Malicious PDF — malware analysis report

Static analysis result for SHA-256 2305cca20e7216cf…

MALICIOUS

PDF

67.9 KB Created: 2021-01-29 10:51:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 62e4cffdb752d29fab8a291a5d574e5d SHA-1: c624ae508642a637335b879cdf5f960a63734307 SHA-256: 2305cca20e7216cfa3ee45f73f24ad0665b400a73c1ba1bc3e7dbe44fa579d65
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://trafftec.ru/wb?keyword=download%20game%20trap%20adventure%201 PDF link annotation
    • http://creditstar-kabinet.com/momub45a9s.pdfIn PDF document text
    • http://epaytds.xyz/56733842716x27bw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402503/normal_5fda3668a539a.pdfIn PDF document text
    • http://thedefenseforge.com/kung_fu_panda_3_where_to_watch74mxe.pdfIn PDF document text
    • http://kurs1.xyz/28896463307c3sfy.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4497658/normal_5fcaa1d2f34ff.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408343/normal_5fd807191426b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4498702/normal_5fd806b2e8026.pdfIn PDF document text
    • http://ueuniti.xyz/diary_with_lock_fingerprint_lock_real12cs8.pdfIn PDF document text
    • http://klyshsheff.xyz/basketball_free_throw_line_stencil5nu9d.pdfIn PDF document text
    • http://glossywp.online/sc_caste_list_in_telangana5upoj.pdfIn PDF document text
    • http://sallles.ru/mawiwavexipiwejopupolewtjydq.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/tigewibejageju/green_day_songs.pdfIn PDF document text
    • http://nidudovuj.epizy.com/the_international_maritime_language_programme_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/xafaxotaful/72430166870.pdfIn PDF document text
    • https://s3.amazonaws.com/napisakaluja/sagabepakijog.pdfIn PDF document text
    • https://s3.amazonaws.com/gujutavevive/eternity_and_a_day_piano_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwawibu/48186640974.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_off0000cd45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD45 5304 bytes
SHA-256: 434979f5dedd862bf92921ea7d93a79ce11fbee7eead975a54b48695b593ad2a
font_01_sfnt_off0000df5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF5E 10352 bytes
SHA-256: 4832d8048789737d4926c13b51cf56cd8f025d20ddb41e9e79bf387be12883c3