Malicious PDF — malware analysis report

Static analysis result for SHA-256 68bef3a79a816f21…

MALICIOUS

PDF

70.6 KB Created: 2021-02-09 14:11:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 0d1034fafdb3ddf32aabac95937317df SHA-1: 0f32d3a0d82d0ff6f9f7b0c995751214da73fe82 SHA-256: 68bef3a79a816f217376fe61b4f967a7915177bb5cda6602035f91a39998f57a
96 Risk Score

Malware Insights

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

The file is a PDF document identified as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to a URL that offers presentation templates, suggesting a social engineering lure. While no scripts were explicitly extracted, the PDF structure and embedded URI indicate an attempt to redirect the user to external content, likely for malicious purposes.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://leonvi.ru/wb?keyword=free%20powerpoint/%20keynote%20presentation%20template PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4409627/normal_5fe3ad5cf32ee.pdfIn PDF document text
    • https://cdn.sqhk.co/wudawagirus/hblgejU/kawaii_cute_dinosaur_wallpaper_iphone.pdfIn PDF document text
    • https://cdn.sqhk.co/jimumakevaji/6Cgimkf/expeditions_for_sale_by_owner.pdfIn PDF document text
    • https://cdn.sqhk.co/nuvexajamu/2geyjfh/16073711835.pdfIn PDF document text
    • https://cdn.sqhk.co/mupijuwo/IKihghU/47201076439.pdfIn PDF document text
    • https://cdn.sqhk.co/nivodoruw/gihfibj/night_on_earth_documentary_free_online.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423188/normal_5fc95054f0d76.pdfIn PDF document text
    • https://cdn.sqhk.co/bexoninodag/jk1iffX/hospital_heart_rate_monitor_cost.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476925/normal_600ff9a4c10b9.pdfIn PDF document text
    • http://pink-echo.club/mitirurezipixoketitulk6.pdfIn PDF document text
    • https://cdn.sqhk.co/pivokazi/Usjijao/tazogived.pdfIn PDF document text
    • https://cdn.sqhk.co/gudijupimeb/Jhaiahd/kixuruxet.pdfIn PDF document text
    • https://cdn.sqhk.co/jipogidara/yYNOgcu/gartner_symposium_2020_theme.pdfIn PDF document text
    • https://cdn.sqhk.co/libuzewis/giQYGlE/labasexog.pdfIn PDF document text
    • https://cdn.sqhk.co/videgogaf/ajejjuN/country_music_artists_male_2018.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380867/normal_5ffa86bb0bffb.pdfIn PDF document text
    • https://cdn.sqhk.co/jibetovo/Tlihcf1/lego_ninjago_sets_dragon_s_forge.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/nefomojuwet/10045748195.pdfIn PDF document text
    • https://s3.amazonaws.com/ronatiduzoxij/10180848237.pdfIn PDF document text
    • https://s3.amazonaws.com/lixisariwulo/brawl_stars_ios.pdfIn PDF document text
    • https://s3.amazonaws.com/xufaxoferugod/39021471848.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_off0000d561.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD561 5216 bytes
SHA-256: a860a0cdbdc45db4f16a049a98b3e764b4e9476e25aebcac86efba6c59f8368c
font_01_sfnt_off0000e72a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE72A 11172 bytes
SHA-256: 8f73c83289008003a102e7fd416eed8842d3ab1e23a5a7a24c0643bbb65520ad

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