Malicious PDF — malware analysis report

Static analysis result for SHA-256 15f47f74a27ee080…

MALICIOUS

PDF

106.7 KB Created: 2021-02-25 16:30:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 30a47d9dc78193661bb0695d645e2b44 SHA-1: c39b0f6876b4989f782d783b28e72f16a54d39f1 SHA-256: 15f47f74a27ee080825599ffa48d6233e207e910d66471c73a539361e7965b44
96 Risk Score

Malware Insights

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

The PDF document contains an embedded URL that mimics a search result, designed to trick users into clicking it. ClamAV and ML classifiers flagged this PDF as malicious, specifically as a phishing trojan. The presence of external URIs and the overall detection suggest the document's primary purpose is to redirect users to a malicious site, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://baarspo.ru/strik?utm_term=is+there+a+3rd+jack+reacher+movie PDF link annotation
    • https://sufixekanol.weebly.com/uploads/1/3/4/7/134712322/43f844c9.pdfIn PDF document text
    • https://cdn.sqhk.co/zatuwifezub/dicScje/34077966816.pdfIn PDF document text
    • https://cdn.sqhk.co/fapebenu/ge0hexp/39815176244.pdfIn PDF document text
    • http://gakagebir.mypressonline.com/average_salary_for_graphic_designer_in_chicago.pdfIn PDF document text
    • https://cdn.sqhk.co/morovujefi/gcRjjhc/65510309686.pdfIn PDF document text
    • http://vijevejumozugim.sportsontheweb.net/how_to_update_fl_studio_20.pdfIn PDF document text
    • http://xumupizaxuto.scienceontheweb.net/12972917192.pdfIn PDF document text
    • http://zonerokemub.getenjoyment.net/76855663418.pdfIn PDF document text
    • https://cdn.sqhk.co/puvubuzu/bheUVgi/cool_fashion_accessories_making_jewellery_artists.pdfIn PDF document text
    • http://bumumapa.mypressonline.com/how_much_is_a_big_green_egg_xl.pdfIn PDF document text
    • http://kirakexig.mypressonline.com/41669700618.pdfIn PDF document text
    • http://zememor.sportsontheweb.net/27384944952.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/fokapikow/calendar_template_word_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/zodererezuzuxi/29111930058.pdfIn PDF document text
    • https://s3.amazonaws.com/bajuse/bigo_live_tv_apk.pdfIn PDF document text
    • http://nufiwimuzobo.onlinewebshop.net/what_can_you_cook_in_electric_pressure_cooker.pdfIn PDF document text
    • http://kofaxafogi.myartsonline.com/fifty_shades_darker_2017_full_movie_in_hindi_watch_online.pdfIn PDF document text
    • https://s3.amazonaws.com/zizene/new_york_guide_book_2018.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000135c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x135C2 6444 bytes
SHA-256: 6a1b86a71486282d4a1a7c890c1b81b74506b2f2ab927f83603cc63198eabb85
font_01_sfnt_off000145b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x145B3 5132 bytes
SHA-256: 036e176ccbf22c770fc5cfb62d14127e0fea92f964e01ba4c29cadfdb7abf0d7
font_02_sfnt_off00015728.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15728 11820 bytes
SHA-256: e783e4a228a86af8eb0465601ad36980ebc81c836ab55c064efcf3193058c7ee
font_03_sfnt_off00017ee2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17EE2 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230
font_04_sfnt_off00018ca4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18CA4 6084 bytes
SHA-256: fe2fcb21638d77a13ab5a0035f1ec4ff1483f61d84902e7352c885bc49d79dd3

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