Malicious PDF — malware analysis report

Static analysis result for SHA-256 9363316c6bf711b4…

MALICIOUS

PDF

83.5 KB Created: 2021-05-23 15:16:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 9a8ba85edfe58d2d13ef09cf6f2d6167 SHA-1: c0cb236b69d27736fa07b30ca2d5d4ee52344b29 SHA-256: 9363316c6bf711b4923f4ba58e166af3e485b16c3f2003aff31a1d3f45f0724d
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 0.9990

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://bologen.ru/strik?utm_term=download+lagu+mencari+alasan+koplo+mp3+metrolagu PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4501980/normal_5fc747dbc987e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377113/normal_600ff947d0c67.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492245/normal_60281ee38f541.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417817/normal_5fc9dfd74863c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418556/normal_601001cb73ea5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453885/normal_5ff5befc53ef7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413235/normal_602f0d7f520da.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408993/normal_5fefc868558ba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448343/normal_60558277edaec.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489028/normal_5fccf3bde3184.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416928/normal_600493f8efaa0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424364/normal_5ff53c121d7d5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366976/normal_6015e71add8b6.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/pajeriramal/samsung_vrt_steam_washer_debris_filter.pdfIn PDF document text
    • https://s3.amazonaws.com/tikoweravisixu/conair_clothes_steamer_instructions.pdfIn PDF document text
    • https://s3.amazonaws.com/nitirew/blank_business_card_templates_free_printable.pdfIn PDF document text
    • https://s3.amazonaws.com/lunojol/50736912874.pdfIn PDF document text
    • https://s3.amazonaws.com/sakaburepagase/love_story_main_theme_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/tajimipojimo/because_i_could_not_stop_for_death_analysis_line_by_line.pdfIn PDF document text
    • https://s3.amazonaws.com/kovilowab/gethsemane_sheet_music_simplified.pdfIn PDF document text
    • https://s3.amazonaws.com/gumagabu/gijelapobag.pdfIn PDF document text
    • https://s3.amazonaws.com/suxugipipolazog/brightness_slider_android_root.pdfIn PDF document text
    • https://s3.amazonaws.com/nafibanefexex/mujigivifipomasuwila.pdfIn PDF document text
    • https://s3.amazonaws.com/sulasatevirexo/xunolapojetetisit.pdfIn PDF document text
    • https://s3.amazonaws.com/posufij/degrees_to_radians_conversion_practice_worksheet.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f0b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0B3 5712 bytes
SHA-256: 56c90b6ba6d885d678a40e6e9cfd0d189559a0ed4fd2312852a8abad9feeec0c
font_01_sfnt_off00010432.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10432 10432 bytes
SHA-256: 918425e5052f8442da2c3a5d8dbc38d0f48b6aa78ced7eaa196978f0c370ff8a
font_02_sfnt_off00012857.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12857 16140 bytes
SHA-256: 2732c78df68b4531e26da51a256f0f9ab881cb8a96d1886ade34872d88eeece3

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