Malicious PDF — malware analysis report

Static analysis result for SHA-256 46072e9cb46bbf03…

MALICIOUS

PDF

70.5 KB Created: 2021-02-22 23:03:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 16a1cfc527f01a08f07832ac0707d10b SHA-1: b80a6c53ca24781d973837e512a4d0fb2ccecd15 SHA-256: 46072e9cb46bbf034b9092c684d76e9717a59ede8d323599c0791be19a9e4fc7
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://leonvi.ru/wix?keyword=goodbye+and+thanks+for+all+the+fish+factorio PDF link annotation
    • https://nutevozugunejeb.weebly.com/uploads/1/3/1/4/131483143/wezexujomalemif-tumel.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402953/normal_600407d4360e3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469374/normal_5fcc9d188adb1.pdfIn PDF document text
    • http://kyrgyztours.com/dragon_block_c_mod_1.8.9h33j5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370304/normal_5fe3e4b53eb79.pdfIn PDF document text
    • https://pilonalamajavex.weebly.com/uploads/1/3/1/1/131164122/pagunug_senovivumorife_befujatana.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422392/normal_602aafd0a807d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4503309/normal_603257f597ecb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417806/normal_5fcc16539fad1.pdfIn PDF document text
    • https://lelusujizuzu.weebly.com/uploads/1/3/1/4/131438438/4889433.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453105/normal_5fe9d2ba9c22e.pdfIn PDF document text
    • https://wosobariwosamu.weebly.com/uploads/1/3/4/3/134372044/lapobepumawi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393883/normal_600134ca7a6cf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413225/normal_5ff307f28fe40.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393632/normal_5fc7a8d123b54.pdfIn PDF document text
    • https://limikasideg.weebly.com/uploads/1/3/4/4/134446439/fevobajenabinuxom.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d767.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD767 5444 bytes
SHA-256: 8732c8602cd1f8d07f20acd149a417b9e1edf2ef581fdf3d26f6231a0cb86404
font_01_sfnt_off0000e9f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9F0 10236 bytes
SHA-256: 7c9d25802c108d4194e1cdc5fce8732aede1e78e16680fae14458ab0aa7109b2