Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a80868f9da16ccb…

MALICIOUS

PDF

77.1 KB Created: 2021-03-28 17:42:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 94e2c44ded5e0dcc4d02359f8a78c4ec SHA-1: 5554d32dcab77cbf6c0722ea78e70e4edb517912 SHA-256: 1a80868f9da16ccb3c71b454212b2b0283e0e262ddeeb107ae1fc36f89fad57e
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 0.9995

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://vilenefex.ru/wix?keyword=vw+new+beetle+repair+manual+free+download PDF link annotation
    • http://indonesia2health.online/zeranunufakojr8.pdfIn PDF document text
    • http://newutatokulu.getenjoyment.net/distress_tolerance_skills_workbook.pdfIn PDF document text
    • http://lunatan.medianewsonline.com/blue_iris_software_update.pdfIn PDF document text
    • http://goldstein.berlin/jepozotugofqbyu7.pdfIn PDF document text
    • http://flathead.us/dreams_of_dead_loved_onesaypbx.pdfIn PDF document text
    • http://magnifioco.site/dd_3.5_elder_evils_downloadrv470.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/tuzamada/nikotubogijusife.pdfIn PDF document text
    • https://s3.amazonaws.com/wozowuledij/anticonformiste_definition_courte.pdfIn PDF document text
    • https://s3.amazonaws.com/tigewibejageju/80902291619.pdfIn PDF document text
    • https://s3.amazonaws.com/matogapibelifiv/tp-link_tl-mr3020_price_in_bangladesh.pdfIn PDF document text
    • http://masemipeba.myartsonline.com/pazuzebura.pdfIn PDF document text
    • https://s3.amazonaws.com/waxapoz/austro-_hungarian_empire_military_uniforms.pdfIn PDF document text
    • https://s3.amazonaws.com/xukonakefules/coffee_day_enterprises_annual_report_2017.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0d082319-c33d-4a20-8ded-095d2127b028/non_verbal_reasoning_practice_test_11.pdfIn PDF document text
    • https://s3.amazonaws.com/midizaxopazeji/47105866051.pdfIn PDF document text
    • https://s3.amazonaws.com/fajetufekejo/how_to_use_crock_pot_to_cook_rice.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/835f9ba8-c466-497d-8032-180063c6ee85/puvix.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a592c70f-dbc4-4bdb-aac6-94c71e638583/driving_in_japan_street_signs.pdfIn PDF document text
    • https://s3.amazonaws.com/bulozor/wow_breaching_the_tomb_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/vapite/zotiv.pdfIn PDF document text
    • http://kubomefewofumim.atwebpages.com/development_economics_journal.pdfIn PDF document text
    • https://s3.amazonaws.com/punurum/why_transformation_efforts_fail_harvard_business_review.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_off0000f264.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF264 5204 bytes
SHA-256: 65d42f4d23bbb2cd9ac8efb335aefbfa0cae6d2107b87aa7c86cdd195ba13fce
font_01_sfnt_off0001040f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1040F 10076 bytes
SHA-256: a5f346fc65bd0f3ddbdd13998ff201dc07a205914c09819f0d2dab067a716331

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