Malicious PDF — malware analysis report

Static analysis result for SHA-256 152bd9df33ad0448…

MALICIOUS

PDF

82.0 KB Created: 2021-03-13 23:02:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 17119028b5228165cff3fab74ee3f6fc SHA-1: 9f60e565664dcb5d0105e44c0ff279c216ac2e21 SHA-256: 152bd9df33ad0448d99983a6347d093c647b6da595b4e0d7adf3dffd6f6e5b70
96 Risk Score

Malware Insights

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

The file is a PDF that contains an embedded URI pointing to a suspicious domain, likely intended to trick the user into downloading further malicious content. ClamAV detection and ML classification strongly indicate malicious intent, consistent with phishing or malware distribution. No scripts were extracted, but the presence of embedded URLs and the overall detection profile suggest a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://nipisod.ru/award?keyword=february+2020+marathi+calendar+pdf PDF link annotation
    • https://cdn.sqhk.co/fokodusi/BsmjcUe/wodudojogefimina.pdfIn PDF document text
    • http://zogigokilogipex.22web.org/41960860995.pdfIn PDF document text
    • https://cdn.sqhk.co/vasibejovej/mgi25if/my_lips_are_sealed_movie.pdfIn PDF document text
    • https://cdn.sqhk.co/ropesuzuruf/YEyVUsB/54003695844.pdfIn PDF document text
    • https://cdn.sqhk.co/videbamez/U1KHgiL/router_mobile_3g_r1000.pdfIn PDF document text
    • https://cdn.sqhk.co/nivodoruw/FnJWHif/100_days_my_prince_review.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://s3.amazonaws.com/woxewiwupir/kezote.pdfIn PDF document text
    • http://topatux.rf.gd/vedeliped.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9d2857f8-c7d6-40cf-b36f-3a939a1fe3f0/which_religion_came_first_christianity_or_judaism.pdfIn PDF document text
    • https://s3.amazonaws.com/wifiduxezo/what_is_the_best_way_to_start_trading_stocks.pdfIn PDF document text
    • http://sokagozu.rf.gd/tissot_seastar_1000_chronograph_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dde826ba-cfc2-481f-b460-241f3d1fc678/dikizigelumoguxaz.pdfIn PDF document text
    • https://s3.amazonaws.com/pevuwarobuvowa/tamajenizuzivokaba.pdfIn PDF document text
    • https://s3.amazonaws.com/mejigavukolu/when_did_christianity_begin_in_england.pdfIn PDF document text
    • https://s3.amazonaws.com/gotijejaj/bell_tent_sewn_in_groundsheet.pdfIn PDF document text
    • https://s3.amazonaws.com/ganubatebedoxez/gidonubarefewenubamali.pdfIn PDF document text
    • http://zodexalanokaxaj.rf.gd/gimupaturokezowado.pdfIn PDF document text
    • https://s3.amazonaws.com/mokixetat/fapitipuxagakumoruza.pdfIn PDF document text
    • https://s3.amazonaws.com/vovuzize/latest_tamil_movies_utorrent.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ff0fe88-1f6b-4911-a764-edc8920cd276/sepegewejuwatupurim.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_off0000eb35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB35 5688 bytes
SHA-256: 9a1267a975eb7cf9b59fc37fdc7c64599078d2122b38e0297e41f8ff13928db1
font_01_sfnt_off0000fe6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE6D 10556 bytes
SHA-256: 49389117dc9540fb4ab8e9078c10c2dd3cfab37887eb39828ec29785f4891dd0
font_02_sfnt_off000122c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x122C9 6668 bytes
SHA-256: 0f5c1f0956519a791951694d105cee54bd0a113371499df4ee71078a041f76d2

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