Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed65055d3f684ec1…

MALICIOUS

PDF

81.8 KB Created: 2021-03-31 09:27:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2155d5ca65f7387a4e4f5c534ffeef66 SHA-1: 292d98036e291b379aff8036d179effeaba2a362 SHA-256: ed65055d3f684ec1f7fc476ad444d1fe6a2d8867c9cab686ab394409e19492ab
96 Risk Score

Malware Insights

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

The file is a PDF that contains an embedded URI pointing to a suspicious domain, identified as malicious by ClamAV and an ML classifier. The document body, though heavily obfuscated, suggests a lure related to 'share market pdf'. The presence of multiple external URLs indicates a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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=basic+terms+of+share+market+pdf
    • https://kufojomarolov.weebly.com/uploads/1/3/4/4/134401526/781a96366f.pdf
    • http://pekibexuvipeve.scienceontheweb.net/calendario_2020_para_imprimir_anual.pdf
    • https://cdn.sqhk.co/luwanuriwaba/e1jahba/portal_admin_usuarios._reniec._gob._pe.pdf
    • http://fullhp.info/what_channels_are_on_dish_packages800ty.pdf
    • http://ukranews.icu/fodunnylcj.pdf
    • http://fukazab.mywebcommunity.org/83287981838.pdf
    • http://dororuminaxa.mywebcommunity.org/wordly_wise_book_8_test.pdf
    • https://bomaripuxizidul.weebly.com/uploads/1/3/4/9/134901287/wulukirugezug.pdf
    • http://reduslimitalia-official.website/mecanismo_de_accion_de_los_carbapenemicoslbx1p.pdf
    • http://pozufopajosel.mypressonline.com/tratamiento_de_anemia_ferropenica_en_adultos.pdf
    • http://zutolewe.mywebcommunity.org/anxious_for_nothing_study_guide_free.pdf
    • https://cdn.sqhk.co/ritafase/QK6eidX/64125852309.pdf
    • http://pifanaliriwabo.mygamesonline.org/after_2_gratis_ita.pdf
    • http://1cats.space/house_of_leaves_explained_redditvi34l.pdf
    • http://ibkreactiva2020.com/how_to_learn_to_draw_for_beginnersghbw8.pdf
    • http://thecet.xyz/15485854027mn3yi.pdf
    • https://dudakodut.weebly.com/uploads/1/3/4/4/134497067/gewur.pdf
    • http://makedctl.site/how_to_repair_a_culligan_water_softenerjqdng.pdf
    • http://car-den.ru/is_lost_girl_on_netflixl8csz.pdf
    • https://cdn.sqhk.co/lajoroteb/14ihib6/jirinazuwovekaxumemanoku.pdf
    • http://tulutita.sportsontheweb.net/puroxefuzuxurijiz.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://zupitatip.atwebpages.com/59750548557.pdf
    • http://pitigapevede.onlinewebshop.net/wexuxa.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/
    • https://savannah.gnu.org/projects/freefont/
    • http://www.gnu.org/licenses/
    • http://www.gnu.org/copyleft/gpl.html
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f41b.bin
4103f12eb2d3fd5ce81f4dfd6de156bb127b7b020113f77f3e4d9c5a57060399		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF41B 6416 bytes
font_01_sfnt_off000103e6.bin
89de9acfab113c8020e3204d1f818750391e7d9238abe96628adc8fd44220c2e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x103E6 5476 bytes
font_02_sfnt_off0001165d.bin
86d94ac2a1a7405b48e7da04e87cf53f9c0cf12c426222f37382074c691190f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1165D 10264 bytes

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