Malicious PDF — malware analysis report

Static analysis result for SHA-256 a017202fc02221a7…

MALICIOUS

PDF

46.6 KB Created: 2020-11-06 01:11:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-18
MD5: cfb1df32eabf39ffc78d26342fdae2e1 SHA-1: ea363ec1fa7193232d9a9439ea627f227dd58f2a SHA-256: a017202fc02221a72df2f8217d45ed2c1f650b4011623c629fac8d62c7662b60
96 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://trafffi.ru/strik?keyword=ithaca+town+court+ny PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4376358/normal_5f8a139bb951b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366316/normal_5f8a50a630b4b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371025/normal_5f8d94a7c7e4f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391013/normal_5f9012f2d9927.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369904/normal_5f9439e158550.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393635/normal_5f9fa9fc75d18.pdfIn PDF document text
    • https://gixawixo.weebly.com/uploads/1/3/4/3/134322292/0fb365899370cf.pdfIn PDF document text
    • https://rugeponejap.weebly.com/uploads/1/3/4/4/134487210/wuzapofit.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/1b9f4960-78bc-4f21-b701-df402823fb68/45425803101.pdfIn PDF document text
    • https://s3.amazonaws.com/farezelof/auto_electrician_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b96b6858-ec11-4fc5-9a6d-308d96618949/ximidinapabuzozan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb45cbc5-2e0a-4ba7-b20f-6d459b5b78f0/lijinolakote.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000061de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61DE 4808 bytes
SHA-256: ef24837b23afc5319d20a0929589d4fdb9504f8e5687e944dd596338d14bb4ca
font_01_sfnt_off00007249.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7249 11304 bytes
SHA-256: 2a2b7ea13d19f021cb7580111e58a428851cb2856069ee3a8946c4264b01c2e1
font_02_sfnt_off000098e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98E1 16076 bytes
SHA-256: c497e7020956884876526f9a9d0138e4369f5c46b3391b62f16f330352c2bc8d