Malicious PDF — malware analysis report

Static analysis result for SHA-256 d827f99d514873f5…

MALICIOUS

PDF

62.6 KB Created: 2021-02-24 20:52:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 7ed548b987366a55eb2a60e3d0a4bfbe SHA-1: 56482ea4b1d94f61ce4f3d8cd53575ae46e346fb SHA-256: d827f99d514873f590fb9197fb3f99378ecd39eae55402f6e0bca83956fc4512
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://bologen.ru/wix?keyword=digital+design+vahid+solution+manual+2ed PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4403140/normal_6009ef011599f.pdfIn PDF document text
    • https://cdn.sqhk.co/xufaribo/nggKgct/ninja_foodi_air_fryer_oven_dimensions.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403406/normal_5fc8dcf2ecc37.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426557/normal_603365ad3d7a3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379605/normal_5ff429d766a48.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470523/normal_5fdd5a3f926a3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489733/normal_5fe1c0349decf.pdfIn PDF document text
    • https://cdn.sqhk.co/naketego/hdjfAge/95295326851.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378379/normal_5fdd7662e4702.pdfIn PDF document text
    • https://cdn.sqhk.co/jagakutojut/LjcgPrn/fiwesowagijuvusanoxipapa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484169/normal_5fcf407ac079d.pdfIn PDF document text
    • http://rubeatyshop.xyz/accident_reports_youngstown_ohiovllbg.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403428/normal_60021b0a52fc3.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_off0000ba60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA60 5332 bytes
SHA-256: 59dfef0bb90b48859a8d8df6d8574541619ee274f14d32435ba38ccc8ef56515
font_01_sfnt_off0000cc6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC6C 9740 bytes
SHA-256: f2189ed7373b0c7fb2afdad9246a3b75504a3a9a4357bee626f9169ed11ea349