Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c75242d293aab6e…

MALICIOUS

PDF

80.8 KB Created: 2021-04-06 18:57:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: f20f73573cf01189a637cce401160eb8 SHA-1: 9d2fda7decfef854ee5818c2708e5b793d1cb025 SHA-256: 3c75242d293aab6e445fee6c086e6f903b164676aa7cd3f0f2ac809bff6fef39
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9993

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://gimoguvi.ru/aws?utm_term=250+gramos+de+harina+cuantos+mililitros+son PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369783/normal_606bf135e7d20.pdfIn PDF document text
    • http://joy-todays.online/samsung_scx-4623f_driver_windows_xpm3w93.pdfIn PDF document text
    • http://kataeta.club/flick_instagram_hashtags_reviewmaihf.pdfIn PDF document text
    • https://cdn.sqhk.co/xenudipu/iigiq0v/lofupagifirirugetut.pdfIn PDF document text
    • http://mestorating.ru/concrete_mix_ratio_table_philippineshixx6.pdfIn PDF document text
    • https://cdn.sqhk.co/revidifok/IGB1agi/download_game_driving_school_2018_mod_apk_hack.pdfIn PDF document text
    • http://lightly.store/chickie_and_pete_s_nutrition_guidejo9et.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501770/normal_5ffca9a830939.pdfIn PDF document text
    • http://fastcreditreport.info/what_does_socio_economic_impact_meanuht3u.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393898/normal_5ffb9e86a9de7.pdfIn PDF document text
    • http://mazanatur.space/4889461702n0gra.pdfIn PDF document text
    • https://cdn.sqhk.co/busumodofu/Hihshho/kijepi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461746/normal_5fd661b49b015.pdfIn PDF document text
    • https://cdn.sqhk.co/padixemugex/FribOYR/zuxojaba.pdfIn PDF document text
    • http://dompodklyuch.com/game_textures_freee4355.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/jezaxojipevu/famobalobotarivi.pdfIn PDF document text
    • https://s3.amazonaws.com/litunux/xatitur.pdfIn PDF document text
    • https://s3.amazonaws.com/metubevozisul/overeaters_anonymous_gray_sheet_food_plan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/baee00ef-52e1-47a0-870b-eab49f10edda/2011_chevy_malibu_led_tail_lights.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6762787f-f679-411b-9add-84d641eee664/80380888960.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cec6106e-6481-4645-921d-6b90b17ff128/do_pellet_stoves_have_battery_backup.pdfIn PDF document text
    • https://s3.amazonaws.com/dejazuvorira/76414317693.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/602d01b9-3017-481f-8dbf-6d852222cced/davinci_resolve_16_slideshow_tutorial_for_beginners.pdfIn PDF document text
    • https://s3.amazonaws.com/fopalew/31455468237.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f5ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5AC 5656 bytes
SHA-256: 8d990dbb8b7f7449222129ac3b5643ccbdd73081ee7452f7c48d8ef3b100ca8c
font_01_sfnt_off000108bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108BD 14020 bytes
SHA-256: 47e066946b522980bcb967ca45b61e88d177ef8d8f75e72c68c1110c6e93a85e

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