Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee51d0a2b851d47c…

MALICIOUS

PDF

65.7 KB Created: 2020-11-07 05:12:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 3f7dd949ce3ab734aff85a26807537a1 SHA-1: 8e9412aa81eee8fbcb06880d07513c801b4e9605 SHA-256: ee51d0a2b851d47cad5f31256023545d315d2e5f29a9373b1be12add8987bb34
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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://trafftec.ru/123?keyword=super+mario+bros+rom+hacks+online PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4367622/normal_5f89826808a71.pdfIn PDF document text
    • https://babikovinemixe.weebly.com/uploads/1/3/1/8/131856339/8d113dbc76e.pdfIn PDF document text
    • https://damitonamusu.weebly.com/uploads/1/3/4/3/134306925/65ea6541d90f9f3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388293/normal_5f928c78635bd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381104/normal_5f9bd9a4a4f45.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452389/normal_5fa2be66d2e71.pdfIn PDF document text
    • https://wajiresejepo.weebly.com/uploads/1/3/0/7/130774962/4418284.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412592/normal_5f93a0c47da24.pdfIn PDF document text
    • https://jakemujilofadam.weebly.com/uploads/1/3/1/3/131380171/bawelalamagov_sogunomapade_superisakape.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dukexajuj/jolalukirefilo.pdfIn PDF document text
    • https://s3.amazonaws.com/xezonijida/auld_lang_syne_sheet_music_piano.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23e1b2a4-a374-4a9c-bad8-f24820681aab/vifemalemodebegagepa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/36d2abab-56cb-4581-b78d-82a347a53719/fijereguzifogejubuloni.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5a3ae154-9371-406b-bcc7-5565a81f95b4/pokemon_prism_rom.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_off0000c188.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC188 5480 bytes
SHA-256: b8f8b8d96e406c5770348b5078a904d38c261971f3a5251e0d2dacb4c2245bdf
font_01_sfnt_off0000d3f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3F5 11616 bytes
SHA-256: 01323d8c3b96c78a86bc99de04abbe7411d18c5af461a66634c383bbcc89ba13