Malicious PDF — malware analysis report

Static analysis result for SHA-256 376f75738b471d44…

MALICIOUS

PDF

100.6 KB Created: 2021-03-04 18:11:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: c7863c2ce7ed0597be39d074de6e6009 SHA-1: aec7d7c26106fe884f8cd125427a487a4b3248fd SHA-256: 376f75738b471d4430613dd74f106bbd7c2a2f6fa2f3df2a9774544cb9bac05d
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, likely intended for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to a malicious site, potentially as part of a phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://dugedepap.ru/123?utm_term=melian+dialogue+summary+sparknotes PDF link annotation
    • http://luxasireku.sportsontheweb.net/honda_riding_lawn_mower_parts_near_me.pdfIn PDF document text
    • https://peturenu.weebly.com/uploads/1/3/4/4/134401199/dovitifelapavu-wokivamabovuw.pdfIn PDF document text
    • https://jevilorusijugif.weebly.com/uploads/1/3/0/8/130874204/8b2f5e4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457862/normal_603af607adb6c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414860/normal_6003879dc35ad.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485448/normal_5ffcf6699e1ae.pdfIn PDF document text
    • https://xegezutiraviral.weebly.com/uploads/1/3/0/7/130775125/e559159c218.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414867/normal_5fd7d5a792ea9.pdfIn PDF document text
    • http://gibelineg.sportsontheweb.net/difference_between_food_web_and_food_chain_in_tabular_form.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/1794151.pdfIn PDF document text
    • https://poxixarusel.weebly.com/uploads/1/3/4/1/134131789/9714342.pdfIn PDF document text
    • http://xoziduso.mypressonline.com/audacity_of_hope_quotes.pdfIn PDF document text
    • https://josuriwomevopi.weebly.com/uploads/1/3/4/7/134769094/nomaxubotejozasud.pdfIn PDF document text
    • http://kejoxemubogese.mywebcommunity.org/28702959834.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474465/normal_602fdd4d43c96.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462037/normal_5ffa207e8741a.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/fovezewi/fanreport_bgld_2_liga_sd.pdfIn PDF document text
    • https://s3.amazonaws.com/dezajok/gujaf.pdfIn PDF document text
    • https://s3.amazonaws.com/jixerubowi/my_asus_service_center_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/matogapibelifiv/navra_bayko_status_video.pdfIn PDF document text
    • https://s3.amazonaws.com/jumedemimo/workforce_management_centre_aptitude_test_format.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012cb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12CB0 5452 bytes
SHA-256: ca98627dc1c17c026d48598916ea325fda972fd2c26d969ca7d5f81107f5ff08
font_01_sfnt_off00013f3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13F3D 15596 bytes
SHA-256: 23866d5a3e089c33335c8b81e24f90fa7bde1d9cda747153b1565c1807fabe8d
font_02_sfnt_off00016fba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16FBA 16092 bytes
SHA-256: ea75db71c9df7250347a03039f742fcd189f5fc3f08964e696816fa8b5227073