Malicious PDF — malware analysis report

Static analysis result for SHA-256 78e6c8cfde638c6b…

MALICIOUS

PDF

78.2 KB Created: 2021-03-18 14:49:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f9f2b4e2d66881b33bfa5ff6fdd940af SHA-1: 7c7bc810e2547e53352ed4483be10afb53e2c12d SHA-256: 78e6c8cfde638c6b5ac60613751d63b99ef6faf0691f168d1a4b775cac9978b1
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL, disguised as a product review, is a common lure for phishing or malware delivery. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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/wix?keyword=huffy+trail+runner+review
    • https://mapunexi.weebly.com/uploads/1/3/3/9/133999872/xanevasopalipa_molisovapi_pabexoful_forotokanina.pdf
    • https://cdn.sqhk.co/leguzufaju/beIBSpu/black_friday_tv_deals_walmart_canada.pdf
    • http://esportzmlevent.com/how_to_make_vertical_gardening_at_homexxx4x.pdf
    • http://raftgjgr.space/how_do_you_find_angles_in_a_kitexk30d.pdf
    • http://dubiniba.iblogger.org/mcdonalds_uk_application_form.pdf
    • http://world-wildshop.com/que_es_la_neuralgia_del_trigemino32t37.pdf
    • https://cdn.sqhk.co/fitamorigob/gcAgcYH/94082104761.pdf
    • https://sojozukajarab.weebly.com/uploads/1/3/4/2/134265810/temiru.pdf
    • https://cdn.sqhk.co/godajaxox/GNbC9jc/snes_emulator_windows_10_mobile.pdf
    • https://cdn.sqhk.co/pefevepufi/gjheCfB/play_slots_for_real_money_australia.pdf
    • http://aicberg.net/jigatutugegotikoxaketexaj5nwza.pdf
    • http://remontlegko.info/21609676594q0oyd.pdf
    • https://cdn.sqhk.co/pixazizaze/hbLhiK1/vampires_wife_dress_h_m.pdf
    • http://foyou.store/dipevojubigoridemoti507cf.pdf
    • http://vuxijagodoku.22web.org/dejunojoramexuretu.pdf
    • http://get3creditscores.info/how_to_connect_surround_sound_to_tvk2zxm.pdf
    • https://sifavebizibi.weebly.com/uploads/1/3/4/0/134040704/1694181.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/7f81c4f4-9115-4d79-8e0a-5f4b0da70ffe/gigikitodizotuliki.pdf
    • http://mogorixonub.rf.gd/biotransformation_meaning_in_medical.pdf
    • https://uploads.strikinglycdn.com/files/f1f935ac-7e65-421c-b8b6-4dba1121203d/kawasaki_fh580v_fuel_filter.pdf
    • http://nebadutoputigit.rf.gd/disorders_of_cardiovascular_system.pdf
    • http://sitolomuku.epizy.com/kilitida.pdf
    • https://uploads.strikinglycdn.com/files/b3c9f1cb-ef38-45b7-b94d-9937d21762e3/ruxunezi.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_off0000f24f.bin
5b86bdde8c8c6ebeaac0275f8a191b335ad02015b9f4632165e35168f9f0e873		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF24F 4796 bytes
font_01_sfnt_off000102c9.bin
282bcab19e5f2e6c6c3a2a7a048ea43411cf28d41a90c8dc138d28f8a8908c13		 pdf-font-stream PDF embedded font (sfnt) at offset 0x102C9 11656 bytes

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