Malicious PDF — malware analysis report

Static analysis result for SHA-256 7075e6183de06727…

MALICIOUS

PDF

39.2 KB Created: 2020-09-01 13:26:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d9a592a2c2f79581d83831fd7144603e SHA-1: 68b1ac087764b4bf16281a0a935565f5ef8cffb1 SHA-256: 7075e6183de06727be1ef33c9178f68da7f228459e4aaa95472234a7b711d70f
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file contains a large number of embedded links, many pointing to external PDF files hosted on Shopify. The primary malicious link, https://ttraff.club/wix?keyword=pengertian+internet+adalah+pdf, is identified as a malicious redirector. The document's structure and content suggest it is part of a link farm or SEO manipulation scheme designed to drive traffic to malicious infrastructure.

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://ttraff.club/wix?keyword=pengertian+internet+adalah+pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/losefemoxubemowipajuforo.pdf
    • https://cdn.shopify.com/s/files/1/0432/4874/6651/files/67997239218.pdf
    • https://cdn.shopify.com/s/files/1/0438/5934/5573/files/biwotim.pdf
    • https://cdn.shopify.com/s/files/1/0437/4865/5265/files/bitaxufitunuzagawedemab.pdf
    • https://cdn.shopify.com/s/files/1/0431/9569/5267/files/c_generic_class.pdf
    • https://cdn.shopify.com/s/files/1/0460/7603/5236/files/apa_citation_guide_in_text.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/puneson.pdf
    • https://cdn.shopify.com/s/files/1/0429/7680/5013/files/semupogalovexubekerix.pdf
    • https://cdn.shopify.com/s/files/1/0432/2387/5746/files/causes_of_brain_tumor.pdf
    • https://cdn.shopify.com/s/files/1/0429/0219/2287/files/reportar_infinitum_telnor.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005cb4.bin
71c5308352a4a2fecff3c4c04c575f9e99dc3d9720509f6851a9fc93ba9a6e24		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CB4 5128 bytes
font_01_sfnt_off00006e1e.bin
00cf86bb995e46f1adc317f2915ff2c789877768b066a6cc0c3a65477c093c8b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E1E 10120 bytes

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