Malicious PDF — malware analysis report

Static analysis result for SHA-256 376d85c63281df9a…

MALICIOUS

PDF

75.3 KB Created: 2021-03-12 01:22:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 70300196f338ae6129c35e1ae4dd596f SHA-1: 58006e317aba1160108fdb5c67ecc5446226123d SHA-256: 376d85c63281df9ac06cd1cf5f1ee3ff4f0291e927c032da8057c0aa82ada231
96 Risk Score

Malware Insights

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

The file is a PDF document that contains a lure related to the 'Egypt budget 2020 19 pdf'. It embeds multiple URLs, one of which, https://jacksth.ru/award?keyword=egypt+budget+2020+19+pdf, is flagged as an external URI and is likely the primary malicious destination. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://jacksth.ru/award?keyword=egypt+budget+2020+19+pdf
    • http://poxumanavofeboz.scienceontheweb.net/node_js_referenceerror_document_is_not_defined.pdf
    • http://islemleriniz.org/viparigerugonujejixavop20xpu.pdf
    • http://ericksandoval.com/49496843038sg2ru.pdf
    • http://andyhongdigital.com/lord_shiva_animated_images_hd_1080peqpns.pdf
    • http://pokypka.xyz/pigakewunolovozixeruda1wy0a.pdf
    • http://civiliscmq.online/adding_fractions_worksheets_grade_4ae3xh.pdf
    • http://avlto.best/suing_a_judge_for_civil_rights_violationss6o7p.pdf
    • http://paktum.pro/aluminium_panel_sheet_manufacturersb1w02.pdf
    • http://jilavixit.medianewsonline.com/68528774552.pdf
    • http://usacreditmonitoring.info/luxury_cars_videoube9b.pdf
    • http://universityru.fun/constellations_nick_paynewz376.pdf
    • http://wiinorama.fun/monthly_calendar_2020_tamilqqt7z.pdf
    • http://choosemadam.site/97922114696bs9ac.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://12f7643e-9106-4823-89c2-0bdaecd1bc22.filesusr.com/ugd/1f6d71_38a5ff21a4cf4080bcf8516841227934.pdf?index=true
    • https://b064d0e4-88d6-4b7e-8087-8ebf790fcba6.filesusr.com/ugd/ca32a8_0a598ff234c14bb7b83f9387ba660890.pdf?index=true
    • https://73c25812-7308-4b32-b985-10e2a25710ca.filesusr.com/ugd/5b604d_af1b0e887efb46558b62141a8f79a177.pdf?index=true
    • https://s3.amazonaws.com/zesotat/27909371992.pdf
    • https://s3.amazonaws.com/dibedamoka/56505632772.pdf
    • https://s3.amazonaws.com/bubeto/the_canterbury_tales_character_chart_answer_key.pdf
    • http://bodegifu.atwebpages.com/53666950695.pdf
    • https://06ebba1c-c738-45d4-b58d-83edbdcc9420.filesusr.com/ugd/b14caa_35821068649f4aa9962a77305b3c242d.pdf?index=true
    • http://kojuvurapamox.myartsonline.com/the_monkey_king_2_release_date_in_india_in_hindi.pdf
    • https://12350a4d-732a-4148-85a7-4fa27f2a77ec.filesusr.com/ugd/17beed_a22771b641274897b4299058bef566c6.pdf?index=true
    • https://s3.amazonaws.com/wixamupelinere/rukelisawewo.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_off0000e755.bin
f9dd308676b14e18179b38ea81cf420956007d3fd096d256af2912260d71f643		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE755 5376 bytes
font_01_sfnt_off0000f9c9.bin
c625d45f4655864fce25a205b579e41b54a17d996cd7a84bb084193da9f09295		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF9C9 10836 bytes

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