Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ced04ac2ba9f87f…

MALICIOUS

PDF

71.7 KB Created: 2021-01-25 16:09:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 5e14f1b8c106998d0e042f172a8a8912 SHA-1: 52144106f58264f976d31087c4d95a5c0afbeafb SHA-256: 7ced04ac2ba9f87f66b412c46211dc4bf3aa432b3f553192a072c0b4df544ed2
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jottigo.ru/wb?keyword=spanish%20to%20english%20translation%20agency PDF link annotation
    • https://pegugigatusib.weebly.com/uploads/1/3/4/4/134460290/7504584.pdfIn PDF document text
    • https://cdn.sqhk.co/kaxonavi/hgjcjie/chase_mobile_app_check_deposit_not_working.pdfIn PDF document text
    • http://1xbet-sportstavki.fun/11109164966qkgfw.pdfIn PDF document text
    • https://cdn.sqhk.co/kozuvurop/1jgisbb/43397051204.pdfIn PDF document text
    • https://tutonaxubetu.weebly.com/uploads/1/3/5/2/135296536/jekidutawinetek.pdfIn PDF document text
    • https://xokebewogaxuwu.weebly.com/uploads/1/3/4/5/134588239/xikeg.pdfIn PDF document text
    • https://lutoropekitixes.weebly.com/uploads/1/3/1/3/131384777/moroluzifivebera.pdfIn PDF document text
    • http://bilkan.fun/fogebepeliserunikufetirar9h9g.pdfIn PDF document text
    • https://tudisapa.weebly.com/uploads/1/3/4/6/134660317/salozaxopevosew_bituk_wezegudu.pdfIn PDF document text
    • https://ketadamofexawun.weebly.com/uploads/1/3/5/3/135349072/7733941.pdfIn PDF document text
    • http://parrrtner.xyz/world_market_rugs_9x12jxxpu.pdfIn PDF document text
    • https://cdn.sqhk.co/lizupasepafu/jgiagjQ/69546200396.pdfIn PDF document text
    • https://zuzesewijolane.weebly.com/uploads/1/3/1/4/131406438/nejusovuz.pdfIn PDF document text
    • https://likomajuf.weebly.com/uploads/1/3/5/3/135321460/c5875668a817cd2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kovejenipo.epizy.com/belaseshe_full_movie_720p.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_off0000dafb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAFB 5400 bytes
SHA-256: 3bdfea40fffedebfa5150d0bdcadcf28b4fb6379dc1f946817ea9745f9ab340a
font_01_sfnt_off0000ed5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED5B 10848 bytes
SHA-256: 6abfece3b78e2fbf5a43e6ddc7123f8770b5c4b52a98eb14ae42c8c981f45b1d