Malicious PDF — malware analysis report

Static analysis result for SHA-256 728367819386dc76…

MALICIOUS

PDF

72.3 KB Created: 2021-03-17 09:19:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: feb73236d8c4b9f9ff123131ee8c342c SHA-1: 66fd353dd5edcbb5c432910cc867dd158c0f774c SHA-256: 728367819386dc7693541fd39511d2549deff9032e29ecefde3f95256314693a
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, and ClamAV detection confirms it is a phishing trojan. The document body, though obfuscated, suggests a lure related to 'news reporter bloopers videos' to entice users to click the malicious link. No scripts were extracted, but the presence of external URIs and the ML classifier's high confidence indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://ponafet.ru/123?utm_term=news+reporter+bloopers+videos PDF link annotation
    • http://fixebojamofi.iblogger.org/daru_peeni_band_kar_de_mp3_song_download_dj.pdfIn PDF document text
    • https://cdn.sqhk.co/baxotonad/Yhbi0Sz/download_meetme_for_pc_windows_7.pdfIn PDF document text
    • http://mugedly.xyz/how_to_draw_a_natural6iu9i.pdfIn PDF document text
    • https://cdn.sqhk.co/tozegatopaxu/81rIyl8/halloween_party_themes_for_adults.pdfIn PDF document text
    • https://cdn.sqhk.co/wirowanorax/fbUM8gc/18115198251.pdfIn PDF document text
    • https://cdn.sqhk.co/lizuloka/jJdjaAS/instruction_sheet_template_word.pdfIn PDF document text
    • http://vataponuxizeliz.mywebcommunity.org/33311344026.pdfIn PDF document text
    • http://feyakast.online/razowovibi7m6uk.pdfIn PDF document text
    • http://xsale.trade/watts_premier_ro_system_partsv2foj.pdfIn PDF document text
    • http://xewosaxebojufir.iblogger.org/66848127878.pdfIn PDF document text
    • http://nagajavanof.22web.org/65727528818.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/kozewuposoridil/2373738553.pdfIn PDF document text
    • https://s3.amazonaws.com/xamapebonijos/tezozexomumudivabute.pdfIn PDF document text
    • http://katufimeg.rf.gd/88388368874.pdfIn PDF document text
    • http://zodiripek.myartsonline.com/87388776402.pdfIn PDF document text
    • http://robeguf.epizy.com/friendship_day_images_for_whatsapp_dp.pdfIn PDF document text
    • https://s3.amazonaws.com/vonuxagupeduze/spektrum_dx7se_review.pdfIn PDF document text
    • https://s3.amazonaws.com/sefepugolupalax/54075897551.pdfIn PDF document text
    • https://s3.amazonaws.com/lowuwofuxali/cervical_cerclage_acog_guidelines.pdfIn PDF document text
    • http://xesapekaf.epizy.com/what_charity_will_pick_up_furniture.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_off0000dc6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC6F 5004 bytes
SHA-256: 009e4f810b0bd3481798cd3b53eda9f91fc5b93b66dd8f494899c0f3b4e42acf
font_01_sfnt_off0000ed94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED94 11232 bytes
SHA-256: 4d225e3ad1f8ab447c06919c5fe3dbb0bb35fc9c1178aa81f673312916bb907c

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