Malicious PDF — malware analysis report

Static analysis result for SHA-256 03678e6a9077dbe0…

MALICIOUS

PDF

69.0 KB Created: 2021-02-12 03:23:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: bb30aa1b1fe0a9243cb9c7458a4ff17e SHA-1: da8f2754248202738c623887eccb5c12599fd10f SHA-256: 03678e6a9077dbe0f9ef561c02f8a5b5909ac66198f1cc9b88349afc57f544f1
196 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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://jottigo.ru/wix?keyword=cockapoo+puppies+for+sale+chicago+il PDF link annotation
    • https://cdn.sqhk.co/nalogigoke/ibiidjg/26512377771.pdfIn PDF document text
    • https://cdn.sqhk.co/vumorumuvogi/jeA7gjp/piwozodivenajepanade.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392867/normal_6016e4320ac60.pdfIn PDF document text
    • https://cdn.sqhk.co/busibelifiv/5gejiih/zerekolop.pdfIn PDF document text
    • https://sajoviginuxux.weebly.com/uploads/1/3/2/7/132712139/tuvazabuwuwometax.pdfIn PDF document text
    • https://cdn.sqhk.co/zofizitene/Gjbekll/highway_traffic_car_game.pdfIn PDF document text
    • https://cdn.sqhk.co/girewobo/geM4jeg/real_car_driving_games_download.pdfIn PDF document text
    • https://cdn.sqhk.co/xizaxulubezu/bhc2gdZ/zombie_daylight_game.pdfIn PDF document text
    • https://cdn.sqhk.co/kinemefuwa/edPggib/drift_x_burn_download.pdfIn PDF document text
    • https://cdn.sqhk.co/moradivovep/HggdPGK/15927604193.pdfIn PDF document text
    • http://copyrightshelpscenters.com/75267322592rde5p.pdfIn PDF document text
    • https://cdn.sqhk.co/didatife/KohhQij/26101346733.pdfIn PDF document text
    • http://sportplays.ru/baby_adopter_appgugss.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412582/normal_600cb6a55dfa4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d0e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0E5 5244 bytes
SHA-256: d9805e0903431c0a71a7f181868fc9ea11f2e2b72f10b59044b6e5528f12afd9
font_01_sfnt_off0000e2bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2BC 10660 bytes
SHA-256: e58023d37d747f330ad5a9c639d83e762ae8812ee3b0cfc56c51bfcfdc60da53