Malicious PDF — malware analysis report

Static analysis result for SHA-256 224591f871e0befd…

MALICIOUS

PDF

41.4 KB Created: 2020-10-08 19:29:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 70d9e80d3ddad4ebfd3b36073e8b040b SHA-1: 726408e84d1e14d18eb320ebc4cb114a7049406b SHA-256: 224591f871e0befdec2a2641eac4a9858abacc5bf85c2c075f4e9e29c9220915
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, including one pointing to a known malicious redirector infrastructure at `https://cctraff.ru/strik?keyword=the+private+eyes+full+movie+download`. The document body and embedded links suggest a lure for users seeking movie downloads, which is a common tactic for phishing or distributing malware. The presence of multiple Shopify-hosted PDF links indicates a link farm strategy to improve search engine ranking for malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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://cctraff.ru/strik?keyword=the+private+eyes+full+movie+download In PDF document text
    • http://files.yogascapesinjapan.com/uploads/1/3/1/8/131856569/9948062.pdfIn PDF document text
    • http://files.thebikery.co.nz/uploads/1/3/0/9/130969079/9729783.pdfIn PDF document text
    • http://mekajej.sheetalajmani.com/uploads/1/3/0/8/130814328/kepapum.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2638/1975/files/hey_dude_shoes_women.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/2779/5615/files/kh2_dive_into_the_heart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/1138/6787/files/pokokev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/1080/4890/files/96442808054.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/8454/8763/files/banana_kong_hack_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/2651/7668/files/7871535696.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/02a7e217-a05d-437e-9555-d0f72597a44f/wagamulixorozibobe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b312e5e3-e6bd-4248-8183-a9e53514455a/sivugorefazowixo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2bec0bf4-840b-4593-884b-1acc420ded78/modunadutefakije.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/78265811-0d07-4e2e-bc97-9723aaf6a64c/vejitomufoxanuv.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_off00006227.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6227 5484 bytes
SHA-256: a05ee905d3828f76f4510a7623c455ac7cc4e79b88b7914916945232e7e44297
font_01_sfnt_off000074be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74BE 10668 bytes
SHA-256: ec0436439f974d5c85ce560d508ce511748e62551c14d5fe4308dab62d4b2939

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