Malicious PDF — malware analysis report

Static analysis result for SHA-256 9714bcde63a4b607…

MALICIOUS

PDF

39.8 KB Created: 2020-11-07 01:24:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 58f5a6aae28821f7249917809665c8ba SHA-1: 14df89223751a0919e9e02642f8b957443de72ca SHA-256: 9714bcde63a4b607a854289ec0fa7c46259d852b3776056c50b25e85b4ac935d
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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://trafffe.ru/aws?keyword=my+campus+link+fortis PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4374013/normal_5f8c57e9747b1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378383/normal_5f8ad2bd08607.pdfIn PDF document text
    • https://lisiladojorinin.weebly.com/uploads/1/3/0/8/130874519/7130866.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418575/normal_5f95f97fc85c6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406454/normal_5fa298ba0d7f1.pdfIn PDF document text
    • https://folemazilepi.weebly.com/uploads/1/3/1/1/131164248/fdd63f788.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369657/normal_5f9c5d35454c5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/7fc03d8a-fa23-427c-85a5-d28a943c28ea/jofivexiguwufawore.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/085ae71d-f922-4bfe-b008-3fc34969fc42/novixamobodakavuw.pdfIn PDF document text
    • https://s3.amazonaws.com/xekowuzixowepid/definity_hp_800_tire_rating.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/642e1c70-b291-40c9-b453-7ec1a0e6a319/26912956836.pdfIn PDF document text
    • https://s3.amazonaws.com/pirosisob/5380442761.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_off00005b7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B7C 5332 bytes
SHA-256: e45d24a5412ca1eca4b08c865a27c202aea4472d7184a9d7d586cdb7d31ba8c4
font_01_sfnt_off00006da5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DA5 10848 bytes
SHA-256: 7ec1bb3c663d5f071ca3b718a184a9195b78bd1ec6660e69470330b402d7e755