Malicious PDF — malware analysis report

Static analysis result for SHA-256 669eee4ef547634a…

MALICIOUS

PDF

70.8 KB Created: 2021-02-08 22:18:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: ed6266cecb9c4ca2216e7f1ae9d91459 SHA-1: aa4b34cb42410dab34dd2050947eda9a1d9e9062 SHA-256: 669eee4ef547634af275a84f235c0bd00dd915061a351d6566e77bd337388651
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://leonvi.ru/wb?keyword=bearded%20dragon%20full%20care%20guide PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4447640/normal_60079e239bba2.pdfIn PDF document text
    • https://cdn.sqhk.co/tatomaxeriri/Dieuhhx/h._e._e._consult_s._r._o.pdfIn PDF document text
    • https://cdn.sqhk.co/wibepudib/ivEeijO/weak_matrix_organizational_structure_examples.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456121/normal_5fc966a6e935c.pdfIn PDF document text
    • https://sanituwinera.weebly.com/uploads/1/3/1/3/131379206/7ee4e.pdfIn PDF document text
    • https://jokilexagazoxo.weebly.com/uploads/1/3/4/6/134602179/db981b4f83.pdfIn PDF document text
    • http://lalashoppen.online/wexikumutokaralixprut.pdfIn PDF document text
    • http://pumba-timon.space/best_website_to_windows_gamesht6qw.pdfIn PDF document text
    • https://cdn.sqhk.co/ragojagef/ih1UAE3/aliens_drive_me_crazy_game_hacker.pdfIn PDF document text
    • https://fewegako.weebly.com/uploads/1/3/1/4/131453302/tokinawinotagapugasi.pdfIn PDF document text
    • https://tapukinag.weebly.com/uploads/1/3/1/6/131606864/870405.pdfIn PDF document text
    • http://cupe1.ru/evangelio_apcrifo_de_juanjro9f.pdfIn PDF document text
    • http://italiahot.fun/blick_ch_sport_formel_1lsssk.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/wovugi/76375356360.pdfIn PDF document text
    • https://s3.amazonaws.com/purixifusipelid/auto_repair_shop_software_free.pdfIn PDF document text
    • https://s3.amazonaws.com/tokatefozude/arma_2_dayz_epoch_building_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/wozoxub/binomial_identities.pdfIn PDF document text
    • https://s3.amazonaws.com/bawalidamovidud/19703328319.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_off0000dab3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAB3 5060 bytes
SHA-256: a49cdf679a52cd5cc163cffc237864b5981e99f8ba8586a6993e8ee6868de14e
font_01_sfnt_off0000ebfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBFE 10084 bytes
SHA-256: ada770b9573b769d312271bcf729598077b6377007e7ca2b66d0609ae7a8ca50