Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe424142433d66b2…

MALICIOUS

PDF

44.0 KB Created: 2020-11-08 14:28:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: f80487467d5954de9a6e5d0a18d17cc0 SHA-1: cdf030a8717cc75b6b30b07d1e63153c9c763499 SHA-256: fe424142433d66b2d7e5b9f3125fe7a2a6b91945e909b44ac11cf8d404fb9f44
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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://traffking.ru/123?keyword=hamlet+soliloquy+act+1+scene+2 In PDF document text
    • https://valetakomo.weebly.com/uploads/1/3/4/0/134012509/kenowobu-wununef.pdfIn PDF document text
    • https://wosezobar.weebly.com/uploads/1/3/1/8/131856012/lopajopusi_kejojovip_kokuvu_futorotijim.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/d89870ed-8b6d-470a-9456-88de3f5507a2/modibuzavawijedik.pdfIn PDF document text
    • https://zegimok.files.wordpress.com/2020/11/kikupabadekutipinukel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95014fa4-8871-4d9a-824d-b191b4af291e/9039627537.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80fa8136-4bc2-4760-9c82-ac371d09e6fb/words_that_begin_with_hook.pdfIn PDF document text
    • https://baginalikut.files.wordpress.com/2020/11/biocatalysts_and_enzyme_technology.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3235795e-7197-4af2-bda9-92d0db195e9e/97802219559.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4db1c963-3a85-4c12-9ffb-7430e05931a8/kezebonom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f4d874b2-2ab9-4618-9b5e-53336c426b8e/20615371674.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5fa194ea-f417-4eef-b6de-991305480791/monster_hunter_world_trainer_168030.pdfIn PDF document text
    • https://liwotorur.files.wordpress.com/2020/11/nememig.pdfIn PDF document text
    • https://lodoxepal.files.wordpress.com/2020/11/reremuradivuvevedivogobid.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000628f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x628F 5104 bytes
SHA-256: 02c9587a71341e1d467bb14af14c15eb0ca7774c0163d208bf629dcecf139a10
font_01_sfnt_off000073ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73EF 9932 bytes
SHA-256: f40750edae544d2491d71f1e3c3a30bf9ed7b607d51b82368edb95172d3a1db6
font_02_sfnt_off0000957a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x957A 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

Open this report in the interactive analyzer, or submit your own file for analysis.