Malicious PDF — malware analysis report

Static analysis result for SHA-256 d67ade8f67d6984d…

MALICIOUS

PDF

37.1 KB Created: 2020-08-04 17:52:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e049e13f15ee5d8eb9f353184cf36c6 SHA-1: 3455df367574152ad3bc2f4e416f8a6dd641ba6a SHA-256: d67ade8f67d6984d5b83d0cae3558c30297c98c69e1424db659f58d69921bd92
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains a URL that appears to be the primary lure. This URL redirects to a link farm hosted on Shopify, ultimately pointing to the malicious ttraff.ru domain. The intent is to trick users into downloading a malicious file by posing as a legitimate resource.

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.ru/pify?keyword=technical+analysis+explained+by+martin+pring+free+pdf
    • http://files.aussiebeader.com/uploads/1/3/0/8/130874648/7a805a.pdf
    • http://files.littlestarzpreschool.com/uploads/1/3/1/4/131437983/1485b.pdf
    • http://dinega.takemyhandcaitlin.com/uploads/1/3/1/4/131438437/9844627.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96226605796.pdf
    • https://cdn.shopify.com/s/files/1/0429/9309/0714/files/60835152200.pdf
    • https://cdn.shopify.com/s/files/1/0431/9074/7295/files/19261395665.pdf
    • https://cdn.shopify.com/s/files/1/0428/4294/7750/files/buxalok.pdf
    • https://cdn.shopify.com/s/files/1/0431/5283/4717/files/duxanunuzejutezun.pdf
    • https://cdn.shopify.com/s/files/1/0437/9561/1809/files/l120_john_deere.pdf
    • https://cdn.shopify.com/s/files/1/0434/6550/6966/files/45539230917.pdf
    • https://cdn.shopify.com/s/files/1/0433/4757/4949/files/21939432098.pdf
    • https://cdn.shopify.com/s/files/1/0437/1221/7241/files/27319448505.pdf
    • https://cdn.shopify.com/s/files/1/0431/2363/8426/files/poledawatibanoripazori.pdf
    • https://cdn.shopify.com/s/files/1/0431/2917/6232/files/text_over_image_css.pdf
    • https://cdn.shopify.com/s/files/1/0427/9340/2534/files/pamujokurixe.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_off00005081.bin
1668c1b0da6142fbb69a89136f8f401bbb41fa2180d6a09430ca5f51bf69b7c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5081 5828 bytes
font_01_sfnt_off0000643a.bin
f0a2980aced40077d191010601d0be5c6af1ed5dbbe6be0aff486e3944c827a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x643A 10288 bytes

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