Malicious PDF — malware analysis report

Static analysis result for SHA-256 06d1cb0613916582…

MALICIOUS

PDF

43.3 KB Created: 2020-10-30 07:08:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 47007536eae1708f9c2a9f54647cfa3a SHA-1: 66423dd49a5f8b1976d1e938b12c3182585457f7 SHA-256: 06d1cb061391658224bb6be0d4a175094e2a06f65a9fef5529f260b357fd87e4
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.me/123?keyword=william+crookes+cathode+ray+tube In PDF document text
    • https://xosetumigex.weebly.com/uploads/1/3/4/3/134371377/mivevomopaki.pdfIn PDF document text
    • https://buximinolid.weebly.com/uploads/1/3/1/3/131381316/c37fcbb4.pdfIn PDF document text
    • https://fikepeti.weebly.com/uploads/1/3/4/4/134489659/7436200.pdfIn PDF document text
    • https://dowamiwimeguv.weebly.com/uploads/1/3/0/7/130775936/pulanemab.pdfIn PDF document text
    • https://medizagokitoni.weebly.com/uploads/1/3/2/3/132303310/bolinixadavivuxat.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006ab9.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006ab9.bin)
    • https://uploads.strikinglycdn.com/files/df8375d1-65c7-4598-905b-a70c05dc0dba/68880574348.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f0c9fff-3c8f-497f-85aa-0f6bc93c3266/72843496009.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d659e568-b86a-4b9c-96e3-515137802143/wudifomite.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4102eb1a-698f-4be3-b5ac-afa0e4741cbe/7_on_7_flag_football_plays_with_blocking.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/56248cc4-80e0-4c06-a94f-42d47561e06e/11134560093.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2ad105c2-dc91-484e-8b4a-fff43d329174/audi_a3_wiki_eng.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0669c78d-6442-44a6-9dc0-f7158fe36379/mepajumuravibe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/3795/2680/files/highest_point_in_dayton_ohio.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/146f3d8f-deb0-41c4-bdc3-442a1bd4578f/69641248335.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_off00006ab9.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006ab9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AB9 5496 bytes
SHA-256: 837921e91fad4b76e64255ee9745ee9a51d4bc3703d30680d04351935df4f393
font_01_sfnt_off00007d4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D4E 10308 bytes
SHA-256: 7dc9098f6c9f5ad02cc1ae4a56f6268c0c800245fa371fd4368c35ae14b1100b

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