Malicious PDF — malware analysis report

Static analysis result for SHA-256 017422cde0728aa6…

MALICIOUS

PDF

45.1 KB Created: 2020-10-25 08:58:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: d6e02de3cb5aaf6cc410eefc9a2ef843 SHA-1: 0ea75f38b02e4e262f80ed32e55a92c2b43b5695 SHA-256: 017422cde0728aa6fa5672391801ee31f7d9162599af522fc127f42aa5e47e39
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.link/aws?keyword=asian+paints+texture+catalogue+pdf+2019 In PDF document text
    • https://cdn-cms.f-static.net/uploads/4367302/normal_5f8808d8b7287.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369313/normal_5f9516f2ef646.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378160/normal_5f93de35c78e3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368788/normal_5f8d9ca1c4331.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368471/normal_5f8903d89a5f8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374207/normal_5f94cac859186.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376371/normal_5f8e027801109.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366632/normal_5f94a55eb19be.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366665/normal_5f873f1b9763c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368751/normal_5f87cd192cd9b.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000706d.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000706d.bin)
    • https://s3.amazonaws.com/sinadi/data_clustering_theory_algorithms_and_applications.pdfIn PDF document text
    • https://s3.amazonaws.com/jupevuxirapi/sterculia_appendiculata.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/zoweladazofodonotovu.pdfIn PDF document text
    • https://s3.amazonaws.com/fejififimaketo/xexalolalupikozem.pdfIn PDF document text
    • https://s3.amazonaws.com/leguvefu/apotheosis_novel_download.pdfIn PDF document text
    • https://s3.amazonaws.com/zetare/jurukinakajojuwivides.pdfIn PDF document text
    • https://s3.amazonaws.com/xuzed/fapagokupodonu.pdfIn PDF document text
    • https://s3.amazonaws.com/takateg/50994119316.pdfIn PDF document text
    • https://s3.amazonaws.com/somamere/kigogebuko.pdfIn PDF document text
    • https://s3.amazonaws.com/petikamov/les_accents_en_franais.pdfIn PDF document text
    • https://s3.amazonaws.com/wujodibu/34239320073.pdfIn PDF document text
    • https://s3.amazonaws.com/damerirazib/11488734350.pdfIn PDF document text
    • https://s3.amazonaws.com/zesotat/auditing_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/0878/9150/files/xupapuvopefinines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7056/3239/files/delonghi_nespresso_lattissima_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2464/5272/files/all_mp3_song_download_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0476/5794/3206/files/20808835568.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9238/5700/files/cable_one_biloxi_tv_guide.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 extracted file (font_00_sfnt_off0000706d.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000706d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x706D 5864 bytes
SHA-256: b6104bc67a40c75ae3f93048a7077349142974cdbef40d0ad93fed364a01da43
font_01_sfnt_off00008476.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8476 9964 bytes
SHA-256: f3c0b7782c11f51d1bf3dda1513b312d4a7217e250f3603879b3aa2132c031c2