Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9482411f787ad3b…

MALICIOUS

PDF

48.0 KB Created: 2020-11-08 12:36:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-01
MD5: 547bdffc7cdc40e1fbacb73555cbc8a4 SHA-1: a7e048af4e4209940db98ad7820e1ad0ac37ac12 SHA-256: d9482411f787ad3bb37d6f44fdac7289150ad95c0fc6dc8289cf58eb962b9678
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/aws?keyword=reviews+tatcha+primer PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4406454/normal_5f9b1ce12cef8.pdfIn PDF document text
    • https://gozekukapitob.weebly.com/uploads/1/3/4/4/134443516/rikalux.pdfIn PDF document text
    • https://gilasagajeradek.weebly.com/uploads/1/3/4/6/134632792/zuvegi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383470/normal_5f8ce071a5ae5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392877/normal_5f99cd4aa3636.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380072/normal_5f8ad0f63e55b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371508/normal_5f94136fabc7c.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/40ee0213-be5b-4fd8-bab5-dc7d3ab6ddf3/sphere_grid_ffx_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/926370cf-35c1-46a4-a1ec-7ce246fde307/87981649341.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/13f69e4f-5eb4-415e-ae4f-b49ffc4a91e5/bagirogixuxikigibatamibo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2abc397b-c1ea-49b1-8f01-1d1128023f95/98012923022.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a20b4dfb-ccfd-42d0-b21f-33fc0947af40/nikukapiva.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_off00007bfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BFC 5300 bytes
SHA-256: dbc7241dd5bbcf214b92f79966b43f68257d4089b4c50f124e40aad9be269b55
font_01_sfnt_off00008df2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DF2 11060 bytes
SHA-256: 820b163f50e95e45071c2939b6f22736bfb71480a24787ee93dbe991d68af095