Malicious PDF — malware analysis report

Static analysis result for SHA-256 5395b5c62bec6e79…

MALICIOUS

PDF

83.2 KB Created: 2021-03-21 07:19:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e5b7c9af8d4290205fdf0dfa7c3c2208 SHA-1: 7035eb4bd6dadf5403bd91e6bf332c36808ceca1 SHA-256: 5395b5c62bec6e793d1267826f51188f9a22c7c426c7030c1bbf2be9f3415234
104 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is a PDF that contains a lure for downloading a GTA 5 APK. It embeds a URL that points to a suspicious domain, likely serving as a downloader for a malicious payload. ClamAV detection and ML classification strongly indicate malicious intent, aligning with a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://crophysi.ru/wix?keyword=gta+5+apk%252Bdata+zip+600mb PDF link annotation
    • http://solifixogalek.mypressonline.com/eclectic_approach_in_social_work.pdfIn PDF document text
    • http://sosiwawivijomo.scienceontheweb.net/karpman_triangle.pdfIn PDF document text
    • http://xojavuwolow.22web.org/79333098089.pdfIn PDF document text
    • http://palawawez.mypressonline.com/adrianne_holt_regresa_a_mi.pdfIn PDF document text
    • http://wasatosu.sportsontheweb.net/sobewepizezomozufime.pdfIn PDF document text
    • http://worelimupuvefam.mywebcommunity.org/how_to_use_a_scosche_wireless_car_charger.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fataragoreb.myartsonline.com/xasikajanugij.pdfIn PDF document text
    • http://bifovigavij.myartsonline.com/68750592622.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0898c2c8-ca7f-4e63-ab59-1d5193c3a76d/xomozunipaxipewofiv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cdee1851-2294-4f2c-bb11-e3f2678686f5/the_invisible_man_hg_wells_quotes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3b6debbc-9fb9-4a99-8ab7-dae9e7e3bab6/tojesuwidumanudisew.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/36af95bf-dbd7-4aac-8474-733435523069/how_to_connect_turtle_beach_x12_to_xbox_one.pdfIn PDF document text
    • http://dubomebivenu.epizy.com/base64_decode_image.pdfIn PDF document text
    • http://karokifewugasuz.onlinewebshop.net/diagnostico_educativo_definicion.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/479a6e45-18d3-4768-92f9-296c522b6682/dell_inspiron_570_drivers_windows_7_64_bit.pdfIn PDF document text
    • http://bitines.myartsonline.com/mossberg_930_magazine_extension_canada.pdfIn PDF document text
    • http://mogixos.atwebpages.com/ars_poetica_analysis.pdfIn PDF document text
    • http://dubanexotokegel.myartsonline.com/96989404039.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7aa80004-4551-45f7-bbd1-551961cd8b6a/xumoperevamivi.pdfIn PDF document text
    • http://posikin.myartsonline.com/balafejowimidegi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d76954f7-efda-484d-bca5-a030d26799aa/34085521611.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f148.bin
12dcbdf6bf5b3c2be590eb9cfb77d475b75a3384746b4bf7cd180e73d6db3119		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF148 5504 bytes
font_01_sfnt_off000103fc.bin
64de2984b1f7ea54333cf63b1c55539ddf607d9851c26da0d7ffd347db493e83		 pdf-font-stream PDF embedded font (sfnt) at offset 0x103FC 10996 bytes
font_02_sfnt_off000129f9.bin
43254c6337662e76ed67025008a42d76121bee43b935a85a5f582473253d5118		 pdf-font-stream PDF embedded font (sfnt) at offset 0x129F9 16096 bytes

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