Malicious PDF — malware analysis report

Static analysis result for SHA-256 51116986a5370068…

MALICIOUS

PDF

83.7 KB Created: 2021-03-16 17:25:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 31504d885954d9bbc4011bd2f564e501 SHA-1: 2364e3911af7eb603aaad008aa7f5145814e9917 SHA-256: 51116986a53700683da5b9e7d991464110559e109748d65e7b7d52f6fb44c2a8
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 0.9957

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://lozipotod.ru/123?utm_term=ch+play+cho+pc PDF link annotation
    • https://cdn.sqhk.co/dowamagova/ia0B3SO/mijuvewezosunoku.pdfIn PDF document text
    • https://cdn.sqhk.co/paxepilekot/eO7uiji/12001819220.pdfIn PDF document text
    • https://cdn.sqhk.co/fetogivaw/gdWjaif/square_root_of_104_in_simplest_form.pdfIn PDF document text
    • https://cdn.sqhk.co/zomulusiku/qjcGBcE/real_offroad_simulator_3d_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/xoresarib/MgieVFf/radioactive_symbol_clipart.pdfIn PDF document text
    • https://cdn.sqhk.co/fofateze/hjjbieS/vawabupevaberobalezubo.pdfIn PDF document text
    • https://cdn.sqhk.co/javeduner/ehhMIYX/dungeon_village_tips.pdfIn PDF document text
    • https://cdn.sqhk.co/reparepoki/PhimMUE/49689097692.pdfIn PDF document text
    • https://cdn.sqhk.co/nekuripafi/jhashjR/best_resident_evil_movies_in_order.pdfIn PDF document text
    • https://cdn.sqhk.co/pefibovip/jcYkHPD/94733135921.pdfIn PDF document text
    • https://cdn.sqhk.co/seponidozit/iCibrqz/como_hackear_super_hero_tycoon_roblox.pdfIn PDF document text
    • https://cdn.sqhk.co/dofubetu/hdSdjez/flexeril_pills_images.pdfIn PDF document text
    • https://cdn.sqhk.co/depifozopupe/X6Nuqhb/edge_of_dawn_seasons_of_warfare_mp3.pdfIn PDF document text
    • https://cdn.sqhk.co/nopawuwam/gh6ihhj/jekujof.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/fifuto/veliketaporebadopek.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7acd2806-8363-4868-92fa-4230c6b1a193/pelibivel.pdfIn PDF document text
    • https://s3.amazonaws.com/fujadabez/82644384257.pdfIn PDF document text
    • https://s3.amazonaws.com/dopugaxelelema/fufiwurevok.pdfIn PDF document text
    • https://s3.amazonaws.com/lekizopiloref/post_construction_cleaning_proposal_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df02472e-0446-421f-b9e3-05f392bf6261/the_island_castaway_3_walkthrough.pdfIn PDF document text
    • https://s3.amazonaws.com/lokijuronig/sagojod.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fb56adfd-c563-4059-8df5-9810b620ea12/john_deere_265_starting_problems.pdfIn PDF document text
    • https://s3.amazonaws.com/jajuzasalikirut/1383753026.pdfIn PDF document text
    • https://s3.amazonaws.com/lusabifef/esl_worksheets_for_high_school.pdfIn PDF document text
    • https://s3.amazonaws.com/joterige/new_testament_reading_plan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b58cefc-ac0a-45ba-8a33-cd974752c3b8/how_to_start_your_own_music_industry.pdfIn PDF document text
    • https://s3.amazonaws.com/mizeteb/xubuseruxazuniz.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_off0000f9eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9EB 4752 bytes
SHA-256: eabf4e890a3e7af388b18d8f85244cdb6be9c217d8d2fdf7e84bfe8e20ab0f61
font_01_sfnt_off00010a1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A1B 24672 bytes
SHA-256: 3c69ad66a1c33928fc7f186738016bcf6790831e16f7ab0ff066526d09c481fc

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