Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9dc05bcda5d53aa…

MALICIOUS

PDF

88.8 KB Created: 2021-03-01 01:49:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: a4fbc69b35fdb0b751388d867e12da60 SHA-1: 9f82c534a4a73c05b5f9c7d042b850a3335e9456 SHA-256: c9dc05bcda5d53aa27ba2a7e034ad2c667cbd255661af050c1b3b9c2b24c224e
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-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://dugedepap.ru/aws?utm_term=e+w+bullinger+gospel+in+the+stars PDF link annotation
    • https://cdn.sqhk.co/libodinidep/jJjhiha/lejabisidovugumamoraritaz.pdfIn PDF document text
    • http://xofofumireke.mypressonline.com/nisiru.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415061/normal_602ee2b23cbf4.pdfIn PDF document text
    • https://cdn.sqhk.co/sejarepezibo/Ziggqgi/login_to_indeed_job_search.pdfIn PDF document text
    • https://cdn.sqhk.co/devurekon/iaRhits/falling_inn_love_movie_2019.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377102/normal_5fe0f11e27981.pdfIn PDF document text
    • https://cdn.sqhk.co/malevevipali/bzjugjc/noodle_master_hamilton.pdfIn PDF document text
    • https://cdn.sqhk.co/gelowidabik/ykneidQ/82583916359.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369930/normal_6012c5a338528.pdfIn PDF document text
    • https://cdn.sqhk.co/noloxunipe/grhhUjg/bingo_pinball_dragons.pdfIn PDF document text
    • http://nasufulorejuwe.mywebcommunity.org/76789055006.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445130/normal_6009d48fd94f4.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/loranoduzuja/kubota_bx25d_price_new.pdfIn PDF document text
    • https://s3.amazonaws.com/lowebemuwojiso/conformational_analysis_of_substituted_cyclohexane.pdfIn PDF document text
    • https://s3.amazonaws.com/lomogas/pirates_of_caribbean_game_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/gupawupigawono/dufowewojego.pdfIn PDF document text
    • http://nivuzujanux.myartsonline.com/un_mundo_feliz_resea_critica.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_off00011ec9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11EC9 5268 bytes
SHA-256: 509bc73441b4c034a4aa9c51b60c0f79353800cd410c01425aadb6432f725a8b
font_01_sfnt_off000130c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x130C1 11116 bytes
SHA-256: 5a0b4e1f4dbdf560bbbdf4c4fcfb32c111bd6de65b9c54b095a769bf09b2c223