Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e79a80fc88aceac…

MALICIOUS

PDF

83.3 KB Created: 2021-03-06 18:25:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 264f3df79b087c5beebb49a71735f76c SHA-1: eb9d19ae66ba4a3676f62c77b908bc579fa32902 SHA-256: 0e79a80fc88aceac1805fdb5c71d5b38ff0bf6dee1ebc840ff5b01739d660ec0
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-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/strik?utm_term=junot+diaz+drown+short+story+pdf PDF link annotation
    • http://medgaj.com/cmos_analog_circuit_design_tutorial0cmlz.pdfIn PDF document text
    • http://texoraw.sportsontheweb.net/lady_with_the_red_umbrella_painting.pdfIn PDF document text
    • http://4escam-bot.online/43741719596mrg5j.pdfIn PDF document text
    • http://vulufinagi.mypressonline.com/how_to_activate_gta_4_pc_offline.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384050/normal_6023dd3342605.pdfIn PDF document text
    • http://electorat.org/sony_soundbar_sa-ct60bt_lost_remoteeutt5.pdfIn PDF document text
    • http://reduslim-buy.site/bittorrent_not_ing_anymoref8hzh.pdfIn PDF document text
    • http://uablog.site/video_compressor_software_freebmiyu.pdfIn PDF document text
    • http://websporizlehd.com/lagu_dj_mr_bombastic1vp7o.pdfIn PDF document text
    • http://sk-anker.ru/811283341260sp90.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4468831/normal_5fe2554a5f265.pdfIn PDF document text
    • http://introdom.ru/divinity_2_swornbreakerbvouh.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377931/normal_6025b108dba7f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368767/normal_5fe1eec9cbe1f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461219/normal_6018b1fa6ff04.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/zodawanuror/program_genie_garage_door_opener_universal_remote.pdfIn PDF document text
    • https://s3.amazonaws.com/minabiwa/code._org_answers_lesson_6.pdfIn PDF document text
    • https://s3.amazonaws.com/bejexe/dirabosixewixukitedo.pdfIn PDF document text
    • https://4e4301d6-cc9a-4939-960a-6b497c1efea6.filesusr.com/ugd/d78803_058cb446558f492c8a992e27d24487d7.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/metakibeme/indian_alphabet_song_download.pdfIn PDF document text
    • https://s3.amazonaws.com/metakibeme/46279579517.pdfIn PDF document text
    • http://vakizonozajaxe.onlinewebshop.net/sansui_led_tv_repairing_centre_kolkata.pdfIn PDF document text
    • https://db6d201d-bdff-4648-9982-d9cfaac7639e.filesusr.com/ugd/98857b_6e444bed8ced4110836cc08645051abe.pdf?index=trueIn PDF document text
    • https://696f1bd8-06c3-47a7-a8f7-e83e17ec8d18.filesusr.com/ugd/5ad03d_023063a946274ee7b706ac6c44646576.pdf?index=trueIn PDF document text
    • https://737c154f-ca75-4484-807d-9d5c19d76377.filesusr.com/ugd/7e84b7_a061b573134d4fbcb08ddff5167cd261.pdf?index=trueIn 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_off00010891.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10891 5332 bytes
SHA-256: e74ed5409aab683c40e026399de7618eefb9a81d2c41499b449a2e62b26c088d
font_01_sfnt_off00011acd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11ACD 10668 bytes
SHA-256: 73b1988af48c0ba9454d8a43ead9a959d614aa0d9c68558b2ac00828d82a42c9

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