Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1c7d068d6eec68c…

MALICIOUS

PDF

40.6 KB Created: 2020-11-06 10:11:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: ac48cc91d7d0ec402913bd2bf1415a71 SHA-1: 633b47453c61818d0512cd40b19db849edfe6ca5 SHA-256: b1c7d068d6eec68ccf05ae385ba2ebf9f89940b61b035b0970f89d549e2fa428
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/aws?keyword=peter+online+typing+course+lesson+3 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366384/normal_5f8c89997492a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365541/normal_5f87160c3d8b3.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/4580a0ea-31a8-4ff7-890f-be864df5d808/local_mobile_monopoly_games.pdfIn PDF document text
    • https://s3.amazonaws.com/sasufufa/jezabo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d942300-0fb8-4587-8839-988bf78b1078/wijusijoderaja.pdfIn PDF document text
    • https://s3.amazonaws.com/sorogamat/47237570427.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bfa1fbea-4f3d-4aa4-93c2-b22026771e93/38687502309.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2f373f90-10d4-45c0-8524-eaaf9c479b80/man_in_the_yellow_hat_name.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f653f2bf-d934-4f75-8116-bf69f5671688/wananalunimagarafixinofeb.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/732fa600-6993-4268-8b88-532d879a68bf/nujixuligogadivafe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e9bdc28-4577-45f8-bafa-347f4a301413/sefoped.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/04d7af9d-4a1e-4ddb-9c86-c731511033d4/76102261070.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/251b0b45-7e1b-44b2-99e8-5d86f74cd7dc/jebabajisomizolova.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5140db70-a8f0-47a1-93a5-cba8960c7dbe/98499799501.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_off00005cfa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CFA 5160 bytes
SHA-256: 3ed0521a9b8a9e430970299067ad9a9bc767226afe46cd2302e6781f60a49946
font_01_sfnt_off00006eb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EB1 11948 bytes
SHA-256: 7c413cbe4822b89d7bfbd6fec5733212732978dbd736dfef48e495db91f8ca21

Open this report in the interactive analyzer, or submit your own file for analysis.