Malicious PDF — malware analysis report

Static analysis result for SHA-256 985d6d88056f39bd…

MALICIOUS

PDF

48.0 KB Created: 2020-08-28 16:54:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 794594f2a90356c07cdc70fd6a5869ed SHA-1: 748acb3f9e374b1cf926dedba1210680db625e12 SHA-256: 985d6d88056f39bdebf3aab8ef8b57880e4a6ce85fe4350a0a75680b0a815482
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, also contains this URL and numerous other links to Shopify-hosted PDFs, suggesting a link farm or SEO poisoning tactic. The primary malicious URL is 'https://ttraff.com/pify?keyword=come+tingere+le+uova+con+colorante+a', which likely serves as a gateway to further malicious content.

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/pify?keyword=come+tingere+le+uova+con+colorante+a
    • http://ritusigid.runninonfaithtc.org/uploads/1/3/0/7/130775358/7634734.pdf
    • https://cdn.shopify.com/s/files/1/0432/7381/4182/files/english_speaking_tips_in_marathi_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0448/1653/1617/files/que_es_el_amor_psicologia.pdf
    • https://cdn.shopify.com/s/files/1/0437/0300/9430/files/xekokufunavesofoxudonul.pdf
    • https://cdn.shopify.com/s/files/1/0441/2047/3752/files/pijepawipazuwukizija.pdf
    • https://cdn.shopify.com/s/files/1/0430/5525/1605/files/while_loop_in_unix.pdf
    • https://cdn.shopify.com/s/files/1/0432/1440/5793/files/kugatefoferoli.pdf
    • https://cdn.shopify.com/s/files/1/0433/7562/4355/files/mamuveru.pdf
    • https://cdn.shopify.com/s/files/1/0432/5670/9288/files/77490858020.pdf
    • https://cdn.shopify.com/s/files/1/0428/1604/5222/files/34679072490.pdf
    • https://cdn.shopify.com/s/files/1/0435/7508/3169/files/6345163867.pdf
    • https://cdn.shopify.com/s/files/1/0432/3423/0429/files/9296722820.pdf
    • https://cdn.shopify.com/s/files/1/0434/7317/4680/files/convert_decimal_to_hex.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000060de.bin
2ef9defc66a3d322203f892162529c6ad1feb15c393ff610b9e31d1fa89a081f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60DE 4908 bytes
font_01_sfnt_off0000717c.bin
c124211244f9955ce51ef3486768a06f280903d7faf49a285c33f3f01cb321bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x717C 14224 bytes
font_02_sfnt_off00009d60.bin
531e37f64a2e7dc3bfb257675d9e6c644c7b1597f33ba9a969cd005a7ed65660		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9D60 16312 bytes

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