Malicious PDF — malware analysis report

Static analysis result for SHA-256 f99a0f9de06309e3…

MALICIOUS

PDF

41.8 KB Created: 2020-10-17 23:46:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-13
MD5: 6f9e7e49ba07553642a04035a3d09e95 SHA-1: 29346f8776d4a14bcca72775f37942a1b7e3cd56 SHA-256: f99a0f9de06309e31deb630ea55e13c147d3b19fb4527e5cee23a24d7329a65e
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://gettraff.ru/wb?keyword=divinity%20original%20sin%20anvil%20of%20creat In PDF document text
    • https://pojutawetuje.weebly.com/uploads/1/3/1/3/131382470/4937006.pdfIn PDF document text
    • https://nitiruminaxodax.weebly.com/uploads/1/3/0/7/130738633/nizikup_pedijekes_warozibeb.pdfIn PDF document text
    • https://sovopubi.weebly.com/uploads/1/3/0/7/130775052/niroselubesibaw.pdfIn PDF document text
    • https://lodirunesu.weebly.com/uploads/1/3/0/8/130874391/9329271.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ef733e3-2336-446e-8e69-ff93e9b1d50e/pufipol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/533742e6-a92b-4dce-8d2c-dff7b61cdf4c/13131830318.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0306d6c4-2dc7-43ef-b6c9-fa256fdabb22/buzadolikuxuromiraluj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a341b46-0692-41ef-abb9-b0838c4e0099/jevuxonidife.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8dd47c71-fd5a-493a-9606-b340adedad7e/44655610110.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/386ef57a-b06a-4c27-8995-ec7a2ffa2c85/64176842920.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9721503f-3c4d-4b3e-b74a-7f28c62945e4/23455793058.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/629f35fc-690a-46c1-b463-96684df5f4e2/reys_survival_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ce88aa3c-cd52-46c5-beab-0d062614b052/zemerofefo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8783346c-e8ef-4952-9ab2-786d0c27520f/27561519322.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/728fb391-1f50-4a38-b650-a9d8590fa289/78683358397.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa8612f5-30c0-43a3-9a22-a174835efeb7/rajosojiluwixafefos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/684d4ea4-38e1-4b1c-a9c5-85110ec04381/vovalobobar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dddb1bd1-7dff-4567-b600-abf36413ad4e/87375419871.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/99d173e3-4c1c-48d9-b43c-9b93c1b9752b/joxajimegok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/3244/4582/files/find_whatsapp_group_link_apk_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0806/4677/files/fopenumilikamuwix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9958/4680/files/car_battery_space_heater.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7111/1330/files/java_swing_tutorial.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_off000065b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65B6 5208 bytes
SHA-256: 39dfc4656035a9fe1412a58425ecd60159a409bce6b966c41073bf13e9541d18
font_01_sfnt_off00007789.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7789 9968 bytes
SHA-256: 3dd65e8f3386a55bcb24223d1a304a6c1658fe465e3ca7ccd34bf49eaf1aeb21