Malicious PDF — malware analysis report

Static analysis result for SHA-256 03080f18f26750a6…

MALICIOUS

PDF

80.7 KB Created: 2021-04-09 00:28:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 6a0f80e83ff3916fe788176831140fc9 SHA-1: 765717f328d652569edca5e18a703f06ca337caa SHA-256: 03080f18f26750a6be378be2d65ae60de03a8d1fb033e762c549e9ef9b136d97
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URI pointing to a suspicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The ML classifier also flagged it with high confidence. The presence of external URIs suggests an attempt to redirect the user to a malicious site, likely for phishing or to download a secondary payload. No scripts were extracted, but the PDF structure and embedded URI are strong indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://soxebez.ru/strik?utm_term=template+of+marriage+contract PDF link annotation
    • https://cdn.sqhk.co/jivazufevi/1bBhhgi/klondike_adventures_tips.pdfIn PDF document text
    • http://stavki.link/sekiro_how_to_get_first_ninjutsucaxnf.pdfIn PDF document text
    • http://it50save.info/bass_clef_ledger_lines_worksheet_answer_keypjpjv.pdfIn PDF document text
    • http://instapodarok365.site/the_5th_wave_series_movie_sequelkqhnd.pdfIn PDF document text
    • https://cdn.sqhk.co/datolabevev/3CZjg5b/orange_tree_resort_phoenix_az.pdfIn PDF document text
    • https://cdn.sqhk.co/remezebona/hixgigh/super_bubble_recipe_without_glycerin.pdfIn PDF document text
    • https://cdn.sqhk.co/xufuwejaxe/hd8giND/32653404287.pdfIn PDF document text
    • https://cdn.sqhk.co/wanuvudeb/QdyFjgR/75582847462.pdfIn PDF document text
    • http://proita.space/karokawofatifizusulawhp6s9.pdfIn PDF document text
    • https://cdn.sqhk.co/mogizufofuj/zrgdlC3/clash_of_clans_download_for_pc_windows_8.pdfIn PDF document text
    • https://cdn.sqhk.co/libobivole/9jetbgj/81936632909.pdfIn PDF document text
    • https://cdn.sqhk.co/wupofolizaj/bvfJhfO/cowboy_costume_ideas_for_ladies.pdfIn PDF document text
    • https://cdn.sqhk.co/jawutuwek/3ihSXfp/background_video_recorder_pro_apk_2019.pdfIn PDF document text
    • https://cdn.sqhk.co/lubometusoz/o5ihZEt/modern_warfare_elite_sniper_challenge_8.pdfIn PDF document text
    • https://cdn.sqhk.co/dikabopagesi/ttigmNk/bikim.pdfIn PDF document text
    • https://cdn.sqhk.co/ligumorik/dgdbaSC/80843763692.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/f0481f28-9e53-469a-9ad9-2878b1d73f1b/83810244588.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27a9f9bc-e746-4bee-99f9-20b98f52b714/formatos_para_avaluos_comerciales.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0feee5e8-386a-4dd7-b3cb-a2ce1fe944b7/how_to_do_f2l_method.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4bcede47-d58a-40b6-878b-42d0ac0cbac8/divina_comedia_de_dante_alighieri_resumen.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/77e2ab6c-3b5b-450f-9129-19b0709ec044/vodonarisosufizalozo.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_off0000fe6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE6F 5108 bytes
SHA-256: ae19a5e5c948def877d6a766e495f5c066c73563bb18a683911fd2dc6496bf78
font_01_sfnt_off00010fbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FBE 11028 bytes
SHA-256: 27b513d7382ef5b2d171979128d424c08b84dda6b4373bf58fb02f3d4e63ea13

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