Malicious PDF — malware analysis report

Static analysis result for SHA-256 c25a8b2a49fb9c2d…

MALICIOUS

PDF

74.8 KB Created: 2021-03-30 08:01:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: e4d3df0bbbd78c247b8ffd6102c77e71 SHA-1: 0932eb2cc65fd2ba61f7f4fb55808ba71fea5663 SHA-256: c25a8b2a49fb9c2d61081a38e4f955bc8bff807d87e1e04ca664c5a081e77599
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://resalured.ru/award?keyword=basic+paleontology+pdf PDF link annotation
    • https://vedewoxid.weebly.com/uploads/1/3/0/7/130738666/3469995.pdfIn PDF document text
    • http://berefiruzo.mygamesonline.org/sarang_burung_walet.pdfIn PDF document text
    • https://visizejafu.weebly.com/uploads/1/3/6/0/136093068/779165.pdfIn PDF document text
    • http://starconflict-game.ru/11900845093f9ub9.pdfIn PDF document text
    • https://xolopebowuraj.weebly.com/uploads/1/3/4/6/134600193/ponulugu_gaxodo_letapegepun.pdfIn PDF document text
    • https://fulojexerewo.weebly.com/uploads/1/3/5/3/135345176/vadikokurajime-galidunibud-favixamebegelij.pdfIn PDF document text
    • http://pevewoxoxup.scienceontheweb.net/zafagomodixe.pdfIn PDF document text
    • http://idealslimitaly-official.site/the_wanderer_lyrics_oargan3z.pdfIn PDF document text
    • http://reestr.site/juraxarumiezmtk.pdfIn PDF document text
    • https://sozewewivekina.weebly.com/uploads/1/3/4/8/134874272/07456fa2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bidejepeko.onlinewebshop.net/aws_vpc_interview_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/tezude/xanumobarujaveluvob.pdfIn PDF document text
    • http://bexovivuvere.myartsonline.com/vertical_number_line.pdfIn PDF document text
    • https://s3.amazonaws.com/jiguwuzobozobaz/40k_tyranids_codex.pdfIn PDF document text
    • https://s3.amazonaws.com/tigovatolis/illinois_annual_report_filing.pdfIn PDF document text
    • https://s3.amazonaws.com/pokorevalaxex/latest_odia_film_song_video.pdfIn PDF document text
    • https://s3.amazonaws.com/marimejerebo/janavexuzokewu.pdfIn PDF document text
    • http://zorikeroz.onlinewebshop.net/85966310090.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_off0000e86d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE86D 5376 bytes
SHA-256: 11694869ba283e58365f7a3c6418cc36096490b70f4d35a7460360c1096e13c9
font_01_sfnt_off0000fada.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFADA 10372 bytes
SHA-256: f2f1c23bd49318a7cf43537f5e59d080c8307f2ec03098e9bdc8caf262edf3a0

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