Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd78f31c6d1327d6…

MALICIOUS

PDF

75.5 KB Created: 2021-02-24 04:56:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 46070b8124b111c587cad804e7aee4c4 SHA-1: d0209d3b14603bcb61f0164304a7afa014f99e51 SHA-256: fd78f31c6d1327d6012cec9f6ece68ce3e52a3e929b5cf8dedd5e84b5cce93de
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'https://maypoin.ru/wix?keyword=lantern+oaths+dcuo', which is a strong indicator of a phishing or malware distribution attempt. The PDF structure and embedded URLs suggest it's designed to trick users into visiting a compromised site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://maypoin.ru/wix?keyword=lantern+oaths+dcuo
    • http://fudidudigas.iblogger.org/digital_designs_6.5_door_speakers.pdf
    • http://armlur.space/rugaxoxobajibotuzalyr85.pdf
    • http://prodive.su/what_are_the_roles_and_responsibilities_of_a_special_needs_assistantsw2cp.pdf
    • https://cdn.sqhk.co/kamavedes/vggjbck/death_invasion_mod_apk_latest_version.pdf
    • http://strapslap.online/macrium_reflect_71r08n.pdf
    • https://static.s123-cdn-static.com/uploads/4484093/normal_5ff29df398b68.pdf
    • https://cdn.sqhk.co/jaxabofapuw/2jhnKei/sausage_dog_running.pdf
    • http://sosed.market/954486735549pbjt.pdf
    • http://mrshadow.net/40209216391j217p.pdf
    • https://cdn.sqhk.co/xumirikebixo/gfrichf/commando_raids_world_war_2.pdf
    • http://usecabinets.xyz/baidu_browser_apk_freei118p.pdf
    • http://ujjjrrrrr.space/nourishing_traditions_bread_recipedg2q9.pdf
    • http://whitecheat.xyz/gartner_magic_quadrant_erprqonx.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • 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_off0000eb84.bin
d87741b91df1d2719ac4d23cd6c4ea7058c3f3df3c6fef25894a38bd6903d3ca		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEB84 4936 bytes
font_01_sfnt_off0000fc46.bin
a173b691a551ec7f7fbd37aef53c4ed28193d2b0adeeca05c470a65d877f631b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFC46 10856 bytes

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