Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c05eb332bc7a95a…

MALICIOUS

PDF

90.7 KB Created: 2021-03-25 08:28:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2a76d1caad1d2c20a58c9c15f907c350 SHA-1: 8ead8bdae176130f7af3bd3e241f9f65c073b012 SHA-256: 8c05eb332bc7a95a7fc54dbb5161d6fa2bdc61806170c135e8649a17afd49aa1
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that directs users to a website offering a hacked version of a game. This URL, 'https://leonvi.ru/wix?keyword=cartoon+wars+3+hacked+apk+for+android', is the primary indicator of malicious intent, likely serving as a lure for phishing or malware distribution. The ML classifier and ClamAV detection strongly support its malicious classification.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://leonvi.ru/wix?keyword=cartoon+wars+3+hacked+apk+for+android
    • https://cdn-cms.f-static.net/uploads/4426556/normal_60484fdc96439.pdf
    • https://static.s123-cdn-static.com/uploads/4405467/normal_5ffc9c7537437.pdf
    • https://static.s123-cdn-static.com/uploads/4376374/normal_5fcaabd98a90c.pdf
    • http://womenalikumat.22web.org/riwopofujoverup.pdf
    • https://cdn-cms.f-static.net/uploads/4405208/normal_5fd2c400d247c.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://juripijesem.rf.gd/2012_cadillac_srx_shop_manual.pdf
    • http://wowadepadon.rf.gd/30588339647.pdf
    • https://s3.amazonaws.com/pusori/galvanized_sheet_metal_supplier.pdf
    • https://uploads.strikinglycdn.com/files/a5efe5d0-287f-4d85-a16b-e84b0b85ee25/92904586624.pdf
    • https://uploads.strikinglycdn.com/files/c7fccae6-63d6-41ce-ab13-c1e372ec3deb/the_shining_hotel_location_colorado.pdf
    • https://s3.amazonaws.com/tobaziw/26626055555.pdf
    • https://uploads.strikinglycdn.com/files/ca508ffc-81f1-4f93-ad41-ba40dd2168c2/reloading_kits_cabelas.pdf
    • http://pamixawikisif.epizy.com/duke_power_heat_flux_calculator.pdf
    • https://uploads.strikinglycdn.com/files/f55286d0-4d9b-42ea-b54c-0fcb55f6b9d0/best_saltwater_fishing_techniques.pdf
    • https://uploads.strikinglycdn.com/files/6ae7b6bd-849d-4af8-b2a7-53cecd2d9299/sofil.pdf
    • http://wotixoweg.rf.gd/jododupufidotapot.pdf
    • https://s3.amazonaws.com/bulolimepol/autodesk_autocad_architecture_2015_tutorial.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fa1c.bin
22c8f3605a4f45a3ccaaf49fba78b7af269436420245962346384ef1ced3b6e7
pdf-font-stream PDF embedded font (sfnt) at offset 0xFA1C 5684 bytes
font_01_sfnt_off00010df7.bin
28d769804615ee39cb38d0b367aff29272c638b3201eec0e3690eaf636667055
pdf-font-stream PDF embedded font (sfnt) at offset 0x10DF7 5436 bytes
font_02_sfnt_off0001207c.bin
75f10ab303d36959aebf754c0b72bb63d2c9cc18e005440b21a46d85214e807d
pdf-font-stream PDF embedded font (sfnt) at offset 0x1207C 11860 bytes
font_03_sfnt_off000147d7.bin
2c5f1a2e3d9f683f6a217a47aeaaae813f7d4ef732a5ff54a929695507d09140
pdf-font-stream PDF embedded font (sfnt) at offset 0x147D7 16092 bytes