Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e807fb04263a86b…

MALICIOUS

PDF

91.4 KB Created: 2021-02-25 01:42:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 6f46d8b8dfd0f35eb12cabe6333a15b8 SHA-1: 743ca3566466ce3fe5faa135e26f2ac5f368ad54 SHA-256: 6e807fb04263a86b640a0811ebe61e30dc378e059ad64fdd815b51f3c5893e66
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 and numerous other URLs point to external resources, suggesting the document is designed to redirect users to malicious sites or download further payloads. The document body, though heavily obfuscated, contains text related to a service manual, likely serving as a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://baarspo.ru/wix?keyword=toro+s620+snow+blower+service+manual PDF link annotation
    • https://cdn.sqhk.co/wuladupuzo/giiaihM/sawabufukenatagexax.pdfIn PDF document text
    • http://easycreditscore.info/mcent_browser_for_pcggpbg.pdfIn PDF document text
    • http://muxonobugimaki.22web.org/laravel_form_button_link.pdfIn PDF document text
    • https://cdn.sqhk.co/kirovuwuvo/jjj5Zje/66807980615.pdfIn PDF document text
    • http://f13x.xyz/dp_file_list_generator_pes_2017_no_dgy2w8.pdfIn PDF document text
    • http://taforojujutusig.mygamesonline.org/67252764982.pdfIn PDF document text
    • http://faxusupovetek.sportsontheweb.net/como_pasar_gramos_a_miligramos.pdfIn PDF document text
    • http://in-step.shop/kerala_university_msc_zoology_syllabus87rlb.pdfIn PDF document text
    • http://kokesatur.22web.org/72371869366.pdfIn PDF document text
    • https://cdn.sqhk.co/rilowikapaz/jf9TCgi/samsung_galaxy_note_4_case.pdfIn PDF document text
    • http://taforojujutusig.mygamesonline.org/element_elefw504a_tv_stand.pdfIn PDF document text
    • https://cdn.sqhk.co/wasusoguba/ibw49he/road_trip_with_best_friends_quotes.pdfIn PDF document text
    • http://xuvaxujogilo.mygamesonline.org/banuvopegoxowerudabudaba.pdfIn PDF document text
    • https://cdn.sqhk.co/penunotati/jjifHrp/stickman_rope_hero_2_mod.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/kufazete/history_of_the_world_i_guess_original.pdfIn PDF document text
    • http://nibewisule.epizy.com/how_to_teach_writing_to_beginner_esl_students.pdfIn PDF document text
    • https://s3.amazonaws.com/wajufifenoxuj/19421337247.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwisi/sujukekitov.pdfIn PDF document text
    • https://s3.amazonaws.com/gezizefefififa/46316089085.pdfIn PDF document text
    • http://pikubub.onlinewebshop.net/57303328227.pdfIn PDF document text
    • http://pujumek.myartsonline.com/how_to_check_coleman_mach_thermostat.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011c02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C02 5416 bytes
SHA-256: 339dc066d6c0fd222b1a6dfc5e27d77bbb3fcbec477c7b2babbabd319a1fbbd2
font_01_sfnt_off00012e5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E5D 10440 bytes
SHA-256: 6b5259ee5e4dfe6d3212d4c7f95f8554c48c47f7b79f7f3c580acd4ae81a2458
font_02_sfnt_off00015215.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15215 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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