fd625eb88f0dae675e366003 SHA-1: 3f159fb815ea42cdff47959b8b03bb75c258b586 SHA-256: e0fc3657fe61811b836708e3dd42d970653d75ade6b492c5c612679b7f9d8e1d
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 0.9997

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://vilenefex.ru/award?keyword=walden+henry+david+thoreau+pdf+download PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4447626/normal_60242791e45f5.pdfIn PDF document text
    • https://cdn.sqhk.co/rapovixovuti/heWid42/sound_effect_dj_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414696/normal_602a01214037e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366354/normal_5fcf395732b8d.pdfIn PDF document text
    • https://cdn.sqhk.co/xawodoze/hgKnWCv/texas_parent_connect_hisd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402533/normal_60289aa004e72.pdfIn PDF document text
    • https://cdn.sqhk.co/dilizilozok/jajagie/soxikigizixos.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379030/normal_603f2186ccc5e.pdfIn PDF document text
    • https://cdn.sqhk.co/gepeduvo/R2ggbih/kefatobalejatu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365589/normal_602d5366da0d6.pdfIn PDF document text
    • http://xonibiz.22web.org/lonodelufax.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450638/normal_5fe2ee1c5e22e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xowepiguxuwo.epizy.com/16759036514.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cad9a383-aed8-4b0a-81ba-ebe8c65e3892/war_of_the_worlds_2019_season_2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2873cff4-8e14-420b-a89e-90d70b3f6b8a/what_are_the_new_california_laws_for_2020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f2b1d54-7a36-40ed-88d4-d356a43f0cba/radio_shack_scanner_mods.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5b0c0d22-2de6-4fde-8938-0e9f276138b7/55046773656.pdfIn PDF document text
    • http://lixazavifamu.rf.gd/86496004142.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/317a5cba-b70c-4208-b05d-87f0115da601/kanemekemodalinem.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5dea61cb-e84c-4857-b9b3-7425b3e09cbf/how_do_i_fix_a_failed_bios_update.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ad0a863-2f9c-4790-a396-dc57dfda140f/gary_paulsen_hatchet_books_in_order.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e318.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE318 5220 bytes
SHA-256: 766c5e8edc1f144e299733084bc2001bc2b0d09cad8c0e5131f4d96bff492838
font_01_sfnt_off0000f4f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4F4 12056 bytes
SHA-256: 3073a6723f25706c3e51efbf1fac86bdbbfb24355731a8118a48b5b882a9e245

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