Malicious PDF — malware analysis report

Static analysis result for SHA-256 08427efd87605592…

MALICIOUS

PDF

79.0 KB Created: 2021-03-25 14:56:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 4b972f1711ebccd2ff8043e95d053f71 SHA-1: 107014075a798febe92bf294c171fe9d8e795dd9 SHA-256: 08427efd8760559277a129357bc5053caf5e9573c46c2af08b2bd65ea47db290
104 Risk Score

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. It uses an urgency-based lure. 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 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://dugedepap.ru/123?utm_term=brussels+public+transport+map+pdf PDF link annotation
    • http://siteznakomstv69.space/shark_rotator_powered_lift_away_replacement_partsjze9a.pdfIn PDF document text
    • http://baffer-shop.space/lagimurawipiv90vxp.pdfIn PDF document text
    • http://megatorg.ru/writing_good_thesis_statements_worksheetgr62c.pdfIn PDF document text
    • http://sberbank.link/kekuxugonakuberanajopima9y6t7.pdfIn PDF document text
    • http://roskycnmx.com/delonghi_coffee_machine_manual_magnifica2dg2d.pdfIn PDF document text
    • http://zdorovie-vashe-vse.xyz/vlsi_technology_plummerc9122.pdfIn PDF document text
    • http://retys.fun/rii_mini_i8_manual_espaolyg34h.pdfIn PDF document text
    • http://my-favshopg.online/powerblock_elite_50_reviewgea7i.pdfIn PDF document text
    • http://retys.fun/how_much_time_it_will_take_to_learn_data_scienceoxq1r.pdfIn PDF document text
    • http://lidzadva.xyz/bcs_book_list_download7q26y.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/dudigonifu/35460866639.pdfIn PDF document text
    • https://s3.amazonaws.com/selivuvumepaveb/8676223086.pdfIn PDF document text
    • https://s3.amazonaws.com/jokotaziweluge/42372116148.pdfIn PDF document text
    • http://xonesopidazuju.epizy.com/beautiful_boy_photo_hd.pdfIn PDF document text
    • https://s3.amazonaws.com/lumixi/how_to_program_farberware_5_cup_coffee_maker.pdfIn PDF document text
    • https://s3.amazonaws.com/jifedefujodu/67219219800.pdfIn PDF document text
    • https://s3.amazonaws.com/pesetufavo/brand_identity_design_template_free.pdfIn PDF document text
    • http://zuriromaruwo.epizy.com/twinkle_twinkle_little_star_full_poem.pdfIn PDF document text
    • https://s3.amazonaws.com/pokixovuxik/animal_kingdom_worksheets_middle_school.pdfIn PDF document text
    • https://s3.amazonaws.com/kuxegu/famitebibogijagisemozumut.pdfIn PDF document text
    • https://s3.amazonaws.com/perurulexi/64936718354.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_off0000f70c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF70C 5492 bytes
SHA-256: f7740535c7413bd355d0dab609d795d3faea0add2c19c1e4e3d086882469589e
font_01_sfnt_off00010998.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10998 11008 bytes
SHA-256: 40504f1091ddac66bf19288c4bb58cddc9749c5cf14d7c39311b09d1aca92016

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