Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4036b40ba2ba39c…

MALICIOUS

PDF

41.0 KB Created: 2020-08-22 15:08:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 76f89c24fdf45bf569908bf392675702 SHA-1: 1a6ba2868b839e453c43910c0d08c6311f03d6a3 SHA-256: c4036b40ba2ba39cf7863f29cfe14146fe3aa57a432ccada32b27586895c5824
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'wedding invitation template' and a URL that appears to be a lure. The primary malicious URL is https://ttraff.cc/pify?keyword=wedding+invitation+template+free+orchid, which redirects to other benign-looking Shopify links, likely to obscure the malicious intent. The file is identified as a malicious redirector, aiming to lead users to harmful 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.cc/pify?keyword=wedding+invitation+template+free+orchid
    • http://files.marsjoyofpainting.com/uploads/1/3/1/8/131871433/b077c77.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/26450106566.pdf
    • https://cdn.shopify.com/s/files/1/0430/5698/8311/files/80122916024.pdf
    • https://cdn.shopify.com/s/files/1/0433/3505/7559/files/samolote.pdf
    • https://cdn.shopify.com/s/files/1/0432/0857/3085/files/zagirogewawugi.pdf
    • https://cdn.shopify.com/s/files/1/0434/9899/5877/files/gumumisokojuzemuzaxisoken.pdf
    • https://cdn.shopify.com/s/files/1/0434/6321/3209/files/online_brochure_maker.pdf
    • https://cdn.shopify.com/s/files/1/0431/2816/0417/files/vixedube.pdf
    • https://cdn.shopify.com/s/files/1/0440/3141/0326/files/muluxaviv.pdf
    • https://cdn.shopify.com/s/files/1/0437/1021/8391/files/q_se_significa_uniforme.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gomejalubewetilukifij.pdf
    • https://cdn.shopify.com/s/files/1/0432/9370/4356/files/69671199286.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_off00006255.bin
c2faee472a7cefe4c480b633dd025a61242b77ef23272fac04522d236a42f6c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6255 5464 bytes
font_01_sfnt_off000074d0.bin
2996a5b317e55790a0f7d165e5a3bd3d96f9226ad8e861bb8ee5c1bdf6ac39bb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74D0 10048 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.