Malicious PDF — malware analysis report

Static analysis result for SHA-256 da04f522ac7be09b…

MALICIOUS

PDF

49.7 KB Created: 2020-08-02 14:44:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 48c9e76ceb5c0af9004b71a9864d7444 SHA-1: 889aac58208bae48de93650857fbe407c0bca399 SHA-256: da04f522ac7be09b40d7f3e302fb7a40ed11649bf7846b6df308a58fd1357086
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF file contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though partially corrupted, contains text referencing 'Google docs journal template' and includes the malicious URL https://ttraff.cc/pify?keyword=google+docs+journal+template. This suggests a phishing or social engineering attack aiming to redirect users to malicious infrastructure. The presence of many links to Shopify domains, some marked as benign, indicates a link farm strategy, likely to obscure the malicious redirector.

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=google+docs+journal+template
    • http://files.heavygrail.net/uploads/1/3/1/3/131380733/bitat.pdf
    • http://files.waterfrontmarysville.com/uploads/1/3/0/8/130814402/2c3b0362a3b.pdf
    • http://files.jazzbeyondborders.com/uploads/1/3/1/4/131407152/vobezusowok-puvufewekapuke.pdf
    • http://files.fourmotion.com/uploads/1/3/0/9/130969160/64128.pdf
    • https://cdn.shopify.com/s/files/1/0431/4152/9754/files/suworasa.pdf
    • https://cdn.shopify.com/s/files/1/0430/6056/0021/files/nisurudogaxokoxer.pdf
    • https://cdn.shopify.com/s/files/1/0437/5409/4743/files/22007457236.pdf
    • https://cdn.shopify.com/s/files/1/0430/9683/4212/files/zafokajukizexesevubebu.pdf
    • https://cdn.shopify.com/s/files/1/0432/9740/7126/files/22233572144.pdf
    • https://cdn.shopify.com/s/files/1/0429/0176/6310/files/61792095965.pdf
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/nebojirubelepirag.pdf
    • https://cdn.shopify.com/s/files/1/0435/0024/1061/files/punegedokizujoniriken.pdf
    • https://cdn.shopify.com/s/files/1/0434/5928/1048/files/70253259282.pdf
    • https://cdn.shopify.com/s/files/1/0431/6574/5314/files/ne-_yo_libra_scale.pdf
    • https://cdn.shopify.com/s/files/1/0438/1956/5216/files/36929729150.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_off000080b6.bin
cf5eafdad94f7993b32d3541c1f758723b252f496bc89ce889170815ab3fc840
pdf-font-stream PDF embedded font (sfnt) at offset 0x80B6 5500 bytes
font_01_sfnt_off00009361.bin
45bda20d483455f75d019a200d60b448b90400febe62af42c636d6d2f51d6f68
pdf-font-stream PDF embedded font (sfnt) at offset 0x9361 11896 bytes