Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d318f7c66a1df50…

MALICIOUS

PDF

154.8 KB Created: 2021-04-02 17:10:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 68e44f933400eec770e2a28861f8a1fd SHA-1: 1bd8afc227d06a7511d4e21fc7654ee2e71b27f6 SHA-256: 7d318f7c66a1df50512c90a636d855327de1fdce892fcc017f5686170760c28f
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9748

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://leonvi.ru/strik?utm_term=addictive+drums+2+custom+xl+%25E3%2582%25BB%25E3%2583%25BC%25E3%2583%25AB PDF link annotation
    • https://cdn.sqhk.co/figoveraboj/ejdqqDc/7_words_to_describe_yourself.pdfIn PDF document text
    • https://cdn.sqhk.co/tonufipu/ifDicia/cool_lock_screen_backgrounds_for_iphone.pdfIn PDF document text
    • https://cdn.sqhk.co/dopuzodopuvu/ud0lTjc/r2d2_scream_ringtone_iphone.pdfIn PDF document text
    • https://cdn.sqhk.co/divoxisig/iJ7LQrf/car_accident_cross_county_parkway.pdfIn PDF document text
    • https://cdn.sqhk.co/lowovegoxoji/haji6DC/bounty_hunter_dota_2_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/nomelafu/LjcidP7/pirate_treasures_gems_puzzle_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/dovawowo/xVghhck/unnatural_selection_netflix_rotten_tomatoes.pdfIn PDF document text
    • http://jejarit.iblogger.org/mirepoix_france_tourist_information.pdfIn PDF document text
    • https://cdn.sqhk.co/lunapolakezo/Jmiahdk/sovebenosomamesefewokafov.pdfIn PDF document text
    • https://cdn.sqhk.co/zadexona/EibZHjf/second_grade_learning_games_app.pdfIn PDF document text
    • https://cdn.sqhk.co/tawibonikigo/etkDWre/80586451391.pdfIn PDF document text
    • https://cdn.sqhk.co/gukitane/1igeSic/best_chocolate_chip_recipes_uk.pdfIn PDF document text
    • https://cdn.sqhk.co/letarezetap/Gijjhq7/vepoxonojimugapotap.pdfIn PDF document text
    • https://cdn.sqhk.co/zasokolof/jjhdmhg/74150549516.pdfIn PDF document text
    • https://cdn.sqhk.co/motulobugaji/bfgeCB1/fortress_under_siege_apk.pdfIn PDF document text
    • http://kebukodakaver.iblogger.org/lochia_postpartum.pdfIn PDF document text
    • https://cdn.sqhk.co/wesegagage/jhibkpR/75581689646.pdfIn PDF document text
    • https://cdn.sqhk.co/jiguluzufuwa/7jgjfig/how_to_change_runtime_stack_azure_app_service.pdfIn PDF document text
    • https://cdn.sqhk.co/dezorevukor/ivlxnhj/robobooks_mod_apk_download.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fudewalazakukug.epizy.com/pilusawemavirovubopani.pdfIn PDF document text
    • https://s3.amazonaws.com/jedobufudajewu/mufudover.pdfIn PDF document text
    • https://s3.amazonaws.com/gixawetopoli/tonapupunaj.pdfIn PDF document text
    • https://s3.amazonaws.com/zafijukopa/coconut_tree_information.pdfIn PDF document text
    • http://romipozaxijida.rf.gd/gym_bodybuilder_photos.pdfIn PDF document text
    • http://meguwuzib.rf.gd/diabetes_uk_diet_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/pegozegi/coordinating_conjunction_worksheet_for_grade_8.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000efda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFDA 92348 bytes
SHA-256: af02101b1075bf00573bd814692bc6ec82326e1aa2f2e12462e0b974c54c4912
font_01_sfnt_off00020102.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20102 3376 bytes
SHA-256: 55c8da9f20085f41a11ad0a4abbca20470b3cf8d2120bd32c6b3de0009752288
font_02_sfnt_off00020cf5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20CF5 5124 bytes
SHA-256: 6abebbf54eb0fd649c79bd6bf28bdc8d7d64bb9ff1dc52cbf52730539b8e91c9
font_03_sfnt_off00021e5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21E5B 11120 bytes
SHA-256: b3eef3c32929c96165f028b1b9191f75f53235164c413213532fdcc24ee72ab2
font_04_sfnt_off00024404.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24404 16208 bytes
SHA-256: 2646104f2eec8b8d874d569889de6ac9f97b1030fa3bf076983ee6ab425b6206

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