Malicious PDF — malware analysis report

Static analysis result for SHA-256 3381ada848e286c1…

MALICIOUS

PDF

45.5 KB Created: 2020-08-07 08:56:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7a3e740dde2f0cd4913da15b4bfd4267 SHA-1: 5a54dce99de48b4b7077c1d87c2f3baf085e7309 SHA-256: 3381ada848e286c1d2720b604605932d527ff00f41b8f6e0772fcec5d817c201
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to Shopify-hosted PDFs. The primary link, disguised as a 'data studio download pdf', redirects through 'ttraff.com' to a malicious destination. This indicates a phishing or scam attempt leveraging SEO techniques to distribute 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=data+studio+download+pdf
    • http://venipo.communityecologylab.com/uploads/1/3/0/7/130775350/laralijazaguwaf.pdf
    • http://rabozig.druhatrava.us/uploads/1/3/2/6/132695329/fuzabawox.pdf
    • http://files.baremedispa.com/uploads/1/3/2/6/132696500/2377327.pdf
    • http://files.dreamhighstudio.com/uploads/1/3/0/8/130814225/c27f85b60b.pdf
    • http://files.saracarterdance.co.uk/uploads/1/3/1/6/131607522/bologenekom.pdf
    • http://files.saracarterdance.co.uk/uploads/1/3/1/6/
    • https://cdn.shopify.com/s/files/1/0438/8323/3448/files/detuwareda.pdf
    • https://cdn.shopify.com/s/files/1/0429/3971/1655/files/luzigilisimemiz.pdf
    • https://cdn.shopify.com/s/files/1/0428/4334/0956/files/fusamudax.pdf
    • https://cdn.shopify.com/s/files/1/0435/2701/2507/files/99616093188.pdf
    • https://cdn.shopify.com/s/files/1/0431/6371/3690/files/94672679012.pdf
    • https://cdn.shopify.com/s/files/1/0431/0361/7173/files/90678758268.pdf
    • https://cdn.shopify.com/s/files/1/0429/0979/4463/files/nobevu.pdf
    • https://cdn.shopify.com/s/files/1/0438/4777/8469/files/tupemabulalu.pdf
    • https://cdn.shopify.com/s/files/1/0432/1827/2423/files/php_multiple_constructors.pdf
    • https://cdn.shopify.com/s/files/1/0435/9002/5375/files/un_biologi_sma.pdf
    • https://cdn.shopify.com/s/files/1/0428/6545/9366/files/vepajadikelazapus.pdf
    • https://cdn.shopify.com/s/files/1/0437/3797/2897/files/gunufunurux.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/depuwi.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_off00006d0a.bin
7f5806151126f9de8d22e7e29a8bd8f67e5dff9b75da19335e237980787930f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D0A 5028 bytes
font_01_sfnt_off00007e59.bin
50fd9495819162f4ce13532c04d3169199e1229611cc81e6f09eae5164f581b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E59 13280 bytes

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