Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fe97068e3e7e50d…

MALICIOUS

PDF

81.8 KB Created: 2021-02-24 15:21:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 159188c334feb280e3732a928492e2a6 SHA-1: 775186ab435adfd62ef3d9c34a05c5f4cc3b2f43 SHA-256: 5fe97068e3e7e50d5bdc58a8b4c6eada5ebb3efc3e2d7af01d7ff0e8981ebd67
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://maypoin.ru/wb?keyword=the%20picatrix%20pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4446152/normal_6000357a87a2b.pdfIn PDF document text
    • https://cdn.sqhk.co/tezofugowura/E028igd/ludo_game_with_voice_chat_android.pdfIn PDF document text
    • https://cdn.sqhk.co/sobexofap/j4hgxgc/63698286748.pdfIn PDF document text
    • https://vojituletakez.weebly.com/uploads/1/3/0/8/130874409/4072070.pdfIn PDF document text
    • https://cdn.sqhk.co/walekikem/oPVgigd/kidariteratedorokiwarizan.pdfIn PDF document text
    • https://cdn.sqhk.co/gederanew/lLYjd7F/ballpoint_pen_ink_replacement.pdfIn PDF document text
    • https://cdn.sqhk.co/pijavagoke/IJdjgic/super_tank_pro.pdfIn PDF document text
    • http://klyshsheff.xyz/avakin_life_coin_hack_no_verificationc1qft.pdfIn PDF document text
    • https://cdn.sqhk.co/nozedimasav/1ghfB51/sad_wallpaper_for_iphone_6.pdfIn PDF document text
    • http://alcozerox.com/161081997583gosf.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/niporofez/punjabi_wedding_couple_pic.pdfIn PDF document text
    • https://s3.amazonaws.com/ninasivol/professional_video_recording_app_android.pdfIn PDF document text
    • https://s3.amazonaws.com/xijilesuzuxo/apc_temperature_humidity_sensor_datasheet.pdfIn PDF document text
    • https://s3.amazonaws.com/zufaxepixiguxax/jovizasobemobazamupexove.pdfIn PDF document text
    • https://s3.amazonaws.com/zarevizebi/laser_cut_metal_sheets_uk.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_off0001065e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1065E 5052 bytes
SHA-256: 3fe4b67e273f4c6858577e8dd8fff2f4eb48036a4ecf5c43f4bc580a0ed01f59
font_01_sfnt_off0001178b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1178B 10360 bytes
SHA-256: 2cb1ae6b0d61f704260f5594f8e2930ec393b9850ac32735fb46d11857d656d7