Malicious PDF — malware analysis report

Static analysis result for SHA-256 03b51b10f9250d52…

MALICIOUS

PDF

73.2 KB Created: 2021-02-26 06:24:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5d70101e04af0b25d6c62e1e88b1cb86 SHA-1: cd788bd211022a3c2334786b982e5863b568ab45 SHA-256: 03b51b10f9250d521e6563e02115e75857c407e6c8636d9106d3019f8b93c0c4
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that mimics a search result for 'Civilization 5 guided missile', likely intended to trick users into clicking it. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. The presence of multiple external URLs suggests a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jacksth.ru/wix?keyword=civilization+5+guided+missile
    • https://cdn.sqhk.co/ditutafewaw/8JcbgAw/pejoragedexawadozasune.pdf
    • http://xitawefavam.medianewsonline.com/63342548457.pdf
    • https://cdn.sqhk.co/sipobufiw/ixijjgE/vova_app_legit.pdf
    • http://kutatit.getenjoyment.net/expert_card_technique.pdf
    • https://cdn.sqhk.co/novigigexuxo/gc4njdA/gabavuxanixavaruziwilo.pdf
    • https://cdn.sqhk.co/jisepozidis/ggqatbV/fall_guy_video_game_switch.pdf
    • http://puwexakibo.iblogger.org/81389228843.pdf
    • https://cdn.sqhk.co/bebomopakax/jhiilif/wasarugisevaz.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://donijexufenu.onlinewebshop.net/16464927531.pdf
    • http://fapomotomojopog.epizy.com/48669678329.pdf
    • http://siwojanapav.epizy.com/jemefemevakageguziva.pdf
    • http://makakanow.onlinewebshop.net/how_to_become_successful_in_network_marketing_business.pdf
    • http://bofetotazefonuv.epizy.com/26._5_apostrophes_practice_1_answers.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e253.bin
3f4142b9ede014ccd0ca476a45ba3b4b49febbc21fe12ffec12e16df732fefa7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE253 5188 bytes
font_01_sfnt_off0000f3f7.bin
b7ef3871e60674b67b2806be20b4cfe3b0047841064b0e5a7defda4c2189a2b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF3F7 10632 bytes

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