Malicious PDF — malware analysis report

Static analysis result for SHA-256 500f321b37358d5b…

MALICIOUS

PDF

134.6 KB Created: 2021-03-13 12:45:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e476d87879c349b94bb9a87873d37b48 SHA-1: 526ab41a3939eb963e0a412765ff96f0484b85b8 SHA-256: 500f321b37358d5b8179dd5d91f76e422c7ceb6a268c8c81fcb6fee7a32d2093
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains multiple embedded URLs, one of which is presented as a lure for 'Maharashtra caste list pdf in marathi 2020'. The presence of these URLs suggests the document is designed to trick users into navigating to potentially harmful external resources, likely to download further malware or engage in phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://vilenefex.ru/award?keyword=maharashtra+caste+list+pdf+in+marathi+2020
    • https://vavujajakakef.weebly.com/uploads/1/3/0/7/130740385/7789327.pdf
    • http://rumigiwataj.getenjoyment.net/taxudeguxobibovunuvudanuj.pdf
    • http://lorakuze.sportsontheweb.net/wibisagumeb.pdf
    • https://cdn.sqhk.co/wevafofed/3gdhgTw/80s_music_videos_number_one_hits.pdf
    • https://pixumoxijabana.weebly.com/uploads/1/3/4/7/134748481/lisasagip_wogeviz_fufiwevoto.pdf
    • https://nezikipinafuzis.weebly.com/uploads/1/3/4/3/134316621/bizozab.pdf
    • http://lologunaw.mygamesonline.org/bangla_hadis_book_free_download.pdf
    • http://wivaserana.mywebcommunity.org/30485611986.pdf
    • https://cdn.sqhk.co/vulovosovem/jerihEz/screaming_chicken_toy_vine.pdf
    • https://cdn.sqhk.co/fegukajebaj/hhuFshj/xawadizaz.pdf
    • https://cdn.sqhk.co/kifuzopeko/4aWUurb/spinach_pasta_recipes_vegan.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/tafogusegabomu/filamom.pdf
    • http://jowosos.myartsonline.com/odisha_govt_calendar_2020.pdf
    • https://s3.amazonaws.com/xeponodij/bufaloruxasitigila.pdf
    • https://uploads.strikinglycdn.com/files/19672742-ee4a-48f3-be7a-85f513d1e474/dazuperisixej.pdf
    • https://s3.amazonaws.com/nuselufuzo/centerpoint_rifle_scopes_4x32.pdf
    • https://s3.amazonaws.com/zosevid/how_to_find_ticker_symbols.pdf
    • https://s3.amazonaws.com/sumesawoxajew/bootstrap_free_dashboard_templates_2017.pdf
    • https://uploads.strikinglycdn.com/files/04a4efbe-4da5-4fc7-96fc-22ed87b6c58a/15841491726.pdf
    • http://kizufalugomux.atwebpages.com/84475042498.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001cd79.bin
665cf13e2a87b88aa04b5f6bf9fd7a7e09dde2f50a83f9e36f70b9ceabc16186
pdf-font-stream PDF embedded font (sfnt) at offset 0x1CD79 5676 bytes
font_01_sfnt_off0001e0ac.bin
fb25520c8c7462320f9e98b43c2d2b7fa75e64130194b59432c97ad97438f3fe
pdf-font-stream PDF embedded font (sfnt) at offset 0x1E0AC 13584 bytes