Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb872e0453f0db2e…

MALICIOUS

PDF

73.2 KB Created: 2021-01-21 15:04:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 240a063058e10b4c0a83196edd3c2ea8 SHA-1: 6fefc068a38ea46c9a57fd39e6132b6e29e146aa SHA-256: eb872e0453f0db2e8adef383435fec1e536c6ae04c79db08a0993b4b384250d4
156 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://leonvi.ru/123?utm_term=ashley+furniture+dresser+with+marble+top PDF link annotation
    • https://cdn.sqhk.co/purovufizu/RP81coX/lazulegedokefufu.pdfIn PDF document text
    • https://cdn.sqhk.co/tedogegez/fk8hic0/sega_vintage_collection_streets_of_rage_xbox_one.pdfIn PDF document text
    • https://cdn.sqhk.co/lusajiki/ieWhdFc/knights_inn_san_ysidro_telefono.pdfIn PDF document text
    • https://cdn.sqhk.co/zogobadakedu/cjft2qP/pezimazox.pdfIn PDF document text
    • https://cdn.sqhk.co/wazafepel/2QqdQJi/51217304908.pdfIn PDF document text
    • https://cdn.sqhk.co/gorokipo/ihcjejg/screen_lock_time_samsung_galaxy.pdfIn PDF document text
    • https://cdn.sqhk.co/pemiduwegam/etrgjYS/59834371893.pdfIn PDF document text
    • https://cdn.sqhk.co/moxelutedoje/UIhdgiV/63865529477.pdfIn PDF document text
    • https://cdn.sqhk.co/zatufora/chgPKhj/89029923160.pdfIn PDF document text
    • https://cdn.sqhk.co/supesuvepo/fiamIrH/80954050159.pdfIn PDF document text
    • https://cdn.sqhk.co/reretukida/DmgePhj/69519925686.pdfIn PDF document text
    • https://cdn.sqhk.co/widagawinud/icDgcgi/60333479946.pdfIn PDF document text
    • https://cdn.sqhk.co/disumuneriva/gfjijgk/sky_force_2014_card_24.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477373/normal_5fc15858ec5a8.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/bulozor/92681714899.pdfIn PDF document text
    • https://s3.amazonaws.com/liwafo/95506806017.pdfIn PDF document text
    • https://s3.amazonaws.com/zunaduxa/fanitowazudutelus.pdfIn PDF document text
    • https://s3.amazonaws.com/zepifudoxapo/android_studio_adb_windows_10.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_off0000df06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF06 5604 bytes
SHA-256: 53dd1378599d7d01b18c3f6d25efeb0a3f37a8fa29d38c79a2f555df1b1644b6
font_01_sfnt_off0000f1fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1FD 11224 bytes
SHA-256: b1cff27008bdafe57731b571f235e2765d666cfebed8526c0870747d17634d30