Malicious PDF — malware analysis report

Static analysis result for SHA-256 b249f5e9f9f97fde…

MALICIOUS

PDF

65.9 KB Created: 2021-02-09 00:52:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 329874e8247ba0af7a23ca67ff4e61bb SHA-1: a8c967a98d058acceada2ea632d7b38312e93bbc SHA-256: b249f5e9f9f97fde0fa683055a0bd14a54cc8385e50ebc499115b4dc4abb7ee4
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://maypoin.ru/wb?keyword=dubai%20one%20news%20reporters PDF link annotation
    • http://show-visitor.xyz/steam_link_pc_to_macxpusu.pdfIn PDF document text
    • http://epaytds.xyz/68033153211hbg2s.pdfIn PDF document text
    • https://pipefedib.weebly.com/uploads/1/3/1/3/131383483/2777329.pdfIn PDF document text
    • http://opit.space/zombie_offroad_safari_mod_apk_unlimited_money7v1m9.pdfIn PDF document text
    • http://wegisinebirixe.iblogger.org/71325303044.pdfIn PDF document text
    • http://italia-doc.space/online_racing_games_for_pc_3d3lh30.pdfIn PDF document text
    • http://ritual-venki.online/9180263993ckk2f.pdfIn PDF document text
    • http://yoptan.space/real_moto_rider_racing_hack_apkkyb9o.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rogidisili.rf.gd/sogepaluxolixiwasufa.pdfIn PDF document text
    • https://s3.amazonaws.com/sizabo/ff14_fashion_report_week_97.pdfIn PDF document text
    • https://s3.amazonaws.com/mogedozara/66030750755.pdfIn PDF document text
    • https://s3.amazonaws.com/wupagivoz/bahubali_2_movie_free_songs.pdfIn PDF document text
    • http://xamipekuxedatif.rf.gd/cancer_de_colon_gpc.pdfIn PDF document text
    • https://s3.amazonaws.com/dewazewokib/67926520469.pdfIn PDF document text
    • https://s3.amazonaws.com/fedufiporara/vukeduxagenebakelotepi.pdfIn PDF document text
    • https://s3.amazonaws.com/zunewidimem/pofugigaxane.pdfIn PDF document text
    • https://s3.amazonaws.com/jupevuxirapi/kewuxubobixepugi.pdfIn PDF document text
    • https://s3.amazonaws.com/jitimesolagun/nejosobufirix.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_off0000c8a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8A6 5012 bytes
SHA-256: 149fd0b7f932efa3b7db3ba34241316c981a954d97e255a9a231e26f202a8153
font_01_sfnt_off0000d9d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9D3 9188 bytes
SHA-256: c2c1c7e5cd81b665a0b13886405127e73c40a3863a3a028d0e5ea78ded0260c8