Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ed558b20a4ae8d0…

MALICIOUS

PDF

73.2 KB Created: 2021-02-06 18:07:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 5dc6165495e9a4e19551dfdb622c5a7c SHA-1: df15013ea69ac1d076bac882f3b91dcfd531ca82 SHA-256: 0ed558b20a4ae8d04b49d203fc882e7d2f5aa1e64ced830d7faea33f4bda1427
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document body, though heavily obfuscated, contains text suggesting it is a lure for a 'Janeman bhojpuri video song'. The presence of numerous embedded URLs, including 'https://bologen.ru/aws?utm_term=janeman+bhojpuri+video+song++3gp', strongly suggests these are used to redirect users to malicious content or phishing pages. No scripts were extracted, but the PDF structure and embedded URLs point towards a phishing or malware distribution attempt.

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://bologen.ru/aws?utm_term=janeman+bhojpuri+video+song++3gp PDF link annotation
    • https://cdn.sqhk.co/wofetewa/UDjagjZ/mizamogivivekewodew.pdfIn PDF document text
    • https://cdn.sqhk.co/nomazotesi/FwKiaBt/guragamo.pdfIn PDF document text
    • https://cdn.sqhk.co/jufebarur/gsTgjZN/81444319672.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467955/normal_5fd38bdfe9e11.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378171/normal_5fcf0afe9aaa0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383444/normal_6006b902f0b2f.pdfIn PDF document text
    • https://cdn.sqhk.co/zogobadakedu/b4uAXib/download_game_battle_city_super_tank_1990.pdfIn PDF document text
    • https://cdn.sqhk.co/kulobibab/ejcjeNl/ez_loader_trailer_rollers.pdfIn PDF document text
    • https://cdn.sqhk.co/mibuxedufexi/YihjfNw/82445914773.pdfIn PDF document text
    • https://cdn.sqhk.co/rozopebak/hfidIif/74102780347.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/lerezazo/19009697732.pdfIn PDF document text
    • http://wojegopuda.rf.gd/basharat_video_song.pdfIn PDF document text
    • http://noxikemudenuma.epizy.com/car_title_transfer_form_idaho.pdfIn PDF document text
    • http://repafow.epizy.com/29818814404.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_off0000dda9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDA9 5772 bytes
SHA-256: 6b8befea5299edbd9c97ad944dd91f50afa5ee863cb69bb92ead193ba38a1c01
font_01_sfnt_off0000f129.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF129 11408 bytes
SHA-256: cab6345954e2a71c44cb737b3956615293638b496a8fb133fd4b5504069694fe