Malicious PDF — malware analysis report

Static analysis result for SHA-256 59777cab827d1865…

MALICIOUS

PDF

41.6 KB Created: 2020-11-07 23:27:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: d9d5b660fc8765af4c4f9b2b24b18365 SHA-1: f66445dd0c0c0adf8d68b662a16f89c4b3e06999 SHA-256: 59777cab827d186523606910d3da007a1b47604fc5df3701213063687b895830
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://trafftec.ru/123?keyword=the+survivor+vince+flynn+epub PDF link annotation
    • https://sonadenazutimiw.weebly.com/uploads/1/3/4/6/134654654/a42f4ada60b123.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402478/normal_5f92165a831eb.pdfIn PDF document text
    • https://gudojovevisepu.weebly.com/uploads/1/3/4/3/134314990/wisebokobajolu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388426/normal_5f8f333962dc2.pdfIn PDF document text
    • https://vobudofokivelux.weebly.com/uploads/1/3/4/5/134599261/4589d.pdfIn PDF document text
    • https://biwewijusegi.weebly.com/uploads/1/3/4/5/134586848/luzalumimesexo-maxojisutoze-setokuwakat.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369317/normal_5f9f8a7223ac4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365602/normal_5f8e82d429dc9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366401/normal_5fa53a4f8b9f8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412391/normal_5f9a138cda83d.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/ganubatebedoxez/calphalon_classic_stainless_steel_1.5_qt._covered_saucepan.pdfIn PDF document text
    • https://s3.amazonaws.com/vapelurowar/thesis_statement_about_social_media.pdfIn PDF document text
    • https://s3.amazonaws.com/kigavanus/naked_and_afraid_necklace.pdfIn PDF document text
    • https://s3.amazonaws.com/libowebujakux/guess_the_emoji_heart_club_beer_city.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_off0000648c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x648C 5144 bytes
SHA-256: e40db211c45b6334d20ff5df795b6f73397e58985e21e35b8f3a414837b785cf
font_01_sfnt_off00007615.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7615 10428 bytes
SHA-256: 06d383c49a07e343edf951949a4caf8cd19df2109253d195f1b7d184db28b220