Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1682773573e718a…

MALICIOUS

PDF

237.2 KB Created: 2021-03-24 23:50:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 897ecc5598cf06618b3fa99346cd0798 SHA-1: 29936f6627c691d59edc9bbe5b3f0d47c432a72a SHA-256: d1682773573e718a8786d15713adc2278994b8139b6f44649bede479026fd945
104 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, with a critical heuristic indicating it is a phishing trojan. The document body contains urgency language, and an external URI points to a suspicious domain, suggesting a phishing or malware distribution attempt. While no scripts were directly extracted, the PDF structure and heuristics indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9901

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://botokaw.ru/award?keyword=osprey+operation+barbarossa+pdf PDF link annotation
    • http://zokidinodajives.getenjoyment.net/canon_rebel_xti_charger_best_buy.pdfIn PDF document text
    • http://fapenas.22web.org/2000_honda_civic_transmission_rebuild_kit.pdfIn PDF document text
    • http://fawakosiki.22web.org/mla_format_in_text_citation_newspaper_article.pdfIn PDF document text
    • http://lnstagramverificationbadge.com/56633142799rt4vr.pdfIn PDF document text
    • http://fevinoreniwelik.sportsontheweb.net/95676277160.pdfIn PDF document text
    • http://zokidinodajives.getenjoyment.net/mackie_cr1604_manual.pdfIn PDF document text
    • http://inertbhjbj.ru/continuous_flow_hot_water_system_pricedzvcz.pdfIn PDF document text
    • http://bimoriz.getenjoyment.net/gonadijuwezabelakuzuzitu.pdfIn PDF document text
    • http://xploitcrew.io/77961592022bncbc.pdfIn PDF document text
    • http://dixunawizodel.iblogger.org/27937221711.pdfIn PDF document text
    • http://republvinb.fun/dopewigerelolw9i25.pdfIn PDF document text
    • http://gujozulogisin.scienceontheweb.net/degradacion_del_suelo_definicion.pdfIn PDF document text
    • http://leafester.online/divozovunumopumugos70vji.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://5fa60de5-32ab-41ac-ba65-77330e21e623.filesusr.com/ugd/2e16aa_615001ade65e4b1bbace4b8b0a93e410.pdf?index=trueIn PDF document text
    • https://e2604e0b-f95a-4acb-b53f-a7db3827b2a1.filesusr.com/ugd/225520_c14d351f395d444f93c5a1f9c79e5a44.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a347381-9fe1-464f-9d2a-b5d9e72d74ea/53836199240.pdfIn PDF document text
    • http://futinisebepafez.rf.gd/46888833460.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/670b4cc1-b6f1-44cb-9447-a56d21ddca9b/is_citizen_watches_good.pdfIn PDF document text
    • http://pejinubonuxus.epizy.com/poe_midterm_exam_answers.pdfIn PDF document text
    • http://pifutujotot.epizy.com/free_3d_building_design_software.pdfIn PDF document text
    • http://laletanegimiw.epizy.com/descripcion_de_los_personajes_del_cantar_del_mio_cid.pdfIn PDF document text
    • http://sedilone.epizy.com/liretijikasuvimurolo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5f6bf897-b134-452c-a5a2-2b4b344668b4/vewizu.pdfIn PDF document text
    • https://4a0f17ac-6ce6-4c05-9546-25c48d39d9f7.filesusr.com/ugd/cd79e3_e965bdf26cfb4f9892c9d55f9e099501.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/5b9ea14c-ecd9-4732-925d-8cb924a678aa/python_for_data_analysis_book_for_beginners.pdfIn PDF document text
    • http://bivukakodet.rf.gd/para_q_sirve_el_acido_clorhidrico.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ce268da4-e430-445e-aebc-59756ec01697/91922886494.pdfIn PDF document text
    • https://d451e762-8e00-4155-9971-9512d28d2528.filesusr.com/ugd/b52961_451a88b122144506b05d5ad7b2fc6093.pdf?index=trueIn 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_off00036d21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36D21 5272 bytes
SHA-256: 0549e6fba1dcd91e38a236a6abf962f5a8b44cdcc9564499e3d9e32aa80034ac
font_01_sfnt_off00037f19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x37F19 11132 bytes
SHA-256: 1c51dd522d521b5999468228c495697d801ad38ed2efb99385c801b26afb293f