Malicious PDF — malware analysis report

Static analysis result for SHA-256 34d46945f58f4411…

MALICIOUS

PDF

47.0 KB Created: 2020-11-09 13:15:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-11
MD5: 4e00ecd87104aa9f51efbbb32fe6122a SHA-1: 0786bfcd6cf0a0935fbb6300222f94105ef58183 SHA-256: 34d46945f58f4411eb5e083497e93e69cf071fa9c395af895097170e532411b2
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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://trafficel.ru/aws?keyword=barbarians+at+the+gate+book+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4461484/normal_5fa28d356c714.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369904/normal_5f91480f86bdd.pdfIn PDF document text
    • https://vuzevarezevarot.weebly.com/uploads/1/3/0/7/130740461/37288358.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375357/normal_5f8cc6dc3a850.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405181/normal_5f9d0511cb40c.pdfIn PDF document text
    • https://xegiwisupanax.weebly.com/uploads/1/3/4/3/134367095/2181213.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://s3.amazonaws.com/zirojopemup/hiperplasia_benigna_de_prostata_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/columbus_ohio_pride_week_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/tadovu/cd4069be_datasheet.pdfIn PDF document text
    • https://s3.amazonaws.com/soxukowotomaj/beginnings_and_beyond_10th_edition_book_free.pdfIn PDF document text
    • https://s3.amazonaws.com/lefemijip/activate_hbo_now_on_ps4.pdfIn PDF document text
    • https://s3.amazonaws.com/napoledunadigo/hal_leonard_guitar_method_book_2.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006245.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6245 5312 bytes
SHA-256: 86adbd5b14215c45d45f6ce2463c2dc4ae377a66997e162a42a4fb3fbb4c1ee1
font_01_sfnt_off00007439.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7439 1828 bytes
SHA-256: aec96eb2e5096979673cbb698b042b326be0f27a71bb06aa334c0f4805054e48
font_02_sfnt_off00007d32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D32 10436 bytes
SHA-256: bbb5aa2cfa7fbda86af03ae48e8cc39eae81cce0b91d9215d6fdc57c0bce9ece
font_03_sfnt_off0000a10a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA10A 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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