Malicious PDF — malware analysis report

Static analysis result for SHA-256 f967ed172a25259b…

MALICIOUS

PDF

42.7 KB Created: 2020-08-02 17:36:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5d42af31493d8c2a96e1fa98e790664d SHA-1: ffe0ab72d8fd2333c9cd42e3e0d8bd94b3e7756e SHA-256: f967ed172a25259b0847dd60d3fc4ebf7964188187b53cfb6f74680587f2b22c
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the critical heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The embedded URL 'https://ttraff.cc/pify?keyword=get+current+url+wordpress' is a key indicator of this redirection attempt. The document body, though heavily obfuscated, also contains this URL, reinforcing the malicious intent. The presence of numerous links, as noted by PDF_SEO_LINK_FARM, suggests a tactic to distribute malicious content or traffic.

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=get+current+url+wordpress
    • http://files.tclotus.com/uploads/1/3/1/4/131437513/kuxenowepimub.pdf
    • http://files.seventhdaybaptist.ca/uploads/1/3/1/4/131483491/28b785d521.pdf
    • http://files.aledoisdchoirs.com/uploads/1/3/1/4/131453054/zudabofe.pdf
    • https://cdn.shopify.com/s/files/1/0437/5642/1278/files/68443321598.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jivanup.pdf
    • https://cdn.shopify.com/s/files/1/0440/0427/8422/files/zogoxosexewozabe.pdf
    • https://cdn.shopify.com/s/files/1/0434/2474/3591/files/pygame_cheat_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0428/0942/6079/files/xotekawimuret.pdf
    • https://cdn.shopify.com/s/files/1/0436/1699/3440/files/bavuxanukeguzef.pdf
    • https://cdn.shopify.com/s/files/1/0432/3740/8936/files/besalan.pdf
    • https://cdn.shopify.com/s/files/1/0432/5769/2315/files/11506050635.pdf
    • https://cdn.shopify.com/s/files/1/0433/6877/5841/files/90946652061.pdf
    • https://cdn.shopify.com/s/files/1/0429/0271/6572/files/lureradin.pdf
    • https://cdn.shopify.com/s/files/1/0427/8488/2844/files/11458052586.pdf
    • https://cdn.shopify.com/s/files/1/0432/1381/5966/files/49790333965.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_off00005de0.bin
146fffc13fe344a921044cf551a5b0e2cc2a2d3ed45755532079cff453ef7a07		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DE0 4980 bytes
font_01_sfnt_off00006ef6.bin
fd3bd9ef706440b849c9a72d8bc51c68b2362b01f3041fc138dfbab66fd7b028		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EF6 14484 bytes

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