Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2fce14a9d44dbfa…

MALICIOUS

PDF

63.9 KB Created: 2020-11-08 21:01:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: 8739d9ae893a5533f2803cbc131fc7cd SHA-1: 327863a84e80ce1b3880afccf9cb70d1fce27066 SHA-256: f2fce14a9d44dbfabd4a2767aa1de9703a0461d1a8e10e3e2bc52a863f0556bb
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ggtraff.ru/aws?keyword=y8+games+pac+xon In PDF document text
    • https://poriveba.weebly.com/uploads/1/3/4/3/134316211/feromapuvat.pdfIn PDF document text
    • https://xopigitit.weebly.com/uploads/1/3/4/3/134339451/a8aaf73.pdfIn PDF document text
    • https://topizamo.weebly.com/uploads/1/3/4/4/134435864/gubugasilukapolagok.pdfIn PDF document text
    • https://jizufozerujit.weebly.com/uploads/1/3/4/3/134343201/8194464.pdfIn PDF document text
    • https://lujalidulosegex.weebly.com/uploads/1/3/4/3/134369289/ddb59ebf.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/henghuili-files2/ielts_listening_actual_test_vol_3.pdfIn PDF document text
    • https://s3.amazonaws.com/badodemebo/dont_whack_your_boss_with_super_powers_y8.pdfIn PDF document text
    • https://s3.amazonaws.com/tapexiw/miwixabofokosodovonok.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwisi/scrabble_two_letter_words.pdfIn PDF document text
    • https://s3.amazonaws.com/zazelujeju/lasotubitavifado.pdfIn PDF document text
    • https://s3.amazonaws.com/gosete/32890080928.pdfIn PDF document text
    • https://s3.amazonaws.com/gidibesuxi/consejo_general_notariado_en_ingles.pdfIn PDF document text
    • https://s3.amazonaws.com/dazifozixawus/lead_me_guide_me_along_the_way_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/sikuva/38486164131.pdfIn PDF document text
    • https://s3.amazonaws.com/tofizo/complex_numbers_class_11_ncert_solutions.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off0000bb15.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xBB15 30420 bytes
SHA-256: d108fc92493ddb8a3dcc508632716dfbfb5f9672dc7a8d625a1e51e3962ed8ec
font_00_sfnt_off000087c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87C4 5348 bytes
SHA-256: fd26459b33a3156558e7f0db1cb84f4600ac1c1a09742b8699957b944dc79146
font_01_sfnt_off000099f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99F8 9684 bytes
SHA-256: f3c93c23369050b74316f8e71d32cf47fb4aabbd66fd45f37ae064d4e1a7be6a

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