Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a89f216ccfba307…

MALICIOUS

PDF

76.1 KB Created: 2021-03-06 14:04:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: ee4d263886990bd9d644a8a47aba4858 SHA-1: 7b625bef1ac9b1bedc06f362acf59cf966cd143b SHA-256: 7a89f216ccfba30739adee0d89e163d839fcc7ca4c46107d5cb5f0624f451595
96 Risk Score

Malware Insights

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

The file is a PDF containing an embedded URL that redirects to a suspicious domain. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest an attempt to trick the user into visiting a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

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://ponafet.ru/award?keyword=how+to+get+fractions+on+ti-30x+iis PDF link annotation
    • https://cdn.sqhk.co/sixerusesebu/pYbgfif/real_bike_racing_download_uptodown.pdfIn PDF document text
    • https://cdn.sqhk.co/fuwufupi/jdRqzhj/yellowstone_season_1_episode_9_music.pdfIn PDF document text
    • https://cdn.sqhk.co/momujolo/jajaxRA/black_mens_fade_haircuts_2018.pdfIn PDF document text
    • http://ezfix.asia/arab_times_onlinecw3c5.pdfIn PDF document text
    • http://espaceabone.com/fafefuji10042.pdfIn PDF document text
    • http://trynon.xyz/third_age_divide_and_conquer_installation_guideh987n.pdfIn PDF document text
    • http://instgrmmverifiedbadge.com/570944954609pn3y.pdfIn PDF document text
    • http://lnstagramsupportingcenter.com/engaging_the_courts_of_heavenol6ll.pdfIn PDF document text
    • https://cdn.sqhk.co/sogunixe/ihfWeFn/trials_frontier_full_map.pdfIn PDF document text
    • http://webdefilmizle.com/1162093827x7rva.pdfIn PDF document text
    • https://cdn.sqhk.co/dinokafoxume/hJOicM6/40267569237.pdfIn PDF document text
    • http://lamenomapod.iblogger.org/personification_worksheet_5th_grade.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/juvetaso/sbs_food_network_tv_guide_qld.pdfIn PDF document text
    • https://s3.amazonaws.com/gaxuremewuger/ff7_guide_wutai.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa1ddee8-130b-4dfe-9ee2-cd1f1024acde/2006_jetta_service_now_reset.pdfIn PDF document text
    • http://damoserik.epizy.com/begifeduxelezudefe.pdfIn PDF document text
    • http://busugotuwege.epizy.com/how_to_convert_decimal_to_fraction_on_casio_fx-9750gii.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/384b3061-4f1c-4287-b948-8b6587de7faa/multiple_intelligence_survey_for_elementary_students.pdfIn PDF document text
    • http://xivoganunew.rf.gd/pogoravafakonutarowoje.pdfIn PDF document text
    • https://s3.amazonaws.com/bulozor/vexivesiw.pdfIn PDF document text
    • https://s3.amazonaws.com/jevedijadiki/bingo_games_apk_free.pdfIn PDF document text
    • https://s3.amazonaws.com/nakuzafol/ledonovogakirunuwuxazele.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/899076ca-3e74-4660-9e1f-158a0a4a834d/simple_past_irregular_verbs_exercises_text.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b8122e6-fe1f-4c05-afd6-314a9080bc5f/book_tasting_menu_template_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6cf999b0-d753-43b5-8057-e3d0e1d2c7ce/myron_mixon_rib_bbq_sauce.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dc36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC36 5264 bytes
SHA-256: 34bc274de424126120c2f25ee12bba352cef606f8cc3d0ed8f6ebf08a0b8839c
font_01_sfnt_off0000ee42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE42 11496 bytes
SHA-256: fa783a44eff79db12d63017b2832b8c953ca25ed234584a2279574630ba6d63b
font_02_sfnt_off000114ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x114BA 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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