Malicious PDF — malware analysis report

Static analysis result for SHA-256 82ebc3b3eb6baf01…

MALICIOUS

PDF

84.5 KB Created: 2021-04-28 20:14:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7446c1b91b02a14cce8a6989f6b441a2 SHA-1: dbb75d1c2eb60ade2c218b1b4df3c7af95a8aa51 SHA-256: 82ebc3b3eb6baf018f4fee47f36c2ff76171eed0e279e0745c4bd56d307fb20d
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, identified by heuristics and a machine learning classifier as malicious. The ClamAV detection further confirms its malicious nature, flagging it as a phishing trojan. The document body, though heavily obfuscated, contains text related to 'Arrow shed 10x12 parts', likely a lure to encourage clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://seumenha.ru/strik?utm_term=arrow+shed+10x12+parts
    • http://podarokinsta.online/companies_sometimes_convert_receivables_to_cash_before_they_are_due_by_selling4c9ud.pdf
    • http://zulesaxeririv.sportsontheweb.net/oscilloscope_guide.pdf
    • https://cdn.sqhk.co/fupetabuwuf/ajf9JED/13508675900.pdf
    • http://tokivaburag.22web.org/c_language_questions_and_answers.pdf
    • http://storeplus.info/pemoxevinuvuwefojeqlp49.pdf
    • http://gekifek.scienceontheweb.net/jurigilubedib.pdf
    • https://cdn.sqhk.co/xekemini/idihrih/famubomesoso.pdf
    • https://cdn.sqhk.co/wemofisejaf/ihMOXhf/dixometuzura.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/nasitevu/estilo_de_vida_segun_autores.pdf
    • https://uploads.strikinglycdn.com/files/31e436f1-f133-4411-b178-89aa67a88b6c/how_fast_does_a_110cc_quad_bike_go.pdf
    • https://uploads.strikinglycdn.com/files/7086af4a-fe83-47a7-a4f8-742c870a7d32/dark_souls_3_4k_patch.pdf
    • https://uploads.strikinglycdn.com/files/968adf1b-c7db-4ffc-b7ba-92b615e384bb/rca_universal_remote_code_for_arris_cable_box.pdf
    • https://uploads.strikinglycdn.com/files/20e89998-f83b-4f35-ac2c-2723442d8c5f/rulokomebiwatod.pdf
    • http://diwadakerinepix.myartsonline.com/delhi_road_map_download.pdf
    • https://s3.amazonaws.com/xafaxotaful/casio_g-shock_g-9000-1vdr.pdf
    • https://uploads.strikinglycdn.com/files/78765100-45c9-4179-af7a-8f6dea3f7609/bosch_800_series_washer_detergent_tray.pdf
    • http://gexokaxaxitinug.rf.gd/ielts_writing_task_2_questions_and_answers.pdf
    • https://s3.amazonaws.com/lixisariwulo/tasiberi.pdf
    • http://rozikumopimi.rf.gd/factory_reset_command_mac.pdf
    • http://gugawabizex.epizy.com/is_the_planet_fitness_black_card_a_contract.pdf
    • https://s3.amazonaws.com/bezutu/meledanopelexojugela.pdf
    • https://s3.amazonaws.com/tokafanawa/sebuluxidimidamasazusu.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_off0001099e.bin
9277fcac8ec9f301c8918285f96f8637a3e874b7e68b8111e19755106405ded6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1099E 5488 bytes
font_01_sfnt_off00011c5c.bin
02012d6f89cc01e01cd337128a6fe16ad685930b3d5c06a5a1e8b3df64bf77cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11C5C 12004 bytes

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