Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2273034fff12629…

MALICIOUS

PDF

45.8 KB Created: 2020-08-12 10:55:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 86a8693ea9295c29114b209d334c9043 SHA-1: 35b1a3fd00e4d187755c13dc494fca888d1b4e0c SHA-256: b2273034fff126291bc68ac0af4391988c44386d4fa6af86d6edb8244a35c8bd
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links directs to a known malicious redirector, ttraff.cc. This suggests the document is designed to lead users to malicious content through a series of redirects. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the exact lure.

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.cc/pify?keyword=niccol%25C3%25B2+ammaniti+anna+pdf
    • http://files.tonimccarthy.com/uploads/1/3/2/7/132741334/sotavoselajonug.pdf
    • http://fedasilo.ptnamarketbriefing.com/uploads/1/3/1/3/131384401/juwobuvisim.pdf
    • http://files.havenhomeindia.org/uploads/1/3/0/9/130969680/luwifamaxa.pdf
    • https://cdn.shopify.com/s/files/1/0430/7881/1810/files/boworivuta.pdf
    • https://cdn.shopify.com/s/files/1/0432/0244/5475/files/zatoxuvibux.pdf
    • https://cdn.shopify.com/s/files/1/0432/3904/7336/files/tozugugategutejutigixewat.pdf
    • https://cdn.shopify.com/s/files/1/0428/0962/2687/files/nomakapelo.pdf
    • https://cdn.shopify.com/s/files/1/0448/2321/6290/files/8083619786.pdf
    • https://cdn.shopify.com/s/files/1/0447/9274/2049/files/encyclopedia_of_mathematics_hazewinkel.pdf
    • https://cdn.shopify.com/s/files/1/0433/1605/2126/files/bermuda_tourist_map.pdf
    • https://cdn.shopify.com/s/files/1/0433/7431/3621/files/69658500046.pdf
    • https://cdn.shopify.com/s/files/1/0430/9496/6436/files/83552765900.pdf
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/wuvulobelolodotaragekef.pdf
    • https://cdn.shopify.com/s/files/1/0428/6627/8556/files/jexumivizeniwoviwi.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_off00007293.bin
145ecf03ae7f6cc3489f4114c493b8e694d949a684c60653f153ae10b70fe667		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7293 5132 bytes
font_01_sfnt_off000083ba.bin
83b4c5904c7a5af6574645597e5460416447b2347e7bf9cdac16f2fc46575bbd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83BA 11420 bytes

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