Malicious PDF — malware analysis report

Static analysis result for SHA-256 47ee71b2922b28d1…

MALICIOUS

PDF

66.8 KB Created: 2021-01-26 23:02:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: a9ef14e77583a3ddf127f04cc95901e1 SHA-1: 65c3b03f841b371a6e74dca6fc6f2aa279302f5b SHA-256: 47ee71b2922b28d1f5d3463b510c4fb9ea8f26722742d8ecfc89ae308321a71a
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://maypoin.ru/123?utm_term=good+riddance+tabs+chords PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4382643/normal_600f7b5e749e8.pdfIn PDF document text
    • http://legalevi.22web.org/black_panther_hd_wallpaper_for_pc.pdfIn PDF document text
    • http://lowuwirakob.66ghz.com/8921338490.pdfIn PDF document text
    • https://cdn.sqhk.co/tiwoxebu/hhFyjhI/88092601032.pdfIn PDF document text
    • https://xibimitavidin.weebly.com/uploads/1/3/1/8/131871740/bulorevewed.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450439/normal_5fe50c74a2e45.pdfIn PDF document text
    • https://jelebemurufipo.weebly.com/uploads/1/3/4/4/134442628/5b156d2ad644e8.pdfIn PDF document text
    • https://fisujurij.weebly.com/uploads/1/3/1/4/131437504/gazemisuleloda.pdfIn PDF document text
    • https://gifetapajuloper.weebly.com/uploads/1/3/4/6/134682222/016343ac6e.pdfIn PDF document text
    • http://mignonette.space/neon_snake_print_bikini9hlny.pdfIn PDF document text
    • http://noverst.xyz/31720226984nj7n9.pdfIn PDF document text
    • https://japipimimobuxi.weebly.com/uploads/1/3/1/0/131071183/xaxufixoko.pdfIn PDF document text
    • https://mefufexuwi.weebly.com/uploads/1/3/4/0/134019004/1488123.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365542/normal_5fd9c4065f9fc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tidegofavinugaw.epizy.com/broken_angel_helena_song.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_off0000c9a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9A9 5164 bytes
SHA-256: 97a534ae9ed385d6ac87b3c05ae5a1cf11e49179632830a5dcfdf3b77ea8f07f
font_01_sfnt_off0000db2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB2A 10376 bytes
SHA-256: 784fa727bde552726f32b3c309b6f565feb8fae14375d48a91d18e0a5349dfa3