Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bcd1fabd5f0af3a…

MALICIOUS

PDF

71.8 KB Created: 2021-02-06 06:20:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 92ab07984b80096b3c773b6d005328a7 SHA-1: 71a508e81cf792a3b7b9bff7ba53a29b78a92b78 SHA-256: 9bcd1fabd5f0af3a15c29f17d9f8c31e64512f8fbcf478846ed85def67b32ece
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document body contains a link that directs users to a suspicious URL, likely a phishing or malware distribution site. The presence of embedded URLs and the overall detection score suggest this PDF is designed to trick users into visiting a malicious domain, potentially for credential harvesting or further malware delivery.

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://leonvi.ru/aws?utm_term=best+ipad+pro+app+to+markup+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4452154/normal_5fee537f44f68.pdfIn PDF document text
    • http://hookup157.site/chet_holmes_ultimate_sales_machinecfok4.pdfIn PDF document text
    • http://banquepopulaire-fr.org/emerson_tv_owners_manualsya36.pdfIn PDF document text
    • http://tomandbxof.site/soda_player_chromecastg8ins.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460233/normal_5fe4115d4ee87.pdfIn PDF document text
    • http://vizit.store/lawagazowomatitajur6lqk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402517/normal_601852e267493.pdfIn PDF document text
    • http://dodemawaj.iblogger.org/konica_bizhub_c220_manual.pdfIn PDF document text
    • https://guzaxogovi.weebly.com/uploads/1/3/4/6/134651677/88c7fe671.pdfIn PDF document text
    • https://wididalinur.weebly.com/uploads/1/3/3/9/133986726/1e4453cf79.pdfIn PDF document text
    • http://loveantravel.xyz/luponiwatonimurujugi2iw0x.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/xajowu/acute_appendicitis_case_report.pdfIn PDF document text
    • https://s3.amazonaws.com/juliziwojatige/ballpark_estimate_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/werowibovezoje/38895981134.pdfIn PDF document text
    • http://xabuvijuj.rf.gd/sheet_metal_fabrication_bristol.pdfIn PDF document text
    • http://livukuxuperum.epizy.com/brisbane_tv_guide_motogp.pdfIn PDF document text
    • http://kukadafimi.rf.gd/best_naruto_shippuden_game_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/lusegokaves/lejexulojexab.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_off0000dbdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBDC 5268 bytes
SHA-256: 575a0d894fbfc212689a172859a3b1ff22d71388903bdadc9885529161d11c7c
font_01_sfnt_off0000edb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDB6 10772 bytes
SHA-256: 5f4acb703067bbfcb45b2ee1a64f6df02501ebe757eb5fb303814fba1ba62250

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