Malicious PDF — malware analysis report

Static analysis result for SHA-256 d63911ddab2d718c…

MALICIOUS

PDF

77.1 KB Created: 2020-12-31 05:11:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 451eec2d2f42dc3627efa2f407a32896 SHA-1: b779d9f28c7553ad594fef631c8731feac73496e SHA-256: d63911ddab2d718cd2be7e91f8a2af6ac2d2576c2765517bbc3c63d79d238625
96 Risk Score

Malware Insights

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

The PDF file contains a lure related to the 'Bioshock collection parents guide' and embeds a URL pointing to 'trafffi.ru'. ClamAV detection and ML classification strongly indicate maliciousness. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure suggest a phishing or redirection attempt, likely leveraging embedded JavaScript for execution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://trafffi.ru/123?utm_term=bioshock+collection+parents+guide PDF link annotation
    • https://cdn.sqhk.co/gajerivab/796high/dopivufenif.pdfIn PDF document text
    • https://cdn.sqhk.co/depifozopupe/iME7jbU/8667225690.pdfIn PDF document text
    • https://cdn.sqhk.co/zudilubal/fqgd8hg/switch_console_only_ebay.pdfIn PDF document text
    • https://cdn.sqhk.co/tegatiwuwax/ia7jh7H/basketball_timeline_of_events.pdfIn PDF document text
    • https://cdn.sqhk.co/dodagirojep/UGMZGhj/play_store_install_app.pdfIn PDF document text
    • https://cdn.sqhk.co/zudilubal/WPTsuAr/fadovubojiboxurubuk.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://s3.amazonaws.com/luxelula/cryogenic_rocket_engine_seminar.pdfIn PDF document text
    • https://s3.amazonaws.com/mokuwanibof/zojisozakudobat.pdfIn PDF document text
    • https://s3.amazonaws.com/tarizirefevifab/49115666751.pdfIn PDF document text
    • https://s3.amazonaws.com/susonanezaj/gezibibetepu.pdfIn PDF document text
    • https://s3.amazonaws.com/resixexi/transformer_bumble_bee_kite.pdfIn PDF document text
    • https://s3.amazonaws.com/bibejovixapis/atentamente_en_una_carta_formal.pdfIn PDF document text
    • https://s3.amazonaws.com/nagev/69072331626.pdfIn PDF document text
    • https://s3.amazonaws.com/jivuxo/nccbl_annual_report.pdfIn PDF document text
    • https://s3.amazonaws.com/tigovatolis/marathi_love_attitude_status.pdfIn PDF document text
    • https://s3.amazonaws.com/rubidokezive/std_12_english_textbook.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_off0000e319.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE319 5328 bytes
SHA-256: 05dd37f4bdc311c265e4e1a90ec195dd07518629f5e5da0db2ba67a9f7554331
font_01_sfnt_off0000f520.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF520 10504 bytes
SHA-256: 3327a8b6559f6c7c89c514e479281a03541ad5c537c09b6ba6a8bb0449d18e5c
font_02_sfnt_off00011922.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11922 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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