Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae6f0c00103b9431…

MALICIOUS

PDF

35.7 KB Created: 2020-11-02 18:03:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: b6c20ee23dbad184d0c22c58d57b296f SHA-1: 4d81422278322db1cebb552e28b520b97bf26d89 SHA-256: ae6f0c00103b94310bbb666c3d4bb1501e7055e22592429ff2e2ce3f492360e0
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://ggtraff.ru/aws?keyword=idle+breakout+hacked+infinite+gold In PDF document text
    • https://cdn-cms.f-static.net/uploads/4367642/normal_5f888f2030158.pdfIn PDF document text
    • https://fijudemi.weebly.com/uploads/1/3/4/4/134400988/gilufowitifunarik.pdfIn PDF document text
    • https://http://http://www.crazygames.../idle-breakoutIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/tamobalasu/jafam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/7416/9248/files/kudozebolijamanonov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/7613/4082/files/com_android_vending_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/6901/1621/files/wokum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/4587/8435/files/dunazudaj.pdfIn PDF document text
    • https://s3.amazonaws.com/votawawo/39682146785.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/7628/1032/files/upsc_prelims_2020_gs_paper_2.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files2/kagox.pdfIn PDF document text
    • https://s3.amazonaws.com/samopakamefap/60163949582.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5499/7402/files/come_craccare_netflix_sul_telefono_android.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_off00004ce1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CE1 5248 bytes
SHA-256: bfe94557be39014d18626dd0eacaa1e7e942b336e3010625ca7db49f60c9dfb3
font_01_sfnt_off00005eb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EB7 10384 bytes
SHA-256: ff2e9fb5051db9dd6894f9c2ff326451f2f5d386c01a452edb769a95d74b8b03