Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee3c87f9ef539581…

MALICIOUS

PDF

34.9 KB Created: 2020-11-01 11:13:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 886d23490d890836225c07eeb287e15d SHA-1: d438fdc226b9dd957b4889448bb5077c38f35b11 SHA-256: ee3c87f9ef53958112a4ae57c0513b904a0f595bcf2f378161d63d15e18ce87e
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • 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://ttraff.me/123?keyword=north+palm+beach+marina+north+palm+beach+fl In PDF document text
    • https://cdn-cms.f-static.net/uploads/4365661/normal_5f87705af2e01.pdfIn PDF document text
    • https://xawiwewediwo.weebly.com/uploads/1/3/4/0/134017039/9236152.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374366/normal_5f8f2ab3ba103.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369324/normal_5f8898d2ec276.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415309/normal_5f9b125810757.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370561/normal_5f8c64796492e.pdfIn PDF document text
    • https://sakuvajavabese.weebly.com/uploads/1/3/1/3/131383602/mewutijufebosura.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/a49d6078-2dba-4c01-aec3-208381514e28/geguxizataluwaduzowi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e32be2cd-e568-4332-a00d-224aa23ca3c8/bepinoveda.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/43742ee7-8ec5-4f6f-8c8e-62e7ebe45305/85119010852.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/119f4374-df04-47ea-ab47-944207831956/actividades_para_maternal_en_guarder.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52c163aa-5048-4f5d-bac7-aeed4e8ba27b/82060258526.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1edbca31-2be9-46de-945d-76ba9803761b/12320867939.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/21507682-34ef-4ea8-9e47-8e7a84240170/xiwajawutopozowekowol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7af77d47-7f2a-4b3a-908e-f53d9310e862/22232520855.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_off00004a32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A32 5184 bytes
SHA-256: 7f6ce9960ed512b061470d024c2e57904498bb31db96d9e245d72fb5feba2506
font_01_sfnt_off00005bb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BB1 10376 bytes
SHA-256: 192605a7461d42599679d5de4eb9dc3f9a677db224584f444cad6212451b80af

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