Malicious PDF — malware analysis report

Static analysis result for SHA-256 30368e1971ccd6ef…

MALICIOUS

PDF

73.2 KB Created: 2021-03-02 05:48:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 11621a923c2fc9754b809f0351b18fe9 SHA-1: 44cf020229bd07afe6f3f670ad7834904675b384 SHA-256: 30368e1971ccd6efa61e1cd0c9b23b759e3fdca86a75161c854569f46fb0ba4e
96 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with the primary one appearing to be a lure related to a game search query. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to potentially malicious websites, likely for phishing or malware distribution.

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://midufefew.ru/award?keyword=shadowrun+hong+kong+best+class
    • http://wugupomovupa.sportsontheweb.net/can_you_keep_a_secret_sophie_kinsella_jack_harper.pdf
    • http://winnerslm.space/funny_images_for_whatsapp_status_in_englishne1cj.pdf
    • https://cdn.sqhk.co/vefapatape/fhhgeMP/american_basketball_playoffs_mod.pdf
    • http://vilopeg.xyz/what_are_product_service_codes1at1t.pdf
    • https://static.s123-cdn-static.com/uploads/4379374/normal_5ff7744ddfc2d.pdf
    • http://okrasote.info/bootable_usb_windows_7_repairqb1hp.pdf
    • http://interstart.online/wemuwojukenimemovophj1c1.pdf
    • http://slimerecipe.org/walmart_black_friday_online_shoppinghqpcn.pdf
    • http://goginexoze.22web.org/42914291809.pdf
    • http://fabimepela.22web.org/q_see_support.pdf
    • https://cdn.sqhk.co/bokapapukopa/KjbjdR7/ravanofupezuw.pdf
    • https://cdn.sqhk.co/pininipata/gBigGYk/survivor_adventure_survival_island_mod_apk_rexdl.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://sonisan.epizy.com/jupiter_merlin_balanced_portfolio_factsheet.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_off0000e18f.bin
584a817c47a8891ebda4de52b0badb155e5f2cdc3bf39caaf96fd38979689d7d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE18F 5600 bytes
font_01_sfnt_off0000f4a6.bin
97fa72964b771903a3a056c94842f0f5b12ba12faa704846edf0397254f65d0e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF4A6 10368 bytes

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