Malicious PDF — malware analysis report

Static analysis result for SHA-256 77ac00ec6be28620…

MALICIOUS

PDF

152.1 KB Created: 2021-03-17 09:20:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 36c0fefe4623eaedccbd06fbf870e8fc SHA-1: ce57fe313e830fe0b6516cd2337b98a4ba646f26 SHA-256: 77ac00ec6be286203f82a9ce1f654b79d45c7025d4447711bc01021151cf2a60
96 Risk Score

Malware Insights

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

The PDF file contains a heuristic indicating an external URI, which points to a suspicious domain. The document body, though heavily obfuscated, contains text related to 'list of political ideologies pdf' and 'wkhtmltopdf', suggesting a lure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://mezovuduw.ru/award?keyword=list+of+political+ideologies+pdf PDF link annotation
    • https://cdn.sqhk.co/zogobadakedu/iidgfjc/28439532854.pdfIn PDF document text
    • https://cdn.sqhk.co/pugijuzo/kQgeY7H/37844254440.pdfIn PDF document text
    • https://cdn.sqhk.co/sadirorig/fifhjdq/97488946225.pdfIn PDF document text
    • https://cdn.sqhk.co/zodenizekija/PNZjazQ/jawekawisi.pdfIn PDF document text
    • http://reduslim-italy.site/us_army_sergeant_pay_scalewxfw1.pdfIn PDF document text
    • http://malespw.xyz/house_tree_person_descriptionllfx7.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/sukobogixe/77132616336.pdfIn PDF document text
    • https://4bbf79d8-97e4-42de-9a75-948158c354f0.filesusr.com/ugd/52f5d3_194c0bb139f94ee585181d5a30e0e985.pdf?index=trueIn PDF document text
    • https://8ecf7690-1f99-4e28-a4b6-3228ba9731d7.filesusr.com/ugd/63d3ad_3dffb3bc16464e40997aea342f9e1175.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/pesetufavo/19118022107.pdfIn PDF document text
    • https://s3.amazonaws.com/dazifozixawus/guide_michelin_route_belgique.pdfIn PDF document text
    • https://s3.amazonaws.com/lakujusitejojet/dimensional_analysis_worksheet_2_answer_key_with_work.pdfIn PDF document text
    • https://s3.amazonaws.com/xisefowu/hp_probook_430_g6_notebook_pc_datasheet.pdfIn PDF document text
    • http://bemabam.myartsonline.com/tibaxagabariki.pdfIn PDF document text
    • https://s3.amazonaws.com/sugosubexez/cell_organelle_worksheet.pdfIn PDF document text
    • https://11fe2947-f393-4df3-905d-f9f3730e834a.filesusr.com/ugd/b1b16e_b7ea534783034f638a7e442528fad6cc.pdf?index=trueIn PDF document text
    • https://297de083-771a-4730-a3b8-a2afe8c7d209.filesusr.com/ugd/47424f_435aca36271c441b879b6dc2835733e2.pdf?index=trueIn PDF document text
    • http://miganuvag.myartsonline.com/atkins_physical_chemistry_9th_edition_student_solution_manual.pdfIn PDF document text
    • https://24d1f61b-f5c5-4d2f-8180-62589f44e8d8.filesusr.com/ugd/eed56f_95e09ce098a94fb29ba09915f50fb005.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/vapelurowar/zules.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_off000216a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x216A8 5168 bytes
SHA-256: 354d01f48403f2fc4533770a19a0c0743ff1d4fe974422f02c793d2d02d377fe
font_01_sfnt_off0002285e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2285E 14408 bytes
SHA-256: 570c6d76e181291b35c8219f2e12e9d504521a061f061ef1f065f6dc3c10e8e7

Open this report in the interactive analyzer, or submit your own file for analysis.