Malicious PDF — malware analysis report

Static analysis result for SHA-256 36c976b80e49dc0b…

MALICIOUS

PDF

78.1 KB Created: 2021-03-30 00:09:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 15936027ef3d787290bbc24ae1a32a60 SHA-1: bca2ed8f9a994e71da2b29b2f2296ff92936ddcf SHA-256: 36c976b80e49dc0bc3f581da08c477872273ed98288c7de917cff661acc0bb18
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. The embedded URL and document body content suggest a lure related to downloading software, likely a malicious payload disguised as a legitimate tool. While no scripts were explicitly extracted, the PDF format can embed JavaScript, which is often used for malicious redirection or exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

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://nipisod.ru/wix?keyword=telecharger+apk+windows+10+insider+tool
    • https://cdn-cms.f-static.net/uploads/4452835/normal_6018a0d920915.pdf
    • http://vk-settings-change.online/faxojomofesovaka4evc.pdf
    • https://gumevuwogixuxuj.weebly.com/uploads/1/3/5/3/135317748/8020436b429df5.pdf
    • https://zolowokixo.weebly.com/uploads/1/3/0/7/130738875/5586894.pdf
    • http://lovechat24.club/churidar_surgical_strike_moviervcz9.pdf
    • https://static.s123-cdn-static.com/uploads/4472206/normal_5ff524a1bc85a.pdf
    • http://mopegejeno.22web.org/problems_in_analytic_number_theory_m._ram_murty.pdf
    • http://hushseo.online/34312002384az2js.pdf
    • https://kamutimasevukov.weebly.com/uploads/1/3/1/8/131856564/fc2c4ac903aab6f.pdf
    • http://gouliwer.online/83913273056j639v.pdf
    • http://nejuwenazi.iblogger.org/kiran_news_agency_alp_answer_key.pdf
    • http://bahis-sikayet.com/download_star_wars_galaxy_of_heroes_for_pcaq17d.pdf
    • http://insurancesouk.com/troy_bilt_weed_eater_spark_plug_replacementiorms.pdf
    • https://cdn-cms.f-static.net/uploads/4495037/normal_60561d0c3752e.pdf
    • https://mepanomelisegil.weebly.com/uploads/1/3/4/8/134899905/mepepixep.pdf
    • https://static.s123-cdn-static.com/uploads/4500674/normal_5fed51d0bf975.pdf
    • http://lavijowonuxogu.22web.org/what_do_conflict_theory_and_feminist_theory_have_in_common.pdf
    • http://help-feedback-amzn3.xyz/zujosaxigunidexixzb61z.pdf
    • https://runigofotizete.weebly.com/uploads/1/3/4/4/134433234/3b074.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/d1a02809-28b8-425d-af2a-085ef719778d/9994457531.pdf
    • https://uploads.strikinglycdn.com/files/50d34b39-5e37-4e59-a190-d25360a8e8d2/como_crear_un_archivo_zip_con_winrar.pdf
    • http://dipusoxitiruvu.rf.gd/steps_of_isometric_drawing.pdf
    • https://uploads.strikinglycdn.com/files/b1a3ecd8-3eaf-4141-988a-b022b38f8d69/define_qualitative_research_in_social_work.pdf
    • https://uploads.strikinglycdn.com/files/63db0f1c-c4e8-4ed6-94a0-af4f83078c01/idylis_dehumidifier_parts.pdf
    • https://uploads.strikinglycdn.com/files/f995dec8-7cf7-4ac6-a98f-fa9e6c756536/john_deere_115_auto_drive_belt_diagram.pdf
    • http://fadowudi.rf.gd/24943139345.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_off0000f003.bin
b8b08c54421a9e9c72237e27b3762a911938297f84130615bce1e301a441287c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF003 5632 bytes
font_01_sfnt_off00010339.bin
3b37626cb0eced5354553fe9af3e91256a56d2a1f5b9a23afef4e0d1aa7ccd25		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10339 11888 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.