Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e973df44ed30701…

MALICIOUS

PDF

74.3 KB Created: 2021-03-14 08:54:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: f6cd826bdf60cf21cf50b0d1e59bde6d SHA-1: 6bbcabef6d603763b6e713640f3968413cbe16bb SHA-256: 8e973df44ed30701bf7d98d5fbadc937fcaa1710731e70d8eb51536460a6e3e7
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URL pointing to a suspicious domain, likely intended to redirect the user to a malicious site. The document body, though partially corrupted, contains text related to a literary theme, suggesting a social engineering lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://nipisod.ru/aws?utm_term=what+is+the+main+theme+of+she+stoops+to+conquer PDF link annotation
    • http://jepisafidezegun.scienceontheweb.net/zakepogagekudowakisukip.pdfIn PDF document text
    • http://budokudepa.scienceontheweb.net/depazoge.pdfIn PDF document text
    • http://ramuwesitavoz.mywebcommunity.org/biddeford_blankets_micro_plush_electric_heated_blanket_with_digital_controller_king_grey.pdfIn PDF document text
    • http://finipupote.mywebcommunity.org/lapepiki.pdfIn PDF document text
    • http://xuwuvewisin.mypressonline.com/brochure_template.pdfIn PDF document text
    • http://hellesypakk.online/wubagiboxtywg.pdfIn PDF document text
    • http://odemebayisitrafik.com/dd_5e_folding_boatc9rtt.pdfIn PDF document text
    • https://cdn.sqhk.co/wodigajamu/cNe7ghH/modern_history_furniture_malaysia.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412768/normal_5fe9fd3aca703.pdfIn PDF document text
    • https://cdn.sqhk.co/menasimax/SDhbhaz/do_angel_fish_give_live_birth.pdfIn PDF document text
    • https://cdn.sqhk.co/tojofelekob/ZBLjdmh/pictoword_level_453.pdfIn PDF document text
    • https://cdn.sqhk.co/vufebevefo/TihYugj/knife_fight_sound_effects.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390068/normal_5fca803cb5978.pdfIn PDF document text
    • http://procripton.com/tudunipusaxas8v9gc.pdfIn PDF document text
    • http://brosbass.com/best_android_iptv_apk_2020kk7xd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/belapawerezuju/reglas_de_acentos_en_espanol.pdfIn PDF document text
    • https://s3.amazonaws.com/kujapomib/18770827967.pdfIn PDF document text
    • https://s3.amazonaws.com/gifiz/hunter_x_core_irrigation_instructions.pdfIn PDF document text
    • https://s3.amazonaws.com/zowejunef/apa_style_guide_citations.pdfIn PDF document text
    • https://s3.amazonaws.com/zuvovoxigumuz/18841999015.pdfIn PDF document text
    • https://s3.amazonaws.com/xirixepo/49481090625.pdfIn PDF document text
    • https://s3.amazonaws.com/wipotegadodorek/xilepaziziziv.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_off0000dc31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC31 5360 bytes
SHA-256: d391560f086b714641c23e8bfa8cac91cbd29d5f12652a200f15fc3ca470ef02
font_01_sfnt_off0000ee51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE51 1940 bytes
SHA-256: c5826c68d5841b739a4cef6a355105b0a64a7eaca563b864f03d3242b29b72c3
font_02_sfnt_off0000f789.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF789 10284 bytes
SHA-256: 77bbaef46f4d0a27ec4223cd4413bf495d8529b702def0e088106bc17531b893

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