Malicious PDF — malware analysis report

Static analysis result for SHA-256 815de70b16056002…

MALICIOUS

PDF

71.3 KB Created: 2021-03-06 19:14:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 12869f7c2c4bb6ea93627ede470d04a1 SHA-1: 39e8ea3d08c3e459ef3da50d65adb5532977f40f SHA-256: 815de70b16056002bae4da68dac2d6bc9164a4906348f2f537f4c917a3212888
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 0.9993

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://zajinet.ru/wix?keyword=22.2+unsaturated+hydrocarbons+worksheet+answers PDF link annotation
    • https://cdn.sqhk.co/nerawotobiz/nBhfjau/13047601763.pdfIn PDF document text
    • http://wigageturuv.mywebcommunity.org/sijida.pdfIn PDF document text
    • https://cdn.sqhk.co/gegatuzikat/gh9he9t/react_native_drag_and_drop_sort.pdfIn PDF document text
    • https://cdn.sqhk.co/paleguvebo/aQSQJhh/75328577960.pdfIn PDF document text
    • http://numulul.mygamesonline.org/jibapegalexo.pdfIn PDF document text
    • http://gudelew.mywebcommunity.org/xagowene.pdfIn PDF document text
    • http://lojapidabud.mypressonline.com/paxevug.pdfIn PDF document text
    • https://cdn.sqhk.co/balatexoriv/xFhcfjb/nwsl_challenge_cup_final_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/puwidebudojo/hc7ifha/luke_combs_better_together_lyrics_poster.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/zizene/fakuwisasazido.pdfIn PDF document text
    • https://de99c131-68bf-4271-bcef-cda292486844.filesusr.com/ugd/f5892c_5ac96f54fb2c434084439cb9a98fb70d.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/dofufiri/elliptical_galaxy_information.pdfIn PDF document text
    • https://c183b790-cb34-49aa-848e-1a9f2b14dda3.filesusr.com/ugd/d8966e_eb1179c1750a443bb4cc4e4dfdee9e3b.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/dadupawo/request_form_templates_free.pdfIn PDF document text
    • https://s3.amazonaws.com/wefadep/52002132751.pdfIn PDF document text
    • https://75e6061f-eb7a-4ce8-b546-077bf96366c3.filesusr.com/ugd/2dfd19_1a8d304e01f547f0b02175abc8f20157.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c8e0b7f-72b8-4ab9-96fc-7938d2c1f092/48553069575.pdfIn PDF document text
    • https://s3.amazonaws.com/gixirojozogufux/zotixuburisedavan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/789a9e3b-a727-4482-a766-f566726cc2ea/them_belly_full_lyrics_deutsch.pdfIn PDF document text
    • https://s3.amazonaws.com/lakujusitejojet/impact_factor_nature_scientific_reports_2015.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f8900838-725c-4e9c-b08e-2aee57c50092/10166736362.pdfIn PDF document text
    • https://s3.amazonaws.com/sizadagazagaj/casoron_g_safety_data_sheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/47d70cd9-5aa9-4ca7-83d0-2c7d47d94a0f/46590913863.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_off0000d96a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD96A 5460 bytes
SHA-256: 73c76f5455c787ec078eed69c520b2e6a9bbe3f713e7fffba5e7c36769f548f3
font_01_sfnt_off0000ec15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC15 10412 bytes
SHA-256: 4e7a0375cb32a1326838f634f71728747ceb3af9c9f54013fd83101dcde57eec

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