Malicious PDF — malware analysis report

Static analysis result for SHA-256 34769d6b707abd30…

MALICIOUS

PDF

74.7 KB Created: 2021-02-13 16:18:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 9a5dbd6831f46ffb0a0f7b29f392cf0c SHA-1: 80d7021e1f2bb28a2b952324ce10883c99c31f9d SHA-256: 34769d6b707abd3030ae4facf782c669dec04987cb0e677219edacb24dcb20af
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • 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://jacksth.ru/123?utm_term=a+star+is+born+netflix+amazon+prime PDF link annotation
    • http://converstarget.ru/galaxy_wars_classic_space_shooter_apk_uptodownbja8c.pdfIn PDF document text
    • https://cdn.sqhk.co/wareberefiz/2EihgjG/96915730588.pdfIn PDF document text
    • https://cdn.sqhk.co/tisufupujeli/gciggcv/simon_the_sorcerer_3d_pl_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482188/normal_600d529158b21.pdfIn PDF document text
    • https://kuvinobugo.weebly.com/uploads/1/3/1/3/131383931/e2448.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450632/normal_5feb862abd577.pdfIn PDF document text
    • https://cdn.sqhk.co/tejosepu/fjftwia/new_york_city_bike_tour_2020.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365586/normal_600f276334072.pdfIn PDF document text
    • https://cdn.sqhk.co/mepapogivoma/d4n3Khf/46844060872.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485927/normal_5fd91336bb7dc.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/xijuxosisomuna/93536370588.pdfIn PDF document text
    • https://s3.amazonaws.com/mejobu/batman_beyond_batarang_template.pdfIn PDF document text
    • https://s3.amazonaws.com/megodipewukitoj/flight_simulator_3d_free_mod_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/jefobexapulow/22002428384.pdfIn PDF document text
    • https://s3.amazonaws.com/dupula/total_capital_employed_in_balance_sheet.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_off0000e75e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE75E 5296 bytes
SHA-256: ec742e7ae101fce27fea73616bc1549592d16858365f473bc8a147dddce6808c
font_01_sfnt_off0000f954.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF954 10760 bytes
SHA-256: 334562e153b45e47b733548bdafbd30bad4d8b130417a807fd691ca3dfc26278