Malicious PDF — malware analysis report

Static analysis result for SHA-256 be206d47c97301b7…

MALICIOUS

PDF

78.3 KB Created: 2021-05-06 08:00:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2816aa2dc282d76f70e787eab56e8cc0 SHA-1: 22a2f2926d254bba8e3e2be1dc91ae692a751694 SHA-256: be206d47c97301b714618cf1b2849531d47babb8bea8a82b036ef23c7f36df10
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, likely intended for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the presence of an external URI and the nature of the heuristics suggest an attempt to redirect the user to a malicious site, possibly disguised as hardware information.

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://kuzutuzo.ru/strik?utm_term=dell+optiplex+gx620
    • http://liwurivosopap.medianewsonline.com/34240439314.pdf
    • http://kujamemapevubu.mypressonline.com/how_to_solve_a_3x3_rubiks_cube_steps.pdf
    • https://cdn.sqhk.co/mumesimasozo/jjdiihj/boy_and_girl_best_friends_forever_funny_quotes.pdf
    • http://kosamaritaj.getenjoyment.net/weight_loss_diet_menu.pdf
    • http://wafixevewitope.mypressonline.com/69461786298.pdf
    • http://ritixibetono.mygamesonline.org/coping_cat_workbook_free.pdf
    • https://cdn.sqhk.co/daxonotetil/spflhg5/crowd_city_zombie_survival.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://newemepakirid.myartsonline.com/what_are_you_searching_for_quotes.pdf
    • https://uploads.strikinglycdn.com/files/b9751f06-7c37-442c-b641-2737d78610f9/advanced_english_grammar_test_with_answers_doc.pdf
    • https://s3.amazonaws.com/zufaxepixiguxax/john_dewey_experience_and_education_summary_by_chapter.pdf
    • https://uploads.strikinglycdn.com/files/df40c257-ebd4-4a3e-853b-bf8df18f94e1/nanobomefenonebaxi.pdf
    • https://s3.amazonaws.com/pegozegi/john_deere_snow_blower_attachment_manual.pdf
    • https://20128683-61eb-4207-b985-d468b1a81fea.filesusr.com/ugd/0049ca_3c9bc29780224407abb4bc6837adbbc2.pdf?index=true
    • https://s3.amazonaws.com/fizufapu/arnaud_desjardins.pdf
    • https://uploads.strikinglycdn.com/files/2b534d09-52b8-4cc8-bdce-fa56249c7137/which_country_has_the_largest_population_and_economy_in_europe.pdf
    • https://s3.amazonaws.com/bogijexu/keyboard_cat_sheet_music_with_letters.pdf
    • http://wozitoso.atwebpages.com/vuvuveju.pdf
    • http://kipejefanowisu.atwebpages.com/dreams_fleetwood_mac_chords.pdf
    • https://03386fec-e341-46be-bf9f-2f2bd19f9bfe.filesusr.com/ugd/bf57b5_36de23aaa80441278a797e6803748e9d.pdf?index=true
    • https://s3.amazonaws.com/daniwodug/que_es_titulo_reconstruido.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_off0000ea46.bin
1883644507b4bf2b0dd082b95c45b3c388267606fb3209f68cdac8c6f6c784bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEA46 4996 bytes
font_01_sfnt_off0000fb70.bin
3ea20a8d29f44e70c502e592e18d888ed2d97d2711c3feaec2895245d3f98501		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFB70 15344 bytes

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