Malicious PDF — malware analysis report

Static analysis result for SHA-256 e97215cba80a7765…

MALICIOUS

PDF

45.7 KB Created: 2020-10-29 22:10:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-11
MD5: 0906e7c2982c4eb6671fa3b0fa603a92 SHA-1: b857b58e48e3d069013d3e1c1c1835d238373b8b SHA-256: e97215cba80a7765c69b1f59824bcdb895686c685c19038eab6852cdc5a6dff0
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://ttraff.com/123?keyword=how+long+do+stubble+turnips+take+to+grow In PDF document text
    • https://vigaziwow.weebly.com/uploads/1/3/4/3/134322068/9903cbc6.pdfIn PDF document text
    • https://jesasifewom.weebly.com/uploads/1/3/1/4/131453969/fopiniz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366042/normal_5f8ab8c7cbc23.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372982/normal_5f8e2cdd7557d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380384/normal_5f94ec171be33.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366647/normal_5f87517d698ab.pdfIn PDF document text
    • https://tizukusijevawus.weebly.com/uploads/1/3/4/4/134454617/365dbb1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377400/normal_5f98bf9c8a144.pdfIn PDF document text
    • https://lopuzidijunusi.weebly.com/uploads/1/3/4/3/134378181/nisab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382420/normal_5f954276ea813.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://cdn.shopify.com/s/files/1/0483/9191/3632/files/30075649307.pdfIn PDF document text
    • https://s3.amazonaws.com/fovezewi/second_conditional_exercises_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/5390/7605/files/xekuputamumidub.pdfIn PDF document text
    • https://s3.amazonaws.com/xozeb/puwarekozinad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/0101/9040/files/93622866977.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4621/3544/files/jogukabexuwaworuk.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_off0000676e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x676E 5264 bytes
SHA-256: 3fa6e6c67a8568a03543e319ac9101bd0dfa70986bf8ede80329fe0d3c7d7bc7
font_01_sfnt_off00007969.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7969 10056 bytes
SHA-256: 5b28542409dc28dab2827d2f3fd89dcfd5ce29d6a72b09637efacc30e16f5b76
font_02_sfnt_off00009ba8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9BA8 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71