Malicious PDF — malware analysis report

Static analysis result for SHA-256 92b754687a9dfd81…

MALICIOUS

PDF

57.1 KB Created: 2020-08-23 21:30:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2800c26c0d8078c5ee2f81bc5193a37f SHA-1: 81dcd0d6fd0ef48a237dc13f18110eeb60ac3528 SHA-256: 92b754687a9dfd8168ad66a5acb15294179ede4c0f61c2abe20050173deb5255
130 Risk Score

Malware Insights

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

The PDF contains a link that functions as a malicious redirector, disguised with a call-to-action phrase. The document also exhibits characteristics of a link farm, with numerous external PDF links, many hosted on Shopify. The primary malicious URL identified is https://ttraff.cc/pify?keyword=beer+bottle+mockup+template+free, which is designed to redirect users to malicious content.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=beer+bottle+mockup+template+free
    • http://files.fishersflowers.com/uploads/1/3/1/3/131380390/f94bbf089be40a1.pdf
    • https://cdn.shopify.com/s/files/1/0437/2358/7733/files/dugurisig.pdf
    • https://cdn.shopify.com/s/files/1/0432/9970/0889/files/26193367027.pdf
    • https://cdn.shopify.com/s/files/1/0431/2124/6359/files/86378811593.pdf
    • https://cdn.shopify.com/s/files/1/0431/9831/6707/files/xonuxojegedizek.pdf
    • https://cdn.shopify.com/s/files/1/0428/5795/5494/files/englisch_analyse_formulierungen.pdf
    • https://cdn.shopify.com/s/files/1/0434/6540/8662/files/xasakenelegunimevawikoxa.pdf
    • https://cdn.shopify.com/s/files/1/0434/3329/6028/files/new_york_address_example.pdf
    • https://cdn.shopify.com/s/files/1/0439/0413/9416/files/9371691221.pdf
    • https://cdn.shopify.com/s/files/1/0429/1064/6435/files/kobemamotavawekon.pdf
    • https://cdn.shopify.com/s/files/1/0429/5720/9766/files/xedolakuvadinewu.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_off0000a3af.bin
cbfae05830932594d0e5923d4c751bb7ba079009e526ec18e4e0657eabb712f5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA3AF 5236 bytes
font_01_sfnt_off0000b572.bin
ca412baf61a89d3f0d8c1aaed67ff5745cbcecf41676c1e533841f0ee27446ef		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB572 10060 bytes

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