Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0fa30ffe3e91232…

MALICIOUS

PDF

34.9 KB Created: 2020-11-06 03:50:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-01
MD5: 6b7c02e9f517d72117652ab615ce3768 SHA-1: 29b9f6f035e550354985d6e38d335b0330c26fb6 SHA-256: f0fa30ffe3e91232ec6c0f1e07ec29a10f1ca18b31ec94ab47d0cb0ed5a7196d
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://trafffi.ru/123?keyword=barra+de+navidad+jalisco+hotels PDF link annotation
    • https://gidepojijozi.weebly.com/uploads/1/3/4/2/134235950/4620909.pdfIn PDF document text
    • https://vekejuritikoj.weebly.com/uploads/1/3/1/8/131857631/wurogopijeza.pdfIn PDF document text
    • https://xowiwatodilesa.weebly.com/uploads/1/3/4/3/134363744/5e11fe9b2e1.pdfIn PDF document text
    • https://pirowefe.weebly.com/uploads/1/3/4/4/134444143/mumagipawi-nonaxuvugix-pixujolonu.pdfIn PDF document text
    • https://vefozifus.weebly.com/uploads/1/3/4/3/134382693/keruzubaditenuxa.pdfIn PDF document text
    • https://xejibojap.weebly.com/uploads/1/3/4/3/134310503/xexuvewagusu-tufes-temexebu-vejibolujuset.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/8b041aaf-c63a-4d22-976e-f868a8318d66/avengers_endgame_watch_online_free_hd_reddit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df81a56b-d848-4fcf-9cf9-681b2633ec24/function_operations_algebra_2_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/12dbdf82-08b9-4fec-b4ae-923b31a01a20/lomejowaruvepasevimavux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1be9f295-3905-4c27-bbe4-e59e25b56590/scottsboro_an_american_tragedy_watch_online.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/166fdf20-8fb7-46c2-bc36-a97c118f395c/73627658962.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3844650e-f13e-4e66-a786-9c24d64a6a2a/49228516605.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/afd1d851-1bad-4201-b827-122648818f78/describe_helping_relationship.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_off0000487f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x487F 5212 bytes
SHA-256: bce3cef4559a864684fb13971c6104c1765a374510724bc16de748fccefb4c3b
font_01_sfnt_off00005a3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A3B 10864 bytes
SHA-256: d21cda34fe3d5ecc7c39031e871b15cf391f66fdefa0964286cd2dcfcacf32c6