Malicious PDF — malware analysis report

Static analysis result for SHA-256 f09720f2ed84943d…

MALICIOUS

PDF

79.3 KB Created: 2021-03-05 19:43:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: beaa9fa744afce3225dd691610535721 SHA-1: 036290a568020ef8326f8f2b4a821b946986313e SHA-256: f09720f2ed84943d6c72fe802774fc1252e7e0482492338db126747c49977855
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL pointing to a suspicious domain, identified as malicious by ClamAV and a machine learning classifier. The document body, though partially corrupted, suggests a lure related to a literary summary, likely to trick users into visiting the malicious URL. No scripts were extracted, but the presence of an external URI and the high confidence malicious verdict indicate a phishing or malware distribution attempt.

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://maypoin.ru/123?utm_term=midsummer+night%2527s+dream+act+4+short+summary PDF link annotation
    • http://koteyarn.moscow/data_warehousing_and_data_mining_notes_jntu5f15m.pdfIn PDF document text
    • https://cdn.sqhk.co/sunalikefazo/ihjidks/divorovebulefi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403260/normal_5fcb025f9e8d6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367905/normal_5ffe0f3a580cc.pdfIn PDF document text
    • http://parkji5x.xyz/52905875484pjejy.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414169/normal_6033be23898d0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453142/normal_5ff4236c05172.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4503533/normal_60386b20a5398.pdfIn PDF document text
    • http://mexicotop.xyz/maths_important_formulasn12ah.pdfIn PDF document text
    • https://cdn.sqhk.co/konafomaz/fC0Zhd7/xaronujokosexokepagu.pdfIn PDF document text
    • http://getliterate.online/13008122281a65sp.pdfIn PDF document text
    • http://zhk-rekord.info/how_to_use_convection_in_whirlpool_microwave4skyi.pdfIn PDF document text
    • https://cdn.sqhk.co/pomodizad/Nr8gjjx/download_bali_ghost_battle_mod_apk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://6d4cd3b7-91e9-43ac-92b9-205473f1e50d.filesusr.com/ugd/28146e_618c4c8f4e0b4f0c902e3a6530b95443.pdf?index=trueIn PDF document text
    • http://jagutebi.epizy.com/the_distance_between_us_book_2_chapter_12_summary.pdfIn PDF document text
    • https://s3.amazonaws.com/bevarolimesale/phpspreadsheet_create_chart.pdfIn PDF document text
    • https://s3.amazonaws.com/zetubakuz/other_income_in_balance_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/jesidofefe/disney_cast_member_complimentary_tickets.pdfIn PDF document text
    • https://c7972686-9310-4d97-8ac3-15e828887225.filesusr.com/ugd/8a419d_36a4baac79d94dd4b86b3fbae1d58b34.pdf?index=trueIn PDF document text
    • http://zosenesewil.rf.gd/ssc_stenographer_online_form_date.pdfIn PDF document text
    • https://s3.amazonaws.com/pukiza/philippine_accounting_standards_2.pdfIn PDF document text
    • https://s3.amazonaws.com/galinikagopit/fun_essay_prompts_high_school.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ec62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC62 5432 bytes
SHA-256: be90a1d06f086ed069e45bc378a4ece986d63a1a136f1b9fca2fbb51f9926478
font_01_sfnt_off0000fec1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEC1 10152 bytes
SHA-256: 4df8e5480417cd82ab254f6d88a1c186b177955ddaf0aec1ae168f16b0e227f5
font_02_sfnt_off00012176.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12176 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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