Malicious PDF — malware analysis report

Static analysis result for SHA-256 27f3aea4a2a56457…

MALICIOUS

PDF

82.4 KB Created: 2021-03-28 18:37:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 30f2b5bf98163b53c5d6ec490ca99a4c SHA-1: 5110d7f5cd35639d4c476e1719eadfb1163c613c SHA-256: 27f3aea4a2a564574d1d9e2528ff8889aee05128c42656264f1989a0869cc909
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 0.9995

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/wix?keyword=lego+mindstorms+nxt+8527+instructions PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4460473/normal_603fc8e99a874.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375531/normal_5fd2eabcd00c7.pdfIn PDF document text
    • http://bostpolamos.site/what_is_intelligent_design_discovery_instituteeg2le.pdfIn PDF document text
    • http://invitesistem.ru/tax_calculation_sheet_for_ay_2020-_21ytyaq.pdfIn PDF document text
    • https://cdn.sqhk.co/xanuramalu/jagfBkb/antenna_cond_free_font.pdfIn PDF document text
    • http://snatural.space/solve_slope_intercept_form_calculatorbef83.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402933/normal_60218e512d808.pdfIn PDF document text
    • https://cdn.sqhk.co/gufemazibafi/Yjjwvhj/arrow_rose_gold_necklace.pdfIn PDF document text
    • https://cdn.sqhk.co/ragejeli/hj9icid/44685237900.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380857/normal_605b6b8e5cdd8.pdfIn PDF document text
    • https://cdn.sqhk.co/genizataxom/U9jgZ7f/metaphysics_meaning_in_bengali.pdfIn PDF document text
    • https://cdn.sqhk.co/kutajanode/MIheKVS/bead_sort_algorithm_in_java.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456982/normal_601f96e06be31.pdfIn PDF document text
    • https://cdn.sqhk.co/xojoweva/ytEjchd/dune_buggy_las_vegas_strip.pdfIn PDF document text
    • http://nosinoski.shop/sofewumezagadelipijugs08g.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453117/normal_602272756a22c.pdfIn PDF document text
    • https://cdn.sqhk.co/nijalemivowo/CenjeRh/semilla_de_calabaza_propiedades.pdfIn PDF document text
    • https://cdn.sqhk.co/vixonafom/IhjSgcw/can_you_escape_the_room.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/dozore/acet_application_form_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/mexavofezoxi/51462106875.pdfIn PDF document text
    • https://s3.amazonaws.com/zerepuzuze/the_crown_season_3_episode_7_fact_check.pdfIn PDF document text
    • https://s3.amazonaws.com/gisujubolidine/tobajuvexede.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA4D 5556 bytes
SHA-256: 93c4ad6c2abcaa5c17bb619b8dbc66e64a4dd17d75b81a0039ab054be3279a2d
font_01_sfnt_off0000fd37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD37 11584 bytes
SHA-256: 3dfd66291c0da73b92717662d31a6a2a9e6824fb6c1648266176a25effe4f760
font_02_sfnt_off000124cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x124CF 16176 bytes
SHA-256: 9f4914eee661b0ee52b7d56f83ca1c0c111f1c5d0cc5f10efe511803eb69212c

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