Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0976375fb82d4c3…

MALICIOUS

PDF

72.9 KB Created: 2021-02-23 13:53:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: b4fa03308b332831ccb412a24df2b9e6 SHA-1: 95b34d3841f0421a43b9dcfbb8ab8263424858d5 SHA-256: a0976375fb82d4c3e3d8e166d118ddb25f627849a8d88bc0306fe5bb9feb39a7
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://druttle.ru/wix?keyword=california+answer+to+complaint+template PDF link annotation
    • http://todomod.22web.org/aanewale_kal_song_1921.pdfIn PDF document text
    • http://hotita.space/sheffield_children_s_hospital_emergency_department_guidelinesxbjq5.pdfIn PDF document text
    • http://pagexanomala.22web.org/5151185032.pdfIn PDF document text
    • http://ionatr.space/18556146614eutm9.pdfIn PDF document text
    • http://jirafka.space/who_can_fix_my_dishwasherjl64k.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463005/normal_602754f100a89.pdfIn PDF document text
    • http://wiinorama.website/843657720514zlmo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451561/normal_5ff667c83df06.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ketaxesam.epizy.com/wipitobututoxitafejeres.pdfIn PDF document text
    • https://s3.amazonaws.com/jumedemimo/4675622890.pdfIn PDF document text
    • https://s3.amazonaws.com/nokiva/lilub.pdfIn PDF document text
    • https://s3.amazonaws.com/pukaridimupo/xevuguzazilamalipa.pdfIn PDF document text
    • https://s3.amazonaws.com/bivanud/67147560715.pdfIn PDF document text
    • http://vufobaratoja.epizy.com/19020661600.pdfIn PDF document text
    • http://pifutujotot.epizy.com/active_admin_actions_form.pdfIn PDF document text
    • http://bajewilogofiro.epizy.com/3551199748.pdfIn PDF document text
    • https://s3.amazonaws.com/kigavanus/episode_guide_grey_s_anatomy_season_2.pdfIn PDF document text
    • http://vekifaxofezawe.epizy.com/private_instagram_videos_mac.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_off0000e09a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE09A 5160 bytes
SHA-256: 7da7bc1d83b2b49ced322c854851dba4b829bf785f1adb6e9a513ef40bc8d9e6
font_01_sfnt_off0000f226.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF226 10536 bytes
SHA-256: ba573b4da6839dc6e4faee45e2d44fa4e9729e2ed6b26c8eb32439839721417d