Malicious PDF — malware analysis report

Static analysis result for SHA-256 c19109e8a13926d6…

MALICIOUS

PDF

67.5 KB Created: 2021-02-19 09:39:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 05ef48aa40c783f9fda5f6cfd215d667 SHA-1: fe3ea85412794c2e13d22d479bd778a06a8b6dbc SHA-256: c19109e8a13926d69c1239706c2c285be9622a93f50030ef8ec7c50bb776c319
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=delorme+inreach+se+manual PDF link annotation
    • https://cdn.sqhk.co/waxigapo/gjdgige/88681254990.pdfIn PDF document text
    • http://teachersaid.fun/nora_roberts_list_of_books_2020i6zje.pdfIn PDF document text
    • http://kkkirrreeee.space/401377816895x9ry.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366351/normal_5fed9e78a300f.pdfIn PDF document text
    • http://arm-watch1.club/tepijisenexokubutoxoruf3cwp9.pdfIn PDF document text
    • http://doorstepcomputers.com/star_wars_darth_plagueis_audiobook_freer9o9i.pdfIn PDF document text
    • http://idealica-tufficiale.website/92251959142pkn76.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488604/normal_5ff80545abccf.pdfIn PDF document text
    • http://tixshopclub.space/piriformis_function_in_hip_flexionaa18v.pdfIn PDF document text
    • https://cdn.sqhk.co/wuwovodegi/hVxjiJT/elements_financial_mortgage_rates.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476936/normal_6009eaa78976f.pdfIn PDF document text
    • http://timelessdecorum.com/kagidogurudcrd.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/mudurixo/bookmarking_a_in_nuance.pdfIn PDF document text
    • https://s3.amazonaws.com/pujirageg/rajumazukigik.pdfIn PDF document text
    • https://s3.amazonaws.com/zodawanuror/antarctic_ice_sheet_growing_2015.pdfIn PDF document text
    • https://s3.amazonaws.com/tokatefozude/swiftkey_settings_android.pdfIn PDF document text
    • https://s3.amazonaws.com/jodabiladezot/biogenic_amines_formation.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_off0000cb33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB33 5036 bytes
SHA-256: f4db00e124082669930f9158bc7a43ace1a783307246a18aba4ef2556aadd33c
font_01_sfnt_off0000dc28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC28 10384 bytes
SHA-256: 594dea7d7b89dc51e6db0d215d47cdbb165ce1051433d1bed36227e2ce9696e4