Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee2dcfd42f942696…

MALICIOUS

PDF

81.3 KB Created: 2021-03-23 01:46:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4b2d436b604c6bdfbbda8bfe01240eec SHA-1: d06b74d4ab560a57d15150e977fbb4a1089e0e37 SHA-256: ee2dcfd42f942696de56948391e34af1c5356e9c817f53ea961f9412208f6078
96 Risk Score

Malware Insights

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

The file was detected as a malicious PDF by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an external URI pointing to a URL that appears to be a lure for downloading a PDF, likely containing malware. The presence of embedded URLs further supports the phishing or malware distribution vector.

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://lozipotod.ru/award?keyword=characteristics+of+charismatic+leadership+pdf
    • http://maewallace.com/93129686167egpzk.pdf
    • http://kovamuwaropepu.getenjoyment.net/pipetedeti.pdf
    • https://cdn.sqhk.co/bujiwamovul/jhebkgh/98392661911.pdf
    • http://svarka-aurora.online/2018_vw_tiguan_maintenance_schedule_canadalbq82.pdf
    • https://cdn.sqhk.co/loganidob/2AyjdYo/the_game_of_life_free_android.pdf
    • http://groby-ritual.online/best_dance_in_africa_20206ai4n.pdf
    • https://cdn-cms.f-static.net/uploads/4444622/normal_6026883a156d3.pdf
    • http://flowerport.shop/distributed_systems_principles_and_paradigms_pptpoxb9.pdf
    • https://cdn.sqhk.co/ditetona/TPAkoNv/the_simpsons_tapped_out_hack_ios_cydia.pdf
    • https://cdn-cms.f-static.net/uploads/4370087/normal_6032caca622cc.pdf
    • http://reduslimitalia-ufficiale.site/11405758151qeuvj.pdf
    • https://cdn-cms.f-static.net/uploads/4377933/normal_600dc78ac15f0.pdf
    • https://cdn-cms.f-static.net/uploads/4479916/normal_60442ecbaac49.pdf
    • https://cdn.sqhk.co/fukonovum/e047gfd/silver_dollar_city_discount_tickets_aaa.pdf
    • http://zarewubizeno.mywebcommunity.org/71953055117.pdf
    • https://cdn-cms.f-static.net/uploads/4483854/normal_602d3b4e1cb75.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/pegek/57200645227.pdf
    • https://s3.amazonaws.com/dapekufoxiraku/pudowuregasojo.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_off00010310.bin
348c87519694ca8e3502dab4be176d99cb50025abf87d5c4bf0ec4764c96d5fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10310 5300 bytes
font_01_sfnt_off000114e2.bin
3ec5e91786f89c4403fcb82a580cdb6f45c1740106703de8ae68d27267edbc3f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x114E2 10304 bytes

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