Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd2ee45adfa40b31…

MALICIOUS

PDF

40.0 KB Created: 2020-11-09 09:40:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 59c798164395482a5f1679fb1f1f38ad SHA-1: 2d2649c6d40b065e43e52afc5ba3297e07f485e3 SHA-256: bd2ee45adfa40b31d256d52af20dfa0c18e32373b1e14cc8be9c63246dcdf709
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/aws?keyword=longview+isd+skyward+student+login PDF link annotation
    • https://tebefatudu.weebly.com/uploads/1/3/4/3/134329870/7263b53.pdfIn PDF document text
    • https://dirigesibujov.weebly.com/uploads/1/3/0/9/130969991/6d5389b70c5c20.pdfIn PDF document text
    • https://feloxoxux.weebly.com/uploads/1/3/4/0/134000485/7723801be.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369165/normal_5f89884160026.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388833/normal_5fa5df56018d6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412151/normal_5f96ce06d3f04.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374022/normal_5f8bf7e613ea9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://tarobuwezep.files.wordpress.com/2020/11/zofupawolunomew.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c404559-e8fd-4b76-bc42-c52ab9fdbb5b/10598675492.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fecb3299-307e-496b-ba12-5e2f34f11545/jetozovil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b25a736a-47b3-4a5a-a6d5-0969da65d03e/45028927269.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9ec9bb90-a1bb-4ef9-83e3-a47b42ffbafa/vepumarozezemu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9b157889-f31f-4f73-bc5a-dde290fafa90/ihome_manual_ibt230.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ecf1217-8e1f-4dde-8e09-1d1cda52e2b2/74575534124.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/687918d6-220b-4f1c-9bed-8fcb7f6aaaeb/74816345145.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005046.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5046 5132 bytes
SHA-256: a92471acaeb263707f249642fa3dfd9b03fd4e36c922200d8cfe1bca3a975163
font_01_sfnt_off000061e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61E8 10260 bytes
SHA-256: 7676d77d53d9f550436535d025ba90a6d9f3d749266633d538450f6155118258
font_02_sfnt_off00008504.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8504 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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