Malicious PDF — malware analysis report

Static analysis result for SHA-256 56832265628150ae…

MALICIOUS

PDF

60.1 KB Created: 2020-08-30 11:07:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5057ab052d099634579fe46d346bf85c SHA-1: 2116f6296864ff1bc3b6787b7ef4df8f3c9d9cca SHA-256: 56832265628150ae3147699c19215c555e489c8d25f6d3496275de22d6dbbd20
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a PDF link farm. One of these links, 'https://ttraff.com/wix?keyword=nelson+madela+books', is flagged as a known malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to lure users to malicious content. The presence of numerous benign-looking Shopify links alongside the malicious one is a common tactic to obscure malicious intent.

Heuristics 3

  • 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.
  • 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.com/wix?keyword=nelson+madela+books
    • https://cdn.shopify.com/s/files/1/0433/3692/5342/files/vehicle_lifting_points.pdf
    • https://cdn.shopify.com/s/files/1/0439/3277/8651/files/21191627405.pdf
    • https://cdn.shopify.com/s/files/1/0431/5856/9115/files/59083185835.pdf
    • https://cdn.shopify.com/s/files/1/0434/7104/4770/files/37329691377.pdf
    • https://cdn.shopify.com/s/files/1/0432/5244/9444/files/90214170809.pdf
    • https://cdn.shopify.com/s/files/1/0439/7917/8142/files/ethylene_vinyl_acetate_copolymer_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0429/8365/3527/files/90373677199.pdf
    • https://cdn.shopify.com/s/files/1/0431/3815/4653/files/zarekafe.pdf
    • https://cdn.shopify.com/s/files/1/0427/8085/2383/files/tulovinabetup.pdf
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/ring_of_chest_vampirism.pdf
    • https://cdn.shopify.com/s/files/1/0431/8894/5064/files/famukijodafikejesagefi.pdf
    • https://cdn.shopify.com/s/files/1/0441/0900/4952/files/guitar_chords_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/1567/5815/files/8660263790.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000afeb.bin
739a611782622603eeaf2b014eef8e229ef868aaffbe7fb2a8712837a21dc585		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAFEB 5048 bytes
font_01_sfnt_off0000c104.bin
84820f8c070f38e672357e0c8e8a9634ae2b900986aee503f9dfb45c0da3b21e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC104 10272 bytes

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