Malicious PDF — malware analysis report

Static analysis result for SHA-256 1194fefab0789295…

MALICIOUS

PDF

34.8 KB Created: 2020-11-09 12:22:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-11
MD5: 9404743b26cc7aa2641de3be00b227c9 SHA-1: 7a0a183967969a459a407ad72423b92a12d3d1fa SHA-256: 1194fefab07892950b1d1da3c557d4b922b5b01c1126f877557a339d63e70c18
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://traffset.ru/aws?keyword=d+d+stormwrack+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366369/normal_5f8ebe76650ee.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377647/normal_5f8c019fddaa6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416304/normal_5fa8c892c3c3e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384649/normal_5f972a6e50dc4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366009/normal_5f870479cf520.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368466/normal_5f8a17f56266b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/popagexexoza/32352017786.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/84b04e75-0237-4af4-98b6-a972c8c93545/mababate.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf5e1da2-cc75-4e0a-b506-6570d902fa5a/saset.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2f4b425c-d486-4209-8c13-9765f8fa9a45/11175911371.pdfIn PDF document text
    • https://s3.amazonaws.com/risalenefazozo/spore_cheat_codes_creature_stage.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b90daf6-869b-4a5b-9d95-98779f0596a6/13294835692.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a6dd445-54ae-4f6d-b6f9-3884418618dd/neon_elementi_nerelerde_kullanlr.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5b386c9-12b7-4224-9e37-0326f694e6e3/terraria_free_apk_full_game.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d0d987c-a119-4b58-8d08-105a7f5e96b7/79448986394.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_off00004809.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4809 5424 bytes
SHA-256: a18042b53983e942be2143d276677409dbb7132195c6f5fda9c15ceae82cd35e
font_01_sfnt_off00005a81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A81 10760 bytes
SHA-256: 132ad3a9c8ee46551a23849a1e41ecc2629e66946aba67358a7861911022f9a2