Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e74e10cbf8909cf…

MALICIOUS

PDF

67.9 KB Created: 2021-02-11 18:49:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 0bee163df1dbbf16e410ae04da5d662a SHA-1: 7f0b60a19b635484c669c3b229595a4cb2997d93 SHA-256: 3e74e10cbf8909cff6ddee0cc1e8076a4b7459f99c636a6b1c517f0ca1df209b
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://baarspo.ru/wix?keyword=jam+and+toast+dallas PDF link annotation
    • https://cdn.sqhk.co/dozumapufa/bO8f6id/sonawegalevudasuligoloji.pdfIn PDF document text
    • http://bottlechainworld.com/459782108828rpt7.pdfIn PDF document text
    • https://cdn.sqhk.co/nipigagavadu/1jdhemI/sowaxizufojud.pdfIn PDF document text
    • https://rojirewika.weebly.com/uploads/1/3/2/7/132710632/3216048.pdfIn PDF document text
    • https://cdn.sqhk.co/gegenosuzun/LPDRhjp/offline_pc_games_free_download_for_windows_7.pdfIn PDF document text
    • https://cdn.sqhk.co/gederanew/gyid3ge/48939698341.pdfIn PDF document text
    • https://cdn.sqhk.co/pafevola/mgcvieR/33286398944.pdfIn PDF document text
    • https://riwurarelix.weebly.com/uploads/1/3/4/4/134484082/2816d546d2e.pdfIn PDF document text
    • https://cdn.sqhk.co/fumamimed/jihf8jE/check_my_airtel_recharge_history.pdfIn PDF document text
    • https://cdn.sqhk.co/gabixeme/dhajfhe/70202303946.pdfIn PDF document text
    • https://cdn.sqhk.co/folamudoj/jaihic2/fear_used_to_control_society.pdfIn PDF document text
    • https://cdn.sqhk.co/mobirewin/r6jhijb/21236610488.pdfIn PDF document text
    • http://pc-remont.website/vabobigavizonefict0nw.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/juliziwojatige/vubanubivasa.pdfIn PDF document text
    • https://s3.amazonaws.com/xeponodij/ohs_induction_training_plan_template.pdfIn PDF document text
    • https://s3.amazonaws.com/wewiro/lodotuvitivalixilalakodi.pdfIn PDF document text
    • https://s3.amazonaws.com/tutasujal/20176594489.pdfIn PDF document text
    • https://s3.amazonaws.com/fivebo/flight_movie_free.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_off0000cee5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEE5 4864 bytes
SHA-256: b740a90280ab5b1e9e6e580a7964549c56e68c33f194fc156aced9f1ebc8206b
font_01_sfnt_off0000df5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF5A 10412 bytes
SHA-256: f9cfe5e0b1d72606ae1603ebcd0b49b5903706bf3c8a0c7f6873e742868930ae

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